:root {
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", "Manrope", sans-serif;
  --font-mono: "IBM Plex Mono", "Geist Mono", monospace;
  --bg: #07111f;
  --surface: rgba(10, 20, 36, 0.78);
  --surface-strong: rgba(13, 26, 45, 0.94);
  --line: rgba(121, 210, 255, 0.18);
  --line-strong: rgba(121, 210, 255, 0.34);
  --text: #eef7ff;
  --muted: #98abc1;
  --accent: #7af0ff;
  --brand: #00c2ff;
  --brand-deep: #0077ff;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
  --glow: 0 0 0 1px rgba(122, 240, 255, 0.12), 0 20px 60px rgba(0, 75, 140, 0.28);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --vc3d: #8e6bff;
  --fues: #ff4f6d;
  --fes: #ffb357;
  --router: #2dd4ff;
  --emirror: #2af5c2;
  --body-radial-a: rgba(44, 224, 255, 0.18);
  --body-radial-b: rgba(142, 107, 255, 0.18);
  --body-radial-c: rgba(42, 245, 194, 0.12);
  --body-grad-start: #040914;
  --body-grad-mid: var(--bg);
  --body-grad-end: #02060d;
  --grid-line: rgba(122, 240, 255, 0.035);
  --grid-mask: linear-gradient(180deg, rgba(0, 0, 0, 0.48), transparent 92%);
  --topbar-bg: rgba(7, 17, 31, 0.78);
  --brand-kicker-bg:
    linear-gradient(135deg, rgba(0, 194, 255, 0.2), rgba(142, 107, 255, 0.18)),
    rgba(9, 18, 32, 0.8);
  --brand-kicker-shadow: inset 0 0 18px rgba(122, 240, 255, 0.08);
  --panel-bg-soft: rgba(13, 26, 45, 0.72);
  --panel-bg-strong: rgba(13, 26, 45, 0.82);
  --panel-border: rgba(121, 210, 255, 0.16);
  --panel-border-strong: rgba(121, 210, 255, 0.18);
  --panel-hover-bg: rgba(17, 34, 58, 0.92);
  --panel-hover-shadow: 0 0 18px rgba(44, 224, 255, 0.12);
  --accent-ink: #03111d;
  --hero-bg:
    radial-gradient(circle at top right, rgba(44, 224, 255, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(10, 20, 36, 0.88), rgba(8, 15, 28, 0.96));
  --hero-sheen: linear-gradient(120deg, transparent 0%, rgba(122, 240, 255, 0.08) 35%, transparent 58%);
  --hero-subtext: #d7ebff;
  --hero-note-bg: rgba(6, 29, 43, 0.72);
  --hero-note-text: #dff8ff;
  --badge-bg: rgba(16, 31, 53, 0.86);
  --badge-border: rgba(122, 240, 255, 0.14);
  --badge-text: #dff8ff;
  --stat-bg: linear-gradient(145deg, rgba(13, 26, 45, 0.92), rgba(10, 20, 36, 0.72));
  --stat-border: rgba(121, 210, 255, 0.16);
  --stat-inner-shadow: inset 0 0 22px rgba(122, 240, 255, 0.03);
  --orbit-bg:
    radial-gradient(circle at center, rgba(44, 224, 255, 0.12), transparent 36%),
    linear-gradient(180deg, rgba(10, 20, 36, 0.92), rgba(6, 12, 22, 0.84));
  --orbit-border: rgba(121, 210, 255, 0.14);
  --orbit-ring-line: rgba(122, 240, 255, 0.18);
  --orbit-core-white: #dfffff;
  --orbit-core-shadow: 0 0 28px rgba(44, 224, 255, 0.5);
  --orbit-node-shadow: 0 0 18px rgba(44, 224, 255, 0.34);
  --card-border: rgba(121, 210, 255, 0.14);
  --card-inner-shadow: inset 0 0 24px rgba(122, 240, 255, 0.02);
  --card-hover-shadow: inset 0 0 24px rgba(122, 240, 255, 0.04), 0 16px 36px rgba(0, 0, 0, 0.22);
  --system-card-bg: linear-gradient(180deg, rgba(14, 27, 46, 0.98), rgba(8, 15, 28, 0.94)), var(--surface-strong);
  --system-icon-bg: rgba(15, 31, 53, 0.88);
  --system-icon-border: rgba(121, 210, 255, 0.16);
  --system-icon-shadow: inset 0 0 18px rgba(122, 240, 255, 0.06);
  --meta-chip-bg: rgba(12, 26, 43, 0.88);
  --meta-chip-border: rgba(121, 210, 255, 0.14);
  --meta-chip-text: #d7e7f7;
  --surface-solid: #0b1728;
  --surface-solid-soft: #0f1d31;
  --surface-solid-light: rgba(14, 28, 46, 0.94);
  --surface-solid-lightmode: #ffffff;
  --hero-outline: rgba(122, 240, 255, 0.18);
  --hero-panel-shadow: 0 28px 60px rgba(2, 10, 20, 0.22);
  --summary-bg: linear-gradient(135deg, rgba(17, 202, 255, 0.12), rgba(142, 107, 255, 0.1));
  --summary-border: rgba(122, 240, 255, 0.18);
  --signal-pill-bg: rgba(10, 24, 40, 0.74);
  --signal-pill-border: rgba(122, 240, 255, 0.14);
  --signal-pill-text: #d7f6ff;
  --topbar-ring: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  --section-head-max: 60rem;
  --cta-grid-highlight: linear-gradient(135deg, rgba(0, 194, 255, 0.14), rgba(42, 245, 194, 0.08));
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

