/* ============================================================================
   invent-r — legendary scroll-vault splash + public preview
   Ink + ember. A single-page scroll narrative: hero → live engine state →
   the judges → the WebGL vault → footer. Restraint over clutter. This is a
   $50M+ AI company splash, not a marketing site.
   Type: Geist (sans), JetBrains Mono (technical), Instrument Serif (accent).
   Vanilla CSS. No frameworks. No build step.
   ========================================================================== */

:root {
  --ink:        #0a0a0d;
  --ink-2:      #14141a;
  --ink-3:      #1f1f28;
  --ash:        #6b6b78;
  --bone:       #e8e8ec;
  --ember:      #ff6b35;
  --ember-2:    #ff8a5c;
  --ember-glow: rgba(255, 107, 53, 0.4);
  --brass:      #c9a55a;
  --brass-2:    #e7cd86;
  --brass-glow: rgba(201, 165, 90, 0.32);
  --blood:      #c41818;

  --line:       #27272a;
  --line-2:     #3a3a42;

  --mono:  "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans:  "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: "Instrument Serif", Georgia, serif;

  --ease:       cubic-bezier(0.22, 1, 0.36, 1);
  --ease-cubic: cubic-bezier(0.33, 0, 0.2, 1);

  --maxw: 1180px;
}

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

body.splash {
  margin: 0;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-variant-numeric: tabular-nums lining-nums;
  overflow-x: hidden;
}
body.has-cursor, body.has-cursor * { cursor: none !important; }

a { color: var(--ember); text-decoration: none; transition: color 150ms var(--ease); }
a:hover { color: var(--ember-2); }
::selection { background: var(--ember-glow); color: #fff; }
.muted { color: var(--ash); }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--ember);
}
.section-head { text-align: center; margin: 0 auto 48px; max-width: 760px; }
.dot { color: var(--ember); text-shadow: 0 0 22px var(--ember-glow); }
/* hero period: appears LAST with an ember bloom burst, breathes on a long cycle */
.hero-headline .dot {
  display: inline-block; transform-origin: 50% 80%;
  opacity: 0; animation: dotBloom 900ms var(--ease) 1100ms forwards;
}
@keyframes dotBloom {
  0% { opacity: 0; transform: scale(0.4); text-shadow: 0 0 0 rgba(255,107,53,0); filter: blur(6px); }
  55% { opacity: 1; transform: scale(1.5); text-shadow: 0 0 46px rgba(255,107,53,0.95), 0 0 14px rgba(255,107,53,0.8); filter: blur(0); }
  100% { opacity: 1; transform: scale(1); text-shadow: 0 0 22px var(--ember-glow); filter: blur(0); }
}
/* engine-tick: a slow inhale/exhale roughly once a minute (JS adds .ticking) */
.hero-headline .dot.ticking { animation: dotTick 4s var(--ease); }
@keyframes dotTick {
  0% { transform: scale(1); text-shadow: 0 0 22px rgba(255,107,53,0.4); }
  75% { transform: scale(1.18); text-shadow: 0 0 40px rgba(255,107,53,0.8), 0 0 16px rgba(255,107,53,0.7); }
  100% { transform: scale(1); text-shadow: 0 0 22px rgba(255,107,53,0.4); }
}

.scene { position: relative; }

/* ===================== SCROLL PROGRESS ===================== */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 200;
  background: linear-gradient(90deg, var(--ember), var(--ember-2));
  transform: scaleX(0); transform-origin: 0 50%;
  box-shadow: 0 0 12px var(--ember-glow);
  will-change: transform;
}

/* ===================== CUSTOM CURSOR ===================== */
.cursor, .cursor-ring { position: fixed; top: 0; left: 0; z-index: 300; pointer-events: none; display: none; }
body.has-cursor .cursor, body.has-cursor .cursor-ring { display: block; }
.cursor {
  width: 12px; height: 12px;
  background: var(--ember); border-radius: 50%;
  box-shadow: 0 0 10px var(--ember-glow);
  mix-blend-mode: screen;
}
.cursor::before, .cursor::after {
  content: ""; position: absolute; background: var(--ember); opacity: 0.9;
}
.cursor::before { left: 5px; top: -5px; width: 2px; height: 22px; }
.cursor::after { top: 5px; left: -5px; width: 22px; height: 2px; }
.cursor-ring {
  width: 28px; height: 28px; border: 1px solid var(--ember);
  border-radius: 50%; opacity: 0.4;
  transition: width 160ms var(--ease), height 160ms var(--ease), opacity 160ms var(--ease), box-shadow 160ms var(--ease);
}
.cursor-ring.hot {
  width: 40px; height: 40px; opacity: 0.8;
  box-shadow: 0 0 18px var(--ember-glow);
  margin: -6px;
}

