/* ═══════════════════════════════════════════════════════════
   FFT-GYRO PREMIUM WEBSITE — Design System & Styles
   Dark-Tech Industrial Aesthetic
   ═══════════════════════════════════════════════════════════ */

/* ─── CSS CUSTOM PROPERTIES ─── */
:root {
  /* Colors */
  --bg-primary: #0F1115;
  --bg-secondary: #14171C;
  --bg-card: #181C22;
  --bg-card-hover: #1E2229;
  --bg-elevated: #1A1E25;
  --border-color: rgba(0, 174, 239, 0.12);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --cyan: #00AEEF;
  --cyan-bright: #00ffff;
  --cyan-glow: rgba(0, 174, 239, 0.15);
  --cyan-glow-strong: rgba(0, 174, 239, 0.3);
  --text-primary: #FFFFFF;
  --text-secondary: #A0A8B8;
  --text-muted: #6B7280;
  --text-kicker: #00AEEF;
  --roll-red: #FF4757;
  --pitch-green: #2ED573;
  --yaw-blue: #1E90FF;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;

  /* Layout */
  --container-max: 1280px;
  --header-height: 72px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-hero: 1200ms ease-in-out;
}

/* ─── RESET & BASE ─── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

body.product-page {
  position: relative;
  isolation: isolate;
  --info-border: rgba(132, 183, 220, 0.18);
  --info-border-strong: rgba(132, 183, 220, 0.34);
  --info-text: #edf4fb;
  --info-text-soft: #c6d5e5;
  --info-accent: #5fc9ff;
  --info-shadow: 0 28px 80px rgba(0, 0, 0, 0.34);
  --info-radius-md: 20px;
  --info-radius-sm: 14px;
  --info-max-width: 1360px;
  --info-transition: 280ms cubic-bezier(0.22, 1, 0.36, 1);
}

.product-particle-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.82;
  transform: translateZ(0);
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 1) 68%, rgba(0, 0, 0, 0.22) 100%);
  -webkit-mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 1) 68%, rgba(0, 0, 0, 0.22) 100%);
}

body.product-page > section,
body.product-page > footer {
  position: relative;
}

.section-tracker {
  display: none;
}

@media (min-width: 1280px) and (hover: hover) and (pointer: fine) {
  .section-tracker {
    position: fixed;
    top: 50%;
    left: clamp(24px, 2.8vw, 56px);
    z-index: 900;
    display: block;
    width: 224px;
    color: var(--text-secondary);
    opacity: 0;
    transform: translate3d(-18px, -50%, 0);
    transition:
      opacity 420ms cubic-bezier(0.22, 1, 0.36, 1),
      transform 520ms cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
  }

  .section-tracker.is-visible {
    opacity: 1;
    transform: translate3d(0, -50%, 0);
    pointer-events: auto;
  }

  .section-tracker.is-idle-hidden {
    opacity: 0;
    transform: translate3d(-18px, -50%, 0) scale(0.98);
    pointer-events: none;
  }

  body.no-scroll .section-tracker {
    opacity: 0;
    transform: translate3d(-16px, -50%, 0);
    pointer-events: none;
  }

  .section-tracker-shell {
    position: relative;
    display: grid;
    justify-items: start;
    padding: 0.95rem 0 0.95rem 0.1rem;
    isolation: isolate;
  }

  .section-tracker-shell::before {
    content: "";
    position: absolute;
    top: 0.3rem;
    bottom: 0.3rem;
    left: 0;
    z-index: -1;
    width: 34px;
    border: 1px solid rgba(0, 174, 239, 0.08);
    border-radius: 999px;
    background:
      linear-gradient(180deg, rgba(13, 19, 27, 0.62), rgba(5, 8, 13, 0.76));
    box-shadow:
      0 18px 42px rgba(0, 0, 0, 0.18),
      inset 0 1px 0 rgba(255, 255, 255, 0.035);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .section-tracker-map {
    position: relative;
    display: grid;
    justify-items: start;
    gap: 0.86rem;
    padding: 0.35rem 0;
  }

  .section-tracker-line {
    position: absolute;
    top: 1rem;
    left: 15px;
    bottom: 1rem;
    width: 2px;
    overflow: hidden;
    border-radius: 999px;
    background: linear-gradient(
      180deg,
      transparent,
      rgba(132, 183, 220, 0.16) 12%,
      rgba(132, 183, 220, 0.22) 50%,
      rgba(132, 183, 220, 0.16) 88%,
      transparent
    );
  }

  .section-tracker-progress {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(
      180deg,
      rgba(0, 174, 239, 0.18),
      rgba(0, 174, 239, 0.92),
      rgba(105, 224, 255, 0.4)
    );
    box-shadow: 0 0 18px rgba(0, 174, 239, 0.36);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 420ms cubic-bezier(0.22, 1, 0.36, 1);
  }

  .section-tracker-item {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 32px max-content;
    align-items: center;
    gap: 0.78rem;
    width: max-content;
    min-height: 42px;
    padding: 0;
    color: rgba(178, 188, 205, 0.68);
    text-align: left;
    opacity: 0.9;
    transition:
      color var(--transition-base),
      opacity var(--transition-base),
      transform var(--transition-base);
  }

  .section-tracker-item:hover,
  .section-tracker-item:focus-visible,
  .section-tracker-item.is-active {
    color: var(--text-primary);
    opacity: 1;
  }

  .section-tracker-item:hover,
  .section-tracker-item:focus-visible {
    transform: translateX(3px);
    outline: none;
  }

  .section-tracker-item::after {
    content: attr(data-label);
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
    max-width: 180px;
    padding: 0.56rem 0.72rem;
    border: 1px solid rgba(132, 183, 220, 0.14);
    border-radius: 999px;
    background:
      linear-gradient(180deg, rgba(17, 24, 34, 0.94), rgba(8, 12, 18, 0.96));
    box-shadow:
      0 14px 34px rgba(0, 0, 0, 0.24),
      inset 0 1px 0 rgba(255, 255, 255, 0.04);
    font-family: var(--font-mono);
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.11em;
    line-height: 1;
    text-align: left;
    text-transform: uppercase;
    color: var(--text-primary);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-8px) scale(0.96);
    transition:
      opacity 260ms cubic-bezier(0.22, 1, 0.36, 1),
      visibility 260ms cubic-bezier(0.22, 1, 0.36, 1),
      transform 340ms cubic-bezier(0.22, 1, 0.36, 1),
      border-color var(--transition-base);
    pointer-events: none;
  }

  .section-tracker-item:not(.is-active):hover::after,
  .section-tracker-item:not(.is-active):focus-visible::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(0) scale(1);
    border-color: rgba(0, 174, 239, 0.26);
  }

  .section-tracker-text {
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
    max-width: 180px;
    padding: 0.58rem 0.76rem;
    border: 1px solid rgba(0, 174, 239, 0.22);
    border-radius: 999px;
    background:
      linear-gradient(180deg, rgba(20, 30, 42, 0.92), rgba(8, 12, 18, 0.96));
    box-shadow:
      0 16px 38px rgba(0, 0, 0, 0.26),
      0 0 22px rgba(0, 174, 239, 0.08),
      inset 0 1px 0 rgba(255, 255, 255, 0.055);
    font-family: var(--font-mono);
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    line-height: 1;
    text-align: left;
    text-transform: uppercase;
    color: var(--text-primary);
    opacity: 0;
    visibility: hidden;
    white-space: nowrap;
    transform: translateX(-8px) scale(0.96);
    transition:
      opacity 300ms cubic-bezier(0.22, 1, 0.36, 1),
      visibility 300ms cubic-bezier(0.22, 1, 0.36, 1),
      color var(--transition-base),
      transform 360ms cubic-bezier(0.22, 1, 0.36, 1);
  }

  .section-tracker-item.is-active .section-tracker-text {
    opacity: 1;
    visibility: visible;
    transform: translateX(0) scale(1);
  }

  .section-tracker-node {
    grid-column: 1;
    grid-row: 1;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    margin-left: 4px;
    border: 1px solid rgba(0, 174, 239, 0.24);
    border-radius: 999px;
    background:
      radial-gradient(circle at center, rgba(0, 174, 239, 0.08), rgba(8, 12, 18, 0.92) 62%);
    box-shadow:
      inset 0 0 0 6px rgba(8, 12, 18, 0.84),
      0 0 0 1px rgba(0, 174, 239, 0.04);
    transition:
      border-color var(--transition-base),
      background var(--transition-base),
      box-shadow var(--transition-base),
      transform var(--transition-base);
  }

  .section-tracker-node::before {
    content: "";
    position: absolute;
    inset: -7px;
    border-radius: inherit;
    border: 1px solid rgba(0, 174, 239, 0);
    opacity: 0;
    transform: scale(0.74);
    transition:
      opacity var(--transition-base),
      border-color var(--transition-base),
      transform var(--transition-base);
  }

  .section-tracker-node::after {
    content: "";
    width: 5px;
    height: 5px;
    border-radius: 999px;
    background: rgba(178, 188, 205, 0.62);
    transition:
      width var(--transition-base),
      height var(--transition-base),
      background var(--transition-base),
      box-shadow var(--transition-base);
  }

  .section-tracker-item:hover .section-tracker-node,
  .section-tracker-item:focus-visible .section-tracker-node {
    border-color: rgba(0, 174, 239, 0.46);
    background:
      radial-gradient(circle at center, rgba(0, 174, 239, 0.14), rgba(8, 12, 18, 0.92) 64%);
    box-shadow:
      inset 0 0 0 6px rgba(8, 12, 18, 0.78),
      0 0 20px rgba(0, 174, 239, 0.14);
    transform: scale(1.08);
  }

  .section-tracker-item:hover .section-tracker-node::after,
  .section-tracker-item:focus-visible .section-tracker-node::after {
    background: rgba(105, 224, 255, 0.88);
  }

  .section-tracker-item.is-active .section-tracker-node {
    border-color: rgba(0, 174, 239, 0.9);
    background:
      radial-gradient(circle at center, rgba(0, 174, 239, 0.28), rgba(8, 12, 18, 0.86) 66%);
    box-shadow:
      inset 0 0 0 6px rgba(8, 12, 18, 0.78),
      0 0 0 6px rgba(0, 174, 239, 0.1),
      0 0 30px rgba(0, 174, 239, 0.38);
    transform: scale(1.18);
  }

  .section-tracker-item.is-active .section-tracker-node::before {
    border-color: rgba(0, 174, 239, 0.18);
    opacity: 1;
    transform: scale(1);
    animation: section-tracker-pulse 2.8s ease-in-out infinite;
  }

  .section-tracker-item.is-active .section-tracker-node::after {
    width: 7px;
    height: 7px;
    background: var(--cyan);
    box-shadow: 0 0 18px rgba(0, 174, 239, 0.95);
  }

  @keyframes section-tracker-pulse {
    0%,
    100% {
      opacity: 0.55;
      transform: scale(0.92);
    }

    50% {
      opacity: 1;
      transform: scale(1.08);
    }
  }
}

@media (max-width: 1279px), (max-height: 640px), (hover: none), (pointer: coarse) {
  .section-tracker {
    display: none !important;
  }
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ─── SECTION SHARED STYLES ─── */
.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-kicker);
  margin-bottom: var(--space-md);
}

.text-roll { color: var(--roll-red); font-weight: 700; }
.text-pitch { color: var(--pitch-green); font-weight: 700; }
.text-yaw { color: var(--yaw-blue); font-weight: 700; }


.section-kicker.center,
.section-title.center {
  text-align: center;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.15;
  margin-bottom: var(--space-2xl);
}

/* ─── ANIMATION REVEAL SYSTEM ─── */
/* PRODUCT PAGE - MIGRATED INFO SECTIONS */
body.product-page .info-shell {
  width: min(var(--info-max-width), calc(100% - 40px));
  margin: 0 auto;
}

body.product-page .info-section {
  position: relative;
  padding: 6.75rem 0;
}

body.product-page .info-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .info-kicker::before {
  content: "";
  width: 3rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--info-accent));
}

body.product-page .info-section .section-heading {
  display: grid;
  justify-items: center;
  max-width: 980px;
  margin: 0 auto 3rem;
  text-align: center;
}

body.product-page .info-section .section-heading-center {
  text-align: center;
}

body.product-page .info-section .section-title {
  margin: 0 0 1rem;
  font-size: clamp(2.2rem, 4vw, 4.5rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
  font-weight: 800;
  color: var(--info-text);
}

body.product-page .info-section .section-text {
  margin: 0 0 1rem;
  font-size: 1.03rem;
  line-height: 1.8;
  color: var(--info-text-soft);
}

body.product-page .info-section .section-text-wide {
  max-width: 760px;
}

body.product-page .info-section .section-heading .section-title {
  max-width: 20ch;
}

body.product-page .info-section .section-heading .section-text {
  width: min(100%, 980px);
  margin-left: auto;
  margin-right: auto;
  font-size: 1.12rem;
  line-height: 1.86;
}

body.product-page .info-section .section-heading .section-text-wide {
  max-width: 980px;
}

body.product-page .system-section {
  background: linear-gradient(180deg, rgba(8, 12, 18, 0.3), rgba(10, 15, 22, 0.72) 18%, rgba(8, 12, 18, 0.32));
}

body.product-page .system-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}

body.product-page .system-copy {
  display: grid;
  gap: 1rem;
}

body.product-page .system-copy > .section-text,
body.product-page .system-layout > .axis-canvas {
  display: none;
}

body.product-page .system-intro-copy {
  display: grid;
  gap: 1rem;
}

body.product-page .system-axis-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 0.15rem 0 0.1rem;
}

body.product-page .system-axis-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.62rem 0.9rem;
  border: 1px solid rgba(132, 183, 220, 0.16);
  border-radius: 999px;
  background: rgba(13, 20, 29, 0.62);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .system-brief {
  display: grid;
  gap: 1rem;
}

body.product-page .system-brief-item {
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  background: linear-gradient(180deg, rgba(18, 26, 36, 0.7), rgba(10, 15, 22, 0.94));
}

body.product-page .system-brief-item span {
  display: block;
  margin: 0 0 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .system-brief-item p {
  margin: 0;
  line-height: 1.7;
  color: var(--info-text-soft);
}

body.product-page .system-video-shell {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(132, 183, 220, 0.18);
  border-radius: 34px;
  background:
    radial-gradient(circle at top center, rgba(95, 201, 255, 0.1), transparent 32%),
    linear-gradient(180deg, rgba(14, 21, 31, 0.96), rgba(8, 12, 18, 0.98));
  box-shadow: var(--info-shadow);
}

body.product-page .system-video-shell::before {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(132, 183, 220, 0.08);
  border-radius: 24px;
  pointer-events: none;
}

body.product-page .system-video-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid rgba(132, 183, 220, 0.1);
  background: linear-gradient(180deg, rgba(16, 24, 35, 0.82), rgba(10, 15, 22, 0.74));
}

body.product-page .system-video-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .system-video-label::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: var(--info-accent);
  box-shadow: 0 0 16px var(--info-accent);
}

body.product-page .system-video-meta {
  font-size: 0.88rem;
  color: var(--info-text-soft);
}

body.product-page .system-video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  background: #05080d;
}

body.product-page .system-video-shell figcaption {
  padding: 1rem 1.15rem 1.2rem;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--info-text-soft);
  border-top: 1px solid rgba(132, 183, 220, 0.08);
  background: linear-gradient(180deg, rgba(9, 14, 21, 0.72), rgba(7, 11, 16, 0.94));
}

body.product-page .safe-validation-section {
  padding: clamp(3.75rem, 6vw, 5.25rem) 0;
  background:
    radial-gradient(circle at 76% 50%, rgba(0, 174, 239, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(7, 11, 16, 0.2), rgba(10, 15, 22, 0.72) 48%, rgba(7, 11, 16, 0.24));
}

body.product-page .safe-validation-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(340px, 1fr);
  gap: clamp(1.75rem, 4vw, 3.5rem);
  align-items: center;
}

body.product-page .safe-validation-copy {
  display: grid;
  gap: 0.9rem;
  max-width: 540px;
}

body.product-page .safe-validation-copy .section-title {
  max-width: 12ch;
  margin-bottom: 0;
  font-size: clamp(2.1rem, 3.6vw, 3.55rem);
  line-height: 1;
}

body.product-page .safe-validation-copy .section-text {
  max-width: 510px;
  margin-bottom: 0;
  font-size: 1.04rem;
  line-height: 1.72;
}

body.product-page .safe-validation-media {
  position: relative;
  margin: 0;
  padding: 0.65rem;
  overflow: hidden;
  border: 1px solid rgba(132, 183, 220, 0.18);
  border-radius: 30px;
  background:
    linear-gradient(135deg, rgba(95, 201, 255, 0.14), transparent 34%),
    linear-gradient(180deg, rgba(15, 23, 33, 0.92), rgba(5, 8, 13, 0.98));
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

body.product-page .safe-validation-media::before {
  content: "";
  position: absolute;
  inset: 0.65rem;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 22px;
  pointer-events: none;
}

body.product-page .safe-validation-video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 21px;
  background: #05080d;
}

body.product-page .testing-section {
  background: linear-gradient(180deg, rgba(9, 14, 20, 0.52), rgba(8, 12, 18, 0.2));
}

body.product-page .testing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

body.product-page .testing-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.35rem 1.4rem;
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  background: linear-gradient(180deg, rgba(18, 28, 40, 0.82), rgba(10, 15, 23, 0.96));
  transition:
    transform var(--info-transition),
    border-color var(--info-transition),
    box-shadow var(--info-transition);
}

body.product-page .testing-card:hover {
  transform: translateY(-3px);
  border-color: var(--info-border-strong);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.22);
}

body.product-page .testing-card-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.1rem;
  height: 3.1rem;
  border-radius: 999px;
  border: 1px solid var(--info-border-strong);
  background: radial-gradient(circle at center, rgba(95, 201, 255, 0.22), rgba(9, 15, 22, 0.92));
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--info-accent);
  flex-shrink: 0;
}

body.product-page .testing-card-copy h3 {
  margin: 0 0 0.45rem;
  font-size: 1.08rem;
}

body.product-page .testing-card-copy p {
  margin: 0;
  line-height: 1.7;
  color: var(--info-text-soft);
}

body.product-page .audience-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

body.product-page .audience-card {
  padding: 2rem 1.6rem;
  text-align: center;
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  background: linear-gradient(180deg, rgba(18, 27, 38, 0.72), rgba(10, 15, 22, 0.94));
}

body.product-page .audience-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4.6rem;
  height: 4.6rem;
  margin-bottom: 1.2rem;
  border: 1px solid var(--info-border-strong);
  border-radius: 999px;
  background: radial-gradient(circle at center, rgba(95, 201, 255, 0.18), rgba(9, 15, 23, 0.92));
}

body.product-page .audience-icon svg {
  width: 2.2rem;
  height: 2.2rem;
  stroke: var(--info-accent);
  stroke-width: 1.6;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

body.product-page .audience-card h3 {
  margin: 0 0 0.7rem;
  font-size: 1.24rem;
}

body.product-page .audience-card p {
  margin: 0;
  line-height: 1.7;
  color: var(--info-text-soft);
}

@media (max-width: 1100px) {
  body.product-page .system-layout,
  body.product-page .safe-validation-shell {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  body.product-page .testing-grid,
  body.product-page .audience-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  body.product-page .info-shell {
    width: min(var(--info-max-width), calc(100% - 24px));
  }

  body.product-page .info-section {
    padding: 5.25rem 0;
  }

  body.product-page .system-video-head {
    flex-direction: column;
    align-items: flex-start;
  }

  body.product-page .system-video {
    aspect-ratio: 4 / 3;
  }

  body.product-page .safe-validation-section {
    padding: 4rem 0;
  }

  body.product-page .safe-validation-copy .section-title {
    max-width: 14ch;
  }

  body.product-page .safe-validation-media {
    padding: 0.5rem;
    border-radius: 24px;
  }

  body.product-page .safe-validation-media::before {
    inset: 0.5rem;
    border-radius: 18px;
  }

  body.product-page .safe-validation-video {
    aspect-ratio: 4 / 3;
    border-radius: 17px;
  }
}
/* PRODUCT PAGE - MIGRATED GROUP B SECTIONS */
body.product-page .editorial-media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--info-border);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(14, 21, 31, 0.92), rgba(9, 14, 21, 0.96));
  box-shadow: var(--info-shadow);
}

body.product-page .editorial-media img {
  width: 100%;
}

body.product-page .editorial-media figcaption {
  padding: 1rem 1.2rem 1.25rem;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--info-text-soft);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: linear-gradient(180deg, rgba(8, 13, 19, 0.76), rgba(6, 10, 16, 0.94));
}

body.product-page .micro-panel {
  padding: 1.2rem 1.2rem 1.25rem;
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-sm);
  background: linear-gradient(180deg, rgba(18, 28, 39, 0.7), rgba(11, 18, 27, 0.92));
}

body.product-page .micro-panel-title {
  display: block;
  margin-bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .micro-panel p {
  margin: 0;
  line-height: 1.65;
  color: var(--info-text-soft);
}

body.product-page .version-series {
  display: inline-flex;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .step-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.3rem 1.35rem;
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  background: linear-gradient(180deg, rgba(18, 26, 36, 0.7), rgba(10, 15, 22, 0.94));
}

body.product-page .step-note h3 {
  margin: 0 0 0.7rem;
  font-size: 1.04rem;
  font-weight: 700;
  color: var(--info-text);
}

body.product-page .step-note p {
  margin: 0;
  line-height: 1.7;
  color: var(--info-text-soft);
}

body.product-page .step-note-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.1rem;
  height: 3.1rem;
  border-radius: 999px;
  border: 1px solid var(--info-border-strong);
  background: radial-gradient(circle at center, rgba(95, 201, 255, 0.22), rgba(9, 15, 22, 0.92));
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--info-accent);
  flex-shrink: 0;
}

body.product-page .version-order {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.5rem;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  background: rgba(95, 201, 255, 0.12);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .axis-order-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding: 1.1rem 1.2rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  background: linear-gradient(180deg, rgba(17, 27, 39, 0.72), rgba(9, 15, 22, 0.94));
}

body.product-page .axis-order-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

body.product-page .axis-order-chip {
  display: inline-flex;
  padding: 0.5rem 0.82rem;
  border-radius: 999px;
  border: 1px solid var(--info-border);
  background: rgba(255, 255, 255, 0.03);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--info-accent);
}

body.product-page .axis-order-strip p {
  margin: 0;
  max-width: 680px;
  color: var(--info-text-soft);
  line-height: 1.7;
}