html[data-mode="light"] {
  color-scheme: light;
  --bg: #eef4fb;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: rgba(255, 255, 255, 0.94);
  --line: rgba(24, 95, 149, 0.12);
  --line-strong: rgba(24, 95, 149, 0.24);
  --text: #12202f;
  --muted: #5e7286;
  --accent: #17caff;
  --brand: #0b84ff;
  --brand-deep: #125cc9;
  --shadow: 0 24px 70px rgba(18, 32, 47, 0.12);
  --glow: 0 0 0 1px rgba(24, 95, 149, 0.06), 0 18px 42px rgba(24, 95, 149, 0.1);
  --body-radial-a: rgba(44, 224, 255, 0.14);
  --body-radial-b: rgba(142, 107, 255, 0.1);
  --body-radial-c: rgba(42, 245, 194, 0.08);
  --body-grad-start: #fbfdff;
  --body-grad-mid: #eef4fb;
  --body-grad-end: #e4edf7;
  --grid-line: rgba(24, 95, 149, 0.055);
  --grid-mask: linear-gradient(180deg, rgba(0, 0, 0, 0.22), transparent 92%);
  --topbar-bg: rgba(248, 251, 255, 0.92);
  --brand-kicker-bg:
    linear-gradient(135deg, rgba(0, 194, 255, 0.14), rgba(142, 107, 255, 0.1)),
    rgba(255, 255, 255, 0.9);
  --brand-kicker-shadow: inset 0 0 18px rgba(0, 194, 255, 0.08);
  --panel-bg-soft: rgba(250, 252, 255, 0.9);
  --panel-bg-strong: rgba(244, 248, 255, 0.96);
  --panel-border: rgba(24, 95, 149, 0.12);
  --panel-border-strong: rgba(24, 95, 149, 0.18);
  --panel-hover-bg: rgba(239, 245, 253, 0.98);
  --panel-hover-shadow: 0 0 18px rgba(24, 95, 149, 0.08);
  --accent-ink: #082036;
  --hero-bg:
    radial-gradient(circle at top right, rgba(44, 224, 255, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(238, 244, 251, 0.98));
  --hero-sheen: linear-gradient(120deg, transparent 0%, rgba(0, 194, 255, 0.08) 35%, transparent 58%);
  --hero-subtext: #365169;
  --hero-note-bg: rgba(239, 247, 255, 0.94);
  --hero-note-text: #16324a;
  --badge-bg: rgba(243, 248, 255, 0.96);
  --badge-border: rgba(24, 95, 149, 0.12);
  --badge-text: #27405b;
  --stat-bg: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(241, 247, 255, 0.92));
  --stat-border: rgba(24, 95, 149, 0.12);
  --stat-inner-shadow: inset 0 0 22px rgba(23, 202, 255, 0.04);
  --orbit-bg:
    radial-gradient(circle at center, rgba(44, 224, 255, 0.18), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(238, 245, 253, 0.94));
  --orbit-border: rgba(24, 95, 149, 0.12);
  --orbit-ring-line: rgba(24, 95, 149, 0.16);
  --orbit-core-white: #ffffff;
  --orbit-core-shadow: 0 0 24px rgba(0, 156, 220, 0.24);
  --orbit-node-shadow: 0 0 14px rgba(0, 156, 220, 0.2);
  --card-border: rgba(24, 95, 149, 0.12);
  --card-inner-shadow: inset 0 0 24px rgba(23, 202, 255, 0.03);
  --card-hover-shadow: inset 0 0 24px rgba(23, 202, 255, 0.05), 0 18px 34px rgba(18, 32, 47, 0.12);
  --system-card-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(242, 247, 255, 0.96)), var(--surface-strong);
  --system-icon-bg: rgba(246, 250, 255, 0.94);
  --system-icon-border: rgba(24, 95, 149, 0.12);
  --system-icon-shadow: inset 0 0 18px rgba(23, 202, 255, 0.05);
  --meta-chip-bg: rgba(243, 248, 255, 0.96);
  --meta-chip-border: rgba(24, 95, 149, 0.12);
  --meta-chip-text: #35506b;
  --surface-solid: #ffffff;
  --surface-solid-soft: #f7fbff;
  --surface-solid-light: rgba(255, 255, 255, 0.96);
  --surface-solid-lightmode: #ffffff;
  --hero-outline: rgba(24, 95, 149, 0.12);
  --hero-panel-shadow: 0 24px 46px rgba(18, 32, 47, 0.1);
  --summary-bg: linear-gradient(135deg, rgba(11, 132, 255, 0.08), rgba(23, 202, 255, 0.1));
  --summary-border: rgba(24, 95, 149, 0.14);
  --signal-pill-bg: rgba(245, 249, 255, 0.96);
  --signal-pill-border: rgba(24, 95, 149, 0.1);
  --signal-pill-text: #26435f;
  --topbar-ring: inset 0 1px 0 rgba(255, 255, 255, 0.68);
  --cta-grid-highlight: linear-gradient(135deg, rgba(11, 132, 255, 0.06), rgba(23, 202, 255, 0.08));
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(circle at 20% 0%, var(--body-radial-a), transparent 24%),
    radial-gradient(circle at 85% 10%, var(--body-radial-b), transparent 20%),
    radial-gradient(circle at 50% 100%, var(--body-radial-c), transparent 24%),
    linear-gradient(180deg, var(--body-grad-start) 0%, var(--body-grad-mid) 38%, var(--body-grad-end) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: var(--grid-mask);
  animation: gridDrift 180s linear infinite;
}

.landing-shell {
  position: relative;
  width: min(1180px, calc(100% - 32px));
  margin: 20px auto 40px;
  padding-top: 96px;
  display: grid;
  gap: 22px;
}

.topbar,
.hero,
.process-section,
.detail-section,
.systems-section,
.benefits-section,
.cta-section,
.footer-card {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow), var(--glow);
  backdrop-filter: blur(22px);
}

.topbar::before,
.hero::before,
.detail-section::before,
.process-section::before,
.systems-section::before,
.benefits-section::before,
.cta-section::before,
.footer-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 180px;
  height: 1px;
  background: linear-gradient(90deg, rgba(122, 240, 255, 0.8), transparent);
}

.topbar {
  position: sticky;
  top: 12px;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 18px;
  background: var(--topbar-bg);
}

.brand-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
}

.brand-kicker,
.eyebrow,
.stat-label,
.section-text,
.top-links a {
  letter-spacing: 0.14em;
}

.brand-kicker,
.eyebrow,
.stat-label {
  text-transform: uppercase;
  font-size: 0.74rem;
  font-weight: 800;
}

.brand-kicker,
.eyebrow { color: var(--accent); }

.brand-kicker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 116px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--brand-kicker-bg);
  border: 1px solid var(--line-strong);
  box-shadow: var(--brand-kicker-shadow);
}

.top-links {
  display: flex;
  gap: 10px;
  flex-wrap: nowrap;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.top-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.top-action:hover {
  transform: translateY(-1px);
}

