/* ============================================================
   BLUE SPARK — global design system
   Source of truth: brand/blue-spark-brand-bible.md v1.1
   Type: Space Grotesk (display) · Inter (body) · JetBrains Mono (mono)
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root {
  /* Deep Blue — the field behind the compass star */
  --deep-1: #06080F;
  --deep-2: #0F1F5C;
  --deep-3: #1E3A8A;
  --deep-4: #2E4DB8;
  --deep-5: #4068D1;
  /* Steel — the metallic ring */
  --steel-1: #F0F3F8;
  --steel-2: #C5CCD8;
  --steel-3: #8A93A4;
  --steel-4: #5C6473;
  --steel-5: #3D4452;
  --steel-6: #1F232C;
  /* Spark — the central point of light */
  --spark-warm: #FFF8E7;
  --spark-cool: #93C5FD;
  --spark-dim: #E0E8F4;
  /* Surfaces, status, neutrals */
  --ink: #0B0E1A;
  --paper: #FAFAF7;
  --paper-2: #F1F2EE;
  --rule: #E6E8EE;
  --muted: #6B6B72;
  --success: #4ADE80;
  --warn: #FCD34D;
  --error: #F87171;
  /* LCARS accents — status readouts only */
  --lcars-orange: #E69A4D;
  --lcars-teal: #4FA89A;
  /* Glass */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hi: rgba(255, 255, 255, 0.16);
  /* Shadows */
  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-deep: 0 12px 32px rgba(0, 0, 0, 0.5);
  --glow-warm: 0 0 24px rgba(255, 248, 231, 0.28), 0 0 64px rgba(255, 248, 231, 0.10);
  /* Motion */
  --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-sharp: 110ms;
  --dur-calm: 240ms;
  --dur-slow: 480ms;
  --dur-long: 800ms;
  /* Type */
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Consolas, monospace;
  /* Layout */
  --container: 1180px;
  --nav-h: 64px;
  --status-h: 30px;
}

/* ---------- 2. Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; }
html:focus-within { scroll-behavior: smooth; }
body {
  background: var(--deep-1);
  color: var(--spark-dim);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}
img, svg, video, canvas { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }
a { color: var(--spark-cool); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }
::selection { background: rgba(64, 104, 209, 0.45); color: var(--spark-warm); }
:focus-visible { outline: 2px solid var(--spark-cool); outline-offset: 3px; border-radius: 2px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* ---------- 3. Cosmos canvas background ---------- */
#cosmos {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  background: var(--deep-1);
}
body.no-webgl #cosmos { display: none; }
body.no-webgl::before {
  /* CSS fallback: deep radial field */
  content: "";
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(ellipse 80% 55% at 50% -10%, rgba(46, 77, 184, 0.28), transparent 60%),
    radial-gradient(ellipse 60% 45% at 85% 110%, rgba(15, 31, 92, 0.35), transparent 65%),
    var(--deep-1);
}
/* faint engineering grid over the cosmos */
.grid-veil {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(147, 197, 253, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(147, 197, 253, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, black 0%, transparent 75%);
}

/* ---------- 4. Typography ---------- */
.display-96, .display-64, .display-32, .display-18 {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--spark-warm);
}
.display-96 { font-size: clamp(2.6rem, 7.2vw, 6rem); line-height: 0.98; letter-spacing: -0.035em; }
.display-64 { font-size: clamp(2.1rem, 4.6vw, 4rem); line-height: 1.02; letter-spacing: -0.03em; }
.display-32 { font-size: clamp(1.5rem, 2.6vw, 2rem); line-height: 1.08; letter-spacing: -0.02em; }
.display-18 { font-size: 1.125rem; line-height: 1.4; letter-spacing: -0.01em; }
.lead { font-size: 1.125rem; line-height: 1.65; color: var(--spark-dim); max-width: 58ch; }
.body-text { max-width: 66ch; }
.muted { color: var(--muted); }
.gradient-text {
  background: linear-gradient(100deg, var(--spark-warm) 20%, var(--spark-cool) 55%, var(--deep-5) 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--spark-cool);
}
.mono { font-family: var(--font-mono); }
.mono-14 { font-family: var(--font-mono); font-size: 14px; letter-spacing: 0.02em; }
.mono-11 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel-3);
}
.tnum { font-variant-numeric: tabular-nums; }