body.product-page .versions-intro-shell {
  display: grid;
  gap: 1.15rem;
  margin-bottom: 1.4rem;
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--info-border);
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(95, 201, 255, 0.08), transparent 38%),
    linear-gradient(180deg, rgba(17, 25, 35, 0.82), rgba(9, 15, 22, 0.95));
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.2);
}

body.product-page .versions-lead {
  margin: 0;
  max-width: 72ch;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--info-text-soft);
}

body.product-page .versions-quick-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

body.product-page .versions-quick-item {
  display: grid;
  gap: 0.5rem;
  padding: 1rem 1.05rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.025);
}

body.product-page .versions-quick-item span,
body.product-page .version-note-label,
body.product-page .version-tech-toggle-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .versions-quick-item p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.62;
  color: var(--info-text-soft);
}

body.product-page .versions-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.3rem;
}

body.product-page .version-card {
  display: grid;
  gap: 1rem;
  padding: 1.2rem;
  border: 1px solid var(--info-border);
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(95, 201, 255, 0.06), transparent 32%),
    linear-gradient(180deg, rgba(17, 25, 35, 0.84), rgba(9, 15, 22, 0.96));
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
}

body.product-page .version-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

body.product-page .version-card img {
  width: 100%;
  border-radius: 18px;
}

body.product-page .version-visual-stack {
  position: relative;
  display: grid;
  gap: 0;
  justify-items: center;
  width: min(100%, 360px);
  margin: 0 auto;
}

body.product-page .version-figure {
  margin: 0;
  padding: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 22px;
  background:
    radial-gradient(circle at top, rgba(95, 201, 255, 0.06), transparent 48%),
    rgba(255, 255, 255, 0.02);
}

body.product-page .version-figure.version-figure-diagram {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border-color: rgba(112, 218, 255, 0.12);
  background:
    radial-gradient(circle at top, rgba(95, 201, 255, 0.08), transparent 52%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 16px 36px rgba(0, 0, 0, 0.12);
}

body.product-page .version-summary {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--info-text-soft);
}

body.product-page .version-diagram {
  display: block;
  max-width: min(100%, 340px);
  margin: 0 auto;
  padding: 0;
  background: transparent;
}

body.product-page .version-card-info {
  width: 100%;
}

body.product-page .version-systems-info-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

body.product-page .version-notes {
  display: grid;
  gap: 0.8rem;
  width: 100%;
  max-height: 0;
  margin-top: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition:
    max-height 560ms cubic-bezier(0.22, 1, 0.36, 1),
    margin-top 420ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 300ms ease,
    transform 520ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.product-page .version-systems-info-toggle:checked ~ .versions-grid .version-notes {
  max-height: 420px;
  margin-top: 0.85rem;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

body.product-page .version-note {
  display: grid;
  gap: 0.55rem;
  padding: 0.95rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.025);
}

body.product-page .version-note p {
  margin: 0;
  font-size: 0.83rem;
  line-height: 1.62;
  color: var(--info-text-soft);
}

body.product-page .version-note-accent {
  background: linear-gradient(180deg, rgba(76, 181, 255, 0.08), rgba(255, 255, 255, 0.018));
  border-color: rgba(76, 181, 255, 0.14);
}

body.product-page .axis-token {
  font-weight: 850;
  white-space: nowrap;
}

body.product-page .axis-roll {
  color: #ff5a66;
  text-shadow: 0 0 16px rgba(255, 90, 102, 0.18);
}

body.product-page .axis-pitch {
  color: #55df82;
  text-shadow: 0 0 16px rgba(85, 223, 130, 0.16);
}

body.product-page .axis-yaw {
  color: #58a8ff;
  text-shadow: 0 0 16px rgba(88, 168, 255, 0.18);
}

body.product-page .axis-arrow {
  margin: 0 0.14rem;
  color: rgba(198, 213, 229, 0.72);
}

body.product-page .table-card {
  margin-top: 1.5rem;
  padding: 1.2rem;
  border: 1px solid var(--info-border);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(17, 25, 35, 0.84), rgba(9, 15, 22, 0.97));
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
}

body.product-page .table-card-head {
  max-width: 680px;
  margin-bottom: 1rem;
}

body.product-page .table-card-head h3 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

body.product-page .table-card-head p {
  margin: 0;
  line-height: 1.65;
  color: var(--info-text-soft);
}

body.product-page .version-tech-details {
  position: relative;
  margin-top: 0.75rem;
  overflow: hidden;
  padding: 0;
  border-color: rgba(96, 205, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(11, 17, 24, 0.98), rgba(8, 12, 18, 0.98));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 22px 54px rgba(0, 0, 0, 0.24);
}

body.product-page .version-tech-details::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: 27px;
  background:
    linear-gradient(135deg, rgba(92, 206, 255, 0.05), transparent 24%, transparent 72%, rgba(92, 206, 255, 0.025)),
    repeating-linear-gradient(120deg, rgba(255, 255, 255, 0.018) 0 2px, transparent 2px 42px);
  opacity: 0.72;
  pointer-events: none;
}

body.product-page .version-tech-details > summary {
  list-style: none;
  position: relative;
  display: grid;
  gap: 0.4rem;
  padding: 1.1rem 1.2rem 1.08rem;
  cursor: pointer;
  background:
    linear-gradient(180deg, rgba(12, 18, 26, 0.96), rgba(9, 13, 20, 0.98)),
    radial-gradient(circle at top right, rgba(92, 206, 255, 0.08), transparent 42%);
  transition:
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    background 320ms ease,
    box-shadow 320ms ease;
}

body.product-page .version-tech-details > summary::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(115, 220, 255, 0.8), rgba(115, 220, 255, 0));
  opacity: 0.92;
}

body.product-page .version-tech-details > summary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 16%, rgba(115, 220, 255, 0.12), transparent 20%);
  opacity: 0.78;
  pointer-events: none;
}

body.product-page .version-tech-details:not([open]):not(.is-opening) > summary:hover {
  transform: translateY(-1px);
}

body.product-page .version-tech-details[open],
body.product-page .version-tech-details.is-opening {
  border-color: rgba(112, 218, 255, 0.16);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 28px 66px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(92, 206, 255, 0.035);
}

body.product-page .version-tech-details > summary::-webkit-details-marker {
  display: none;
}

body.product-page .version-tech-toggle-copy {
  font-size: 0.82rem;
  line-height: 1.62;
  color: var(--info-text-soft);
}

body.product-page .version-tech-toggle-label-open {
  display: none;
}

body.product-page .version-tech-details[open] .version-tech-toggle-label-closed {
  display: none;
}

body.product-page .version-tech-details[open] .version-tech-toggle-label-open {
  display: inline;
}

body.product-page .version-tech-panel {
  opacity: 0;
  padding: 0 1.2rem 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  transform: translateY(-14px) scale(0.985);
  filter: blur(8px);
  transform-origin: top center;
  will-change: opacity, transform, filter;
  transition:
    opacity 360ms ease,
    transform 560ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.product-page .version-tech-details[open] .version-tech-panel,
body.product-page .version-tech-details.is-opening .version-tech-panel {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

body.product-page .version-tech-details.is-closing .version-tech-panel {
  opacity: 0;
  transform: translateY(-10px) scale(0.985);
  filter: blur(10px);
}

body.product-page .version-tech-details.is-animating {
  transition: height 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.product-page .info-table-wrap {
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 18px;
}

body.product-page .info-table {
  width: 100%;
  min-width: 720px;
  border-collapse: separate;
  border-spacing: 0;
  background: rgba(5, 9, 14, 0.72);
}

body.product-page .info-table th,
body.product-page .info-table td {
  padding: 1rem 1rem;
  border-right: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  vertical-align: top;
}

body.product-page .info-table th {
  background: rgba(8, 13, 19, 0.94);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--info-text-soft);
}

body.product-page .info-table td {
  color: var(--info-text-soft);
  line-height: 1.65;
}

body.product-page .info-table th:first-child,
body.product-page .info-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background: rgba(10, 15, 22, 0.97);
  color: var(--info-text);
}

body.product-page .info-table th:first-child {
  z-index: 2;
}

body.product-page .info-table tr:last-child td {
  border-bottom: 0;
}

body.product-page .info-table th:last-child,
body.product-page .info-table td:last-child {
  border-right: 0;
}

body.product-page .sizes-copy,
body.product-page .material-copy {
  display: grid;
  gap: 1rem;
}

body.product-page .sizes-tech-toggle-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .sizes-stage {
  display: grid;
  gap: clamp(1.35rem, 2.8vw, 2.2rem);
  align-items: stretch;
}

body.product-page .sizes-primary-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  gap: clamp(1.2rem, 2.6vw, 2rem);
  align-items: stretch;
}

body.product-page .sizes-steps-column {
  display: grid;
  gap: 0.95rem;
  align-content: start;
}

body.product-page .size-step-note {
  padding: 1.1rem 1.15rem;
  gap: 0.9rem;
}

body.product-page .size-step-note h3 {
  margin-bottom: 0.45rem;
  font-size: 0.98rem;
}

body.product-page .size-step-note p {
  font-size: 0.92rem;
  line-height: 1.68;
}

body.product-page .size-step-note .step-note-index {
  width: 2.7rem;
  height: 2.7rem;
  font-size: 0.8rem;
}

body.product-page .sizing-diagram-feature,
body.product-page .sizes-lineup-card {
  transition:
    transform 360ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 320ms ease,
    box-shadow 360ms ease;
}

body.product-page .sizing-diagram-feature:hover,
body.product-page .sizes-lineup-card:hover {
  transform: translateY(-2px);
  border-color: rgba(112, 218, 255, 0.14);
  box-shadow: 0 26px 68px rgba(0, 0, 0, 0.24);
}

body.product-page .sizing-diagram-feature img {
  aspect-ratio: 16 / 9.2;
  object-fit: contain;
  background:
    radial-gradient(circle at 50% 22%, rgba(95, 201, 255, 0.12), transparent 44%),
    rgba(7, 11, 16, 0.72);
  padding: 1.6rem;
}

body.product-page .sizing-diagram-feature figcaption {
  padding: 0.95rem 1.15rem 1.05rem;
}

body.product-page .sizes-lineup-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.3rem, 3vw, 2.2rem);
  align-items: stretch;
  width: min(100%, 1120px);
  margin: 0 auto;
}

body.product-page .sizes-lineup-card img {
  aspect-ratio: 16 / 9.2;
  object-fit: contain;
  background: rgba(7, 11, 16, 0.72);
  padding: 1.15rem;
}

body.product-page .sizes-lineup-card figcaption {
  padding: 1rem 1.15rem 1.12rem;
}

body.product-page .sizes-tech-details {
  position: relative;
  margin-top: 0.2rem;
  overflow: hidden;
  padding: 0;
  border-color: rgba(96, 205, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(11, 17, 24, 0.98), rgba(8, 12, 18, 0.98));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 22px 54px rgba(0, 0, 0, 0.24);
}

body.product-page .sizes-tech-details::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: 27px;
  background:
    linear-gradient(135deg, rgba(92, 206, 255, 0.05), transparent 24%, transparent 72%, rgba(92, 206, 255, 0.025)),
    repeating-linear-gradient(120deg, rgba(255, 255, 255, 0.018) 0 2px, transparent 2px 42px);
  opacity: 0.72;
  pointer-events: none;
}

body.product-page .sizes-tech-details > summary {
  list-style: none;
  position: relative;
  display: grid;
  gap: 0.4rem;
  padding: 1.1rem 1.2rem 1.08rem;
  cursor: pointer;
  background:
    linear-gradient(180deg, rgba(12, 18, 26, 0.96), rgba(9, 13, 20, 0.98)),
    radial-gradient(circle at top right, rgba(92, 206, 255, 0.08), transparent 42%);
  transition:
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    background 320ms ease,
    box-shadow 320ms ease;
}

body.product-page .sizes-tech-details > summary::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(115, 220, 255, 0.8), rgba(115, 220, 255, 0));
  opacity: 0.92;
}

body.product-page .sizes-tech-details > summary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 16%, rgba(115, 220, 255, 0.12), transparent 20%);
  opacity: 0.78;
  pointer-events: none;
}

body.product-page .sizes-tech-details:not([open]):not(.is-opening) > summary:hover {
  transform: translateY(-1px);
}

body.product-page .sizes-tech-details[open],
body.product-page .sizes-tech-details.is-opening {
  border-color: rgba(112, 218, 255, 0.16);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 28px 66px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(92, 206, 255, 0.035);
}

body.product-page .sizes-tech-details > summary::-webkit-details-marker {
  display: none;
}

body.product-page .sizes-tech-toggle-copy {
  font-size: 0.82rem;
  line-height: 1.62;
  color: var(--info-text-soft);
}

body.product-page .sizes-tech-toggle-label-open {
  display: none;
}

body.product-page .sizes-tech-details[open] .sizes-tech-toggle-label-closed {
  display: none;
}

body.product-page .sizes-tech-details[open] .sizes-tech-toggle-label-open {
  display: inline;
}

body.product-page .sizes-tech-panel {
  opacity: 0;
  padding: 0 1.2rem 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  transform: translateY(-14px) scale(0.985);
  filter: blur(8px);
  transform-origin: top center;
  will-change: opacity, transform, filter;
  transition:
    opacity 360ms ease,
    transform 560ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.product-page .sizes-tech-details[open] .sizes-tech-panel,
body.product-page .sizes-tech-details.is-opening .sizes-tech-panel {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

body.product-page .sizes-tech-details.is-closing .sizes-tech-panel {
  opacity: 0;
  transform: translateY(-10px) scale(0.985);
  filter: blur(10px);
}

body.product-page .sizes-tech-details.is-animating {
  transition: height 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.product-page .materials-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  align-items: stretch;
}

body.product-page .material-panel {
  display: grid;
  gap: 1rem;
  padding: 1.05rem;
  border: 1px solid var(--info-border);
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(95, 201, 255, 0.07), transparent 40%),
    linear-gradient(180deg, rgba(17, 26, 37, 0.84), rgba(9, 15, 22, 0.96));
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
  transition:
    transform 360ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 320ms ease,
    box-shadow 360ms ease;
}

body.product-page .material-panel:hover {
  transform: translateY(-2px);
  border-color: rgba(112, 218, 255, 0.14);
  box-shadow: 0 28px 78px rgba(0, 0, 0, 0.28);
}

body.product-page .material-media {
  margin: 0;
}

body.product-page .material-media img {
  aspect-ratio: 16 / 9.3;
  object-fit: contain;
  background:
    radial-gradient(circle at 50% 24%, rgba(95, 201, 255, 0.12), transparent 42%),
    rgba(7, 11, 16, 0.72);
  padding: 1.35rem;
}

body.product-page .material-media figcaption {
  padding: 0.95rem 1rem 1rem;
  font-size: 0.88rem;
}

body.product-page .material-copy {
  display: grid;
  gap: 0.95rem;
}

body.product-page .material-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.7rem 1rem;
}

body.product-page .material-copy h3 {
  margin: 0;
  font-size: 1.12rem;
}

body.product-page .material-emphasis,
body.product-page .material-note-label,
body.product-page .materials-tech-toggle-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .material-emphasis {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(112, 218, 255, 0.12);
  background: rgba(95, 201, 255, 0.08);
}

body.product-page .material-copy p,
body.product-page .material-summary {
  margin: 0;
  line-height: 1.7;
  color: var(--info-text-soft);
}

body.product-page .material-summary {
  font-size: 0.98rem;
}

body.product-page .material-note-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

body.product-page .material-note {
  display: grid;
  gap: 0.5rem;
  min-height: 100%;
  padding: 0.95rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.025);
}

body.product-page .material-note p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--info-text-soft);
}

body.product-page .material-note-accent {
  grid-column: 1 / -1;
  background: linear-gradient(180deg, rgba(76, 181, 255, 0.08), rgba(255, 255, 255, 0.018));
  border-color: rgba(76, 181, 255, 0.14);
}

body.product-page .materials-tech-details {
  position: relative;
  margin-top: 1.35rem;
  overflow: hidden;
  padding: 0;
  border-color: rgba(96, 205, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(11, 17, 24, 0.98), rgba(8, 12, 18, 0.98));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 22px 54px rgba(0, 0, 0, 0.24);
}

body.product-page .materials-tech-details::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: 27px;
  background:
    linear-gradient(135deg, rgba(92, 206, 255, 0.05), transparent 24%, transparent 72%, rgba(92, 206, 255, 0.025)),
    repeating-linear-gradient(120deg, rgba(255, 255, 255, 0.018) 0 2px, transparent 2px 42px);
  opacity: 0.72;
  pointer-events: none;
}

body.product-page .materials-tech-details > summary {
  list-style: none;
  position: relative;
  display: grid;
  gap: 0.4rem;
  padding: 1.1rem 1.2rem 1.08rem;
  cursor: pointer;
  background:
    linear-gradient(180deg, rgba(12, 18, 26, 0.96), rgba(9, 13, 20, 0.98)),
    radial-gradient(circle at top right, rgba(92, 206, 255, 0.08), transparent 42%);
  transition:
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    background 320ms ease,
    box-shadow 320ms ease;
}

body.product-page .materials-tech-details > summary::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(115, 220, 255, 0.8), rgba(115, 220, 255, 0));
  opacity: 0.92;
}

body.product-page .materials-tech-details > summary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 16%, rgba(115, 220, 255, 0.12), transparent 20%);
  opacity: 0.78;
  pointer-events: none;
}

body.product-page .materials-tech-details:not([open]):not(.is-opening) > summary:hover {
  transform: translateY(-1px);
}

body.product-page .materials-tech-details[open],
body.product-page .materials-tech-details.is-opening {
  border-color: rgba(112, 218, 255, 0.16);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 28px 66px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(92, 206, 255, 0.035);
}

body.product-page .materials-tech-details > summary::-webkit-details-marker {
  display: none;
}

body.product-page .materials-tech-toggle-copy {
  font-size: 0.82rem;
  line-height: 1.62;
  color: var(--info-text-soft);
}

body.product-page .materials-tech-toggle-label-open {
  display: none;
}

body.product-page .materials-tech-details[open] .materials-tech-toggle-label-closed {
  display: none;
}

body.product-page .materials-tech-details[open] .materials-tech-toggle-label-open {
  display: inline;
}

body.product-page .materials-tech-panel {
  opacity: 0;
  padding: 0 1.2rem 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  transform: translateY(-14px) scale(0.985);
  filter: blur(8px);
  transform-origin: top center;
  will-change: opacity, transform, filter;
  transition:
    opacity 360ms ease,
    transform 560ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.product-page .materials-tech-details[open] .materials-tech-panel,
body.product-page .materials-tech-details.is-opening .materials-tech-panel {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

body.product-page .materials-tech-details.is-closing .materials-tech-panel {
  opacity: 0;
  transform: translateY(-10px) scale(0.985);
  filter: blur(10px);
}

body.product-page .materials-tech-details.is-animating {
  transition: height 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

@media (max-width: 1100px) {
  body.product-page .versions-quick-grid,
  body.product-page .materials-grid {
    grid-template-columns: 1fr;
  }

  body.product-page .sizes-primary-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  body.product-page .versions-grid,
  body.product-page .sizes-lineup-grid {
    grid-template-columns: 1fr;
  }

  body.product-page .material-note-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  body.product-page .table-card,
  body.product-page .material-panel {
    padding: 1rem;
  }

  body.product-page .versions-intro-shell,
  body.product-page .version-card {
    padding: 1rem;
  }

  body.product-page .version-tech-details > summary,
  body.product-page .version-tech-panel,
  body.product-page .sizes-tech-details > summary,
  body.product-page .sizes-tech-panel,
  body.product-page .materials-tech-details > summary,
  body.product-page .materials-tech-panel {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  body.product-page .size-step-note {
    padding: 1rem;
  }

  body.product-page .size-step-note .step-note-index {
    width: 2.45rem;
    height: 2.45rem;
  }

  body.product-page .sizing-diagram-feature img,
  body.product-page .sizes-lineup-card img,
  body.product-page .material-media img {
    padding: 1rem;
  }
}
/* PRODUCT PAGE - MIGRATED GROUP C SECTIONS */
body.product-page .story-card,
body.product-page .ecosystem-card {
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  background: linear-gradient(180deg, rgba(18, 26, 36, 0.7), rgba(10, 15, 22, 0.94));
}

body.product-page .story-card {
  padding: 1.45rem 1.5rem;
}

body.product-page .story-card h3,
body.product-page .ecosystem-card h3 {
  margin: 0 0 0.7rem;
  font-size: 1.04rem;
  font-weight: 700;
  color: var(--info-text);
}

body.product-page .story-card p,
body.product-page .ecosystem-card p {
  margin: 0;
  line-height: 1.7;
  color: var(--info-text-soft);
}

body.product-page .ecosystem-grid,
body.product-page .addons-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}

body.product-page .ecosystem-copy,
body.product-page .ecosystem-visuals,
body.product-page .addons-copy {
  display: grid;
  gap: 1rem;
  align-content: start;
}

body.product-page .ecosystem-grid {
  width: min(100%, 1180px);
  margin: 0 auto;
}

body.product-page .ecosystem-visuals {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.2rem, 2.6vw, 2rem);
  align-items: stretch;
}

body.product-page .ecosystem-media {
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100%;
}

body.product-page .ecosystem-card {
  padding: 1.35rem 1.4rem;
}

body.product-page .ecosystem-card-wide {
  min-height: auto;
}

body.product-page .size-btn.locked-calculator {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
  filter: grayscale(1) blur(0.5px);
  transition: opacity 0.4s ease, filter 0.4s ease;
}

body.product-page .ecosystem-card-label {
  display: inline-flex;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .ecosystem-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1rem;
}

body.product-page .ecosystem-tags span {
  padding: 0.45rem 0.72rem;
  border-radius: 999px;
  border: 1px solid var(--info-border);
  background: rgba(255, 255, 255, 0.03);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--info-text-soft);
}

body.product-page .ecosystem-media img {
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: rgba(6, 10, 16, 0.76);
  padding: 1rem;
}

body.product-page .ecosystem-media-main img {
  aspect-ratio: 16 / 11;
}

body.product-page .addons-stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: center;
  justify-items: center;
  width: min(100%, 980px);
  margin: 0 auto;
}

body.product-page .addon-main-media-feature {
  width: min(100%, 980px);
  margin: 0 auto;
  border-color: rgba(112, 218, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(12, 18, 27, 0.96), rgba(7, 12, 18, 0.98)),
    radial-gradient(circle at 18% 18%, rgba(95, 201, 255, 0.08), transparent 26%),
    radial-gradient(circle at 82% 20%, rgba(95, 201, 255, 0.06), transparent 24%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 30px 82px rgba(0, 0, 0, 0.28);
  isolation: isolate;
  transition:
    transform 360ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 320ms ease,
    box-shadow 360ms ease;
}