/* ===================== MUTE TOGGLE ===================== */
.mute-toggle {
  position: fixed; top: 18px; right: 18px; z-index: 210;
  width: 40px; height: 40px;
  display: grid; place-items: center;
  background: rgba(20,20,26,0.7);
  border: 1px solid var(--line); border-radius: 10px;
  color: var(--ash); cursor: pointer;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}
.mute-toggle:hover { color: var(--ember); border-color: var(--line-2); }
.mute-toggle .ico-sound { display: none; color: var(--ember); }
.mute-toggle .ico-muted { display: block; }
.mute-toggle:not(.muted) .ico-sound { display: block; }
.mute-toggle:not(.muted) .ico-muted { display: none; }
.mute-toggle:not(.muted) { color: var(--ember); border-color: rgba(255,107,53,0.4); }

/* ============================ HERO (SCENE 0) ============================ */
.hero {
  min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 80px 20px 120px; overflow: hidden;
}
.hero-field { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; display: block; }
.hero-mesh {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(1200px 700px at 70% -8%, rgba(255,107,53,0.10), transparent 60%),
    radial-gradient(900px 600px at 12% 8%, rgba(255,107,53,0.05), transparent 55%),
    radial-gradient(700px 700px at 50% 120%, rgba(255,107,53,0.06), transparent 60%);
}

/* CRT scan-line overlay — faint moving horizontal lines, ~2% opacity */
.hero-scan {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background-image: repeating-linear-gradient(0deg,
    rgba(255,255,255,0.025) 0px, rgba(255,255,255,0.025) 1px,
    transparent 2px, transparent 4px);
  mix-blend-mode: overlay; opacity: 0.6;
  animation: scandrift 9s linear infinite;
}
@keyframes scandrift { from { background-position: 0 0; } to { background-position: 0 80px; } }
/* ambient ember “data flowing” hint at the screen edges */
.hero-edge {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255,107,53,0.06), transparent 9%),
    linear-gradient(270deg, rgba(255,107,53,0.06), transparent 9%),
    linear-gradient(180deg, rgba(255,107,53,0.05), transparent 7%),
    linear-gradient(0deg, rgba(255,107,53,0.05), transparent 7%);
  opacity: 0.8;
}

.hero-inner {
  position: relative; z-index: 2; text-align: center; max-width: 880px;
  display: flex; flex-direction: column; align-items: center;
}
@keyframes heroIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

/* top status line — “dashboard of an autonomous intelligence” */
.hero-statusline {
  font-family: var(--mono); font-size: 10px; font-weight: 500;
  letter-spacing: 0.26em; text-transform: uppercase; color: rgba(107,107,120,0.7);
  margin: 0 0 18px; white-space: nowrap; overflow: hidden; max-width: 92vw; text-overflow: ellipsis;
  animation: heroIn 700ms var(--ease) both;
}
.hero-statusline b { color: var(--ember); font-weight: 600; }

.hero-headline {
  margin: 0; font-weight: 700; letter-spacing: -0.035em; line-height: 0.98;
  font-size: clamp(44px, 12vw, 108px); color: var(--bone);
}
.hero-headline .hw {
  display: inline-block; opacity: 0; transform: translateY(14px);
  animation: hwIn 620ms var(--ease) forwards;
}
.hero-headline .hw:nth-child(1) { animation-delay: 360ms; }
.hero-headline .hw:nth-child(2) { animation-delay: 560ms; }
.hero-headline .hw-engine { animation-delay: 760ms; }
@keyframes hwIn { to { opacity: 1; transform: none; } }
/* “engine” breathes — subliminal 1.0 -> 1.005 -> 1.0 over 6s */
.hero-headline .hw-engine { transform-origin: 50% 60%; }
.hero-loaded .hero-headline .hw-engine { animation: hwIn 620ms var(--ease) 760ms both, engineBreathe 6s ease-in-out 1600ms infinite; }
@keyframes engineBreathe { 0%,100% { transform: scale(1); } 50% { transform: scale(1.005); } }

.hero-sub {
  margin: 26px auto 0; max-width: 640px;
  font-family: var(--mono); font-size: 15px; line-height: 1.7; color: var(--ash);
  opacity: 0; animation: heroIn 700ms var(--ease) 980ms forwards;
}
@media (min-width: 768px) { .hero-sub { font-size: 17px; } }