/* ---------- 5. Layout ---------- */
.container { max-width: var(--container); margin-inline: auto; padding-inline: clamp(20px, 4vw, 40px); }
.section { padding-block: clamp(64px, 9vw, 120px); position: relative; }
.section-tight { padding-block: clamp(40px, 6vw, 72px); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(20px, 3vw, 40px); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2.4vw, 28px); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(14px, 2vw, 24px); }
.narrow { max-width: 760px; }
.section-head { margin-bottom: clamp(28px, 4vw, 48px); display: grid; gap: 12px; }
.rule-h { border: 0; border-top: 1px solid var(--glass-border); margin: 0; }

/* ---------- 6. Components ---------- */
/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 13px; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 14px 26px; border-radius: 4px; border: 1px solid transparent;
  cursor: pointer; text-decoration: none; position: relative;
  transition: transform var(--dur-sharp) var(--ease-out-quint),
              box-shadow var(--dur-calm) var(--ease-out-expo),
              background var(--dur-calm) var(--ease-out-expo),
              border-color var(--dur-calm) var(--ease-out-expo);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--spark-warm); color: var(--deep-1);
  box-shadow: var(--glow-warm), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}
.btn-primary:hover { box-shadow: 0 0 32px rgba(255, 248, 231, 0.42), 0 0 80px rgba(255, 248, 231, 0.14), inset 0 1px 0 rgba(255,255,255,0.9); }
.btn-secondary {
  background: transparent; color: var(--spark-dim);
  border-color: var(--glass-border-hi);
}
.btn-secondary:hover { border-color: var(--steel-2); color: var(--spark-warm); }
.btn-ghost {
  background: transparent; color: var(--spark-cool);
  border-color: rgba(147, 197, 253, 0.25);
}
.btn-ghost:hover { border-color: rgba(147, 197, 253, 0.55); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.link-quiet { color: var(--spark-dim); font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }
.link-quiet:hover { color: var(--spark-warm); }

/* Glass card */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: clamp(20px, 3vw, 32px);
  position: relative;
  transition: border-color var(--dur-calm) var(--ease-out-expo), transform var(--dur-calm) var(--ease-out-expo), background var(--dur-calm) var(--ease-out-expo);
}
.glass-card:hover { border-color: var(--glass-border-hi); background: rgba(255, 255, 255, 0.05); }
.glass-card h3 { color: var(--spark-warm); font-family: var(--font-display); font-weight: 500; font-size: 1.05rem; letter-spacing: -0.01em; margin-bottom: 10px; }

/* HUD corner brackets */
.hud { position: relative; }
.hud::before, .hud::after,
.hud > .hud-b::before, .hud > .hud-b::after {
  content: ""; position: absolute; width: 14px; height: 14px;
  border-color: rgba(147, 197, 253, 0.5); border-style: solid; border-width: 0;
  pointer-events: none;
}
.hud::before { top: -1px; left: -1px; border-top-width: 1px; border-left-width: 1px; }
.hud::after { top: -1px; right: -1px; border-top-width: 1px; border-right-width: 1px; }
.hud > .hud-b::before { bottom: -1px; left: -1px; border-bottom-width: 1px; border-left-width: 1px; }
.hud > .hud-b::after { bottom: -1px; right: -1px; border-bottom-width: 1px; border-right-width: 1px; }

/* Eyebrow pill */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--spark-cool);
  border: 1px solid rgba(147, 197, 253, 0.3);
  border-radius: 999px; padding: 6px 14px;
  background: rgba(147, 197, 253, 0.06);
}
.pill .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--spark-cool); }