body.product-page .addon-main-media-feature::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 24%),
    radial-gradient(circle at 50% 0%, rgba(95, 201, 255, 0.12), transparent 34%);
  pointer-events: none;
  z-index: 0;
}

body.product-page .addon-main-media-feature:hover {
  transform: translateY(-2px);
  border-color: rgba(112, 218, 255, 0.2);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 34px 90px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(92, 206, 255, 0.04);
}

body.product-page .addon-main-media-feature img,
body.product-page .addon-main-media-video {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9.5;
  object-fit: cover;
  background:
    radial-gradient(circle at 50% 24%, rgba(95, 201, 255, 0.06), transparent 42%),
    rgba(6, 10, 16, 0.92);
}

body.product-page .addon-main-media-feature figcaption {
  position: relative;
  z-index: 1;
  padding: 1rem 1.25rem 1.08rem;
  text-align: center;
  color: rgba(221, 237, 246, 0.8);
}

body.product-page .addons-stage-copy {
  display: grid;
  gap: 1rem;
  align-content: start;
}

body.product-page .addons-intro-card {
  display: grid;
  gap: 0.95rem;
  padding: 1.3rem 1.35rem;
  border: 1px solid var(--info-border);
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(95, 201, 255, 0.08), transparent 38%),
    linear-gradient(180deg, rgba(17, 25, 35, 0.82), rgba(9, 15, 22, 0.95));
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.2);
}

body.product-page .addons-intro-card h3 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.36;
  color: var(--info-text);
}

body.product-page .addons-intro-card p,
body.product-page .addons-tech-toggle-copy,
body.product-page .addons-quick-item p {
  margin: 0;
  line-height: 1.68;
  color: var(--info-text-soft);
}

body.product-page .addons-flow-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

body.product-page .addons-flow-chip,
body.product-page .addons-quick-label,
body.product-page .addons-tech-toggle-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--info-accent);
}

body.product-page .addons-flow-chip {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.45rem 0.78rem;
  border-radius: 999px;
  border: 1px solid rgba(112, 218, 255, 0.12);
  background: rgba(95, 201, 255, 0.08);
}

body.product-page .addons-flow-arrow {
  color: rgba(123, 214, 255, 0.8);
  font-size: 1rem;
}

body.product-page .addons-quick-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

body.product-page .addons-quick-item {
  display: grid;
  gap: 0.5rem;
  min-height: 100%;
  padding: 0.95rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.025);
}

body.product-page .addons-quick-item-accent {
  grid-column: 1 / -1;
  background: linear-gradient(180deg, rgba(76, 181, 255, 0.08), rgba(255, 255, 255, 0.018));
  border-color: rgba(76, 181, 255, 0.14);
}

body.product-page .addons-tech-stack {
  display: grid;
  gap: 1rem;
  margin-top: 1.35rem;
}

body.product-page .addons-tech-details {
  position: relative;
  overflow: hidden;
  padding: 0;
  border-color: rgba(96, 205, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(11, 17, 24, 0.98), rgba(8, 12, 18, 0.98));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 22px 54px rgba(0, 0, 0, 0.24);
}

body.product-page .addons-tech-details::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: 27px;
  background:
    linear-gradient(135deg, rgba(92, 206, 255, 0.05), transparent 24%, transparent 72%, rgba(92, 206, 255, 0.025)),
    repeating-linear-gradient(120deg, rgba(255, 255, 255, 0.018) 0 2px, transparent 2px 42px);
  opacity: 0.72;
  pointer-events: none;
}

body.product-page .addons-tech-details > summary {
  list-style: none;
  position: relative;
  display: grid;
  gap: 0.4rem;
  padding: 1.1rem 1.2rem 1.08rem;
  cursor: pointer;
  background:
    linear-gradient(180deg, rgba(12, 18, 26, 0.96), rgba(9, 13, 20, 0.98)),
    radial-gradient(circle at top right, rgba(92, 206, 255, 0.08), transparent 42%);
  transition:
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    background 320ms ease,
    box-shadow 320ms ease;
}

body.product-page .addons-tech-details > summary::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(115, 220, 255, 0.8), rgba(115, 220, 255, 0));
  opacity: 0.92;
}

body.product-page .addons-tech-details > summary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 16%, rgba(115, 220, 255, 0.12), transparent 20%);
  opacity: 0.78;
  pointer-events: none;
}

body.product-page .addons-tech-details:not([open]):not(.is-opening) > summary:hover {
  transform: translateY(-1px);
}

body.product-page .addons-tech-details[open],
body.product-page .addons-tech-details.is-opening {
  border-color: rgba(112, 218, 255, 0.16);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 28px 66px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(92, 206, 255, 0.035);
}

body.product-page .addons-tech-details > summary::-webkit-details-marker {
  display: none;
}

body.product-page .addons-tech-toggle-label-open {
  display: none;
}

body.product-page .addons-tech-details[open] .addons-tech-toggle-label-closed {
  display: none;
}

body.product-page .addons-tech-details[open] .addons-tech-toggle-label-open {
  display: inline;
}

body.product-page .addons-tech-panel {
  opacity: 0;
  padding: 0 1.2rem 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  transform: translateY(-14px) scale(0.985);
  filter: blur(8px);
  transform-origin: top center;
  will-change: opacity, transform, filter;
  transition:
    opacity 360ms ease,
    transform 560ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.product-page .addons-tech-details[open] .addons-tech-panel,
body.product-page .addons-tech-details.is-opening .addons-tech-panel {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

body.product-page .addons-tech-details.is-closing .addons-tech-panel {
  opacity: 0;
  transform: translateY(-10px) scale(0.985);
  filter: blur(10px);
}

body.product-page .addons-tech-details.is-animating {
  transition: height 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* PRODUCT PAGE - COMPACT TECH TRIGGERS */
body.product-page .version-tech-details,
body.product-page .sizes-tech-details {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  box-shadow: none;
  overflow: visible;
}

body.product-page .version-tech-details {
  margin-top: 0.85rem;
}

body.product-page .sizes-tech-details {
  margin-top: 0.3rem;
}

body.product-page .addons-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-start;
}

body.product-page .addons-tech-details {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  flex: 0 0 auto;
  width: auto;
  min-width: 0;
  margin-top: 0;
  padding: 0;
  border: 0;
  background: none;
  box-shadow: none;
  overflow: visible;
}

body.product-page .addons-tech-details[open],
body.product-page .addons-tech-details.is-opening,
body.product-page .addons-tech-details.is-closing,
body.product-page .addons-tech-details.is-animating {
  flex-basis: 100%;
}

body.product-page .version-tech-details[open],
body.product-page .version-tech-details.is-opening,
body.product-page .version-tech-details.is-closing,
body.product-page .sizes-tech-details[open],
body.product-page .sizes-tech-details.is-opening,
body.product-page .sizes-tech-details.is-closing,
body.product-page .addons-tech-details[open],
body.product-page .addons-tech-details.is-opening,
body.product-page .addons-tech-details.is-closing {
  border: 0;
  background: none;
  box-shadow: none;
}

body.product-page .version-tech-details::before,
body.product-page .sizes-tech-details::before,
body.product-page .addons-tech-details::before {
  content: none;
}

body.product-page .version-tech-details > summary,
body.product-page .sizes-tech-details > summary,
body.product-page .addons-tech-details > summary {
  list-style: none;
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 0.68rem;
  min-height: 2.4rem;
  max-width: 100%;
  padding: 0.68rem 1rem;
  border: 1px solid rgba(96, 205, 255, 0.16);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(14, 20, 29, 0.94), rgba(8, 12, 18, 0.96)),
    radial-gradient(circle at top right, rgba(92, 206, 255, 0.12), transparent 58%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 12px 28px rgba(0, 0, 0, 0.18);
  cursor: pointer;
  transition:
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 320ms ease,
    box-shadow 320ms ease,
    background 320ms ease;
}

body.product-page .version-tech-details > summary::before,
body.product-page .sizes-tech-details > summary::before,
body.product-page .addons-tech-details > summary::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background:
    linear-gradient(135deg, rgba(115, 220, 255, 0.08), transparent 36%, transparent 74%, rgba(115, 220, 255, 0.04));
  opacity: 0.7;
  pointer-events: none;
}

body.product-page .version-tech-details > summary::after,
body.product-page .sizes-tech-details > summary::after,
body.product-page .addons-tech-details > summary::after {
  content: "";
  position: relative;
  inset: auto;
  width: 0.48rem;
  height: 0.48rem;
  margin-left: 0.02rem;
  border-right: 1.5px solid rgba(151, 229, 255, 0.82);
  border-bottom: 1.5px solid rgba(151, 229, 255, 0.82);
  background: none;
  opacity: 1;
  transform: rotate(45deg) translateY(-1px);
  transform-origin: center;
  pointer-events: none;
  transition:
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 320ms ease;
}

body.product-page .version-tech-details:not([open]):not(.is-opening) > summary:hover,
body.product-page .sizes-tech-details:not([open]):not(.is-opening) > summary:hover,
body.product-page .addons-tech-details:not([open]):not(.is-opening) > summary:hover {
  transform: translateY(-1px);
  border-color: rgba(112, 218, 255, 0.24);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 16px 32px rgba(0, 0, 0, 0.22),
    0 0 0 1px rgba(92, 206, 255, 0.04);
}

body.product-page .version-tech-details[open] > summary,
body.product-page .version-tech-details.is-opening > summary,
body.product-page .sizes-tech-details[open] > summary,
body.product-page .sizes-tech-details.is-opening > summary,
body.product-page .addons-tech-details[open] > summary,
body.product-page .addons-tech-details.is-opening > summary {
  transform: translateY(-1px);
  border-color: rgba(112, 218, 255, 0.3);
  background:
    linear-gradient(180deg, rgba(16, 24, 34, 0.96), rgba(10, 14, 20, 0.98)),
    radial-gradient(circle at top right, rgba(92, 206, 255, 0.16), transparent 56%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 18px 38px rgba(0, 0, 0, 0.24),
    0 0 0 1px rgba(92, 206, 255, 0.05),
    0 0 18px rgba(92, 206, 255, 0.09);
}

body.product-page .version-tech-details[open] > summary::after,
body.product-page .version-tech-details.is-opening > summary::after,
body.product-page .sizes-tech-details[open] > summary::after,
body.product-page .sizes-tech-details.is-opening > summary::after,
body.product-page .addons-tech-details[open] > summary::after,
body.product-page .addons-tech-details.is-opening > summary::after {
  transform: rotate(-135deg) translateY(1px);
  border-color: rgba(175, 238, 255, 0.9);
}

body.product-page .version-tech-details > summary::-webkit-details-marker,
body.product-page .sizes-tech-details > summary::-webkit-details-marker,
body.product-page .addons-tech-details > summary::-webkit-details-marker {
  display: none;
}

body.product-page .version-tech-details > summary .version-tech-toggle-label,
body.product-page .sizes-tech-details > summary .sizes-tech-toggle-label,
body.product-page .addons-tech-details > summary .addons-tech-toggle-label {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: none;
  color: var(--info-text);
  white-space: nowrap;
}

body.product-page .version-tech-panel,
body.product-page .sizes-tech-panel,
body.product-page .addons-tech-panel {
  width: 100%;
  margin: 0;
  padding: 1rem 1.2rem 1.2rem;
  border: 1px solid rgba(96, 205, 255, 0.12);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(11, 17, 24, 0.97), rgba(8, 12, 18, 0.98)),
    radial-gradient(circle at top right, rgba(92, 206, 255, 0.06), transparent 42%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 22px 54px rgba(0, 0, 0, 0.22);
  border-top: 1px solid rgba(96, 205, 255, 0.12);
  opacity: 0;
  transform: translateY(-10px) scale(0.992);
  filter: blur(8px);
  transform-origin: top center;
  will-change: opacity, transform, filter;
  transition:
    opacity 360ms ease,
    transform 560ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.product-page .version-tech-details[open] .version-tech-panel,
body.product-page .version-tech-details.is-opening .version-tech-panel,
body.product-page .sizes-tech-details[open] .sizes-tech-panel,
body.product-page .sizes-tech-details.is-opening .sizes-tech-panel,
body.product-page .addons-tech-details[open] .addons-tech-panel,
body.product-page .addons-tech-details.is-opening .addons-tech-panel {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

body.product-page .version-tech-details.is-closing .version-tech-panel,
body.product-page .sizes-tech-details.is-closing .sizes-tech-panel,
body.product-page .addons-tech-details.is-closing .addons-tech-panel {
  opacity: 0;
  transform: translateY(-8px) scale(0.99);
  filter: blur(10px);
}

body.product-page .version-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: 0.85rem;
}

body.product-page .version-actions .version-tech-details {
  flex: 1 1 20rem;
  width: auto;
  min-width: min(100%, 18rem);
  margin-top: 0;
}

body.product-page .version-systems-info-control {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 0.68rem;
  min-height: 2.4rem;
  max-width: 100%;
  padding: 0.68rem 1rem;
  border: 1px solid rgba(96, 205, 255, 0.16);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(14, 20, 29, 0.94), rgba(8, 12, 18, 0.96)),
    radial-gradient(circle at top right, rgba(92, 206, 255, 0.12), transparent 58%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 12px 28px rgba(0, 0, 0, 0.18);
  cursor: pointer;
  transition:
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 320ms ease,
    box-shadow 320ms ease,
    background 320ms ease;
}

body.product-page .version-systems-info-control::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background:
    linear-gradient(135deg, rgba(115, 220, 255, 0.08), transparent 36%, transparent 74%, rgba(115, 220, 255, 0.04));
  opacity: 0.7;
  pointer-events: none;
}

body.product-page .version-systems-info-control::after {
  content: "+";
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 0.8rem;
  height: 0.8rem;
  color: rgba(151, 229, 255, 0.9);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 800;
  line-height: 1;
  transition:
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    color 320ms ease;
}

body.product-page .version-systems-info-control:hover {
  transform: translateY(-1px);
  border-color: rgba(112, 218, 255, 0.24);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 16px 32px rgba(0, 0, 0, 0.22),
    0 0 0 1px rgba(92, 206, 255, 0.04);
}

body.product-page .version-systems-info-label {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--info-text);
  white-space: nowrap;
}

body.product-page .version-systems-info-label-open {
  display: none;
}

body.product-page .version-systems-info-toggle:focus-visible ~ .version-actions .version-systems-info-control {
  outline: 2px solid rgba(112, 218, 255, 0.5);
  outline-offset: 3px;
}

body.product-page .version-systems-info-toggle:checked ~ .version-actions .version-systems-info-control {
  transform: translateY(-1px);
  border-color: rgba(112, 218, 255, 0.3);
  background:
    linear-gradient(180deg, rgba(16, 24, 34, 0.96), rgba(10, 14, 20, 0.98)),
    radial-gradient(circle at top right, rgba(92, 206, 255, 0.16), transparent 56%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 18px 38px rgba(0, 0, 0, 0.24),
    0 0 0 1px rgba(92, 206, 255, 0.05),
    0 0 18px rgba(92, 206, 255, 0.09);
}

body.product-page .version-systems-info-toggle:checked ~ .version-actions .version-systems-info-control::after {
  content: "-";
  color: rgba(175, 238, 255, 0.95);
  transform: translateY(-1px);
}

body.product-page .version-systems-info-toggle:checked ~ .version-actions .version-systems-info-label-closed {
  display: none;
}

body.product-page .version-systems-info-toggle:checked ~ .version-actions .version-systems-info-label-open {
  display: inline-flex;
}

@media (max-width: 1100px) {
  body.product-page .ecosystem-grid,
  body.product-page .addons-hero-grid,
  body.product-page .addons-table-grid,
  body.product-page .addons-stage {
    grid-template-columns: 1fr;
  }

  body.product-page .ecosystem-visuals {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  body.product-page .addons-quick-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  body.product-page .version-actions {
    flex-direction: column;
  }

  body.product-page .version-systems-info-control,
  body.product-page .version-actions .version-tech-details {
    width: 100%;
    flex-basis: auto;
  }

  body.product-page .version-systems-info-label {
    white-space: normal;
  }

  body.product-page .addon-main-media-feature img {
    padding: 1rem;
  }

  body.product-page .addons-intro-card,
  body.product-page .addons-tech-details > summary,
  body.product-page .addons-tech-panel {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

[data-aos] {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-aos="fade-left"] {
  transform: translateX(-50px);
}

[data-aos="fade-right"] {
  transform: translateX(50px);
}

[data-aos="fade-scale"] {
  transform: scale(0.92);
}

[data-aos="fade-up"] {
  transform: translateY(50px);
}

[data-aos].visible {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

/* Stagger children */
[data-aos-delay="100"] {
  transition-delay: 0.1s;
}

[data-aos-delay="200"] {
  transition-delay: 0.2s;
}

[data-aos-delay="300"] {
  transition-delay: 0.3s;
}

[data-aos-delay="400"] {
  transition-delay: 0.4s;
}

[data-aos-delay="500"] {
  transition-delay: 0.5s;
}

[data-aos-delay="600"] {
  transition-delay: 0.6s;
}

/* ═══════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 0.95rem 0 0;
  background: transparent;
  transform: translateY(0);
  opacity: 1;
  will-change: transform;
  transition:
    transform 340ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 240ms ease,
    padding-top var(--transition-base);
}

.site-header.scrolled {
  padding-top: 0.45rem;
}

.site-header.is-hidden {
  transform: translateY(calc(-100% - 20px));
}

.site-header.is-top {
  padding-top: 0.95rem;
}

body.product-page .site-header {
  z-index: 1000;
}

@media (max-width: 1024px) {
  .product-particle-canvas {
    opacity: 0.62;
  }
}

@media (max-width: 680px) {
  .product-particle-canvas {
    opacity: 0.4;
  }
}

.header-container {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  width: min(var(--container-max), calc(100% - 20px));
  margin: 0 auto;
  padding: 0 24px;
  height: 78px;
  border: 1px solid rgba(0, 174, 239, 0.04);
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(7, 11, 17, 0.14), rgba(7, 11, 17, 0.08));
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.04);
  transition:
    width var(--transition-base),
    height var(--transition-base),
    padding var(--transition-base),
    border-color var(--transition-base),
    background var(--transition-base),
    box-shadow var(--transition-base),
    backdrop-filter var(--transition-base);
}

.site-header.scrolled .header-container {
  width: min(calc(var(--container-max) - 26px), calc(100% - 34px));
  height: 64px;
  padding: 0 20px;
  border-color: rgba(0, 174, 239, 0.12);
  background: linear-gradient(180deg, rgba(13, 18, 25, 0.86), rgba(10, 14, 20, 0.92));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow:
    0 18px 44px rgba(0, 0, 0, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.header-logo img {
  height: 44px;
  width: auto;
  filter: drop-shadow(0 0 12px rgba(0, 174, 239, 0));
  transition: 
    height var(--transition-base), 
    filter 0.3s ease,
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  image-rendering: -webkit-optimize-contrast;
}

.header-logo:hover img {
  transform: scale(1.05) translateY(-1px);
  filter: drop-shadow(0 0 18px rgba(0, 174, 239, 0.28)) brightness(1.2);
}

.site-header.scrolled .header-logo img {
  height: 38px;
}

@media (prefers-reduced-motion: reduce) {
  .site-header,
  .header-container,
  .header-logo img {
    transition: none;
  }

  .site-header.is-hidden {
    transform: none;
  }
}

.scroll-top-button {
  position: fixed;
  right: 28px;
  bottom: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border: 1px solid rgba(0, 174, 239, 0.22);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(22, 28, 37, 0.94), rgba(12, 16, 22, 0.98));
  color: var(--text-primary);
  box-shadow:
    0 18px 40px rgba(0, 0, 0, 0.26),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(14px) scale(0.92);
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base),
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base);
  z-index: 980;
}

.scroll-top-button::before {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 13px;
  background: radial-gradient(circle at top, rgba(0, 174, 239, 0.12), transparent 72%);
  opacity: 0.7;
  pointer-events: none;
}

.scroll-top-button svg {
  position: relative;
  z-index: 1;
}

.scroll-top-button.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.scroll-top-button:hover {
  border-color: rgba(0, 174, 239, 0.4);
  box-shadow:
    0 24px 44px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(0, 174, 239, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(180deg, rgba(26, 34, 45, 0.98), rgba(14, 18, 24, 1));
}

.header-nav {
  display: flex;
  justify-content: center;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0.35rem;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.68rem 1rem 0.92rem;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  text-shadow: 0 0 0 rgba(0, 174, 239, 0);
  transition:
    color var(--transition-fast),
    transform var(--transition-fast),
    text-shadow var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0.45rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  transform: scaleX(0);
  transform-origin: center;
  opacity: 0;
  transition:
    transform 220ms ease,
    opacity 220ms ease;
}

.nav-link:hover {
  color: var(--text-primary);
  transform: translateY(-1px);
  text-shadow: 0 0 18px rgba(0, 174, 239, 0.14);
}

.nav-link:hover::after {
  transform: scaleX(1);
  opacity: 0.72;
}

.nav-link[aria-current="page"] {
  color: var(--text-primary);
  text-shadow: 0 0 18px rgba(0, 174, 239, 0.16);
}

.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  opacity: 1;
}

.dropdown-arrow {
  transition: transform var(--transition-fast);
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--space-sm);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  list-style: none;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.dropdown:hover .dropdown-menu,
.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-link {
  display: block;
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 6px;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.dropdown-link:hover {
  color: var(--cyan);
  background: rgba(0, 174, 239, 0.06);
}

/* Header CTA */
.btn-configure-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--bg-primary);
  background: var(--cyan);
  border-radius: 6px;
  transition:
    background var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.btn-configure-nav:hover {
  background: var(--cyan-bright);
  box-shadow: 0 0 20px var(--cyan-glow);
  transform: translateY(-1px);
}

.configure-icon {
  font-size: 14px;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ═══════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-primary);
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(0, 174, 239, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 30% 80%, rgba(0, 174, 239, 0.04) 0%, transparent 60%);
  pointer-events: none;
  animation: heroGradientShift 12s ease-in-out infinite alternate;
}

@keyframes heroGradientShift {
  0% {
    opacity: 0.7;
  }

  50% {
    opacity: 1;
  }

  100% {
    opacity: 0.7;
  }
}

/* Subtle grid pattern for tech feel */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 174, 239, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 174, 239, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  opacity: 0.5;
  mask-image: radial-gradient(ellipse 70% 60% at 60% 50%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 60% 50%, black, transparent);
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-5xl) var(--space-lg) var(--space-4xl);
  position: relative;
  z-index: 1;
}

.hero-content {
  animation: heroContentIn 1s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

@keyframes heroContentIn {
  from {
    opacity: 0;
    transform: translateY(40px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--cyan);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  animation: kickerGlow 3s ease-in-out infinite alternate;
}