.top-action.primary-action {
  color: var(--accent-ink);
  background: linear-gradient(135deg, var(--accent), var(--brand));
  box-shadow: 0 10px 28px rgba(0, 194, 255, 0.24);
}

.top-action.secondary-action {
  color: var(--text);
  background: var(--panel-bg-strong);
  border: 1px solid var(--panel-border-strong);
}

.top-links a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--panel-bg-soft);
  border: 1px solid var(--panel-border);
  color: var(--text);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.top-links a:hover {
  transform: translateY(-1px);
  border-color: var(--line-strong);
  background: var(--panel-hover-bg);
  box-shadow: var(--panel-hover-shadow);
}

.nav-glyph {
  position: relative;
  display: inline-block;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

.nav-glyph-systems::before,
.nav-glyph-process::before,
.nav-glyph-process::after,
.nav-glyph-access::before,
.nav-glyph-access::after {
  content: "";
  position: absolute;
}

.nav-glyph-systems::before {
  top: 1px;
  left: 1px;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 10px 0 0 var(--brand), 0 10px 0 var(--brand-deep), 10px 10px 0 var(--accent);
}

.nav-glyph-process::before {
  top: 8px;
  left: 2px;
  width: 14px;
  height: 2px;
  background: var(--accent);
}

.nav-glyph-process::after {
  top: 4px;
  right: 1px;
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
  transform: rotate(45deg);
}

.nav-glyph-access::before {
  top: 2px;
  left: 5px;
  width: 8px;
  height: 7px;
  border: 2px solid var(--accent);
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
}

.nav-glyph-access::after {
  top: 8px;
  left: 2px;
  width: 14px;
  height: 9px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--accent), var(--brand));
}

.hero {
  display: grid;
  grid-template-columns: 1.5fr 0.9fr;
  gap: 24px;
  padding: 34px;
  background: var(--hero-bg);
  transform: translateY(var(--hero-parallax, 0px));
  transition: transform 120ms linear;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: var(--hero-sheen);
  transform: translateX(-120%);
  animation: heroSweep 1.4s ease-out 0.6s forwards;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(1.9rem, 3.2vw, 3.3rem);
  line-height: 0.98;
  max-width: 15ch;
  text-wrap: balance;
}

.hero-text,
.section-text,
.process-card p,
.system-card p,
.benefit-card p,
.access-card p,
.detail-card p {
  color: var(--muted);
  line-height: 1.7;
}

.hero-text {
  margin: 18px 0 0;
  max-width: 66ch;
}

.hero-subtext {
  margin: 14px 0 0;
  max-width: 62ch;
  color: var(--hero-subtext);
  line-height: 1.6;
}

.section-text {
  margin: 14px 0 0;
  max-width: 72ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 14px 20px;
  text-decoration: none;
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.primary-btn:hover,
.secondary-btn:hover {
  transform: translateY(-1px);
}

.primary-btn {
  color: var(--accent-ink);
  background: linear-gradient(135deg, var(--accent), var(--brand));
  box-shadow: 0 10px 28px rgba(0, 194, 255, 0.28);
}

.secondary-btn {
  color: var(--text);
  background: var(--panel-hover-bg);
  border: 1px solid var(--panel-border-strong);
}

.hero-note {
  margin-top: 16px;
  border-radius: var(--radius-md);
  padding: 14px 16px;
  background: var(--hero-note-bg);
  border: 1px solid var(--panel-border-strong);
  color: var(--hero-note-text);
  line-height: 1.6;
  font-weight: 600;
}

.vision-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.vision-strip span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--badge-text);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-panel {
  display: grid;
  gap: 12px;
}

.hero-stat {
  background: var(--stat-bg);
  border: 1px solid var(--stat-border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--stat-inner-shadow);
}

.stat-label {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.hero-stat strong {
  font-size: 1.08rem;
  line-height: 1.5;
}

.stat-system-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stat-system-chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  color: #fff;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.stat-system-chip.vc3d { background: linear-gradient(135deg, var(--vc3d), #5d7cff); }
.stat-system-chip.fues { background: linear-gradient(135deg, var(--fues), #ff7b6f); }
.stat-system-chip.fes { background: linear-gradient(135deg, var(--fes), var(--accent)); }
.stat-system-chip.router { background: linear-gradient(135deg, var(--router), var(--brand-deep)); }
.stat-system-chip.emirror { background: linear-gradient(135deg, var(--emirror), #00c2ff); }

.hero-orbit {
  position: relative;
  min-height: 240px;
  margin-top: 8px;
  border-radius: 26px;
  background: var(--orbit-bg);
  border: 1px solid var(--orbit-border);
  overflow: hidden;
  transform: perspective(900px) rotateX(16deg) rotateY(var(--orbit-tilt, 0deg));
  transition: transform 200ms ease-out;
}

.orbit-core,
.orbit-ring,
.orbit-node { position: absolute; }

.orbit-core {
  top: 50%;
  left: 50%;
  width: 24px;
  height: 24px;
  margin: -12px 0 0 -12px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--orbit-core-white) 0%, var(--accent) 40%, rgba(44, 224, 255, 0.1) 100%);
  box-shadow: var(--orbit-core-shadow);
}

.orbit-ring {
  top: 50%;
  left: 50%;
  border: 1px solid var(--orbit-ring-line);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit-ring-a { width: 112px; height: 112px; animation: orbitSpin 12s linear infinite; }
.orbit-ring-b { width: 176px; height: 176px; border-style: dashed; animation: orbitSpinReverse 22s linear infinite; }

.orbit-node {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--emirror));
  box-shadow: var(--orbit-node-shadow);
}

.orbit-node-a { top: 26px; left: 50%; margin-left: -5px; animation: nodePulse 3.8s ease-in-out infinite; }
.orbit-node-b { right: 38px; top: 50%; margin-top: -5px; animation: nodePulse 4.4s ease-in-out infinite 0.6s; }
.orbit-node-c { bottom: 32px; left: 34%; animation: nodePulse 5.1s ease-in-out infinite 1.2s; }

.process-section,
.detail-section,
.systems-section,
.benefits-section,
.cta-section,
.footer-card {
  padding: 28px;
}

.section-head h2,
.cta-card h2,
.footer-card h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.4vw, 2.6rem);
  line-height: 1.12;
}