/* telemetry strip */
.telemetry {
  margin: 30px auto 0; display: flex; flex-wrap: wrap;
  align-items: center; justify-content: center; gap: 10px;
  font-family: var(--mono); font-size: 12.5px; color: var(--ash);
}
.tel-chip { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.tel-sep { color: var(--ink-3); }
@media (max-width: 600px) { .tel-sep { display: none; } .telemetry { gap: 6px 14px; } }
.tel-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ash); flex-shrink: 0; }
.tel-dot.live { background: var(--ember); box-shadow: 0 0 0 0 var(--ember-glow); animation: telpulse 2.4s var(--ease) infinite; }
@keyframes telpulse { 0% { box-shadow: 0 0 0 0 var(--ember-glow); } 70% { box-shadow: 0 0 0 9px rgba(255,107,53,0); } 100% { box-shadow: 0 0 0 0 rgba(255,107,53,0); } }

/* CTA (shared) */
.cta {
  position: relative; margin-top: 42px;
  display: inline-flex; align-items: center; gap: 12px;
  min-height: 56px; padding: 0 30px;
  font-family: var(--mono); font-size: 16px; font-weight: 500; letter-spacing: 0.01em;
  color: var(--bone); background: rgba(255,107,53,0.06);
  border: 1.5px solid var(--ember); border-radius: 4px; cursor: pointer;
  overflow: hidden;
  transition: background 200ms var(--ease), box-shadow 200ms var(--ease), transform 120ms var(--ease);
}
.cta > * { position: relative; z-index: 1; }
.cta:hover { background: rgba(255,107,53,0.16); box-shadow: 0 0 32px var(--ember-glow); }
.cta:active { transform: translateY(1px); }
.cta-arrow { transition: transform 200ms var(--ease); }
.cta:hover .cta-arrow { transform: translateX(4px); }
#enterDash { margin-top: 38px; will-change: transform; transition: background 200ms var(--ease), box-shadow 200ms var(--ease), transform 160ms var(--ease); }
.cta.lock-click { animation: lockClick 320ms var(--ease); }
@keyframes lockClick { 0% { transform: scale(1); } 30% { transform: scale(0.96); } 65% { transform: scale(1.04); } 100% { transform: scale(1); } }

/* CTA border “cycling” like a vault lock — a bright ember segment travels the
   perimeter once on hover (conic-gradient masked to the border ring). */
.cta-cycle { position: absolute; inset: 0; z-index: 0; border-radius: 4px; pointer-events: none; opacity: 0; }
.cta-cycle::before {
  content: ""; position: absolute; inset: -1.5px; border-radius: 5px; padding: 1.5px;
  background: conic-gradient(from var(--cyc, 0deg),
    rgba(255,138,92,0) 0deg, rgba(255,138,92,0) 300deg,
    rgba(255,138,92,0.95) 345deg, #ffd9c4 360deg);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
}
@property --cyc { syntax: "<angle>"; inherits: false; initial-value: 0deg; }
#enterDash:hover .cta-cycle { opacity: 1; animation: ctaCycle 1s var(--ease-cubic) 1; }
@keyframes ctaCycle { from { --cyc: 0deg; } to { --cyc: 360deg; } }
/* hover hint reveal */
.cta-hint {
  position: absolute; left: 0; right: 0; bottom: -22px;
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ash); opacity: 0; transform: translateY(-4px);
  transition: opacity 220ms var(--ease), transform 220ms var(--ease); pointer-events: none;
}
.cta:hover .cta-hint { opacity: 1; transform: none; }

/* scroll cue */
.scroll-cue {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); z-index: 2;
  background: none; border: none; color: var(--ember); cursor: pointer; padding: 8px;
  filter: drop-shadow(0 0 8px var(--ember-glow));
  animation: bob 2.2s var(--ease) infinite;
}
.scroll-cue:hover { color: var(--ember-2); }
@keyframes bob { 0%,100% { transform: translate(-50%,0); opacity: 0.6; } 50% { transform: translate(-50%,8px); opacity: 1; } }