@keyframes kickerGlow {
  0% {
    text-shadow: 0 0 8px rgba(0, 174, 239, 0.2);
  }

  100% {
    text-shadow: 0 0 16px rgba(0, 174, 239, 0.5);
  }
}

.hero-title {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 1;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, #FFFFFF 0%, #A0A8B8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.2vw, 1.5rem);
  font-weight: 300;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  letter-spacing: 0.5px;
}

.hero-description {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: var(--space-xl);
}

.hero-ctas {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: heroVisualIn 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.5s both;
}

@keyframes heroVisualIn {
  from {
    opacity: 0;
    transform: translateX(60px) scale(0.95);
  }

  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

.hero-image-wrapper {
  position: relative;
  width: 100%;
  max-width: 560px;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(10px, 2vw, 24px);
  isolation: isolate;
  animation: heroFloat 6s ease-in-out infinite;
}

.hero-image-wrapper::before {
  content: '';
  position: absolute;
  inset: 10% 8% 12%;
  border-radius: 32px;
  background:
    radial-gradient(circle at 50% 45%, rgba(0, 174, 239, 0.08) 0%, rgba(0, 174, 239, 0.02) 38%, transparent 72%);
  filter: blur(10px);
  pointer-events: none;
  z-index: 0;
}

@keyframes heroFloat {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-12px);
  }
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-hero);
  filter: drop-shadow(0 20px 60px rgba(0, 174, 239, 0.12));
  transform: translate3d(var(--hero-shift-x, 0), var(--hero-shift-y, 0), 0) scale(var(--hero-scale, 1));
  z-index: 1;
}

.hero-img:first-child {
  position: absolute;
}

.hero-img.active {
  opacity: 1;
}

#hero-img-1 {
  --hero-scale: 1.02;
  --hero-shift-x: -1.5%;
  --hero-shift-y: 1.5%;
}

#hero-img-2 {
  --hero-scale: 1.08;
  --hero-shift-x: 1%;
  --hero-shift-y: 4.5%;
}

.hero-label {
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--cyan);
  padding: 6px 20px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: rgba(15, 17, 21, 0.85);
  backdrop-filter: blur(10px);
  white-space: nowrap;
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: 0.3;
    transform: scaleY(0.6);
  }

  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

/* ─── BUTTONS — Dynamic ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--bg-primary);
  background: var(--cyan);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s ease, height 0.5s ease;
}

.btn-primary:hover {
  background: var(--cyan-bright);
  box-shadow: 0 4px 24px var(--cyan-glow-strong), 0 0 48px var(--cyan-glow);
  transform: translateY(-2px);
}

.btn-primary:hover::after {
  width: 300px;
  height: 300px;
}

.btn-primary:active {
  transform: translateY(0) scale(0.97);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--text-primary);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--border-radius);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-secondary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 174, 239, 0.08), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-secondary:hover {
  border-color: var(--cyan);
  background: rgba(0, 174, 239, 0.06);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 174, 239, 0.1);
}

.btn-secondary:hover::before {
  opacity: 1;
}

.btn-secondary:active {
  transform: translateY(0) scale(0.97);
}

.btn-icon {
  display: flex;
  align-items: center;
  transition: transform 0.3s ease;
}

.btn-primary:hover .btn-icon,
.btn-secondary:hover .btn-icon {
  transform: scale(1.15);
}

/* ═══════════════════════════════════════════════════════════
   TECHNICAL SPECS CARDS
   ═══════════════════════════════════════════════════════════ */
.tech-specs {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
  position: relative;
}

.tech-specs::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.tech-specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.tech-card {
  position: relative;
  padding: var(--space-xl) var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  transition: border-color 0.4s ease, box-shadow 0.4s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.tech-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--cyan), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: -1;
}

.tech-card:hover {
  border-color: transparent;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 24px var(--cyan-glow);
  transform: translateY(-6px);
}

.tech-card:hover::before {
  opacity: 0.15;
}

.tech-card-icon {
  margin-bottom: var(--space-md);
  opacity: 0.8;
  transition: transform 0.4s ease, opacity 0.3s ease;
}

.tech-card:hover .tech-card-icon {
  transform: scale(1.12);
  opacity: 1;
}

.tech-card-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--cyan);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
}

.tech-card-value {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary);
}

.tech-card-value span {
  font-weight: 400;
  color: var(--text-secondary);
  font-size: 1rem;
}

.tech-card-line {
  position: absolute;
  bottom: 0;
  left: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  transition: left 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.tech-card:hover .tech-card-line {
  left: 0;
}

/* ═══════════════════════════════════════════════════════════
   POWERING INNOVATION
   ═══════════════════════════════════════════════════════════ */
.powering-innovation {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
  text-align: center;
}

.powering-content {
  max-width: 720px;
  margin: 0 auto;
}

.powering-text {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 300;
  line-height: 1.8;
  color: var(--text-secondary);
}

.powering-accent-line {
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--cyan-bright));
  margin: var(--space-xl) auto 0;
  border-radius: 1px;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.4s;
}

.powering-content.visible .powering-accent-line {
  width: 80px;
}

/* ═══════════════════════════════════════════════════════════
   WORKFLOW STEPS
   ═══════════════════════════════════════════════════════════ */
.workflow {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.workflow-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: border-color 0.4s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
}

.workflow-card:hover {
  border-color: var(--border-color);
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35), 0 0 30px var(--cyan-glow);
}

.workflow-number {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 2px;
  z-index: 2;
  background: rgba(15, 17, 21, 0.8);
  padding: 4px 10px;
  border-radius: 4px;
  backdrop-filter: blur(8px);
  border: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.workflow-card:hover .workflow-number {
  border-color: var(--border-color);
  box-shadow: 0 0 12px var(--cyan-glow);
}

.workflow-image-wrapper {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
}

.workflow-image-wrapper::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(to top, var(--bg-card), transparent);
  pointer-events: none;
}

.workflow-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1), filter 0.5s ease;
  filter: brightness(0.85);
}

.workflow-card:hover .workflow-image-wrapper img {
  transform: scale(1.08);
  filter: brightness(1);
}

.workflow-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: var(--space-lg) var(--space-lg) var(--space-sm);
}

.workflow-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  padding: 0 var(--space-lg) var(--space-lg);
}

/* ═══════════════════════════════════════════════════════════
   FFT-GYRO OVERVIEW
   ═══════════════════════════════════════════════════════════ */
.overview {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
}

.overview-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.overview-toggle {
  display: inline-flex;
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
  padding: 4px;
  margin-top: var(--space-md);
}

.toggle-btn {
  position: relative;
  z-index: 1;
  padding: 10px 32px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-muted);
  border-radius: 6px;
  transition: color var(--transition-fast);
}

.toggle-btn.active {
  color: var(--bg-primary);
}

.toggle-slider {
  position: absolute;
  top: 4px;
  left: 4px;
  width: calc(50% - 4px);
  height: calc(100% - 8px);
  background: var(--cyan);
  border-radius: 6px;
  transition: transform var(--transition-base);
}

.overview-toggle.g40-active .toggle-slider {
  transform: translateX(100%);
}

.overview-visual {
  display: flex;
  justify-content: center;
}

.overview-image-wrapper {
  position: relative;
  max-width: 900px;
  width: 100%;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

.overview-img {
  width: 100%;
  height: auto;
  object-fit: contain;
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  transform: scale(0.97);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.overview-img:first-child {
  position: relative;
}

.overview-img.active {
  opacity: 1;
  transform: scale(1);
}



/* ═══════════════════════════════════════════════════════════
   SPECS DOWNLOAD BAND
   ═══════════════════════════════════════════════════════════ */
.specs-band {
  padding: var(--space-2xl) 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.specs-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.specs-band-text {
  font-size: 1rem;
  color: var(--text-secondary);
}

.btn-specs-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-specs-download:hover {
  background: rgba(0, 174, 239, 0.06);
  border-color: var(--cyan);
  box-shadow: 0 0 20px var(--cyan-glow);
}

/* ═══════════════════════════════════════════════════════════
   PERFECT FOR — MARQUEE
   ═══════════════════════════════════════════════════════════ */
.perfect-for {
  padding: var(--space-4xl) 0 var(--space-3xl);
  background: var(--bg-primary);
  overflow: hidden;
}

.marquee-wrapper {
  overflow: hidden;
  margin-top: var(--space-xl);
  mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}

.marquee-track {
  display: flex;
  gap: var(--space-lg);
  animation: marqueeScroll 30s linear infinite;
  width: max-content;
}

.marquee-track:hover {
  animation-play-state: paused;
}

@keyframes marqueeScroll {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

.marquee-card {
  flex: 0 0 280px;
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.marquee-card:hover {
  border-color: var(--border-color);
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3), 0 0 16px var(--cyan-glow);
}

.marquee-card-icon {
  margin-bottom: var(--space-md);
  transition: transform 0.3s ease;
}

.marquee-card:hover .marquee-card-icon {
  transform: scale(1.15);
}

.marquee-card-icon {
  margin-bottom: var(--space-md);
}

.marquee-card h4 {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: var(--space-sm);
}

.marquee-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.applications-showcase {
  position: relative;
  padding: var(--space-4xl) 0;
  background:
    radial-gradient(circle at top center, rgba(0, 174, 239, 0.08) 0%, transparent 28%),
    linear-gradient(180deg, var(--bg-secondary) 0%, #10141a 100%);
  border-top: 1px solid var(--border-subtle);
}

.applications-showcase .section-title {
  margin-bottom: var(--space-2xl);
}

body.product-page .perfect-for {
  padding: var(--space-3xl) 0 calc(var(--space-3xl) - 8px);
}

body.product-page .perfect-for .section-title {
  margin-bottom: 0;
}

body.product-page .perfect-for .marquee-wrapper {
  margin-top: clamp(1.4rem, 2.8vw, 1.9rem);
}

body.product-page .applications-showcase {
  padding: calc(var(--space-3xl) - 4px) 0 var(--space-3xl);
}

body.product-page .applications-showcase .section-title {
  margin-bottom: clamp(1.8rem, 3vw, 2.4rem);
}

.applications-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-lg);
}

.application-card {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 100%;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(24, 28, 34, 0.96), rgba(16, 20, 26, 0.98));
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.22);
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
}

.application-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(0, 174, 239, 0.65), transparent 72%);
  opacity: 0.9;
  pointer-events: none;
}

.application-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-color);
  box-shadow: 0 24px 52px rgba(0, 0, 0, 0.3), 0 0 18px rgba(0, 174, 239, 0.08);
}

.application-image-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10.5;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(0, 0, 0, 0.12));
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.application-image-wrap::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 42%;
  background: linear-gradient(180deg, transparent 0%, rgba(9, 11, 15, 0.32) 100%);
  pointer-events: none;
}

.application-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms cubic-bezier(0.16, 1, 0.3, 1), filter var(--transition-base);
}

.application-card:hover .application-image-wrap img {
  transform: scale(1.03);
  filter: saturate(1.05);
}

.application-card-body {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-lg);
}

.application-card-title {
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-primary);
}

.application-card-text {
  font-size: 0.92rem;
  line-height: 1.68;
  color: var(--text-secondary);
}

.applications-more {
  margin-top: var(--space-xl);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════════════
   CUSTOMERS
   ═══════════════════════════════════════════════════════════ */
.customers {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
}

.customers-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  max-width: 1040px;
  margin: 0 auto;
}

.customer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  transition:
    border-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base);
  aspect-ratio: 1.22 / 1;
  min-height: 174px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.customer-logo:hover {
  border-color: var(--border-color);
  transform: translateY(-3px);
  background: linear-gradient(180deg, rgba(28, 34, 42, 0.98), rgba(21, 26, 33, 1));
  box-shadow:
    0 18px 34px rgba(0, 0, 0, 0.18),
    0 0 0 1px rgba(0, 174, 239, 0.04);
}

.customer-logo img {
  max-width: 96%;
  max-height: 104px;
  object-fit: contain;
  filter: grayscale(100%) brightness(0.84) contrast(1.08);
  opacity: 0.82;
  transform: scale(1.08);
  transform-origin: center;
  transition:
    filter var(--transition-base),
    opacity var(--transition-base),
    transform var(--transition-base);
}

.customer-logo:hover img {
  filter: grayscale(0%) brightness(1) contrast(1.05);
  opacity: 1;
  transform: scale(1.14);
}



/* ═══════════════════════════════════════════════════════════
   CLIENT FEEDBACK CAROUSEL
   ═══════════════════════════════════════════════════════════ */
.feedback {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
}

.feedback-carousel {
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
}

.feedback-track {
  display: flex;
  transition: transform var(--transition-slow);
}

.feedback-card {
  flex: 0 0 100%;
  padding: var(--space-2xl) var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-xl);
  margin: 0 var(--space-sm);
}

.feedback-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.feedback-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--border-color);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
}

.feedback-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feedback-avatar.sejong-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feedback-name {
  font-size: 1rem;
  font-weight: 700;
}

.feedback-role {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.feedback-quote {
  font-size: 1.05rem;
  font-style: italic;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.feedback-expandable {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.feedback-expandable.open {
  max-height: 300px;
}

.feedback-expandable p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-muted);
  padding-bottom: var(--space-md);
}

.feedback-toggle-btn {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--cyan);
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.feedback-toggle-btn:hover {
  color: var(--cyan-bright);
}

.feedback-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.feedback-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.feedback-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 174, 239, 0.06);
}

.feedback-dots {
  display: flex;
  gap: 8px;
}

.feedback-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.feedback-dot.active {
  background: var(--cyan);
  transform: scale(1.25);
}

/* ═══════════════════════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════════════════════ */
.contact {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  max-width: 800px;
  margin: 0 auto;
}

.contact-card {
  padding: var(--space-2xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-xl);
  text-align: center;
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.contact-card:hover {
  border-color: var(--border-color);
  transform: translateY(-2px);
}

.contact-card-icon {
  margin-bottom: var(--space-lg);
}

.contact-card-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: var(--space-md);
}

.contact-card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.contact-btn {
  width: 100%;
  justify-content: center;
}

/* ═══════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════ */
.site-footer {
  padding: var(--space-2xl) 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.footer-brand img {
  height: 34px;
  width: auto;
  transition: transform 0.3s ease, filter 0.3s ease;
}

.footer-brand:hover img {
  transform: scale(1.06);
  filter: drop-shadow(0 0 12px rgba(0, 174, 239, 0.2));
}

.footer-brand p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--cyan);
}

.footer-copy p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════
   SYSTEM CONFIGURATOR — SIDE PANEL
   ═══════════════════════════════════════════════════════════ */
.configurator-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.configurator-overlay.active {
  opacity: 1;
  visibility: visible;
}

.configurator-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 420px;
  max-width: 100%;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-subtle);
  z-index: 2001;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow: hidden;
}

.configurator-panel.active {
  transform: translateX(0);
}

.config-edit-modal-layer {
  position: absolute;
  inset: 0;
  display: grid;
  align-items: center;
  justify-items: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  z-index: 8;
  transition: opacity 220ms ease, visibility 0s linear 220ms;
}

.config-edit-modal-layer.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0s;
}

.config-edit-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 10, 15, 0.78);
  backdrop-filter: blur(8px);
}

.config-edit-modal {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px;
  width: min(620px, 100%);
  max-height: min(78vh, 760px);
  overflow: auto;
  padding: 22px;
  border-radius: 24px;
  border: 1px solid rgba(0, 174, 239, 0.14);
  background:
    radial-gradient(circle at top right, rgba(0, 174, 239, 0.1), transparent 42%),
    linear-gradient(180deg, rgba(22, 28, 37, 0.985), rgba(13, 18, 24, 0.985));
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.42);
  transform: translate3d(0, 18px, 0) scale(0.985);
  transition: transform 280ms cubic-bezier(0.16, 1, 0.3, 1);
}

.config-edit-modal-layer.active .config-edit-modal {
  transform: translate3d(0, 0, 0) scale(1);
}

.config-edit-modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.config-edit-modal-kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.config-edit-modal-title {
  margin: 0;
  font-size: 1.18rem;
  font-weight: 800;
  line-height: 1.16;
  color: var(--text-primary);
}

.config-edit-modal-copy {
  margin: 0;
  max-width: 46ch;
  font-size: 0.84rem;
  line-height: 1.72;
  color: var(--text-secondary);
}

.config-edit-modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-muted);
  transition:
    color var(--transition-base),
    border-color var(--transition-base),
    background var(--transition-base),
    transform var(--transition-base);
}

.config-edit-modal-close:hover {
  color: var(--text-primary);
  border-color: rgba(0, 174, 239, 0.18);
  background: rgba(0, 174, 239, 0.08);
  transform: translateY(-1px);
}

.config-edit-modal-close:focus-visible,
.config-edit-option:focus-visible {
  outline: none;
  border-color: rgba(0, 174, 239, 0.28);
  box-shadow:
    0 0 0 1px rgba(0, 174, 239, 0.2),
    0 14px 28px rgba(0, 0, 0, 0.2);
}

.config-edit-options {
  display: grid;
  gap: 10px;
}

.config-edit-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 15px 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(180deg, rgba(28, 34, 43, 0.96), rgba(18, 23, 31, 0.96));
  text-align: left;
  transition:
    border-color var(--transition-base),
    background var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.config-edit-option:hover {
  border-color: rgba(0, 174, 239, 0.18);
  background: linear-gradient(180deg, rgba(31, 39, 49, 0.98), rgba(20, 26, 34, 0.98));
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.18);
}

.config-edit-option-copy {
  display: grid;
  gap: 6px;
}

.config-edit-option-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.config-edit-option-value {
  font-size: 0.93rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-primary);
}

.config-edit-option-arrow {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: transform var(--transition-base), color var(--transition-base);
}

.config-edit-option:hover .config-edit-option-arrow {
  color: var(--cyan-bright);
  transform: translateX(3px);
}

.configurator-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.configurator-kicker {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--cyan);
  margin-bottom: 4px;
}

.configurator-title {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.configurator-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  color: var(--text-muted);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.configurator-close:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.configurator-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.configurator-body::-webkit-scrollbar {
  width: 4px;
}

.configurator-body::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 2px;
}

/* Config groups */
.config-group {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
}

.config-group:last-child {
  border-bottom: none;
}

.config-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.config-unit {
  font-weight: 400;
  color: var(--text-muted);
  text-transform: none;
}

.config-tooltip {
  position: relative;
  cursor: help;
  color: var(--text-muted);
  display: inline-flex;
}

.config-tooltip::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: 220px;
  padding: 10px 12px;
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  line-height: 1.5;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
  pointer-events: none;
  z-index: 10;
}

.config-tooltip:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Size buttons */
.config-sizes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.size-btn {
  padding: 10px 4px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.size-btn:hover {
  border-color: var(--border-color);
  color: var(--text-primary);
}

.size-btn.active {
  background: var(--cyan);
  color: var(--bg-primary);
  border-color: var(--cyan);
}

.size-btn.disabled {
  opacity: 0.3;
  pointer-events: none;
}

/* Options (Material, Version, Edition) */
.config-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.option-btn {
  padding: 10px 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.option-btn:hover {
  border-color: var(--border-color);
  color: var(--text-primary);
}

.option-btn.active {
  background: rgba(0, 174, 239, 0.12);
  color: var(--cyan);
  border-color: var(--cyan);
}

/* Custom textarea */
.config-textarea {
  width: 100%;
  padding: 12px;
  font-family: var(--font-primary);
  font-size: 0.85rem;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
  resize: vertical;
  transition: border-color var(--transition-fast);
  outline: none;
}

.config-textarea::placeholder {
  color: var(--text-muted);
}

.config-textarea:focus {
  border-color: var(--cyan);
}

/* Dynamic Info Row */
.config-info-row {
  display: flex;
  gap: 12px;
}

.config-info-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
}

.config-info-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

.config-info-value {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cyan);
  transition: color 0.3s ease;
}

/* Custom Config Toggle */
.config-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.config-toggle-row .config-label {
  margin-bottom: 0;
}

.config-custom-switch {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.switch-track {
  display: block;
  width: 40px;
  height: 22px;
  background: var(--border-subtle);
  border-radius: 11px;
  position: relative;
  transition: background 0.3s ease;
}

.switch-thumb {
  display: block;
  width: 16px;
  height: 16px;
  background: var(--text-muted);
  border-radius: 50%;
  position: absolute;
  top: 3px;
  left: 3px;
  transition: transform 0.3s ease, background 0.3s ease;
}

.config-custom-switch.active .switch-track {
  background: var(--cyan);
}

.config-custom-switch.active .switch-thumb {
  transform: translateX(18px);
  background: var(--bg-primary);
}

.config-custom-area {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, margin-top 0.3s ease;
  margin-top: 0;
}

.config-custom-area.open {
  max-height: 200px;
  margin-top: var(--space-sm);
}

/* Pro Upgrades */
.config-upgrades {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#config-upgrades-group.hidden {
  display: none;
}

.upgrade-block {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.upgrade-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: border-color var(--transition-fast), opacity 0.3s ease;
}

.upgrade-option:hover {
  border-color: var(--border-color);
}

.upgrade-option.disabled {
  opacity: 0.35;
  pointer-events: none;
  cursor: not-allowed;
}

.upgrade-check {
  display: none;
}

.upgrade-checkmark {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border: 2px solid var(--border-subtle);
  border-radius: 4px;
  position: relative;
  margin-top: 2px;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.upgrade-check:checked+.upgrade-checkmark {
  background: var(--cyan);
  border-color: var(--cyan);
}

.upgrade-check:checked+.upgrade-checkmark::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 5px;
  width: 4px;
  height: 8px;
  border: solid var(--bg-primary);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.upgrade-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.upgrade-text strong {
  font-size: 0.85rem;
  font-weight: 600;
}

.upgrade-text small {
  font-size: 0.72rem;
  color: var(--text-muted);
  transition: color 0.3s ease;
}

/* Motor Kit Sub-Radios */
.motor-sub-options {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 12px;
  background: rgba(15, 17, 21, 0.5);
  border-left: 2px solid var(--border-subtle);
  margin-left: 24px;
}

.motor-sub-options.open {
  max-height: 150px;
  padding: 8px 12px;
  border-left-color: var(--cyan);
}

.motor-radio-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.motor-radio-option:hover {
  color: var(--text-primary);
}

.motor-radio {
  display: none;
}

.radio-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--border-subtle);
  position: relative;
  flex-shrink: 0;
  transition: border-color 0.2s ease;
}

.motor-radio:checked ~ .radio-dot {
  border-color: var(--cyan);
}

.motor-radio:checked ~ .radio-dot::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.motor-radio:checked ~ .radio-label-text {
  color: var(--text-primary);
  font-weight: 500;
}