.process-grid,
.detail-grid,
.systems-grid,
.benefits-grid,
.access-grid {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.process-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.detail-grid,
.systems-grid,
.benefits-grid,
.access-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.process-card,
.system-card,
.benefit-card,
.access-card,
.cta-card,
.detail-card {
  background: var(--surface-strong);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--card-inner-shadow);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.process-link {
  text-decoration: none;
  color: inherit;
}

.process-card:hover,
.process-link:hover,
.system-card:hover,
.benefit-card:hover,
.access-card:hover,
.cta-card:hover,
.detail-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--card-hover-shadow);
}

.step,
.system-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 54px;
  border-radius: 999px;
  padding: 7px 12px;
  font-weight: 800;
  font-size: 0.85rem;
}

.step {
  color: var(--accent-ink);
  background: linear-gradient(135deg, var(--accent), var(--emirror));
}

.system-tag { color: #fff; }
.vc3d .system-tag { background: linear-gradient(135deg, var(--vc3d), #5d7cff); }
.fues .system-tag { background: linear-gradient(135deg, var(--fues), #ff7b6f); }
.fes .system-tag { background: linear-gradient(135deg, var(--fes), var(--accent)); }
.ess .system-tag { background: linear-gradient(135deg, var(--fes), var(--accent)); }
.router .system-tag { background: linear-gradient(135deg, var(--router), var(--brand-deep)); }
.emirror .system-tag { background: linear-gradient(135deg, var(--emirror), #00c2ff); }

.system-card {
  position: relative;
  overflow: hidden;
  background: var(--system-card-bg);
  transform-style: preserve-3d;
  transform: translate3d(var(--card-shift-x, 0px), var(--card-shift-y, 0px), 0);
}

.system-card::after {
  content: "";
  position: absolute;
  top: var(--card-glow-shift, 50%);
  right: -20%;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  opacity: 0;
  filter: blur(16px);
  transform: translateY(-50%);
  transition: opacity 420ms ease;
}

.system-card:hover::after {
  opacity: 0.24;
}

.vc3d::after { background: var(--vc3d); }
.fues::after { background: var(--fues); }
.fes::after { background: var(--fes); }
.ess::after { background: var(--fes); }
.router::after { background: var(--router); }
.emirror::after { background: var(--emirror); }

.system-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.system-icon {
  position: relative;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: var(--system-icon-bg);
  border: 1px solid var(--system-icon-border);
  box-shadow: var(--system-icon-shadow);
}

.system-icon::before,
.system-icon::after { content: ""; position: absolute; }

.system-icon-vc3d::before {
  top: 10px;
  left: 10px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--vc3d);
  box-shadow: 12px 0 0 var(--accent), 0 12px 0 var(--brand), 12px 12px 0 #fff;
}

.system-icon-fues::before {
  top: 11px;
  left: 8px;
  width: 18px;
  height: 10px;
  border-radius: 8px 8px 4px 4px;
  background: linear-gradient(135deg, #fff, #a7dfff);
}

.system-icon-fues::after {
  top: 16px;
  right: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--fues);
  box-shadow: 0 0 12px rgba(255, 79, 109, 0.6);
}

.system-icon-router::before {
  bottom: 10px;
  left: 10px;
  width: 22px;
  height: 12px;
  border-radius: 10px 10px 4px 4px;
  border: 2px solid var(--router);
  border-bottom: 0;
}

.system-icon-router::after {
  top: 8px;
  left: 19px;
  width: 2px;
  height: 18px;
  background: linear-gradient(180deg, #fff, var(--router));
}

.system-icon-fes::before {
  top: 9px;
  left: 9px;
  width: 20px;
  height: 20px;
  border-top: 3px solid var(--fes);
  border-left: 3px solid var(--fes);
  border-radius: 10px 0 0 0;
}

.system-icon-ess::before {
  top: 9px;
  left: 9px;
  width: 20px;
  height: 20px;
  border-top: 3px solid var(--fes);
  border-left: 3px solid var(--fes);
  border-radius: 10px 0 0 0;
}

.system-icon-fes::after {
  right: 8px;
  bottom: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--fes), #fff);
  box-shadow: 0 0 12px rgba(255, 179, 87, 0.45);
}

.system-icon-ess::after {
  right: 8px;
  bottom: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--fes), #fff);
  box-shadow: 0 0 12px rgba(255, 179, 87, 0.45);
}

.system-icon-emirror::before {
  top: 11px;
  left: 8px;
  width: 10px;
  height: 18px;
  border-radius: 8px 8px 6px 6px;
  background: linear-gradient(180deg, var(--emirror), #7affea);
  box-shadow: 16px 0 0 var(--accent);
}

.system-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.system-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--meta-chip-bg);
  border: 1px solid var(--meta-chip-border);
  color: var(--meta-chip-text);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.landing-shell {
  gap: 26px;
}

.topbar {
  padding: 16px 18px;
  border-color: var(--hero-outline);
  box-shadow: var(--shadow), var(--glow), var(--topbar-ring);
}

.topbar::after {
  content: "";
  position: absolute;
  inset: auto 18px 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
  transform-origin: left center;
  transform: scaleX(calc(0.18 + var(--scroll-progress, 0) * 0.82));
}

.brand-link {
  gap: 14px;
}

.brand-kicker {
  min-width: 0;
  min-height: 34px;
  padding: 0 12px;
  background: var(--signal-pill-bg);
  border-color: var(--signal-pill-border);
  box-shadow: none;
  color: var(--signal-pill-text);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
}

.brand-wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.06em;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.2vw, 1.85rem);
  line-height: 1;
  letter-spacing: -0.07em;
  text-transform: none;
}

.brand-core {
  color: var(--text);
}

.brand-mark {
  background: linear-gradient(135deg, var(--fues), var(--fes) 55%, var(--accent));
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
}

.top-links {
  padding: 6px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-solid) 74%, transparent);
  border: 1px solid var(--panel-border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.top-links a,
.top-action,
.primary-btn,
.secondary-btn {
  min-height: 48px;
}

.top-links a {
  border: 0;
  background: transparent;
}

.top-actions {
  gap: 12px;
}

.hero {
  grid-template-columns: minmax(0, 1.36fr) minmax(320px, 0.94fr);
  gap: 22px;
  padding: 40px;
  border-color: var(--hero-outline);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.02), transparent 42%),
    var(--hero-bg);
}