/* ===================== ENGINE PULSE (heart monitor) ===================== */
.engine-pulse {
  margin: 0 auto 30px; width: min(360px, 90vw);
  opacity: 0; animation: heroIn 700ms var(--ease) 140ms forwards;
}
.ep-row {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px;
  padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px;
  background: rgba(10,10,13,0.55); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  position: relative;
}
.ep-row.is-running { border-color: rgba(255,107,53,0.32); }
.ep-status { display: inline-flex; align-items: center; gap: 7px; }
.ep-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--ash); flex-shrink: 0;
}
.ep-dot.run { background: var(--ember); box-shadow: 0 0 8px var(--ember-glow); animation: epBeat 1.05s ease-out infinite; }
/* mechanical heartbeat — a sharp double-tap, not a gentle breath */
@keyframes epBeat {
  0% { transform: scale(1); box-shadow: 0 0 6px rgba(255,107,53,0.5); }
  8% { transform: scale(1.7); box-shadow: 0 0 14px rgba(255,107,53,0.9); }
  16% { transform: scale(1); }
  24% { transform: scale(1.4); box-shadow: 0 0 11px rgba(255,107,53,0.7); }
  34% { transform: scale(1); box-shadow: 0 0 6px rgba(255,107,53,0.5); }
  100% { transform: scale(1); box-shadow: 0 0 6px rgba(255,107,53,0.4); }
}
.ep-stext { font-family: var(--mono); font-size: 10.5px; font-weight: 600; letter-spacing: 0.14em; color: var(--bone); white-space: nowrap; }
.is-running .ep-stext { color: var(--ember); }
.ep-wave { display: block; height: 22px; min-width: 0; }
.ep-wave canvas { width: 100%; height: 22px; display: block; }
.ep-row.is-running .ep-wave canvas { filter: drop-shadow(0 0 2px var(--ember-glow)); }
.ep-tick { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; color: var(--ash); white-space: nowrap; }
.ep-diag {
  display: flex; justify-content: center; gap: 16px; margin-top: 9px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; color: rgba(107,107,120,0.85);
}
.ep-d { white-space: nowrap; }
.ep-tip {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.06em; color: var(--ash);
  background: rgba(8,8,11,0.94); border: 1px solid var(--line); border-radius: 6px;
  padding: 7px 11px; white-space: nowrap; z-index: 20; pointer-events: none;
  box-shadow: 0 10px 28px rgba(0,0,0,0.6);
}
@media (max-width: 460px) { .ep-tick { display: none; } .ep-row { grid-template-columns: auto 1fr; } }

/* ===================== LAST INVENTION TICKER ===================== */
.hero-last {
  margin-top: 30px; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.08em; color: var(--ash);
  opacity: 0; animation: heroIn 700ms var(--ease) 1200ms forwards;
}
.hero-last .hl-score { color: var(--ember); font-weight: 600; }
.hero-last .hl-sep { color: var(--ink-3); margin: 0 7px; }

/* ===================== CURSOR SCANNER PROBE ===================== */
.hero-scanner {
  position: fixed; top: 0; left: 0; z-index: 1; pointer-events: none;
  width: 560px; height: 560px; margin: -280px 0 0 -280px;
  border-radius: 50%; opacity: 0;
  background: radial-gradient(circle, rgba(255,107,53,0.15), rgba(255,107,53,0.05) 38%, transparent 70%);
  mix-blend-mode: screen; transition: opacity 220ms var(--ease);
  will-change: transform;
}
.hero-probe {
  position: fixed; top: 0; left: 0; z-index: 2; pointer-events: none;
  margin: -20px 0 0 -20px; color: var(--ember); opacity: 0;
  transition: opacity 160ms var(--ease); will-change: transform;
}
.hero-probe.on { opacity: 1; }
.hero-probe svg { display: block; filter: drop-shadow(0 0 4px var(--ember-glow)); }
.hero-probe-label {
  position: absolute; top: 42px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: 8.5px; font-weight: 600; letter-spacing: 0.22em;
  color: var(--ember); white-space: nowrap; text-shadow: 0 0 8px var(--ember-glow);
}

/* ===================== REVEALS ===================== */
/* Reveal: default VISIBLE — if JS observer adds .reveal-armed, then .in upgrades to animated reveal.
   This guarantees content is always shown even if the IntersectionObserver fails for any reason. */
.reveal { opacity: 1; transform: none; }
.reveal.reveal-armed:not(.in) { opacity: 0; transform: translateY(28px); }
.reveal.reveal-armed.in { opacity: 1; transform: none; transition: opacity 700ms var(--ease), transform 700ms var(--ease); }