.radio-label-text {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.5px;
}

/* Compat Note */
.upgrade-compat-note {
  font-size: 0.72rem;
  color: #f59e0b;
  margin-top: var(--space-sm);
  font-style: italic;
  min-height: 1em;
  transition: color 0.3s ease;
}

.upgrade-compat-note.upgrade-compat-warning {
  color: #ef4444;
  font-weight: 500;
}

/* Configurator Footer */
.configurator-footer {
  padding: var(--space-lg);
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.config-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: var(--space-md);
}

.config-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--text-muted);
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--cyan);
  transition: color 0.3s ease, opacity 0.3s ease;
}

.stat-value.calculating {
  color: var(--text-muted);
  animation: calcPulse 0.6s ease infinite;
}

@keyframes calcPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.config-quote-btn {
  width: 100%;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.config-assistance {
  text-align: center;
}

.config-assistance>p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.config-assist-toggle {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cyan);
  transition: color var(--transition-fast);
}

.config-assist-toggle:hover {
  color: var(--cyan-bright);
}

.config-assist-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base), margin-top var(--transition-base);
}

.config-assist-panel.open {
  max-height: 120px;
  margin-top: var(--space-md);
}

.assist-email {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.config-contact-btn {
  width: 100%;
  justify-content: center;
  font-size: 0.75rem;
  padding: 10px 20px;
}

/* ═══════════════════════════════════════════════════════════
   SPEC SHEETS MODAL
   ═══════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.specs-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  width: 90%;
  max-width: 900px;
  max-height: 85vh;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-xl);
  z-index: 3001;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.6);
}

.specs-modal.active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.specs-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.specs-modal-kicker {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--cyan);
  margin-bottom: 4px;
}

.specs-modal-title {
  font-size: 1.2rem;
  font-weight: 800;
}

.specs-modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  color: var(--text-muted);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.specs-modal-close:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.specs-modal-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg) var(--space-xl);
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.specs-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.specs-series-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--cyan);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-color);
}

/* Accordion */
.specs-accordion-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.specs-accordion-item.open {
  border-color: var(--border-color);
}

.specs-accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  background: var(--bg-card);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.specs-accordion-header:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.specs-accordion-item.open .specs-accordion-header {
  color: var(--cyan);
  background: rgba(0, 174, 239, 0.06);
}

.specs-accordion-arrow {
  transition: transform var(--transition-fast);
}

.specs-accordion-item.open .specs-accordion-arrow {
  transform: rotate(180deg);
}

.specs-accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.specs-accordion-body-inner {
  padding: 12px 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.spec-download-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.spec-download-link:hover {
  color: var(--cyan);
  border-color: var(--border-color);
  background: rgba(0, 174, 239, 0.04);
}

.spec-download-link svg {
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE DESIGN
   ═══════════════════════════════════════════════════════════ */

/* Tablet & below */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-2xl);
  }

  .hero-content {
    order: 1;
  }

  .hero-visual {
    order: 0;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-ctas {
    justify-content: center;
  }

  .hero-image-wrapper {
    max-width: 420px;
    margin: 0 auto;
    padding: 18px;
  }

  .tech-specs-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .workflow-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .specs-columns {
    grid-template-columns: 1fr;
  }

  .customers-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ─── 768px — Mobile ─── */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
    --space-4xl: 64px;
    --space-5xl: 80px;
  }

  /* Header / Mobile Nav */
  .site-header,
  .site-header.is-top,
  .site-header.scrolled {
    padding-top: 0.45rem;
  }

  .site-header.is-hidden {
    transform: none;
  }

  .header-container,
  .site-header.scrolled .header-container {
    width: calc(100% - 16px);
    height: 60px;
    padding: 0 14px;
    border-radius: 20px;
    border-color: rgba(0, 174, 239, 0.12);
    background: linear-gradient(180deg, rgba(12, 17, 24, 0.92), rgba(8, 12, 18, 0.96));
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow:
      0 14px 32px rgba(0, 0, 0, 0.26),
      inset 0 1px 0 rgba(255, 255, 255, 0.04);
  }

  .site-header.scrolled .header-logo img,
  .header-logo img {
    height: 32px;
  }

  .header-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 80px var(--space-lg) var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 999;
  }

  .header-nav.open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }

  .nav-link {
    padding: 14px 16px;
    width: 100%;
    font-size: 0.95rem;
  }

  .dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0 0 0 var(--space-lg);
    display: none;
  }

  .dropdown.open .dropdown-menu {
    display: block;
  }

  .hamburger {
    display: flex;
  }

  .header-actions {
    display: none;
  }

  .scroll-top-button {
    right: 18px;
    bottom: 18px;
    width: 52px;
    height: 52px;
    border-radius: 16px;
  }

  /* Hero */
  .hero-container {
    padding-top: var(--space-4xl);
    padding-bottom: var(--space-3xl);
  }

  .hero-image-wrapper {
    max-width: 340px;
    padding: 14px;
  }

  .hero-scroll-indicator {
    display: none;
  }

  /* Section spacing */
  .section-title {
    margin-bottom: var(--space-xl);
  }

  .tech-specs,
  .powering-innovation,
  .workflow,
  .overview,
  .perfect-for,
  .applications-showcase,
  .customers,
  .contact {
    padding: var(--space-3xl) 0;
  }

  /* Overview tabs */
  .toggle-btn {
    padding: 10px 20px;
    font-size: 0.8rem;
  }

  /* Marquee */
  .marquee-card {
    flex: 0 0 240px;
    padding: var(--space-lg);
  }

  .applications-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* Customer logos */
  .customers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .customer-logo {
    aspect-ratio: 4 / 3;
    min-height: 152px;
  }

  /* Feedback */
  .feedback-card {
    padding: var(--space-xl) var(--space-lg);
  }

  .feedback-text {
    font-size: 1rem;
    line-height: 1.7;
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-card {
    padding: var(--space-xl);
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-xl);
  }

  .footer-brand {
    flex-direction: column;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  /* Configurator Panel */
  .configurator-panel {
    width: 100%;
  }

  .configurator-body {
    padding: var(--space-md);
  }

  .config-info-row {
    flex-direction: column;
    gap: 8px;
  }

  .config-stats-grid {
    gap: 8px;
  }

  /* Specs Modal */
  .specs-modal {
    width: 95%;
    max-height: 90vh;
  }

  .specs-modal-body {
    padding: var(--space-md);
  }

  .specs-accordion-body-inner {
    grid-template-columns: 1fr;
  }

  /* Specs band */
  .specs-band-inner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }

  .btn-specs-download {
    width: 100%;
    justify-content: center;
  }
}

/* ─── 480px — Small phones ─── */
@media (max-width: 480px) {
  :root {
    --space-4xl: 48px;
    --space-3xl: 40px;
  }

  .container {
    padding: 0 var(--space-md);
  }

  /* Hero */
  .hero {
    min-height: auto;
  }

  .hero-container {
    padding-top: var(--space-4xl);
    padding-bottom: var(--space-2xl);
  }

  .hero-title {
    font-size: 2.5rem;
    letter-spacing: -1px;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-description {
    font-size: 0.9rem;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-ctas .btn-primary,
  .hero-ctas .btn-secondary {
    justify-content: center;
    padding: 14px 20px;
  }

  .hero-image-wrapper {
    max-width: 280px;
    padding: 10px;
  }

  #hero-img-2 {
    --hero-scale: 1.05;
    --hero-shift-y: 3.5%;
  }

  .hero-label {
    font-size: 0.6rem;
    padding: 4px 14px;
    letter-spacing: 2px;
  }

  /* Section titles */
  .section-title {
    font-size: 1.5rem;
  }

  .section-kicker {
    font-size: 0.7rem;
    letter-spacing: 2px;
  }

  /* Tech cards */
  .tech-card {
    padding: var(--space-lg) var(--space-md);
  }

  .tech-card-value {
    font-size: 1.15rem;
  }

  /* Powering Innovation */
  .powering-text {
    font-size: 1rem;
    line-height: 1.7;
  }

  /* Workflow */
  .workflow-grid {
    max-width: 100%;
  }

  .workflow-image-wrapper {
    height: 180px;
  }

  .workflow-title {
    font-size: 0.9rem;
    padding: var(--space-md) var(--space-md) var(--space-xs);
  }

  .workflow-desc {
    font-size: 0.82rem;
    padding: 0 var(--space-md) var(--space-md);
  }

  /* Overview */
  .toggle-btn {
    padding: 8px 14px;
    font-size: 0.72rem;
  }

  /* Marquee */
  .marquee-card {
    flex: 0 0 200px;
    padding: var(--space-md);
  }

  .marquee-card h4 {
    font-size: 0.8rem;
  }

  .marquee-card p {
    font-size: 0.75rem;
  }

  .applications-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .application-card-body {
    padding: var(--space-md);
  }

  .application-card-title {
    font-size: 1rem;
  }

  .application-card-text {
    font-size: 0.84rem;
    line-height: 1.62;
  }

  .applications-more {
    font-size: 0.74rem;
  }

  .scroll-top-button {
    right: 14px;
    bottom: 14px;
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }

  /* Customers */
  .customers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .customer-logo {
    aspect-ratio: 1 / 1;
    padding: var(--space-md);
    min-height: 132px;
  }

  .customer-logo img {
    max-height: 72px;
    transform: scale(1.02);
  }

  /* Feedback */
  .feedback-card {
    padding: var(--space-lg);
  }

  .feedback-header {
    gap: var(--space-sm);
  }

  .feedback-avatar {
    width: 44px;
    height: 44px;
  }

  .feedback-name {
    font-size: 0.9rem;
  }

  .feedback-role {
    font-size: 0.72rem;
  }

  .feedback-text {
    font-size: 0.9rem;
  }

  .feedback-toggle-btn {
    font-size: 0.72rem;
    padding: 8px 0;
  }

  /* Configurator */
  .configurator-header {
    padding: var(--space-md);
  }

  .configurator-body {
    padding: var(--space-md);
  }

  .configurator-footer {
    padding: var(--space-md);
  }

  .config-sizes {
    grid-template-columns: repeat(4, 1fr);
  }

  .size-btn {
    padding: 10px 2px;
    font-size: 0.72rem;
  }

  .option-btn {
    padding: 10px 6px;
    font-size: 0.75rem;
  }

  .config-label {
    font-size: 0.7rem;
  }

  .config-stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }

  .stat-label {
    font-size: 0.6rem;
  }

  .stat-value {
    font-size: 0.85rem;
  }

  /* Specs modal */
  .specs-modal {
    width: 98%;
    max-height: 92vh;
    border-radius: var(--border-radius-lg);
  }

  .specs-modal-header {
    padding: var(--space-md);
  }

  .specs-modal-title {
    font-size: 1rem;
  }

  .specs-accordion-header {
    padding: 10px 12px;
    font-size: 0.75rem;
  }

  .spec-download-link {
    padding: 10px;
    font-size: 0.7rem;
  }

  /* Contact */
  .contact-card {
    padding: var(--space-lg);
  }

  .contact-card-title {
    font-size: 0.9rem;
  }

  .contact-card-desc {
    font-size: 0.82rem;
  }

  /* Footer */
  .footer-links {
    gap: var(--space-md);
  }

  .footer-links a {
    font-size: 0.75rem;
  }

  .footer-copy p {
    font-size: 0.7rem;
  }
}

/* ─── Scrollbar global ─── */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* ─── Selection ─── */
::selection {
  background: rgba(0, 174, 239, 0.25);
  color: var(--text-primary);
}

/* ─── Body scroll lock when panel/modal is open ─── */
body.no-scroll {
  overflow: hidden;
}

/* Guided Configurator Assistant */
.configurator-panel {
  width: min(860px, 100vw);
  background:
    radial-gradient(circle at top right, rgba(0, 174, 239, 0.08), transparent 30%),
    linear-gradient(180deg, rgba(20, 23, 28, 0.98), rgba(14, 17, 22, 0.99));
}

.configurator-header {
  padding: 20px 24px 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
}

.configurator-stepper {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  padding: 0 24px 18px;
  border-bottom: 1px solid var(--border-subtle);
}

.config-step {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 62px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  text-align: left;
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    background var(--transition-base),
    color var(--transition-base);
}

.config-step:not(.is-locked):hover {
  transform: translateY(-1px);
  border-color: rgba(0, 174, 239, 0.22);
}

.config-step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
}

.config-step-copy {
  display: grid;
  gap: 2px;
}

.config-step-copy strong {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.config-step-copy small {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.config-step.is-current {
  border-color: rgba(0, 174, 239, 0.28);
  background: linear-gradient(180deg, rgba(0, 174, 239, 0.12), rgba(255, 255, 255, 0.02));
}

.config-step.is-current .config-step-index {
  background: rgba(0, 174, 239, 0.16);
  border-color: rgba(0, 174, 239, 0.28);
  color: var(--cyan);
}

.config-step.is-complete {
  border-color: rgba(34, 197, 94, 0.18);
  background: rgba(34, 197, 94, 0.05);
}

.config-step.is-complete .config-step-index {
  background: rgba(34, 197, 94, 0.16);
  border-color: rgba(34, 197, 94, 0.26);
  color: transparent;
  position: relative;
}

.config-step.is-complete .config-step-index::after {
  content: "✓";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.86rem;
  color: #8ef0b4;
}

.config-step.is-locked {
  opacity: 0.46;
  cursor: not-allowed;
}

.config-step.is-complete .config-step-index::after {
  content: "\2713";
}

.configurator-body {
  padding: 18px 24px 22px;
}

.configurator-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(280px, 0.9fr);
  gap: 18px;
  align-items: start;
}

.configurator-main,
.configurator-sidebar {
  min-width: 0;
}

.configurator-main {
  display: grid;
  gap: 18px;
  align-content: start;
}

.configurator-sidebar {
  display: grid;
  gap: 14px;
  position: sticky;
  top: 0;
}

.config-status-banner {
  display: none;
  margin-bottom: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(245, 158, 11, 0.16);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.12), rgba(255, 255, 255, 0.02));
  color: #fcd28c;
  font-size: 0.82rem;
  line-height: 1.6;
}

.config-status-banner.is-visible {
  display: block;
}

.config-step-panel {
  display: none;
  gap: 18px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(0, 0, 0, 0.06)),
    var(--bg-card);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.config-step-panel.is-active {
  display: grid;
}

.config-step-head {
  display: grid;
  gap: 8px;
}

.config-step-kicker {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.config-step-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.config-step-copy-text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.config-size-metrics {
  margin-top: 10px;
}

.config-size-calculator {
  display: grid;
  gap: 16px;
  margin-bottom: 24px;
}

.size-input-group {
  display: grid;
  gap: 8px;
}

.size-input-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.size-calc-input {
  width: 100%;
  padding: 14px 16px;
  background: 
    radial-gradient(circle at top right, rgba(76, 181, 255, 0.06), transparent 50%),
    rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 1.15rem;
  font-weight: 500;
  font-family: var(--font-primary);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  outline: none;
}

.size-calc-input::placeholder {
  color: rgba(255, 255, 255, 0.2);
}

.size-calc-input:focus {
  border-color: rgba(76, 181, 255, 0.5);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 
    inset 0 2px 4px rgba(0, 0, 0, 0.2),
    0 0 0 3px rgba(76, 181, 255, 0.15);
}

.config-size-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.config-size-visual img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transform: scale(1.02); /* Slight crop to eliminate borders */
}

.size-dynamic-msg {
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  padding: 0 4px;
  opacity: 0;
  max-height: 0;
  transform: translateY(-8px);
  transition: opacity 0.5s ease, max-height 0.5s ease, transform 0.5s ease, margin 0.5s ease;
  overflow: hidden;
  text-align: left;
  border-left: 2px solid transparent;
}

.size-dynamic-msg.is-visible {
  opacity: 1;
  max-height: 48px;
  transform: translateY(0);
  margin-bottom: 16px;
}

.size-dynamic-msg.msg-empty {
  color: var(--text-muted);
  border-left-color: rgba(255, 255, 255, 0.1);
  padding-left: 10px;
}

.size-dynamic-msg.msg-success {
  color: var(--text-primary);
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(0, 174, 239, 0.08), transparent 80%);
  padding: 8px 12px;
  border-radius: 0 6px 6px 0;
}

.size-dynamic-msg.msg-warning {
  color: var(--text-primary);
  border-left-color: #ff9d00;
  background: linear-gradient(90deg, rgba(255, 157, 0, 0.08), transparent 80%);
  padding: 8px 12px;
  border-radius: 0 6px 6px 0;
}

.config-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.config-choice-tile {
  position: relative;
  min-width: 0;
}

.config-choice-card {
  position: relative;
  width: 100%;
  min-height: 138px;
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 15px 16px 14px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(0, 0, 0, 0.06));
  color: var(--text-secondary);
  text-align: left;
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    background var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base);
  will-change: transform;
}

.config-choice-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 174, 239, 0.18);
  color: var(--text-primary);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.16);
}

.size-btn {
  min-height: 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 14px 18px;
  text-align: left;
}

.size-btn .choice-card-top {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
}

.size-btn .choice-card-title {
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.size-rec-box {
  display: grid;
  gap: 4px;
  margin-top: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.6s ease, opacity 0.6s ease, margin-top 0.4s ease;
}

.size-rec-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.size-rec-copy {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.config-choice-card.size-btn.rec-primary {
  border-color: rgba(0, 174, 239, 0.4);
  background:
    radial-gradient(circle at top left, rgba(0, 174, 239, 0.16), transparent 50%),
    linear-gradient(180deg, rgba(0, 174, 239, 0.08), rgba(255, 255, 255, 0.03));
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(0, 174, 239, 0.2);
}

.config-choice-card.size-btn.rec-primary .size-rec-box {
  max-height: 140px;
  opacity: 1;
  margin-top: 10px;
}

.config-choice-card.size-btn.rec-primary .size-rec-title {
  color: var(--cyan);
}

.config-choice-card.size-btn.rec-secondary:not(.active) {
  border-color: rgba(255, 255, 255, 0.18);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(0, 0, 0, 0.08));
}

.config-choice-card.size-btn.rec-secondary .size-rec-box {
  max-height: 140px;
  opacity: 1;
  margin-top: 10px;
}

.config-choice-card.size-btn.rec-secondary .size-rec-title {
  color: var(--text-muted);
}

.config-choice-card.size-btn.rec-secondary.active .size-rec-title {
  color: var(--cyan);
}

.config-choice-card.size-btn.active {
  border-color: rgba(0, 174, 239, 0.45);
  background:
    radial-gradient(circle at top right, rgba(0, 174, 239, 0.18), transparent 42%),
    linear-gradient(180deg, rgba(0, 174, 239, 0.14), rgba(15, 20, 26, 0.94));
  color: var(--text-primary);
  box-shadow: 
    0 22px 52px rgba(0, 0, 0, 0.32),
    0 0 0 1px rgba(0, 174, 239, 0.26);
  transform: translateY(-2px);
  z-index: 2;
}

.config-choice-card.disabled,
.config-choice-card:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.choice-card-top {
  display: grid;
  gap: 8px;
  align-content: start;
}

.choice-card-title {
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.28;
  color: var(--text-primary);
}

.choice-card-meta {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--cyan);
}

.choice-card-copy {
  max-width: 34ch;
  font-size: 0.81rem;
  line-height: 1.58;
  color: var(--text-secondary);
}

#config-step-material {
  overflow: hidden;
  padding-top: 14px;
  gap: 12px;
}

#config-step-material .config-step-head {
  gap: 4px;
}

.config-material-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: start;
}

.config-material-selector {
  display: grid;
  align-content: start;
}

.config-choice-grid.config-choice-grid-material {
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 4px;
}

.config-material-layout .config-choice-card {
  min-height: 56px;
  gap: 0;
  padding: 10px 15px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: 18px;
  overflow: hidden;
}

.config-material-layout .config-choice-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(115, 220, 255, 0.68), rgba(115, 220, 255, 0));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.config-material-layout .config-choice-card:hover,
.config-material-layout .config-choice-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(93, 203, 255, 0.22);
  box-shadow: 0 16px 28px rgba(0, 0, 0, 0.2);
}

.config-material-layout .config-choice-card.selection-active {
  border-color: rgba(93, 203, 255, 0.34);
  background:
    radial-gradient(circle at top right, rgba(76, 181, 255, 0.2), transparent 36%),
    linear-gradient(180deg, rgba(14, 27, 40, 0.96), rgba(8, 16, 25, 0.9));
  box-shadow:
    0 18px 34px rgba(0, 0, 0, 0.26),
    inset 0 0 0 1px rgba(135, 225, 255, 0.06);
}

.config-material-layout .config-choice-card.active::before {
  opacity: 1;
}

.config-material-layout .choice-card-copy {
  max-width: 28ch;
  font-size: 0.83rem;
  line-height: 1.66;
}

.config-material-showcase {
  position: relative;
  min-width: 0;
  width: 100%;
  padding: 20px 24px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(9, 18, 28, 0.94), rgba(5, 11, 17, 0.98)),
    radial-gradient(circle at top right, rgba(55, 153, 222, 0.18), transparent 42%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 24px 48px rgba(0, 0, 0, 0.24);
  isolation: isolate;
  display: flex;
  flex-direction: column;
}

.config-material-stage {
  display: grid;
}

.config-material-state {
  grid-area: 1 / 1;
  display: grid;
  gap: 12px;
  align-content: start;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(10px) scale(0.985);
  transition:
    opacity 240ms ease,
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0s linear 320ms;
}

.config-material-state.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
  transition-delay: 0s;
}

.config-material-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  text-align: center;
}

.config-material-kicker,
.config-material-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.config-material-kicker {
  margin: 0;
  color: var(--cyan);
}

.config-material-name {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.config-material-headline,
.config-material-info-copy {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.68;
  color: var(--text-secondary);
}

.config-material-quick-points {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.config-material-quick-pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border: 1px solid rgba(101, 201, 255, 0.14);
  border-radius: 999px;
  background: rgba(17, 35, 50, 0.68);
  font-size: 0.74rem;
  color: #a4dfff;
}

.config-material-nav-controls {
  margin-top: 14px;
  display: flex;
}

.config-material-next-btn {
  width: 100%;
  justify-content: center;
  margin: 0;
}

.config-material-info-block,
.config-material-recommendation {
  display: grid;
  gap: 10px;
  padding: 14px 15px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.02);
}

.config-material-info-block-muted {
  background: linear-gradient(180deg, rgba(255, 204, 112, 0.06), rgba(255, 255, 255, 0.015));
  border-color: rgba(255, 204, 112, 0.12);
}