.hero-copy {
  display: grid;
  align-content: start;
}

.hero-signal-strip,
.vision-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-signal-strip {
  margin-bottom: 18px;
}

.hero-signal-strip span,
.vision-strip span {
  min-height: 34px;
  padding: 0 12px;
  background: var(--signal-pill-bg);
  border: 1px solid var(--signal-pill-border);
  color: var(--signal-pill-text);
  font-family: var(--font-mono);
  font-size: 0.69rem;
  letter-spacing: 0.14em;
  animation: none;
}

.eyebrow,
.stat-label {
  font-family: var(--font-mono);
  letter-spacing: 0.18em;
}

.hero-copy h1,
.section-head h2,
.cta-card h2,
.footer-card h2,
.process-card h3,
.detail-card h3,
.system-card h3,
.benefit-card h3,
.access-card h3 {
  font-family: var(--font-display);
  letter-spacing: -0.06em;
}

.hero-copy h1 {
  font-size: clamp(3rem, 6.8vw, 5.9rem);
  line-height: 0.9;
  max-width: 10.5ch;
  margin-top: 4px;
}

.hero-text {
  font-size: 1.04rem;
  max-width: 58ch;
}

.hero-subtext {
  max-width: 48ch;
}

.hero-summary-card {
  display: grid;
  gap: 8px;
  max-width: 36rem;
  margin-top: 18px;
  padding: 18px 20px;
  border-radius: 22px;
  border: 1px solid var(--summary-border);
  background: var(--summary-bg), var(--surface-solid-light);
  box-shadow: var(--hero-panel-shadow);
}

.hero-summary-label {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.69rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-summary-card strong {
  font-size: 1.02rem;
  line-height: 1.6;
}

.hero-actions {
  margin-top: 26px;
  gap: 14px;
}

.secondary-btn,
.top-action.secondary-action {
  background: color-mix(in srgb, var(--surface-solid-soft) 92%, transparent);
}

.hero-note {
  max-width: 36rem;
  margin-top: 18px;
  background: color-mix(in srgb, var(--hero-note-bg) 92%, var(--surface-solid-light) 8%);
}

.hero-panel {
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 14px;
  align-content: start;
}

.hero-stat {
  background: color-mix(in srgb, var(--surface-solid-light) 92%, transparent);
  box-shadow: var(--hero-panel-shadow), var(--stat-inner-shadow);
  animation: none;
}

.hero-stat-systems {
  grid-column: 1 / -1;
  padding: 22px;
}

.hero-metrics-grid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 14px;
}

.hero-stat-compact {
  grid-column: span 6;
  min-height: 144px;
}

.hero-stat-compact strong {
  font-size: 0.98rem;
  line-height: 1.62;
}

.hero-orbit-card {
  grid-column: 1 / -1;
  min-height: 240px;
  margin-top: 0;
  box-shadow: var(--hero-panel-shadow);
}

.orbit-caption {
  position: absolute;
  z-index: 2;
  top: 18px;
  left: 18px;
  display: grid;
  gap: 4px;
}

.orbit-caption span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.orbit-caption strong {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: -0.04em;
}

.process-section,
.detail-section,
.systems-section,
.benefits-section,
.cta-section,
.footer-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 28%),
    color-mix(in srgb, var(--surface-solid) 94%, transparent);
}

.section-head {
  display: grid;
  gap: 10px;
  max-width: var(--section-head-max);
}

.section-head h2,
.cta-card h2,
.footer-card h2 {
  font-size: clamp(1.85rem, 3vw, 2.8rem);
  line-height: 1;
  max-width: 15ch;
}

.process-grid,
.detail-grid,
.systems-grid,
.benefits-grid,
.access-grid {
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-flow: dense;
  gap: 14px;
}

.process-card,
.system-card,
.benefit-card,
.access-card,
.cta-card,
.detail-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 42%),
    color-mix(in srgb, var(--surface-solid-light) 95%, transparent);
  border-radius: 26px;
}

.process-card,
.detail-card,
.benefit-card,
.access-card {
  display: grid;
  align-content: start;
  gap: 0;
}

.process-card {
  grid-column: span 3;
}

.detail-card {
  grid-column: span 6;
}

.systems-grid {
  align-items: stretch;
}

.system-card {
  display: grid;
  grid-column: span 4;
  padding: 0;
}

.system-head {
  align-items: flex-start;
}

.system-tag,
.step {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
}

.system-icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
}

.system-card h3,
.process-card h3,
.detail-card h3,
.benefit-card h3,
.access-card h3 {
  margin: 0;
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  line-height: 1.02;
}

.system-card h3 {
  margin-top: 0;
  max-width: 12ch;
}

.system-card p,
.process-card p,
.detail-card p,
.benefit-card p,
.access-card p {
  margin: 0;
}

.system-meta {
  margin-top: 0;
  padding-top: 0;
}

.benefit-card {
  grid-column: span 4;
}

.cta-card {
  display: grid;
  gap: 22px;
  padding: 30px;
  background: var(--cta-grid-highlight), color-mix(in srgb, var(--surface-solid-light) 96%, transparent);
}

.access-grid > * {
  grid-column: span 6;
}

.footer-card {
  padding-top: 34px;
}

.hero,
.process-section,
.detail-section,
.systems-section,
.benefits-section,
.cta-section,
.footer-card {
  overflow: visible;
}

html[data-mode="light"] .top-links a:hover,
html[data-mode="light"] .top-action.secondary-action:hover,
html[data-mode="light"] .secondary-btn:hover {
  box-shadow: 0 10px 24px rgba(24, 95, 149, 0.1);
}

html[data-mode="light"] .system-card::after {
  opacity: 0.12;
}

.hero {
  transform: translateY(var(--hero-parallax, 0px)) perspective(1200px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg));
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.hero-stat,
.process-card,
.detail-card,
.system-card,
.benefit-card,
.access-card,
.cta-card,
.hero-orbit-card {
  --lift-y: 0px;
  transform: perspective(1100px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg))
    translate3d(var(--card-shift-x, 0px), calc(var(--card-shift-y, 0px) + var(--lift-y)), 0);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
  will-change: transform;
}

.hero-stat:hover,
.process-card:hover,
.detail-card:hover,
.system-card:hover,
.benefit-card:hover,
.access-card:hover,
.cta-card:hover,
.hero-orbit-card:hover {
  --lift-y: -6px;
  transform: perspective(1100px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg))
    translate3d(var(--card-shift-x, 0px), calc(var(--card-shift-y, 0px) + var(--lift-y)), 0);
}