/* Status dot */
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; position: relative; flex: none; }
.status-dot.ok { background: var(--success); box-shadow: 0 0 8px rgba(74, 222, 128, 0.7); }
.status-dot.warn { background: var(--warn); box-shadow: 0 0 8px rgba(252, 211, 77, 0.7); }
.status-dot.err { background: var(--error); box-shadow: 0 0 8px rgba(248, 113, 113, 0.7); }
.status-dot.cool { background: var(--spark-cool); box-shadow: 0 0 8px rgba(147, 197, 253, 0.7); }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th, .data-table td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--glass-border); vertical-align: top; }
.data-table th { font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--steel-3); }
.data-table td.mono, .data-table .num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* Code / hash block */
.code-block {
  font-family: var(--font-mono); font-size: 13px; line-height: 1.6;
  background: rgba(0, 0, 0, 0.45); border: 1px solid var(--glass-border);
  border-radius: 6px; padding: 16px 20px; overflow-x: auto; color: var(--spark-dim);
}
.code-block .cmt { color: var(--steel-4); }
.code-block .str { color: var(--success); }

/* Accordion */
details.acc { border: 1px solid var(--glass-border); border-radius: 6px; background: var(--glass-bg); overflow: hidden; }
details.acc + details.acc { margin-top: 12px; }
details.acc summary {
  cursor: pointer; list-style: none; padding: 18px 22px;
  font-family: var(--font-display); font-weight: 500; color: var(--spark-warm);
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  transition: background var(--dur-sharp) var(--ease-out-quint);
}
details.acc summary::-webkit-details-marker { display: none; }
details.acc summary::after { content: "+"; font-family: var(--font-mono); color: var(--spark-cool); font-size: 18px; transition: transform var(--dur-calm) var(--ease-out-expo); }
details.acc[open] summary::after { transform: rotate(45deg); }
details.acc summary:hover { background: rgba(255, 255, 255, 0.04); }
details.acc .acc-body { padding: 0 22px 20px; color: var(--spark-dim); }

/* Metrics */
.metric { display: grid; gap: 6px; }
.metric .metric-value { font-family: var(--font-display); font-weight: 600; font-size: clamp(2rem, 4vw, 3rem); color: var(--spark-warm); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.metric .metric-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--steel-3); }

/* Pratfall quote band */
.quote-band {
  border-block: 1px solid var(--glass-border);
  padding-block: clamp(48px, 7vw, 88px);
  text-align: center;
}
.quote-band blockquote { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.4rem, 3vw, 2.2rem); color: var(--spark-warm); letter-spacing: -0.02em; }

/* Timeline */
.timeline { position: relative; padding-left: 32px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 1px; background: linear-gradient(var(--deep-4), var(--glass-border)); }
.timeline-item { position: relative; padding-bottom: clamp(28px, 4vw, 44px); }
.timeline-item::before {
  content: ""; position: absolute; left: -28px; top: 7px; width: 9px; height: 9px;
  background: var(--deep-4); border: 1px solid var(--spark-cool);
  transform: rotate(45deg); box-shadow: 0 0 10px rgba(64, 104, 209, 0.6);
}
.timeline-item .when { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--spark-cool); margin-bottom: 6px; display: block; }

/* Icon strip (proof points) */
.proof-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.proof {
  border: 1px solid var(--glass-border); border-radius: 8px; background: var(--glass-bg);
  padding: 18px 16px; display: grid; gap: 10px; justify-items: start;
  transition: border-color var(--dur-calm) var(--ease-out-expo), transform var(--dur-calm) var(--ease-out-expo);
}
.proof:hover { border-color: rgba(147, 197, 253, 0.4); transform: translateY(-2px); }
.proof svg { width: 22px; height: 22px; stroke: var(--spark-cool); fill: none; stroke-width: 1.5; }
.proof .proof-title { font-family: var(--font-display); font-weight: 500; font-size: 0.92rem; color: var(--spark-warm); }
.proof p { font-size: 0.82rem; line-height: 1.5; color: var(--steel-2); }

/* Marquee telemetry strip */
.telemetry {
  overflow: hidden; border-block: 1px solid var(--glass-border);
  background: rgba(6, 8, 15, 0.55);
  padding-block: 10px; position: relative;
}
.telemetry-track {
  display: flex; gap: 48px; width: max-content;
  animation: marquee 46s linear infinite;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--steel-3); white-space: nowrap;
}
.telemetry-track b { color: var(--spark-cool); font-weight: 500; }
.telemetry-track .warm { color: var(--spark-warm); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 7. Chrome: status bar / nav / footer ---------- */
.topbar-status {
  height: var(--status-h);
  display: flex; align-items: center; gap: 12px;
  padding-inline: clamp(16px, 3vw, 32px);
  font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--steel-3);
  border-bottom: 1px solid var(--glass-border);
  background: rgba(6, 8, 15, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  position: relative; z-index: 60;
}
.topbar-status .right { margin-left: auto; color: var(--steel-4); }
.topbar-status .sep { color: var(--steel-6); }