.config-material-recommendation {
  background: linear-gradient(180deg, rgba(76, 181, 255, 0.09), rgba(255, 255, 255, 0.015));
  border-color: rgba(76, 181, 255, 0.14);
}

.config-material-label {
  color: #9bdfff;
}

.config-material-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.config-material-list li {
  position: relative;
  padding-left: 16px;
  font-size: 0.83rem;
  line-height: 1.62;
  color: var(--text-secondary);
}

.config-material-list li::before {
  content: "";
  position: absolute;
  top: 0.56rem;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(118, 223, 255, 0.9);
  box-shadow: 0 0 10px rgba(70, 176, 241, 0.3);
}

#config-step-version {
  overflow: hidden;
}

.config-version-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: start;
}

.config-version-selector {
  display: grid;
  align-content: start;
}

.config-choice-grid.config-choice-grid-version {
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 4px;
}

.config-version-layout .config-choice-card {
  min-height: 56px;
  gap: 4px;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: 18px;
  overflow: hidden;
}

.config-version-layout .config-choice-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(115, 220, 255, 0.68), rgba(115, 220, 255, 0));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.config-version-layout .config-choice-card:hover,
.config-version-layout .config-choice-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(93, 203, 255, 0.22);
  box-shadow: 0 16px 28px rgba(0, 0, 0, 0.2);
}

.config-version-layout .config-choice-card.selection-active {
  border-color: rgba(93, 203, 255, 0.34);
  background:
    radial-gradient(circle at top right, rgba(76, 181, 255, 0.2), transparent 36%),
    linear-gradient(180deg, rgba(14, 27, 40, 0.96), rgba(8, 16, 25, 0.9));
  box-shadow:
    0 18px 34px rgba(0, 0, 0, 0.26),
    inset 0 0 0 1px rgba(135, 225, 255, 0.06);
}

.config-version-layout .config-choice-card.active::before {
  opacity: 1;
}

.config-version-layout .choice-card-copy {
  max-width: 30ch;
  font-size: 0.83rem;
  line-height: 1.66;
}

.config-version-showcase {
  position: relative;
  min-width: 0;
  width: 100%;
  padding: 20px 24px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(9, 18, 28, 0.94), rgba(5, 11, 17, 0.98)),
    radial-gradient(circle at top right, rgba(55, 153, 222, 0.18), transparent 42%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 24px 48px rgba(0, 0, 0, 0.24);
  isolation: isolate;
  display: flex;
  flex-direction: column;
}

.config-version-stage {
  display: grid;
}

.config-version-state {
  grid-area: 1 / 1;
  display: grid;
  gap: 12px;
  align-content: start;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(10px) scale(0.985);
  transition:
    opacity 240ms ease,
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0s linear 320ms;
}

.config-version-state.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
  transition-delay: 0s;
}

.config-version-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  text-align: center;
}

.config-version-kicker,
.config-version-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.config-version-kicker {
  margin: 0;
  color: var(--cyan);
}

.config-version-visual {
  width: min(100%, 430px);
  margin: 0;
  display: grid;
  place-items: center;
  padding: 10px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

.config-version-visual img {
  display: block;
  width: 100%;
  max-height: 190px;
  object-fit: contain;
}



#config-step-addons {
  overflow: hidden;
}

.config-addons-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.1fr);
  gap: 18px;
  align-items: start;
}

.config-addons-selector {
  display: grid;
  gap: 12px;
  align-content: start;
}

.config-addons-showcase {
  position: relative;
  min-width: 0;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(9, 18, 28, 0.94), rgba(5, 11, 17, 0.98)),
    radial-gradient(circle at top right, rgba(55, 153, 222, 0.18), transparent 42%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 24px 48px rgba(0, 0, 0, 0.24);
  isolation: isolate;
}

.config-addons-showcase::before {
  content: "";
  position: absolute;
  inset: 18px 18px auto auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(80, 197, 255, 0.16) 0%, rgba(80, 197, 255, 0) 72%);
  filter: blur(18px);
  opacity: 0.9;
  pointer-events: none;
}

.config-addons-showcase.is-swapping .config-addons-content {
  opacity: 0.72;
  transform: translateY(4px);
}

.config-addons-visual {
  position: relative;
  min-height: 290px;
  display: grid;
  place-items: center;
  border-radius: 22px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 46%, rgba(71, 185, 255, 0.14), rgba(71, 185, 255, 0.02) 34%, transparent 68%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
}

.config-addons-visual::before {
  content: "";
  position: absolute;
  inset: 10% 12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(77, 178, 243, 0.18) 0%, rgba(77, 178, 243, 0.03) 42%, rgba(77, 178, 243, 0) 72%);
  filter: blur(22px);
  opacity: 0.92;
}

.config-addons-visual img {
  position: relative;
  z-index: 1;
  width: min(100%, 470px);
  max-height: 278px;
  object-fit: contain;
  filter:
    drop-shadow(0 28px 44px rgba(0, 0, 0, 0.28))
    drop-shadow(0 10px 20px rgba(15, 89, 132, 0.18));
  transition: opacity 280ms ease, transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
}

.config-addons-content {
  display: grid;
  gap: 14px;
  align-content: start;
  transition:
    opacity 180ms ease,
    transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
}

.config-addons-kicker,
.config-addons-note-label,
.config-addons-tech-item span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.config-addons-kicker {
  margin: 0;
  color: var(--cyan);
}

.config-addons-name {
  margin: 0;
  font-size: 1.38rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.config-addons-headline,
.config-addons-copy,
.config-addons-note {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.68;
  color: var(--text-secondary);
}

.config-addons-benefits {
  display: grid;
  gap: 10px;
}

.config-addons-benefit {
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.config-addons-tech {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.config-addons-tech-item,
.config-addons-note-block,
.config-addons-recommendation {
  display: grid;
  gap: 10px;
  padding: 14px 15px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.02);
}

.config-addons-tech-item strong {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
}

.config-addons-note-block {
  background: linear-gradient(180deg, rgba(255, 204, 112, 0.06), rgba(255, 255, 255, 0.015));
  border-color: rgba(255, 204, 112, 0.12);
}

.config-addons-recommendation {
  background: linear-gradient(180deg, rgba(76, 181, 255, 0.09), rgba(255, 255, 255, 0.015));
  border-color: rgba(76, 181, 255, 0.14);
}

.config-addons-note-label,
.config-addons-tech-item span {
  color: #9bdfff;
}

.config-addon-card {
  overflow: hidden;
}

.config-addon-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(115, 220, 255, 0.68), rgba(115, 220, 255, 0));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.config-addon-card.is-selected {
  border-color: rgba(93, 203, 255, 0.32);
  background:
    radial-gradient(circle at top right, rgba(76, 181, 255, 0.16), transparent 34%),
    linear-gradient(180deg, rgba(14, 27, 40, 0.9), rgba(8, 16, 25, 0.84));
  box-shadow:
    0 18px 34px rgba(0, 0, 0, 0.26),
    inset 0 0 0 1px rgba(135, 225, 255, 0.06);
}

.config-addon-card.is-selected::before {
  opacity: 1;
}

.config-addon-card.is-selected .config-addon-copy strong {
  color: var(--text-primary);
}

.motor-radio-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.01);
  transition:
    border-color var(--transition-base),
    background var(--transition-base),
    transform var(--transition-base);
}

.motor-radio-option:hover {
  border-color: rgba(93, 203, 255, 0.18);
  transform: translateY(-1px);
}

.motor-radio-option.is-selected {
  border-color: rgba(93, 203, 255, 0.28);
  background:
    radial-gradient(circle at top right, rgba(76, 181, 255, 0.12), transparent 38%),
    rgba(11, 22, 33, 0.92);
  box-shadow: inset 0 0 0 1px rgba(135, 225, 255, 0.05);
}

.choice-badge-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 7px;
}

.choice-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid rgba(0, 174, 239, 0.2);
  background: rgba(0, 174, 239, 0.1);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: #9de2ff;
  white-space: normal;
}

.choice-badge-muted {
  border-color: rgba(245, 158, 11, 0.18);
  background: rgba(245, 158, 11, 0.08);
  color: #f8c674;
}

.config-side-card {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(0, 0, 0, 0.06)),
    var(--bg-card);
}

.config-side-kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.config-side-title {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
}

.config-side-copy {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.68;
  color: var(--text-secondary);
}

.config-assistant-points {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.config-assistant-point {
  padding: 11px 13px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.79rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.config-summary-list {
  display: grid;
  gap: 10px;
}

.config-summary-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
}

.config-summary-item span {
  font-size: 0.76rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.config-summary-item strong {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: right;
}

.config-summary-fit {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.81rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.config-notes-card .config-label {
  margin-bottom: 0;
}

.config-addon-card {
  position: relative;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(0, 0, 0, 0.06));
  transition:
    border-color var(--transition-base),
    background var(--transition-base),
    opacity var(--transition-base),
    transform var(--transition-base);
  will-change: transform;
}

.config-addon-card.upgrade-option,
.config-addon-card .upgrade-option {
  background: transparent;
  border: 0;
  padding: 0;
  margin: 0;
}

.config-addon-card.upgrade-option.is-selected {
  padding: 18px;
  border: 1px solid rgba(93, 203, 255, 0.32);
  border-radius: 20px;
  background:
    radial-gradient(circle at top right, rgba(76, 181, 255, 0.16), transparent 34%),
    linear-gradient(180deg, rgba(14, 27, 40, 0.9), rgba(8, 16, 25, 0.84));
  box-shadow:
    0 18px 34px rgba(0, 0, 0, 0.26),
    inset 0 0 0 1px rgba(135, 225, 255, 0.06);
}

.config-addon-card:hover {
  border-color: rgba(0, 174, 239, 0.16);
  transform: translateY(-1px);
}

.config-addon-card.disabled {
  opacity: 0.5;
}

.config-addon-label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.config-addon-copy {
  display: grid;
  gap: 8px;
  width: 100%;
  padding-right: 0;
}

.config-addon-copy strong {
  font-size: 0.98rem;
  line-height: 1.28;
  color: var(--text-primary);
}

.config-addon-copy small {
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--text-muted);
}

.upgrade-check {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.upgrade-checkmark {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 4px;
}

.motor-sub-options {
  max-height: 0;
  overflow: hidden;
  margin-top: 0;
  margin-left: 0;
  padding: 0;
  border-left: 0;
  transition: max-height var(--transition-base), margin-top var(--transition-base), padding var(--transition-base);
}

.motor-sub-options.open {
  max-height: 360px;
  margin-top: 14px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.14);
}

.motor-radio-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
}

.radio-label-text {
  font-size: 0.78rem;
}

.upgrade-compat-note {
  min-height: 1.5em;
  font-size: 0.79rem;
  line-height: 1.65;
  color: #f8c674;
  font-style: normal;
}

.config-addons-actions {
  display: grid;
  gap: 14px;
  margin-top: 8px;
  padding: 16px 17px 17px;
  border: 1px solid rgba(96, 205, 255, 0.09);
  border-radius: 20px;
  background:
    radial-gradient(circle at top right, rgba(63, 186, 255, 0.08), transparent 42%),
    linear-gradient(180deg, rgba(24, 30, 40, 0.92), rgba(15, 20, 28, 0.96));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 18px 34px rgba(0, 0, 0, 0.16);
}

.config-addons-next-note {
  margin: 0;
  max-width: 46ch;
  font-size: 0.79rem;
  line-height: 1.66;
  color: rgba(198, 208, 222, 0.82);
}

.config-addons-next-btn {
  justify-self: start;
  width: min(100%, 316px);
  min-height: 54px;
  padding: 0 20px;
  border-radius: 18px;
  border-color: rgba(86, 199, 255, 0.2);
  background:
    linear-gradient(180deg, rgba(20, 31, 43, 0.96), rgba(11, 18, 27, 0.96)),
    radial-gradient(circle at left center, rgba(0, 174, 239, 0.12), transparent 56%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 16px 30px rgba(0, 0, 0, 0.2);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #f3f7fb;
  justify-content: center;
  text-align: center;
  transition: all 0.3s ease;
}

.config-next-btn,
.config-addons-next-btn,
.config-notes-next-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: min(100%, 316px);
  min-height: 54px;
  padding: 0 1.8rem;
  border: 1px solid var(--info-border-strong);
  border-radius: 14px;
  background: rgba(95, 201, 255, 0.03);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--info-accent);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  opacity: 0.35;
  pointer-events: none;
  text-align: center;
  justify-self: start;
}

.config-next-btn:not(:disabled),
.config-addons-next-btn:not(:disabled),
.config-notes-next-btn:not(:disabled) {
  opacity: 1;
  pointer-events: auto;
  border-color: var(--info-accent);
  background: rgba(95, 201, 255, 0.12);
  box-shadow: 0 12px 24px rgba(0, 174, 239, 0.15);
  animation: next-btn-pulse 2s infinite ease-in-out;
}

.config-next-btn.is-locked,
.config-addons-next-btn.is-locked,
.config-notes-next-btn.is-locked {
  opacity: 0.25;
  filter: grayscale(1);
  animation: none;
  cursor: not-allowed;
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: none;
}

@keyframes next-btn-pulse {
  0% { box-shadow: 0 12px 24px rgba(0, 174, 239, 0.15); }
  50% { box-shadow: 0 12px 32px rgba(0, 174, 239, 0.25); border-color: #76dfff; }
  100% { box-shadow: 0 12px 24px rgba(0, 174, 239, 0.15); }
}

.config-next-btn:hover:not(:disabled),
.config-addons-next-btn:hover:not(:disabled),
.config-notes-next-btn:hover:not(:disabled) {
  background: var(--info-accent);
  color: #ffffff;
  transform: translateY(-2px);
  animation: none;
}

.config-next-btn svg,
.config-addons-next-btn svg,
.config-notes-next-btn svg {
  transition: transform 0.3s ease;
}

.config-next-btn:hover svg,
.config-addons-next-btn:hover svg,
.config-notes-next-btn:hover svg {
  transform: translateX(4px);
}

.config-addons-next-btn::before {
  display: none;
}

.config-choice-card.active::after {
  content: "→";
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  font-size: 1.1rem;
  color: var(--info-accent);
  opacity: 0.8;
  animation: choice-arrow-slide 1.5s infinite ease-in-out;
}

@keyframes choice-arrow-slide {
  0% { transform: translateX(0); opacity: 0.4; }
  50% { transform: translateX(4px); opacity: 1; }
  100% { transform: translateX(0); opacity: 0.4; }
}

.config-addons-next-btn::before {
  background: linear-gradient(135deg, rgba(110, 214, 255, 0.16), rgba(110, 214, 255, 0.02) 56%, transparent 78%);
  opacity: 1;
}

.config-addons-next-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  border-color: rgba(118, 223, 255, 0.34);
  background:
    linear-gradient(180deg, rgba(24, 37, 50, 0.98), rgba(12, 20, 30, 0.98)),
    radial-gradient(circle at left center, rgba(0, 174, 239, 0.18), transparent 60%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 22px 38px rgba(0, 0, 0, 0.24),
    0 0 0 1px rgba(88, 206, 255, 0.05);
}

.config-addons-next-btn:active:not(:disabled) {
  transform: translateY(0) scale(0.985);
}

.config-addons-next-btn:disabled {
  opacity: 0.5;
  border-color: rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(180deg, rgba(22, 27, 35, 0.9), rgba(15, 19, 27, 0.94)),
    rgba(255, 255, 255, 0.02);
  box-shadow: none;
  cursor: not-allowed;
}

.config-footer-note {
  margin: 0;
  font-size: 0.79rem;
  line-height: 1.68;
  color: var(--text-secondary);
}

.configurator-footer {
  position: static;
  width: 100%;
  max-height: 0;
  opacity: 0;
  visibility: hidden;
  overflow: hidden;
  pointer-events: none;
  padding: 0;
  margin-top: 0;
  border-top: 0;
  transform: translate3d(0, 18px, 0);
  transition:
    max-height 360ms ease,
    opacity 220ms ease,
    transform 280ms cubic-bezier(0.16, 1, 0.3, 1),
    visibility 0s linear 280ms;
}

.configurator-footer.is-ready {
  max-height: 1400px;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  overflow: visible;
  margin-top: 2px;
  transform: translate3d(0, 0, 0);
  transition-delay: 0s;
}

.configurator-closing {
  display: grid;
  gap: 12px;
  opacity: 0;
  transform: translate3d(0, 10px, 0);
  transition: opacity 220ms ease, transform 280ms cubic-bezier(0.16, 1, 0.3, 1);
}

.configurator-closing.is-ready {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.configurator-closing-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.configurator-closing-title {
  margin: 0;
  font-size: 1.22rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-primary);
}

.configurator-closing-body {
  margin: 0;
  max-width: 58ch;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.configurator-order-panel {
  display: grid;
  gap: 16px;
  padding: 20px;
  border: 1px solid rgba(0, 174, 239, 0.14);
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(0, 174, 239, 0.1), transparent 42%),
    linear-gradient(180deg, rgba(23, 29, 37, 0.98), rgba(14, 18, 24, 0.98));
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.26);
}

.configurator-order-top {
  display: grid;
  gap: 14px;
  align-items: start;
}

.configurator-order-heading {
  display: grid;
  gap: 8px;
}

.configurator-order-topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.configurator-order-codewrap {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.028), rgba(255, 255, 255, 0.012));
}

.configurator-order-code-label,
.configurator-section-kicker,
.configurator-tech-item span {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.configurator-order-code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text-primary);
  word-break: break-word;
}

.configurator-summary-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.02);
  transition:
    color var(--transition-base),
    border-color var(--transition-base),
    background var(--transition-base),
    transform var(--transition-base);
}

.configurator-summary-close:hover {
  color: var(--text-primary);
  border-color: rgba(0, 174, 239, 0.18);
  background: rgba(0, 174, 239, 0.08);
  transform: translateY(-1px);
}

.configurator-order-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.config-order-item {
  display: grid;
  gap: 7px;
  min-height: 86px;
  padding: 14px 15px;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(29, 35, 44, 0.96), rgba(20, 25, 33, 0.96));
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.config-order-item span {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.config-order-item strong {
  font-size: 0.94rem;
  line-height: 1.45;
  color: var(--text-primary);
}

.config-order-item-wide {
  grid-column: 1 / -1;
}

.configurator-tech-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.configurator-tech-item {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(16, 21, 28, 0.96);
}

.configurator-tech-item strong {
  font-size: 0.96rem;
  line-height: 1.4;
  color: var(--cyan-bright);
}

.configurator-fit-panel,
.configurator-addon-panel {
  display: grid;
  gap: 10px;
  padding: 15px 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(180deg, rgba(20, 26, 34, 0.96), rgba(15, 20, 27, 0.96));
}

.configurator-section-head {
  display: grid;
  gap: 4px;
}

.configurator-section-title {
  margin: 0;
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-primary);
}

.configurator-fit-copy,
.configurator-addon-copy {
  margin: 0;
  font-size: 0.83rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.configurator-addon-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.configurator-addon-tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 11px;
  border-radius: 999px;
  border: 1px solid rgba(0, 174, 239, 0.18);
  background: rgba(0, 174, 239, 0.08);
  color: var(--cyan-bright);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.configurator-closing-actions {
  display: grid;
  gap: 12px;
  padding: 0 4px;
}

.configurator-quote-strip {
  display: grid;
  gap: 14px;
  padding: 16px 17px;
  border-radius: 20px;
  border: 1px solid rgba(0, 174, 239, 0.14);
  background:
    linear-gradient(180deg, rgba(17, 64, 88, 0.96), rgba(16, 31, 41, 0.98));
}

.configurator-quote-copyblock {
  display: grid;
  gap: 6px;
}

.configurator-quote-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
}

.configurator-quote-copy {
  margin: 0;
  max-width: 52ch;
  font-size: 0.82rem;
  line-height: 1.68;
  color: var(--text-secondary);
}

.configurator-quote-email {
  display: grid;
  gap: 7px;
}

.configurator-quote-email span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.configurator-quote-email input {
  width: 100%;
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 10px 13px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  font: inherit;
}

.configurator-quote-email input::placeholder {
  color: rgba(255, 255, 255, 0.38);
}

.configurator-quote-email input:focus {
  outline: none;
  border-color: rgba(0, 174, 239, 0.62);
  box-shadow: 0 0 0 3px rgba(0, 174, 239, 0.12);
}

.configurator-quote-status {
  min-height: 18px;
  margin: 0;
  font-size: 0.78rem;
  color: var(--cyan-bright);
}

.configurator-quote-status.is-success {
  color: #70f0a0;
}

.configurator-quote-status.is-error {
  color: #ff8a8a;
}

.configurator-action-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 10px;
}

.configurator-closing-actions .config-quote-btn,
.configurator-closing-actions .config-edit-btn {
  width: 100%;
  min-width: 0;
}

.config-quote-btn:disabled {
  opacity: 0.48;
  cursor: not-allowed;
  box-shadow: none;
}

.config-quote-btn:disabled:hover {
  transform: none;
}

.configurator-closing .config-quote-btn {
  margin: 0;
}

.config-help-link {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 2px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.config-help-link:hover {
  color: var(--cyan-bright);
  transform: translateX(2px);
}

@media (max-width: 1180px) {
  .configurator-shell {
    grid-template-columns: 1fr;
  }

  .configurator-sidebar {
    position: static;
    order: -1;
  }

  .configurator-footer.is-ready {
    width: 100%;
    max-height: 1400px;
  }
}

@media (max-width: 768px) {
  .configurator-header {
    padding: 18px 18px 16px;
  }

  .config-edit-modal-layer {
    align-items: end;
    padding: 14px;
  }

  .config-edit-modal {
    width: 100%;
    max-height: min(82vh, 760px);
    padding: 18px;
    border-radius: 22px 22px 18px 18px;
  }

  .configurator-stepper {
    padding: 0 18px 16px;
    overflow-x: auto;
    grid-template-columns: repeat(5, minmax(160px, 1fr));
    scrollbar-width: none;
  }

  .configurator-stepper::-webkit-scrollbar {
    display: none;
  }

  .configurator-body {
    padding: 16px 18px 18px;
  }

  .config-choice-grid {
    grid-template-columns: 1fr;
  }

  .config-step-panel,
  .config-side-card {
    padding: 15px;
    border-radius: 16px;
  }

  .config-choice-card {
    min-height: 144px;
    padding: 16px 16px 15px;
  }

  .configurator-order-grid {
    grid-template-columns: 1fr;
  }

  .configurator-tech-strip {
    grid-template-columns: 1fr;
  }

  .configurator-closing-actions {
    gap: 12px;
  }

  .configurator-action-row,
  .config-addons-next-btn {
    grid-template-columns: 1fr;
  }