.hero-stat-compact {
  padding: 0;
}

.hero-stat-disclosure > .disclosure-summary,
.hero-stat-disclosure > .disclosure-body {
  padding-left: 18px;
  padding-right: 18px;
}

.hero-stat-disclosure > .disclosure-summary {
  padding-top: 18px;
  padding-bottom: 16px;
}

.hero-stat-disclosure > .disclosure-body {
  padding-bottom: 18px;
}

.hero-stat-summary {
  display: grid;
  gap: 8px;
}

.hero-stat-summary strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.section-disclosure,
.hero-disclosure,
.card-disclosure {
  width: min(100%, 38rem);
  margin: 0;
  border-radius: 20px;
  border: 1px solid var(--panel-border);
  background: color-mix(in srgb, var(--surface-solid-light) 90%, transparent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.process-card .card-disclosure,
.detail-card .card-disclosure,
.benefit-card .card-disclosure,
.access-card .card-disclosure,
.system-card .card-disclosure,
.hero-stat-disclosure {
  width: 100%;
}

.disclosure-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.disclosure-summary:hover,
.stack-summary:hover {
  background: color-mix(in srgb, var(--surface-solid-soft) 84%, transparent);
}

.disclosure-summary::-webkit-details-marker {
  display: none;
}

.disclosure-label {
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.71rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.disclosure-icon {
  position: relative;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  border-radius: 50%;
  border: 1px solid var(--panel-border-strong);
}

.disclosure-icon::before,
.disclosure-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 1.5px;
  background: var(--accent);
  border-radius: 999px;
  transform: translate(-50%, -50%);
}

.disclosure-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

details[open] > .disclosure-summary .disclosure-icon::after {
  opacity: 0;
}

.disclosure-body {
  padding: 0 16px 16px;
}

.disclosure-body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.hero-disclosure {
  margin-top: 18px;
  background: color-mix(in srgb, var(--surface-solid-light) 94%, transparent);
  border-color: var(--summary-border);
}

.hero-disclosure-body {
  display: grid;
  gap: 14px;
}

.hero-disclosure .hero-subtext {
  margin: 0;
}

.hero-disclosure .hero-summary-card,
.hero-disclosure .hero-note {
  margin-top: 0;
  max-width: none;
}

.section-head .section-disclosure {
  margin-top: 6px;
}

.footer-card .section-disclosure {
  margin-top: 10px;
}

.process-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.process-jump {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: color-mix(in srgb, var(--surface-solid-soft) 88%, transparent);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-decoration: none;
  text-transform: uppercase;
}

.process-jump:hover {
  border-color: var(--line-strong);
  background: color-mix(in srgb, var(--panel-hover-bg) 92%, transparent);
}

.process-card,
.detail-card,
.benefit-card,
.access-card,
.system-card {
  gap: 14px;
}

.system-card .card-disclosure {
  order: 3;
}

.system-meta {
  order: 4;
}

.stack-card {
  width: 100%;
  min-height: 0;
  padding: 0;
  position: relative;
  overflow: visible !important;
}

.stack-summary {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.stack-summary::-webkit-details-marker {
  display: none;
}

.stack-copy {
  display: grid;
  gap: 4px;
}

.stack-copy h3 {
  margin: 0;
}

.stack-summary-label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.stack-corner {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: color-mix(in srgb, var(--surface-solid-soft) 84%, transparent);
}

.stack-corner::before,
.stack-corner::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 1.5px;
  background: var(--accent);
  border-radius: 999px;
  transform: translate(-50%, -50%);
}

.stack-corner::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

details[open] > .stack-summary .stack-corner::after {
  opacity: 0;
}

.stack-body {
  display: grid;
  gap: 14px;
  padding: 0 18px 18px;
}

.stack-body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

details.stack-card[open] {
  border-color: var(--line-strong);
  box-shadow: var(--hero-panel-shadow), var(--card-inner-shadow);
}

.process-card-top {
  padding-right: 48px;
}

.process-card .stack-body,
.detail-card .stack-body,
.benefit-card .stack-body,
.access-card .stack-body {
  padding-top: 0;
}

.system-summary {
  display: grid;
  gap: 12px;
  padding-right: 48px;
}

.system-card .stack-summary {
  padding-bottom: 14px;
}

.system-card .stack-body {
  gap: 16px;
}

.process-jump {
  margin-top: 4px;
}

@media (hover: hover) and (pointer: fine) and (min-width: 720px) {
  .section-head,
  .footer-card,
  .hero-copy,
  .hero-metrics-grid {
    position: relative;
    overflow: visible;
  }

  .section-disclosure,
  .hero-disclosure,
  .hero-stat-disclosure,
  .stack-card {
    position: relative;
    overflow: visible;
  }

  .section-disclosure > .disclosure-body,
  .hero-disclosure > .disclosure-body,
  .hero-stat-disclosure > .disclosure-body,
  .stack-card > .stack-body {
    position: absolute;
    left: 0;
    top: calc(100% + 10px);
    z-index: 30;
    width: min(38rem, calc(100vw - 96px));
    padding: 18px 18px 18px;
    border-radius: 22px;
    border: 1px solid var(--panel-border-strong);
    background: color-mix(in srgb, var(--surface-solid-light) 96%, transparent);
    box-shadow: 0 32px 70px rgba(2, 10, 20, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(22px);
    opacity: 0;
    transform: translateY(-8px) scale(0.985);
    transform-origin: top left;
    pointer-events: none;
    visibility: hidden;
    transition:
      opacity 260ms ease,
      transform 320ms cubic-bezier(0.2, 0.8, 0.2, 1),
      visibility 320ms ease;
  }

  .stack-card > .stack-body {
    width: calc(100% + 24px);
    min-width: 100%;
  }

  .hero-disclosure > .disclosure-body {
    width: min(40rem, calc(100vw - 96px));
  }

  .hero-stat-disclosure > .disclosure-body {
    width: calc(100% + 8px);
    min-width: 100%;
  }