/* ============================ SCENE 1 — ENGINE STATE ============================ */
.engine-state {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, #08080b, var(--ink));
  padding: clamp(80px, 14vh, 150px) 20px; overflow: hidden;
}
.engine-state::before {
  content: ""; position: absolute; top: -1px; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--ember), transparent);
}
.flow-field { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: 0.6; }
.es-inner { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; text-align: center; }
.es-title {
  margin: 14px 0 0; font-size: clamp(28px, 5vw, 48px); font-weight: 700;
  letter-spacing: -0.03em; color: var(--bone);
}
.es-cols {
  margin: 56px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  max-width: 820px;
}
@media (max-width: 600px) { .es-cols { gap: 8px; } }
.es-col { padding: 12px; }
.es-num {
  font-family: var(--mono); font-weight: 600;
  font-size: clamp(40px, 9vw, 84px); line-height: 1; letter-spacing: -0.03em;
  color: var(--ember); text-shadow: 0 0 36px var(--ember-glow);
}
.es-lbl {
  margin-top: 12px; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--ash);
}
.es-ticker {
  margin: 64px auto 0; max-width: 980px;
  display: flex; align-items: center; gap: 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 16px 0; overflow: hidden;
  position: relative;
  /* Fade-mask both edges so marquee items appear/disappear gracefully. */
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 11%, #000 95%, transparent 100%);
          mask-image: linear-gradient(90deg, transparent 0, #000 11%, #000 95%, transparent 100%);
}
.es-ticker-label {
  flex-shrink: 0; font-family: var(--mono); font-size: 10.5px; font-weight: 600;
  letter-spacing: 0.22em; color: var(--ember);
  /* Sit OUTSIDE the masked marquee area: absolute-positioned with its own background
     so the marquee text scrolls behind it without overlap. */
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  padding: 6px 14px 6px 4px;
  background: var(--ink);
  z-index: 2;
  box-shadow: 12px 0 18px -6px var(--ink);
}
.es-ticker-track {
  display: inline-flex; gap: 40px; white-space: nowrap;
  animation: marquee 38s linear infinite;
  padding-left: 120px; /* clear room for the absolute-positioned NOW MINING label */
}
.es-ticker:hover .es-ticker-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.mine-item { display: inline-flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 13px; color: var(--ash); }
.mine-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ember); box-shadow: 0 0 8px var(--ember-glow); }

/* ============================ SCENE 3 — JUDGES ============================ */
.judges { max-width: var(--maxw); margin: 0 auto; padding: clamp(90px,15vh,160px) 20px; }
.judges-title { margin: 16px 0 14px; font-size: clamp(26px,4.4vw,40px); font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; color: var(--bone); }
.judges-sub { margin: 0 auto; max-width: 580px; color: var(--ash); font-size: 15px; line-height: 1.65; }
.judge-grid {
  margin-top: 48px;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px;
}
.judge-card {
  background: var(--ink-2); border: 1px solid rgba(255,107,53,0.16); border-radius: 12px;
  padding: 22px 20px;
  transition: transform 200ms var(--ease), border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}
.judge-card:hover { transform: translateY(-4px); border-color: var(--ember); box-shadow: 0 12px 36px rgba(0,0,0,0.5), 0 0 26px rgba(255,107,53,0.12); }
.judge-name { margin: 0 0 6px; font-size: 17px; font-weight: 600; letter-spacing: -0.01em; color: var(--bone); }
.judge-why { margin: 0; font-family: var(--mono); font-size: 12.5px; line-height: 1.55; color: var(--ash); }

/* ============================ SCENE 2 — VAULT ============================ */
.vault-scene {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 80px 20px; overflow: hidden;
  border-top: 1px solid var(--line);
  background: radial-gradient(1200px 800px at 50% 30%, rgba(255,107,53,0.06), transparent 60%), #060608;
}
.vault-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: 0; transition: opacity 800ms var(--ease); }
.vault-canvas.ready { opacity: 1; }