  .configurator-closing-actions .config-quote-btn,
  .configurator-closing-actions .config-edit-btn,
  .config-addons-next-btn {
    width: 100%;
    justify-content: center;
  }

  .configurator-footer.is-ready {
    width: 100%;
  }
}

@media (max-width: 540px) {
  .configurator-panel {
    width: 100vw;
  }

  .config-edit-modal-layer {
    padding: 10px;
  }

  .config-edit-modal {
    gap: 16px;
    width: 100%;
    padding: 16px;
    border-radius: 20px 20px 16px 16px;
  }

  .config-edit-option {
    padding: 14px;
    border-radius: 16px;
  }

  .config-edit-option-value {
    font-size: 0.88rem;
  }

  .configurator-stepper {
    padding: 0 14px 14px;
  }

  .configurator-body {
    padding: 14px;
  }

  .config-step {
    min-height: 56px;
    padding: 10px;
  }

  .config-step-copy strong {
    font-size: 0.76rem;
  }

  .config-step-copy small {
    font-size: 0.68rem;
  }

  .config-step-panel,
  .config-side-card {
    padding: 14px;
  }

  .choice-badge-row {
    justify-content: flex-start;
  }

  .configurator-footer {
    margin-top: 0;
  }

  .configurator-footer.is-ready {
    width: 100%;
    max-height: 1400px;
  }

  .configurator-order-panel {
    padding: 14px;
    border-radius: 16px;
  }

  .configurator-tech-item,
  .configurator-fit-panel,
  .configurator-addon-panel,
  .config-addons-actions {
    padding: 14px;
    border-radius: 16px;
  }

  .configurator-quote-strip {
    padding: 14px;
    border-radius: 16px;
  }

  .configurator-order-topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .configurator-summary-close {
    align-self: flex-end;
  }

  .config-help-link {
    justify-self: stretch;
  }
}

/* Configurator Layout Refinement */
.configurator-panel {
  width: min(1240px, 100vw);
}

.configurator-body {
  padding: 14px 24px 24px;
}

.configurator-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1.25fr) minmax(270px, 0.82fr);
  grid-template-areas: "rail main side";
  gap: 18px;
  align-items: start;
}

.configurator-rail {
  grid-area: rail;
  min-width: 0;
  position: sticky;
  top: 0;
  align-self: start;
}

.configurator-main {
  grid-area: main;
  min-width: 0;
  display: grid;
  gap: 16px;
  align-content: start;
}

.configurator-sidebar {
  grid-area: side;
  min-width: 0;
  display: grid;
  gap: 12px;
  position: sticky;
  top: 0;
  align-self: start;
}

.configurator-rail-card {
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(0, 0, 0, 0.06)),
    var(--bg-card);
}

.config-rail-kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.configurator-stepper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 0;
  border-bottom: 0;
}

.config-step {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 10px 14px;
  border-radius: 14px;
  background: transparent;
  border: 1px solid transparent;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  text-align: left;
}

.config-step::after {
  content: "";
  position: absolute;
  left: 31px;
  top: 40px;
  bottom: -20px;
  width: 1px;
  background: rgba(255, 255, 255, 0.06);
  z-index: 1;
  transition: background 0.4s ease;
}

.config-step:last-child::after {
  display: none;
}

.config-step-index {
  position: relative;
  z-index: 2;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  transition: all 0.4s ease;
}

.index-check {
  display: none;
  font-size: 0.8rem;
}

.config-step-copy {
  display: grid;
  gap: 2px;
}

.config-step-copy strong {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text-muted);
  transition: color 0.4s ease;
}

.config-step-value {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--cyan);
  margin: 1px 0;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: all 0.4s ease;
}

.config-step-copy small {
  font-size: 0.68rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.3);
  transition: color 0.4s ease;
}

/* --- STATES --- */

/* 1. ACTIVE */
.config-step.is-current {
  background: rgba(0, 174, 239, 0.05);
  border-color: rgba(0, 174, 239, 0.15);
  transform: translateX(4px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.config-step.is-current .config-step-index {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #000;
  box-shadow: 0 0 15px rgba(0, 174, 239, 0.4);
}

.config-step.is-current .config-step-copy strong {
  color: var(--text-primary);
}

.config-step.is-current .config-step-copy small {
  color: var(--text-secondary);
}

/* 2. COMPLETED */
.config-step.is-complete .config-step-index {
  background: rgba(0, 174, 239, 0.1);
  border-color: rgba(0, 174, 239, 0.3);
  color: var(--cyan);
}

.config-step.is-complete .index-num { display: none; }
.config-step.is-complete .index-check { display: block; }

.config-step.is-complete .config-step-copy strong {
  color: var(--text-primary);
  font-size: 0.72rem;
  opacity: 0.6;
}

.config-step.is-complete .config-step-value {
  opacity: 1;
  max-height: 24px;
  margin-bottom: 2px;
}

.config-step.is-complete .config-step-copy small {
  display: none;
}

.config-step.is-complete::after {
  background: var(--cyan);
  opacity: 0.3;
}

/* 3. PENDING / LOCKED */
.config-step.is-locked {
  opacity: 0.4;
  cursor: not-allowed;
}

.config-step.is-locked .config-step-index {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.2);
}

.config-step:hover:not(.is-locked) {
  background: rgba(255, 255, 255, 0.02);
}

.config-step.is-optional .config-step-copy small {
  color: #99adc0;
}

.config-step-panel {
  gap: 16px;
  padding: 24px;
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(0, 174, 239, 0.05), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.028), rgba(0, 0, 0, 0.08)),
    var(--bg-card);
}

.config-step-panel.is-active {
  animation: config-panel-in 280ms cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes config-panel-in {
  from {
    opacity: 0;
    transform: translate3d(0, 10px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.config-step-head {
  display: grid;
  gap: 12px;
}

.config-step-title {
  font-size: 1.42rem;
}

.config-step-copy-text {
  max-width: 60ch;
  font-size: 0.88rem;
  line-height: 1.68;
}

#config-step-size {
  overflow: hidden;
  padding-top: 14px;
  gap: 12px;
}

#config-step-size .config-step-head {
  gap: 4px;
}

.config-size-layout {
  display: grid;
  grid-template-columns: minmax(248px, 0.72fr) minmax(0, 1.28fr);
  gap: 18px;
  align-items: stretch;
}

.config-size-selector {
  display: grid;
  align-content: start;
}

.config-size-showcase {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 16px 20px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(9, 18, 28, 0.94), rgba(5, 11, 17, 0.98)),
    radial-gradient(circle at top right, rgba(55, 153, 222, 0.18), transparent 42%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 24px 48px rgba(0, 0, 0, 0.24);
  isolation: isolate;
}

.config-size-showcase::before {
  content: "";
  position: absolute;
  inset: 18px auto auto 18px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(80, 197, 255, 0.16) 0%, rgba(80, 197, 255, 0) 72%);
  filter: blur(18px);
  opacity: 0.9;
  pointer-events: none;
}

.config-size-visual {
  position: relative;
  min-height: auto;
  height: 140px;
  display: grid;
  place-items: center;
  margin-bottom: 8px;
  border-radius: 20px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 46%, rgba(71, 185, 255, 0.14), rgba(71, 185, 255, 0.02) 34%, transparent 68%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
}

.config-size-visual::before {
  content: "";
  position: absolute;
  inset: 10% 12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(77, 178, 243, 0.18) 0%, rgba(77, 178, 243, 0.03) 42%, rgba(77, 178, 243, 0) 72%);
  filter: blur(22px);
  opacity: 0.92;
}

.config-size-visual img {
  position: relative;
  z-index: 1;
  width: min(100%, 380px);
  max-height: 120px;
  object-fit: contain;
  filter:
    drop-shadow(0 24px 40px rgba(0, 0, 0, 0.26))
    drop-shadow(0 8px 18px rgba(15, 89, 132, 0.15));
}

.config-size-calculator {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 10px;
}

.config-size-input-row {
  display: flex;
  gap: 12px;
}

.config-size-published-metrics .config-info-item {
  padding: 10px 12px;
  border-radius: 10px;
}

.size-input-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.size-input-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  line-height: 1;
}

.size-calc-input {
  width: 100%;
  height: 36px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: 0.85rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.size-calc-input:focus {
  outline: none;
  border-color: rgba(34, 191, 255, 0.4);
  box-shadow: 0 0 0 4px rgba(34, 191, 255, 0.1);
}

.size-calc-input::placeholder {
  color: rgba(255, 255, 255, 0.2);
}

.size-dynamic-msg {
  display: block;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 0.81rem;
  line-height: 1.5;
  color: var(--text-primary);
  margin-top: 0;
  transition: max-height 0.3s ease, opacity 0.3s ease, margin-top 0.3s ease;
}

.size-dynamic-msg.is-visible:not(.msg-empty) {
  max-height: 48px;
  opacity: 1;
  margin-top: 10px;
}

.size-dynamic-msg.msg-success {
  color: var(--cyan);
}

.size-dynamic-msg.msg-warning {
  color: #ffb86c;
}
.config-size-nav-controls {
  margin-top: 14px;
  display: flex;
}

.config-size-next-btn {
  width: 100%;
  justify-content: center;
  margin: 0;
}

.config-size-content {
  display: grid;
  gap: 14px;
  align-content: start;
}

.config-size-kicker,
.config-size-info-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.config-size-kicker {
  margin: 0;
  color: var(--cyan);
}

.config-size-name {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.3;
  color: var(--text-primary);
}

.config-size-headline {
  margin: 0;
  max-width: 60ch;
  font-size: 0.84rem;
  line-height: 1.68;
  color: var(--text-secondary);
}

.config-size-info-grid {
  display: grid;
  gap: 10px;
}

.config-size-info-card {
  display: grid;
  gap: 8px;
  padding: 14px 15px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.02);
}

.config-size-info-card-highlight {
  background: linear-gradient(180deg, rgba(76, 181, 255, 0.09), rgba(255, 255, 255, 0.015));
  border-color: rgba(76, 181, 255, 0.14);
}

.config-size-info-label {
  color: #9bdfff;
}

.config-size-info-copy {
  margin: 0;
  font-size: 0.81rem;
  line-height: 1.62;
  color: var(--text-secondary);
}

.config-size-metrics,
.config-info-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.config-info-item {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.02);
}

.config-info-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.config-info-value {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
}

.config-choice-grid {
  gap: 12px;
}

.config-choice-grid.config-choice-grid-size {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

#config-step-size .size-btn {
  min-height: 88px;
  align-content: center;
  gap: 0;
  padding: 11px 14px;
  border-radius: 16px;
}

#config-step-size .size-btn .choice-card-top {
  gap: 0;
}

#config-step-size .size-btn .choice-card-title {
  font-size: 0.95rem;
  line-height: 1.18;
}

.config-choice-card {
  min-height: 120px;
  gap: 8px;
  padding: 14px;
  border-radius: 17px;
}

.choice-card-top {
  gap: 5px;
}

.choice-card-title {
  font-size: 0.94rem;
}

.choice-card-meta {
  font-size: 0.66rem;
  letter-spacing: 0.11em;
}

.choice-card-copy {
  max-width: none;
  font-size: 0.78rem;
  line-height: 1.54;
}

.choice-badge-row {
  gap: 6px;
}

.choice-badge {
  min-height: 22px;
  padding: 0 9px;
  font-size: 0.56rem;
}

.config-side-card {
  padding: 14px 15px;
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.022), rgba(0, 0, 0, 0.05)),
    rgba(18, 22, 28, 0.96);
}

.config-side-kicker {
  margin-bottom: 6px;
  font-size: 0.64rem;
}

.config-side-title {
  margin-bottom: 6px;
  font-size: 0.96rem;
}

.config-side-copy {
  font-size: 0.8rem;
  line-height: 1.62;
}

.config-assistant-points {
  gap: 7px;
  margin-top: 12px;
}

.config-assistant-point {
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 0.76rem;
  line-height: 1.58;
}

.configurator-layout[data-step-mode="visual"] {
  grid-template-columns: 220px minmax(0, 1.92fr);
  grid-template-areas: "rail main";
  gap: 18px;
}

.configurator-main[data-step-mode="visual"] {
  gap: 18px;
}

.configurator-sidebar[data-step-mode="visual"] {
  display: none;
}

.configurator-main[data-step-mode="visual"] .config-material-layout,
.configurator-main[data-step-mode="visual"] .config-version-layout,
.configurator-main[data-step-mode="visual"] .config-addons-layout {
  gap: 22px;
}

.configurator-main[data-step-mode="visual"] .config-material-layout,
.configurator-main[data-step-mode="visual"] .config-version-layout {
  grid-template-columns: minmax(252px, 0.7fr) minmax(0, 1.3fr);
  align-items: stretch;
}

.configurator-main[data-step-mode="visual"] .config-addons-layout {
  grid-template-columns: minmax(312px, 0.82fr) minmax(0, 1.18fr);
  align-items: stretch;
}

.configurator-main[data-step-mode="visual"] .config-material-showcase,
.configurator-main[data-step-mode="visual"] .config-version-showcase,
.configurator-main[data-step-mode="visual"] .config-addons-showcase {
  padding: 28px;
  border-radius: 30px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 28px 56px rgba(0, 0, 0, 0.28);
}

.configurator-main[data-step-mode="visual"] .config-material-state,
.configurator-main[data-step-mode="visual"] .config-version-state {
  gap: 20px;
}

.configurator-main[data-step-mode="visual"] .config-addons-content {
  gap: 16px;
}

.configurator-main[data-step-mode="visual"] .config-material-visual,
.configurator-main[data-step-mode="visual"] .config-version-visual,
.configurator-main[data-step-mode="visual"] .config-addons-visual {
  min-height: 330px;
}

.configurator-main[data-step-mode="visual"] .config-material-visual img,
.configurator-main[data-step-mode="visual"] .config-version-visual img,
.configurator-main[data-step-mode="visual"] .config-addons-visual img {
  width: min(100%, 500px);
  max-height: 304px;
}

.configurator-main[data-step-mode="visual"] .config-version-visual {
  min-height: 190px;
}

.configurator-main[data-step-mode="visual"] .config-version-visual img {
  width: min(100%, 430px);
  max-height: 190px;
}

.configurator-sidebar[data-step-mode="assistant"] .config-assistant-card {
  border-color: rgba(0, 174, 239, 0.12);
  background:
    radial-gradient(circle at top right, rgba(0, 174, 239, 0.08), transparent 50%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.026), rgba(0, 0, 0, 0.05)),
    rgba(18, 22, 28, 0.97);
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.16);
}

.configurator-sidebar[data-step-mode="assistant"] .config-assistant-card .config-side-title {
  font-size: 1rem;
}

.configurator-sidebar[data-step-mode="assistant"] .config-assistant-card .config-side-copy {
  font-size: 0.81rem;
  line-height: 1.64;
}

.configurator-sidebar[data-step-mode="assistant"] .config-assistant-card .config-assistant-point {
  border-color: rgba(83, 191, 255, 0.08);
  background: rgba(255, 255, 255, 0.028);
}

.configurator-layout[data-current-step="size"] {
  grid-template-columns: 220px minmax(0, 1.92fr);
  grid-template-areas: "rail main";
  gap: 18px;
}

.configurator-sidebar[data-current-step="size"] {
  display: none;
}

.configurator-main[data-current-step="size"] {
  gap: 18px;
}

.configurator-main[data-current-step="size"] .config-size-layout {
  grid-template-columns: minmax(236px, 0.66fr) minmax(0, 1.34fr);
  gap: 22px;
}

.configurator-main[data-current-step="size"] .config-size-showcase {
  padding: 28px;
  border-radius: 30px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 28px 56px rgba(0, 0, 0, 0.28);
}

.configurator-main[data-current-step="size"] .config-size-visual {
  min-height: 306px;
  margin-bottom: 20px;
}

.configurator-main[data-current-step="size"] .config-size-visual img {
  width: min(100%, 560px);
  max-height: 292px;
}

.configurator-main[data-current-step="size"] .config-size-content {
  gap: 16px;
}

.config-upgrades {
  display: grid;
  gap: 12px;
  align-content: start;
  align-items: start;
  grid-auto-rows: max-content;
}

#upgrade-motor-block {
  align-self: start;
  margin-top: 0;
}

.config-addon-card {
  padding: 16px;
  border-radius: 18px;
}

.config-addon-copy {
  gap: 6px;
}

.config-addon-copy strong {
  font-size: 0.92rem;
}

.config-addon-copy small {
  font-size: 0.76rem;
  line-height: 1.58;
}



#upgrade-force-block {
  align-self: start;
  margin-top: 0;
}



.motor-sub-options.open {
  margin-top: 12px;
  padding: 12px;
  border-radius: 14px;
}

.upgrade-compat-note {
  font-size: 0.76rem;
}

.config-addons-actions,
.config-notes-actions {
  display: grid;
  gap: 12px;
  padding: 14px 15px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.02);
}

.config-addons-next-note,
.config-notes-next-note {
  margin: 0;
  font-size: 0.79rem;
  line-height: 1.64;
  color: var(--text-secondary);
}

.config-addons-next-btn,
.config-notes-next-btn {
  justify-self: start;
}

.config-addons-actions {
  width: min(100%, 356px);
  justify-self: start;
  align-self: start;
  align-content: start;
  justify-items: start;
  gap: 10px;
  margin-top: 2px;
  padding: 13px 14px 14px;
  border-radius: 18px;
}

.config-addons-next-note {
  max-width: 32ch;
  font-size: 0.76rem;
  line-height: 1.58;
}

.config-addons-next-btn {
  width: min(100%, 268px);
  min-height: 48px;
  padding: 0 18px;
  border-radius: 16px;
  font-size: 0.84rem;
}

.config-notes-panel {
  display: grid;
  gap: 16px;
  padding: 18px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background:
    linear-gradient(180deg, rgba(25, 32, 43, 0.92), rgba(14, 19, 27, 0.96)),
    radial-gradient(circle at top right, rgba(34, 191, 255, 0.08), transparent 44%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.config-notes-toggle-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
}

.config-notes-intro {
  display: grid;
  gap: 6px;
}

.config-notes-title {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.72;
  font-weight: 600;
  color: var(--text-primary);
}

.config-notes-copy {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.66;
  color: var(--text-secondary);
}

.config-notes-field {
  display: grid;
  gap: 8px;
}

.config-custom-switch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 96px;
  padding: 8px 10px 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
  cursor: pointer;
  transition: border-color 0.24s ease, background 0.24s ease, transform 0.24s ease;
}

.config-custom-switch:hover {
  border-color: rgba(34, 191, 255, 0.26);
  background: rgba(255, 255, 255, 0.05);
}

.config-custom-switch:focus-visible {
  outline: none;
  border-color: rgba(34, 191, 255, 0.45);
  box-shadow:
    0 0 0 1px rgba(34, 191, 255, 0.36),
    0 0 0 6px rgba(34, 191, 255, 0.1);
}

.config-custom-switch.active {
  border-color: rgba(34, 191, 255, 0.34);
  background: rgba(34, 191, 255, 0.1);
}

.config-custom-switch-label {
  min-width: 18px;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.config-custom-switch.active .config-custom-switch-label {
  color: var(--cyan);
}

.config-custom-switch .switch-track {
  width: 46px;
  height: 24px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  transition: background 0.24s ease;
}

.config-custom-switch .switch-thumb {
  width: 18px;
  height: 18px;
  top: 3px;
  left: 3px;
  background: #c8d0dd;
  transition: transform 0.24s ease, background 0.24s ease;
}

.config-custom-switch.active .switch-track {
  background: rgba(34, 191, 255, 0.55);
}

.config-custom-switch.active .switch-thumb {
  transform: translateX(22px);
  background: #f4fbff;
}

.config-custom-area {
  display: grid;
  gap: 10px;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  transition:
    max-height 0.32s ease,
    opacity 0.24s ease,
    margin-top 0.24s ease;
}

.config-custom-area.open {
  max-height: 360px;
  opacity: 1;
  margin-top: 4px;
  pointer-events: auto;
}

.config-notes-label {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.config-textarea-notes {
  min-height: 180px;
  resize: vertical;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(180deg, rgba(9, 13, 19, 0.98), rgba(15, 20, 27, 0.98)),
    radial-gradient(circle at top right, rgba(34, 191, 255, 0.08), transparent 52%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
  line-height: 1.72;
}

.config-textarea-notes::placeholder {
  color: rgba(182, 191, 205, 0.62);
}

.config-textarea-notes:focus {
  border-color: rgba(34, 191, 255, 0.34);
  box-shadow:
    0 0 0 1px rgba(34, 191, 255, 0.22),
    0 18px 38px rgba(0, 0, 0, 0.2);
}

.config-custom-confirm {
  display: grid;
  gap: 12px;
  padding: 14px 15px;
  border-radius: 18px;
  border: 1px solid rgba(255, 196, 102, 0.18);
  background: linear-gradient(180deg, rgba(48, 37, 21, 0.62), rgba(26, 21, 15, 0.92));
}

.config-custom-confirm[hidden] {
  display: none;
}

.config-custom-confirm-copy {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.62;
  color: rgba(242, 224, 189, 0.94);
}

.config-custom-confirm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.config-custom-confirm-btn,
.config-custom-dismiss-btn {
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  transition: transform 0.24s ease, border-color 0.24s ease, background 0.24s ease, color 0.24s ease;
}

.config-custom-dismiss-btn {
  border: 1px solid rgba(255, 214, 138, 0.22);
  background: rgba(255, 255, 255, 0.03);
  color: rgba(250, 231, 196, 0.96);
}

.config-custom-dismiss-btn:hover,
.config-custom-confirm-btn:hover {
  transform: translateY(-1px);
}

.config-custom-dismiss-btn:hover {
  background: rgba(255, 214, 138, 0.1);
  border-color: rgba(255, 214, 138, 0.36);
}

.configurator-footer {
  margin-top: 6px;
}

.configurator-footer.is-ready {
  max-height: 1800px;
}

.configurator-closing {
  gap: 14px;
}

.configurator-order-panel {
  gap: 14px;
  padding: 18px;
}

.configurator-order-grid {
  gap: 10px;
}

.config-order-item {
  min-height: 80px;
}

.configurator-notes-review {
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(180deg, rgba(20, 26, 34, 0.96), rgba(15, 20, 27, 0.96));
}

.configurator-notes-review-copy {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--text-primary);
}

@media (min-width: 980px) {
  .config-step-head {
    grid-template-columns: minmax(0, 1fr) minmax(250px, 0.54fr);
    align-items: start;
  }
}

@media (max-width: 1180px) {
  .configurator-layout {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 320px);
    grid-template-areas:
      "rail rail"
      "main side";
  }

  .configurator-rail,
  .configurator-sidebar {
    position: static;
  }

  .configurator-stepper {
    grid-template-columns: repeat(6, minmax(168px, 1fr));
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .configurator-stepper::-webkit-scrollbar {
    display: none;
  }