  .section-head > .section-disclosure > .disclosure-body,
  .footer-card > .section-disclosure > .disclosure-body {
    width: min(44rem, calc(100vw - 96px));
  }

  details[open] > .disclosure-body,
  details[open] > .stack-body,
  details:hover > .disclosure-body,
  details:hover > .stack-body {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
    visibility: visible;
  }

  details[open],
  details:hover {
    z-index: 35;
  }

  .stack-card[open],
  .stack-card:hover,
  .hero-stat-disclosure[open],
  .hero-stat-disclosure:hover {
    box-shadow: var(--hero-panel-shadow), var(--card-inner-shadow);
    border-color: var(--line-strong);
  }

  .section-disclosure,
  .hero-disclosure {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
  }

  .section-disclosure > .disclosure-summary,
  .hero-disclosure > .disclosure-summary {
    width: fit-content;
    min-width: 220px;
    border-radius: 999px;
    border: 1px solid var(--panel-border);
    background: color-mix(in srgb, var(--surface-solid-soft) 88%, transparent);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  }

  .hero-disclosure {
    margin-top: 18px;
  }
}

@media (hover: hover) and (pointer: fine) and (min-width: 720px) {
  .has-floating-preview .section-disclosure,
  .has-floating-preview .hero-disclosure {
    width: auto;
    background: transparent;
    border-color: transparent;
    box-shadow: none;
  }

  .has-floating-preview .section-disclosure > .disclosure-summary,
  .has-floating-preview .hero-disclosure > .disclosure-summary {
    width: fit-content;
    min-width: 0;
    padding: 8px 30px 8px 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
  }

  .has-floating-preview .section-disclosure > .disclosure-body,
  .has-floating-preview .hero-disclosure > .disclosure-body,
  .has-floating-preview .hero-stat-disclosure > .disclosure-body,
  .has-floating-preview .stack-card > .stack-body {
    display: none !important;
  }

  .has-floating-preview .disclosure-summary,
  .has-floating-preview .stack-summary {
    transition:
      color 420ms cubic-bezier(0.22, 1, 0.36, 1),
      background 420ms cubic-bezier(0.22, 1, 0.36, 1),
      transform 420ms cubic-bezier(0.22, 1, 0.36, 1),
      opacity 420ms cubic-bezier(0.22, 1, 0.36, 1);
  }

  .has-floating-preview .disclosure-summary:hover,
  .has-floating-preview .stack-summary:hover {
    background: transparent;
  }

  .has-floating-preview .disclosure-label {
    color: color-mix(in srgb, var(--text) 78%, var(--muted));
    text-shadow: 0 0 0 rgba(0, 0, 0, 0);
    transition:
      color 420ms cubic-bezier(0.22, 1, 0.36, 1),
      text-shadow 520ms cubic-bezier(0.22, 1, 0.36, 1),
      opacity 420ms cubic-bezier(0.22, 1, 0.36, 1);
  }

  .has-floating-preview .section-disclosure > .disclosure-summary .disclosure-icon,
  .has-floating-preview .hero-disclosure > .disclosure-summary .disclosure-icon {
    width: 16px;
    height: 16px;
    border: 0;
    border-radius: 0;
    opacity: 0.48;
    transition:
      opacity 420ms cubic-bezier(0.22, 1, 0.36, 1),
      transform 520ms cubic-bezier(0.22, 1, 0.36, 1);
  }

  .has-floating-preview .section-disclosure > .disclosure-summary .disclosure-icon::before,
  .has-floating-preview .section-disclosure > .disclosure-summary .disclosure-icon::after,
  .has-floating-preview .hero-disclosure > .disclosure-summary .disclosure-icon::before,
  .has-floating-preview .hero-disclosure > .disclosure-summary .disclosure-icon::after {
    width: 10px;
    height: 1.5px;
    background: color-mix(in srgb, var(--accent) 82%, var(--text));
  }

  .has-floating-preview details[data-preview-active="true"] > .disclosure-summary .disclosure-label,
  .has-floating-preview details[data-preview-active="true"] > .stack-summary .stack-summary-label {
    color: var(--text);
    text-shadow: 0 0 18px rgba(122, 240, 255, 0.12);
  }

  .has-floating-preview .section-disclosure[data-preview-active="true"] > .disclosure-summary,
  .has-floating-preview .hero-disclosure[data-preview-active="true"] > .disclosure-summary {
    transform: translateX(4px);
  }

  .has-floating-preview .section-disclosure[data-preview-active="true"] > .disclosure-summary .disclosure-icon,
  .has-floating-preview .hero-disclosure[data-preview-active="true"] > .disclosure-summary .disclosure-icon,
  .has-floating-preview details[data-preview-active="true"] > .stack-summary .stack-corner {
    opacity: 0.9;
    transform: translateY(-1px) scale(0.96);
  }

  .has-floating-preview .section-disclosure[data-preview-active="true"] > .disclosure-summary .disclosure-icon::after,
  .has-floating-preview .hero-disclosure[data-preview-active="true"] > .disclosure-summary .disclosure-icon::after,
  .has-floating-preview details[data-preview-active="true"] > .stack-summary .stack-corner::after {
    opacity: 0;
  }

  .has-floating-preview .stack-card,
  .has-floating-preview .hero-stat-disclosure {
    transition:
      border-color 420ms cubic-bezier(0.22, 1, 0.36, 1),
      box-shadow 520ms cubic-bezier(0.22, 1, 0.36, 1),
      background 420ms cubic-bezier(0.22, 1, 0.36, 1);
  }

  .has-floating-preview .stack-card[data-preview-active="true"],
  .has-floating-preview .hero-stat-disclosure[data-preview-active="true"] {
    border-color: color-mix(in srgb, var(--line-strong) 52%, transparent);
    box-shadow: 0 24px 48px rgba(2, 10, 20, 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  }

  .hover-preview-layer {
    position: fixed;
    inset: 0;
    z-index: 120;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
      opacity 520ms cubic-bezier(0.22, 1, 0.36, 1),
      visibility 520ms cubic-bezier(0.22, 1, 0.36, 1);
  }