.nav {
  position: sticky; top: 0; z-index: 50;
  height: var(--nav-h);
  display: flex; align-items: center; gap: 24px;
  padding-inline: clamp(16px, 3vw, 32px);
  background: rgba(6, 8, 15, 0.72);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand-star { width: 26px; height: 26px; filter: drop-shadow(0 0 6px rgba(64, 104, 209, 0.55)); }
.wordmark {
  font-family: var(--font-display); font-weight: 500; font-size: 17px;
  color: var(--spark-warm); letter-spacing: -0.01em; position: relative;
}
.k-wrap { position: relative; }
.spark-tip {
  position: absolute; top: -7px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 4px; border-radius: 50%; background: var(--spark-warm);
  box-shadow: 0 0 6px rgba(255, 248, 231, 0.9);
  animation: sparkPulse 3.2s ease-in-out infinite;
}
.nav-links { margin-left: auto; display: flex; align-items: center; gap: clamp(10px, 1.4vw, 20px); }
.nav-links a {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--steel-2); text-decoration: none; padding: 6px 2px; position: relative;
  transition: color var(--dur-sharp) var(--ease-out-quint);
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--spark-cool); transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-calm) var(--ease-out-expo);
}
.nav-links a:hover { color: var(--spark-warm); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a.active { color: var(--spark-warm); }
.nav-links a.active::after { transform: scaleX(1); }
.nav-links .nav-cta {
  color: var(--deep-1); background: var(--spark-warm);
  padding: 8px 16px; border-radius: 3px;
  box-shadow: 0 0 14px rgba(255, 248, 231, 0.25);
}
.nav-links .nav-cta::after { display: none; }
.nav-links .nav-cta:hover { box-shadow: 0 0 22px rgba(255, 248, 231, 0.45); }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--glass-border-hi); border-radius: 4px; padding: 9px 10px; cursor: pointer; }
.nav-toggle span { display: block; width: 18px; height: 1.5px; background: var(--spark-dim); margin: 4px 0; transition: transform var(--dur-calm) var(--ease-out-expo), opacity var(--dur-calm); }
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { transform: translateY(-5.5px) rotate(-45deg); }

.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 45;
  background: rgba(6, 8, 15, 0.92); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  padding: 120px clamp(24px, 8vw, 64px) 48px;
}
body.nav-open .mobile-menu { display: block; }
.mobile-menu nav { display: grid; gap: 4px; }
.mobile-menu a {
  font-family: var(--font-display); font-size: clamp(1.4rem, 6vw, 2rem); font-weight: 500;
  color: var(--spark-dim); text-decoration: none; padding: 10px 0;
  border-bottom: 1px solid var(--glass-border);
  display: flex; justify-content: space-between; align-items: baseline;
  opacity: 0; transform: translateY(10px);
  animation: menuIn var(--dur-slow) var(--ease-out-expo) forwards;
  animation-delay: calc(var(--i, 0) * 45ms);
}
.mobile-menu a:hover { color: var(--spark-warm); text-decoration: none; }
.mobile-menu a .idx { font-family: var(--font-mono); font-size: 11px; color: var(--steel-4); letter-spacing: 0.14em; }
@keyframes menuIn { to { opacity: 1; transform: none; } }

/* Scroll progress */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 100%;
  transform-origin: left; transform: scaleX(0); z-index: 70;
  background: linear-gradient(90deg, var(--deep-4), var(--spark-cool), var(--spark-warm));
  pointer-events: none;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--glass-border);
  background: rgba(6, 8, 15, 0.8);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  margin-top: clamp(64px, 9vw, 120px);
  position: relative; z-index: 1;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  padding-block: clamp(40px, 6vw, 72px);
}
.footer-brand p { color: var(--steel-3); font-size: 0.9rem; max-width: 34ch; margin-top: 12px; }
.footer-col h4 { font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; color: var(--steel-4); margin-bottom: 14px; }
.footer-col ul { list-style: none; padding: 0; display: grid; gap: 9px; }
.footer-col a { color: var(--steel-2); font-size: 0.88rem; text-decoration: none; }
.footer-col a:hover { color: var(--spark-warm); }
.footer-base {
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  border-top: 1px solid var(--glass-border);
  padding-block: 18px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; color: var(--steel-4);
}
.byben { color: var(--steel-3); letter-spacing: 0.22em; }