  .config-step {
    grid-template-columns: 32px minmax(0, 1fr);
    min-height: 66px;
  }

  .config-step::after {
    display: none;
  }

  .configurator-layout[data-step-mode="visual"] {
    grid-template-columns: 1fr;
    grid-template-areas:
      "rail"
      "main";
  }

  .configurator-layout[data-current-step="size"] {
    grid-template-columns: 1fr;
    grid-template-areas:
      "rail"
      "main";
  }

  .configurator-main[data-current-step="size"] .config-size-layout {
    grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
  }

  .configurator-main[data-current-step="size"] .config-size-showcase {
    padding: 24px;
  }

  .configurator-main[data-current-step="size"] .config-size-visual {
    min-height: 276px;
  }

  .configurator-main[data-current-step="size"] .config-size-visual img {
    width: min(100%, 470px);
    max-height: 250px;
  }

  .config-size-layout {
    grid-template-columns: minmax(220px, 0.78fr) minmax(0, 1.22fr);
  }

  .config-size-showcase {
    padding: 20px;
  }

  .config-size-visual {
    min-height: 248px;
  }

  .config-size-visual img {
    width: min(100%, 430px);
    max-height: 232px;
  }

  .configurator-main[data-step-mode="visual"] .config-material-layout,
  .configurator-main[data-step-mode="visual"] .config-version-layout {
    grid-template-columns: minmax(220px, 0.76fr) minmax(0, 1.24fr);
  }

  .configurator-main[data-step-mode="visual"] .config-addons-layout {
    grid-template-columns: minmax(286px, 0.88fr) minmax(0, 1.12fr);
  }

  .config-material-layout {
    grid-template-columns: minmax(220px, 0.84fr) minmax(0, 1.16fr);
  }

  .config-material-showcase {
    padding: 20px;
  }

  .config-material-visual {
    min-height: 264px;
  }

  .config-material-visual img {
    width: min(100%, 430px);
    max-height: 258px;
  }

  .config-version-layout {
    grid-template-columns: minmax(220px, 0.84fr) minmax(0, 1.16fr);
  }

  .config-version-showcase {
    padding: 20px;
  }

  .config-version-visual {
    min-height: 264px;
  }

  .config-version-visual img {
    width: min(100%, 430px);
    max-height: 258px;
  }

  .config-addons-layout {
    grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.1fr);
  }

  .config-addons-showcase {
    padding: 20px;
  }

  .config-addons-visual {
    min-height: 264px;
  }

  .config-addons-visual img {
    width: min(100%, 430px);
    max-height: 258px;
  }
}

@media (max-width: 900px) {
  .configurator-panel {
    width: 100vw;
  }

  .configurator-body {
    padding: 16px 18px 20px;
  }

  .configurator-layout {
    grid-template-columns: 1fr;
    grid-template-areas:
      "rail"
      "main"
      "side";
    gap: 14px;
  }

  .configurator-layout[data-step-mode="visual"] {
    grid-template-columns: 1fr;
  }

  .configurator-layout[data-current-step="size"] {
    grid-template-columns: 1fr;
  }

  .configurator-main[data-current-step="size"] .config-size-layout {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .configurator-main[data-current-step="size"] .config-size-showcase {
    padding: 20px;
    border-radius: 26px;
  }

  .configurator-main[data-current-step="size"] .config-size-visual {
    min-height: 252px;
  }

  .configurator-main[data-current-step="size"] .config-size-visual img {
    width: min(100%, 420px);
    max-height: 226px;
  }

  .config-size-layout {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .configurator-main[data-step-mode="visual"] .config-material-layout,
  .configurator-main[data-step-mode="visual"] .config-version-layout,
  .configurator-main[data-step-mode="visual"] .config-addons-layout {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .configurator-stepper {
    grid-template-columns: repeat(6, minmax(156px, 1fr));
  }

  .config-choice-grid,
  .config-choice-grid.config-choice-grid-size,
  .configurator-order-grid,
  .configurator-tech-strip,
  .config-size-metrics,
  .config-info-row,
  .configurator-action-row {
    grid-template-columns: 1fr;
  }

  .config-addons-next-btn,
  .config-notes-next-btn,
  .configurator-closing-actions .config-quote-btn,
  .configurator-closing-actions .config-edit-btn {
    width: 100%;
    justify-content: center;
  }

  .config-addons-actions {
    width: min(100%, 344px);
  }

  .config-addons-next-btn {
    width: min(100%, 258px);
  }

  .config-material-layout {
    grid-template-columns: 1fr;
  }

  .config-size-showcase {
    padding: 18px;
  }

  .config-size-visual {
    min-height: 230px;
  }

  .config-size-visual img {
    width: min(100%, 390px);
    max-height: 214px;
  }

  .config-material-showcase {
    padding: 18px;
  }

  .configurator-main[data-step-mode="visual"] .config-material-showcase,
  .configurator-main[data-step-mode="visual"] .config-version-showcase,
  .configurator-main[data-step-mode="visual"] .config-addons-showcase {
    padding: 20px;
    border-radius: 26px;
  }

  .config-material-visual {
    min-height: 236px;
  }

  .configurator-main[data-step-mode="visual"] .config-material-visual,
  .configurator-main[data-step-mode="visual"] .config-version-visual,
  .configurator-main[data-step-mode="visual"] .config-addons-visual {
    min-height: 258px;
  }

  .config-material-visual img {
    width: min(100%, 390px);
    max-height: 228px;
  }

  .configurator-main[data-step-mode="visual"] .config-material-visual img,
  .configurator-main[data-step-mode="visual"] .config-version-visual img,
  .configurator-main[data-step-mode="visual"] .config-addons-visual img {
    width: min(100%, 410px);
    max-height: 240px;
  }

  .config-version-layout {
    grid-template-columns: 1fr;
  }

  .config-version-showcase {
    padding: 18px;
  }

  .config-version-visual {
    min-height: 236px;
  }

  .config-version-visual img {
    width: min(100%, 390px);
    max-height: 228px;
  }

  .config-addons-layout {
    grid-template-columns: 1fr;
  }

  .config-addons-showcase {
    padding: 18px;
  }

  .config-addons-visual {
    min-height: 236px;
  }

  .config-addons-visual img {
    width: min(100%, 390px);
    max-height: 228px;
  }

  .config-addons-tech {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  #config-step-size .size-btn {
    min-height: 80px;
    padding: 10px 12px;
    border-radius: 16px;
  }

  #config-step-size .size-btn .choice-card-title {
    font-size: 0.87rem;
  }

  .config-size-showcase {
    padding: 16px;
    border-radius: 24px;
  }

  .configurator-main[data-current-step="size"] .config-size-showcase {
    padding: 18px;
    border-radius: 24px;
  }

  .config-size-visual {
    min-height: 206px;
    border-radius: 20px;
  }

  .configurator-main[data-current-step="size"] .config-size-visual {
    min-height: 224px;
    border-radius: 20px;
  }

  .config-size-visual img {
    width: min(100%, 350px);
    max-height: 194px;
  }

  .configurator-main[data-current-step="size"] .config-size-visual img {
    width: min(100%, 372px);
    max-height: 206px;
  }

  .config-size-name {
    font-size: 1rem;
  }

  .config-material-layout .config-choice-card {
    min-height: 138px;
    border-radius: 18px;
  }

  .config-material-showcase {
    padding: 16px;
    border-radius: 24px;
  }

  .configurator-main[data-step-mode="visual"] .config-material-showcase,
  .configurator-main[data-step-mode="visual"] .config-version-showcase,
  .configurator-main[data-step-mode="visual"] .config-addons-showcase {
    padding: 18px;
    border-radius: 24px;
  }

  .config-material-state {
    gap: 16px;
  }

  .config-material-visual {
    min-height: 214px;
    border-radius: 20px;
  }

  .configurator-main[data-step-mode="visual"] .config-material-visual,
  .configurator-main[data-step-mode="visual"] .config-version-visual,
  .configurator-main[data-step-mode="visual"] .config-addons-visual {
    min-height: 228px;
    border-radius: 20px;
  }

  .config-material-visual img {
    width: min(100%, 360px);
    max-height: 210px;
  }

  .configurator-main[data-step-mode="visual"] .config-material-visual img,
  .configurator-main[data-step-mode="visual"] .config-version-visual img,
  .configurator-main[data-step-mode="visual"] .config-addons-visual img {
    width: min(100%, 370px);
    max-height: 214px;
  }

  .config-version-layout .config-choice-card {
    min-height: 138px;
    border-radius: 18px;
  }

  .config-version-showcase {
    padding: 16px;
    border-radius: 24px;
  }

  .config-version-state {
    gap: 16px;
  }

  .config-version-visual {
    min-height: 214px;
    border-radius: 20px;
  }

  .config-version-visual img {
    width: min(100%, 360px);
    max-height: 210px;
  }

  .config-addons-showcase {
    padding: 16px;
    border-radius: 24px;
  }

  .config-addons-visual {
    min-height: 214px;
    border-radius: 20px;
  }

  .config-addons-visual img {
    width: min(100%, 360px);
    max-height: 210px;
  }
}

@media (max-width: 540px) {
  #config-step-size .size-btn {
    min-height: 72px;
    padding: 10px 11px;
  }

  .config-addons-actions {
    width: min(100%, 320px);
    padding: 12px 13px 13px;
  }

  .config-addons-next-btn {
    width: min(100%, 244px);
    min-height: 46px;
    font-size: 0.81rem;
  }

  .configurator-body {
    padding: 14px;
  }

  .configurator-rail-card,
  .config-step-panel,
  .config-side-card,
  .config-notes-panel,
  .config-addons-actions,
  .config-notes-actions,
  .configurator-order-panel,
  .configurator-fit-panel,
  .configurator-addon-panel,
  .configurator-notes-review,
  .configurator-quote-strip {
    padding: 14px;
    border-radius: 16px;
  }

  .config-step {
    min-height: 60px;
    padding: 12px;
    border-radius: 16px;
  }

  .config-choice-card {
    min-height: 112px;
    padding: 13px;
    border-radius: 16px;
  }

  .config-summary-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .config-textarea-notes {
    min-height: 170px;
  }

  .config-notes-toggle-row {
    grid-template-columns: 1fr;
  }

  .config-custom-switch {
    justify-self: start;
  }
}


/* --------- INJECTED CUSTOM CONFIG INLINE STYLES --------- */
.config-custom-inline {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background-color: var(--surface-light);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 16px;
  margin-top: 16px;
  margin-bottom: 24px;
}

.config-custom-inline-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.config-custom-inline-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.config-custom-area label {
  width: 100%;
}
.config-textarea-notes {
  width: 100%;
  min-height: 80px;
  background-color: var(--surface-dark);
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  padding: 12px;
  font-family: inherit;
  color: var(--text-primary);
  font-size: 0.9rem;
  resize: vertical;
}

.config-textarea-notes:focus {
  border-color: var(--accent-primary);
  outline: none;
}

/* Tighten the motor kit info to be extremely compact */
.config-addons-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.config-addons-kicker {
  color: var(--accent-primary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.config-addons-name {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.config-addons-copy {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 16px;
}

.config-addons-tech {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  background: var(--surface-light);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 16px;
  margin-top: auto;
}

.config-addons-tech-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.config-addons-tech-item span {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.config-addons-tech-item strong {
  font-size: 1.1rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
}
/* ═══════════════════════════════════════════════════════════ */
/* FLOATING CONFIGURATOR CTA                                   */
/* ═══════════════════════════════════════════════════════════ */
.config-floating-cta {
  position: fixed;
  right: 2rem;
  bottom: 6.8rem;
  z-index: 950;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 0.6rem;
  height: 3.4rem;
  min-width: 3.4rem;
  max-width: 3.4rem;
  background: rgba(15, 20, 28, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 174, 239, 0.24);
  border-radius: 999px;
  color: #fff;
  cursor: pointer;
  overflow: hidden;
  box-shadow: 
    0 16px 42px rgba(0, 0, 0, 0.4),
    inset 0 1px 1px rgba(255, 255, 255, 0.05);
  transition: 
    max-width 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    gap 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    padding 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    background 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease,
    opacity 0.5s ease,
    transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 0;
  transform: translateY(24px);
  pointer-events: none;
}

.config-floating-cta.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.config-floating-cta:hover {
  max-width: 14rem;
  gap: 0.75rem;
  padding: 0.6rem 1.1rem 0.6rem 0.6rem;
  background: rgba(20, 28, 40, 0.96);
  border-color: rgba(0, 174, 239, 0.6);
  box-shadow: 
    0 20px 54px rgba(0, 0, 0, 0.5),
    0 0 24px rgba(0, 174, 239, 0.18);
}

.config-floating-cta.is-configurator-open {
  opacity: 0 !important;
  transform: translateY(20px) !important;
  pointer-events: none !important;
}

.config-floating-cta .cta-label {
  font-family: var(--font-primary);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  max-width: 0;
  overflow: hidden;
  opacity: 0;
  transition: 
    max-width 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.3s ease;
}

.config-floating-cta:hover .cta-label {
  max-width: 10rem;
  opacity: 1;
}

.config-floating-cta .cta-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: transparent;
  flex-shrink: 0;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.config-floating-cta:hover .cta-icon {
  transform: scale(1.08);
}

.config-floating-cta .cta-drone-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  padding: 0.2rem;
  filter: brightness(1.15) drop-shadow(0 0 6px rgba(0, 174, 239, 0.35));
  transition: filter 0.3s ease;
  user-select: none;
  -webkit-user-drag: none;
}

.config-floating-cta:hover .cta-drone-img {
  filter: brightness(1.3) drop-shadow(0 0 10px rgba(0, 174, 239, 0.6));
}

@media (max-width: 768px) {
  .config-floating-cta {
    right: 1.25rem;
    bottom: 6rem;
    height: 3.2rem;
    min-width: 3.2rem;
    max-width: 3.2rem;
  }
}

/* Mobile / tablet refinement */
@media (max-width: 1024px) {
  :root {
    --header-height: 70px;
  }

  .site-header,
  .site-header.is-top,
  .site-header.scrolled {
    padding-top: 0.5rem;
  }

  .site-header.is-hidden {
    transform: none;
  }

  .header-container,
  .site-header.scrolled .header-container {
    grid-template-columns: auto minmax(32px, 1fr) 48px;
    width: calc(100% - clamp(20px, 4vw, 44px));
    height: 66px;
    padding: 0 8px 0 clamp(16px, 2.8vw, 24px);
    gap: clamp(0.9rem, 2.4vw, 1.5rem);
    border-radius: 22px;
    border-color: rgba(0, 174, 239, 0.13);
    background: linear-gradient(180deg, rgba(12, 17, 24, 0.9), rgba(8, 12, 18, 0.96));
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow:
      0 16px 38px rgba(0, 0, 0, 0.28),
      inset 0 1px 0 rgba(255, 255, 255, 0.04);
  }

  .header-logo {
    display: inline-flex;
    align-items: center;
    min-width: 0;
  }

  .header-logo img,
  .site-header.scrolled .header-logo img {
    height: 36px;
  }

  .hamburger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    justify-self: end;
    width: 46px;
    height: 46px;
    padding: 0;
    border: 1px solid rgba(0, 174, 239, 0.18);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.035);
    touch-action: manipulation;
  }

  .hamburger span {
    width: 22px;
  }

  .header-nav {
    position: fixed;
    top: calc(var(--header-height) + 14px);
    right: clamp(12px, 3vw, 24px);
    width: min(360px, calc(100vw - 28px));
    height: auto;
    max-height: calc(100vh - var(--header-height) - 28px);
    overflow-y: auto;
    flex-direction: column;
    justify-content: flex-start;
    padding: 0.75rem;
    border: 1px solid rgba(0, 174, 239, 0.14);
    border-radius: 24px;
    background:
      radial-gradient(circle at top right, rgba(0, 174, 239, 0.12), transparent 42%),
      linear-gradient(180deg, rgba(12, 17, 24, 0.98), rgba(7, 11, 17, 0.98));
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.42);
    opacity: 0;
    pointer-events: none;
    transform: translate3d(0, -10px, 0) scale(0.98);
    transition:
      opacity var(--transition-base),
      transform var(--transition-base);
  }

  .header-nav.open {
    opacity: 1;
    pointer-events: auto;
    transform: translate3d(0, 0, 0) scale(1);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    width: 100%;
  }

  .nav-link {
    width: 100%;
    min-height: 48px;
    padding: 0.85rem 0.95rem;
    border-radius: 15px;
  }

  .nav-link:hover,
  .nav-link[aria-current="page"] {
    background: rgba(0, 174, 239, 0.06);
  }

  .nav-link::after {
    left: 0.95rem;
    right: 0.95rem;
    bottom: 0.45rem;
  }

  .container {
    padding-left: clamp(1.25rem, 4vw, 2.25rem);
    padding-right: clamp(1.25rem, 4vw, 2.25rem);
  }

  .hero-container {
    max-width: 820px;
    min-height: auto;
    padding-top: calc(var(--header-height) + 3rem);
    padding-bottom: clamp(3.5rem, 7vw, 5rem);
  }

  .hero-image-wrapper {
    max-width: min(460px, 78vw);
  }

  .hero-ctas .btn-primary,
  .hero-ctas .btn-secondary,
  .contact-btn,
  .btn-specs-download {
    min-height: 50px;
  }

  body.product-page .info-shell {
    width: min(var(--info-max-width), calc(100% - clamp(32px, 6vw, 64px)));
  }

  body.product-page .info-section {
    padding: clamp(4.75rem, 8vw, 6rem) 0;
  }

  body.product-page .info-section .section-heading {
    margin-bottom: clamp(2rem, 4vw, 2.75rem);
  }

  body.product-page .system-video-shell,
  body.product-page .safe-validation-media,
  body.product-page .versions-intro-shell,
  body.product-page .version-card,
  body.product-page .material-panel,
  body.product-page .addons-intro-card,
  body.product-page .addon-main-media-feature,
  .application-card,
  .contact-card {
    border-radius: clamp(20px, 3vw, 28px);
  }

  .scroll-top-button {
    right: calc(20px + env(safe-area-inset-right));
    bottom: calc(20px + env(safe-area-inset-bottom));
    width: 54px;
    height: 54px;
    border-radius: 18px;
  }

  .config-floating-cta {
    right: calc(20px + env(safe-area-inset-right));
    bottom: calc(86px + env(safe-area-inset-bottom));
    height: 54px;
    min-width: 54px;
    max-width: 54px;
    border-radius: 18px;
    background:
      linear-gradient(180deg, rgba(22, 28, 37, 0.94), rgba(12, 16, 22, 0.98));
    border-color: rgba(0, 174, 239, 0.22);
    box-shadow:
      0 18px 40px rgba(0, 0, 0, 0.26),
      inset 0 1px 0 rgba(255, 255, 255, 0.05);
  }

  .config-floating-cta .cta-icon {
    width: 2.25rem;
    height: 2.25rem;
  }
}

@media (min-width: 721px) and (max-width: 1024px) {
  .applications-grid,
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.product-page .testing-grid,
  body.product-page .audience-grid,
  body.product-page .addons-quick-grid,
  body.product-page .versions-quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.product-page .audience-card:last-child,
  body.product-page .addons-quick-item:last-child {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .header-container,
  .site-header.scrolled .header-container {
    grid-template-columns: auto minmax(24px, 1fr) 46px;
    width: calc(100% - 20px);
    height: 62px;
    padding-left: 14px;
    padding-right: 8px;
    gap: 0.8rem;
    border-radius: 20px;
  }

  .header-logo img,
  .site-header.scrolled .header-logo img {
    height: 32px;
  }

  .hamburger {
    width: 46px;
    height: 46px;
  }

  .header-nav {
    top: calc(var(--header-height) + 12px);
    right: 10px;
    width: calc(100vw - 20px);
    max-height: calc(100vh - var(--header-height) - 24px);
    padding: 0.7rem;
    border-radius: 22px;
  }

  .container {
    padding-left: 1.125rem;
    padding-right: 1.125rem;
  }

  .hero-container {
    padding-top: calc(var(--header-height) + 2.25rem);
    padding-bottom: 3.5rem;
  }

  .hero-ctas {
    width: min(100%, 420px);
    margin-left: auto;
    margin-right: auto;
    gap: 0.75rem;
  }

  .section-title {
    font-size: clamp(1.6rem, 7vw, 2.35rem);
    line-height: 1.12;
  }

  .applications-grid {
    grid-template-columns: 1fr;
  }

  body.product-page .info-shell {
    width: min(var(--info-max-width), calc(100% - 24px));
  }

  body.product-page .info-section {
    padding: 4.45rem 0;
  }

  body.product-page .info-section .section-title {
    font-size: clamp(2rem, 10vw, 3rem);
    line-height: 1.02;
    letter-spacing: -0.035em;
  }

  body.product-page .info-section .section-text,
  body.product-page .info-section .section-heading .section-text {
    font-size: 0.98rem;
    line-height: 1.72;
  }

  body.product-page .testing-card,
  body.product-page .audience-card,
  body.product-page .system-brief-item,
  body.product-page .versions-intro-shell,
  body.product-page .version-card,
  body.product-page .material-panel,
  body.product-page .addons-intro-card,
  .application-card-body,
  .contact-card {
    padding: 1.15rem;
  }

  .scroll-top-button {
    right: calc(14px + env(safe-area-inset-right));
    bottom: calc(14px + env(safe-area-inset-bottom));
    width: 52px;
    height: 52px;
    border-radius: 17px;
  }

  .config-floating-cta {
    right: calc(14px + env(safe-area-inset-right));
    bottom: calc(76px + env(safe-area-inset-bottom));
    height: 52px;
    min-width: 52px;
    max-width: 52px;
    border-radius: 17px;
  }
}

@media (max-width: 480px) {
  .header-container,
  .site-header.scrolled .header-container {
    width: calc(100% - 16px);
    padding-left: 12px;
    padding-right: 6px;
  }

  .hero-ctas .btn-primary,
  .hero-ctas .btn-secondary,
  .contact-btn,
  .btn-specs-download {
    width: 100%;
    justify-content: center;
    min-height: 50px;
  }

  .scroll-top-button {
    right: calc(12px + env(safe-area-inset-right));
    bottom: calc(12px + env(safe-area-inset-bottom));
    width: 50px;
    height: 50px;
    border-radius: 16px;
  }

  .config-floating-cta {
    right: calc(12px + env(safe-area-inset-right));
    bottom: calc(72px + env(safe-area-inset-bottom));
    height: 50px;
    min-width: 50px;
    max-width: 50px;
    border-radius: 16px;
  }
}