  .hover-preview-layer.is-visible {
    opacity: 1;
    visibility: visible;
  }

  .hover-preview-card {
    position: absolute;
    left: 0;
    top: 0;
    max-width: calc(100vw - 48px);
    max-height: calc(100dvh - 48px);
    overflow: auto;
    overscroll-behavior: contain;
    padding: 22px 24px;
    border-radius: 28px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 32%),
      color-mix(in srgb, var(--surface-solid-light) 84%, transparent);
    box-shadow:
      0 36px 96px rgba(2, 10, 20, 0.18),
      0 8px 30px rgba(2, 10, 20, 0.08),
      inset 0 1px 0 rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(28px) saturate(120%);
    opacity: 0;
    pointer-events: auto;
    transform: translate3d(0, 20px, 0) scale(0.985);
    transition:
      opacity 520ms cubic-bezier(0.22, 1, 0.36, 1),
      transform 620ms cubic-bezier(0.22, 1, 0.36, 1),
      box-shadow 620ms cubic-bezier(0.22, 1, 0.36, 1);
  }

  .hover-preview-card::-webkit-scrollbar {
    width: 8px;
  }

  .hover-preview-card::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: color-mix(in srgb, var(--accent) 36%, transparent);
  }

  .hover-preview-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    background: linear-gradient(135deg, rgba(122, 240, 255, 0.07), transparent 42%, rgba(255, 255, 255, 0.05));
    opacity: 0.72;
  }

  .hover-preview-layer.is-visible .hover-preview-card {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }

  .hover-preview-layer[data-kind="hero"] .hover-preview-card,
  .hover-preview-layer[data-kind="section"] .hover-preview-card {
    padding: 24px 26px;
  }

  .hover-preview-content {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 14px;
  }

  .hover-preview-content p {
    margin: 0;
    color: color-mix(in srgb, var(--text) 78%, var(--muted));
    line-height: 1.72;
  }

  .hover-preview-content .hero-subtext,
  .hover-preview-content .section-text {
    color: color-mix(in srgb, var(--text) 84%, var(--muted));
  }

  .hover-preview-content .hero-summary-card,
  .hover-preview-content .hero-note {
    max-width: none;
    margin-top: 0;
  }

  .hover-preview-content .system-meta {
    margin-top: 2px;
    padding-top: 0;
  }

  .hover-preview-content .process-jump {
    justify-self: start;
    margin-top: 2px;
    border-color: transparent;
    background: color-mix(in srgb, var(--surface-solid-soft) 78%, transparent);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  }

  .hover-preview-content .process-jump:hover {
    background: color-mix(in srgb, var(--panel-hover-bg) 88%, transparent);
  }
}

@media (hover: hover) and (pointer: fine) and (min-width: 720px) and (max-width: 899px) {
  .hover-preview-card {
    max-width: calc(100vw - 28px);
    max-height: calc(100dvh - 28px);
    padding: 18px 20px;
    border-radius: 24px;
  }

  .hover-preview-layer[data-kind="hero"] .hover-preview-card,
  .hover-preview-layer[data-kind="section"] .hover-preview-card {
    padding: 20px 22px;
  }
}

.reveal {
  opacity: 0;
  animation: revealIn 0.8s ease forwards;
}

.reveal-left { transform: translateX(-22px); }
.reveal-right { transform: translateX(22px); }
.reveal-up { transform: translateY(22px); }
.delay-1 { animation-delay: 0.12s; }
.delay-2 { animation-delay: 0.24s; }
.delay-3 { animation-delay: 0.36s; }
.delay-4 { animation-delay: 0.48s; }

@keyframes revealIn {
  to { opacity: 1; transform: translate(0, 0); }
}

@keyframes gridDrift {
  0% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(12px, 14px, 0); }
  100% { transform: translate3d(0, 0, 0); }
}

@keyframes heroSweep {
  0% { transform: translateX(-120%); opacity: 0; }
  30% { opacity: 0.9; }
  100% { transform: translateX(120%); opacity: 0; }
}

@keyframes orbitSpin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes orbitSpinReverse {
  from { transform: translate(-50%, -50%) rotate(360deg); }
  to { transform: translate(-50%, -50%) rotate(0deg); }
}

@keyframes nodePulse {
  0%, 100% { transform: scale(1); opacity: 0.7; box-shadow: 0 0 8px rgba(44, 224, 255, 0.2); }
  50% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 22px rgba(44, 224, 255, 0.5); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 32px;
  }

  .hero-copy h1 {
    max-width: 12ch;
  }

  .hero-panel,
  .hero-metrics-grid,
  .process-grid,
  .detail-grid,
  .systems-grid,
  .benefits-grid,
  .access-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-stat-systems,
  .hero-orbit-card {
    grid-column: 1 / -1;
  }

  .hero-stat-compact,
  .process-card,
  .detail-card,
  .system-card,
  .benefit-card,
  .access-grid > *,
  .cta-card {
    grid-column: auto;
  }

  .hero-orbit {
    min-height: 200px;
  }

  .topbar {
    flex-wrap: wrap;
  }

  .top-links {
    order: 3;
    width: 100%;
    justify-content: center;
  }

  .top-actions {
    width: 100%;
    justify-content: stretch;
  }

  .top-action {
    flex: 1 1 240px;
  }
}

@media (max-width: 640px) {
  .landing-shell {
    width: min(100% - 20px, 1180px);
    padding-top: 88px;
  }

  .topbar,
  .hero,
  .detail-section,
  .process-section,
  .systems-section,
  .benefits-section,
  .cta-section,
  .footer-card {
    border-radius: 22px;
  }

  .topbar { padding: 12px; }

  .brand-link {
    width: 100%;
    justify-content: space-between;
  }

  .brand-kicker {
    min-width: 0;
    padding: 0 10px;
  }

  .brand-wordmark {
    font-size: 1.2rem;
  }

  .hero {
    padding: 24px 20px;
  }

  .hero-signal-strip {
    margin-bottom: 14px;
  }

  .hero-copy h1 {
    max-width: none;
    font-size: clamp(2.45rem, 13vw, 4rem);
  }

  .hero-summary-card {
    padding: 16px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .top-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
  }

  .top-links a {
    width: 44px;
    min-width: 44px;
    padding: 0;
    justify-content: center;
  }

  .nav-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .hero-panel,
  .hero-metrics-grid,
  .process-grid,
  .detail-grid,
  .systems-grid,
  .benefits-grid,
  .access-grid {
    grid-template-columns: 1fr;
  }

  .hero-stat-systems,
  .hero-stat-compact,
  .hero-orbit-card,
  .process-card,
  .detail-card,
  .system-card,
  .benefit-card,
  .access-grid > * {
    grid-column: auto !important;
  }

  .hero-orbit { min-height: 170px; }
}