/* ---------- 8. Hero (shared) ---------- */
.hero {
  min-height: calc(100vh - var(--nav-h) - var(--status-h));
  display: flex; align-items: center;
  padding-block: clamp(48px, 7vw, 96px);
  position: relative; overflow: clip;
}
.hero-inner { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero-copy { display: grid; gap: 22px; justify-items: start; }
.hero-sub { color: var(--steel-2); max-width: 54ch; font-size: 1.08rem; line-height: 1.7; }
.hero-visual { display: grid; place-items: center; position: relative; }

/* Medallion stage */
.medallion-stage { position: relative; width: min(380px, 70vw); aspect-ratio: 1; display: grid; place-items: center; }
.medallion-glow {
  position: absolute; inset: 12%; border-radius: 50%;
  background: radial-gradient(circle, rgba(64, 104, 209, 0.35), transparent 65%);
  filter: blur(24px);
  animation: sparkPulse 3.2s ease-in-out infinite;
}
.medallion-ring { position: absolute; inset: 0; animation: spinSlow 60s linear infinite; opacity: 0.6; }
.medallion-ring.r2 { inset: 6%; animation-duration: 90s; animation-direction: reverse; opacity: 0.35; }
.medallion-img {
  width: 78%; height: auto; position: relative; z-index: 2;
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.55)) drop-shadow(0 0 32px rgba(64, 104, 209, 0.25));
  animation: floatY 7s ease-in-out infinite;
}
.scanline { position: absolute; inset: 6% 12%; border-radius: 50%; overflow: hidden; pointer-events: none; }
.scanline::after {
  content: ""; position: absolute; left: 0; right: 0; height: 22%;
  background: linear-gradient(180deg, transparent, rgba(147, 197, 253, 0.10), transparent);
  animation: scanY 5.5s var(--ease-out-quint) infinite;
}
@keyframes floatY { 0%, 100% { transform: translateY(-6px); } 50% { transform: translateY(8px); } }
@keyframes sparkPulse { 0%, 100% { opacity: 0.75; transform: scale(1); } 50% { opacity: 1; transform: scale(1.06); } }
@keyframes spinSlow { to { transform: rotate(360deg); } }
@keyframes scanY { 0% { top: -25%; } 55%, 100% { top: 105%; } }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }
.blink { animation: blink 1.6s steps(2, start) infinite; }

/* ---------- 9. Reveal system ---------- */
.split-word { display: inline-block; white-space: nowrap; }
.split-char { display: inline-block; }
[data-reveal] { will-change: transform, opacity; }
.js .anim [data-reveal] { opacity: 0; transform: translateY(18px); }
.js .anim [data-reveal].is-in { opacity: 1; transform: none; transition: opacity var(--dur-slow) var(--ease-out-expo), transform var(--dur-slow) var(--ease-out-expo); transition-delay: var(--d, 0ms); }

/* ---------- 10. View transitions (MPA) ---------- */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: vtOut 220ms var(--ease-out-quint) both; }
::view-transition-new(root) { animation: vtIn 260ms var(--ease-out-expo) both; }
@keyframes vtOut { to { opacity: 0; transform: translateY(-8px); } }
@keyframes vtIn { from { opacity: 0; transform: translateY(10px); } }

/* ---------- 11. Responsive ---------- */
@media (max-width: 1080px) {
  .proof-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .medallion-stage { width: min(240px, 56vw); }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
}
@media (max-width: 640px) {
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .topbar-status .right { display: none; }
}

/* ---------- 12. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .telemetry-track { animation: none; }
  .medallion-img, .medallion-ring, .medallion-glow, .scanline::after, .spark-tip { animation: none !important; }
  .js .anim [data-reveal] { opacity: 1; transform: none; }
  ::view-transition-old(root), ::view-transition-new(root) { animation: none; }
}