/* ---- High-fidelity 2D fallback vault (SVG brushed-steel door) ---- */
.vault-2d-fallback { position: absolute; inset: 0; z-index: 0; display: grid; place-items: center; }
.v2d-door {
  position: relative; width: min(74vh, 88vw); aspect-ratio: 1;
  filter: drop-shadow(0 40px 90px rgba(0,0,0,0.7));
}
.v2d-svg { display: block; width: 100%; height: 100%; }
.v2d-mark {
  font-family: var(--mono); font-weight: 700; font-size: 34px; letter-spacing: -0.02em;
  fill: rgba(210,210,220,0.30); paint-order: stroke; stroke: rgba(0,0,0,0.5); stroke-width: 1px;
}
/* slow brushed-sheen sweep + idle spoke rotation + bloom breathing */
.v2d-sheen { transform-box: fill-box; transform-origin: center; animation: v2dSheen 14s linear infinite; }
@keyframes v2dSheen { to { transform: rotate(360deg); } }
.v2d-spokes { transform-box: view-box; transform-origin: 300px 300px; animation: v2dSpin 60s linear infinite; }
.v2d-dialgroup { transform-box: view-box; transform-origin: 300px 300px; }
@keyframes v2dSpin { to { transform: rotate(360deg); } }
.v2d-bloom { animation: v2dBloom 5.5s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
@keyframes v2dBloom { 0%,100% { opacity: 0.55; } 50% { opacity: 0.95; } }
.vault-2d-fallback.opening .v2d-door { animation: v2dOpen 1.3s var(--ease) forwards; }
@keyframes v2dOpen { to { transform: scale(1.7) rotate(8deg); opacity: 0; filter: blur(10px) drop-shadow(0 0 120px var(--ember)); } }
.vault-2d-fallback.shake .v2d-door { animation: v2dShake 0.45s var(--ease); }
@keyframes v2dShake { 0%,100% { transform: translateX(0);} 20%,60% { transform: translateX(-12px);} 40%,80% { transform: translateX(12px);} }

.vault-ui {
  position: relative; z-index: 3; text-align: center; max-width: 520px;
  margin-top: auto; margin-bottom: 6vh;
  background: rgba(6,6,8,0.55); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  border-radius: 16px; padding: 28px 26px;
}
.vault-title { margin: 12px 0 8px; font-size: clamp(34px,7vw,60px); font-weight: 700; letter-spacing: -0.035em; color: var(--bone); }
.vault-copy { margin: 0 0 22px; font-family: var(--mono); font-size: 13.5px; color: var(--ash); }
.vault-form { display: flex; flex-direction: column; align-items: center; gap: 18px; }

.code-slots { display: flex; gap: 8px; user-select: none; }
@media (max-width: 480px) { .code-slots { gap: 5px; } }
.code-slots .slot {
  width: 30px; height: 44px; display: grid; place-items: center;
  font-family: var(--mono); font-size: 22px; font-weight: 600; color: var(--bone);
  background: linear-gradient(180deg, #101015, #0a0a0d);
  border: 1px solid var(--line-2); border-radius: 5px;
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.6), inset 0 -1px 0 rgba(255,255,255,0.04);
}
@media (max-width: 480px) { .code-slots .slot { width: 22px; height: 36px; font-size: 16px; } }
.code-slots .slot.filled { color: var(--bone); text-shadow: 0 1px 2px rgba(0,0,0,0.8); border-color: var(--line-2); }
.code-slots .slot.sep { border: none; background: none; box-shadow: none; color: var(--ember); width: 14px; }
.code-slots .slot.cursor { border-color: var(--ember); box-shadow: inset 0 2px 6px rgba(0,0,0,0.6), 0 0 0 2px rgba(255,107,53,0.18); animation: slotpulse 1.1s var(--ease) infinite; }
@keyframes slotpulse { 0%,100% { box-shadow: inset 0 2px 6px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,107,53,0.2);} 50% { box-shadow: inset 0 2px 6px rgba(0,0,0,0.6), 0 0 14px rgba(255,107,53,0.4);} }

.code-input {
  width: min(360px, 88vw); min-height: 46px; padding: 10px 14px;
  font-family: var(--mono); font-size: 16px; letter-spacing: 0.12em; text-align: center; text-transform: lowercase;
  color: var(--bone); background: var(--ink-2); border: 1px solid var(--line-2); border-radius: 4px; outline: none;
  transition: border-color 150ms var(--ease), box-shadow 150ms var(--ease);
}
.code-input:focus { border-color: var(--ember); box-shadow: 0 0 0 3px rgba(255,107,53,0.12); }
.code-input.bad { border-color: var(--blood); box-shadow: 0 0 0 3px rgba(196,24,24,0.18); animation: badshake 0.4s var(--ease); }
@keyframes badshake { 0%,100% { transform: translateX(0);} 25% { transform: translateX(-6px);} 75% { transform: translateX(6px);} }
.vault-open { margin-top: 0; }
.vault-error { margin: 0; font-family: var(--mono); font-size: 12px; color: var(--blood); min-height: 1em; }

.vault-white { position: fixed; inset: 0; z-index: 250; background: #fff; opacity: 0; pointer-events: none; }
.vault-white.fire { animation: vwhite 700ms var(--ease) forwards; }
@keyframes vwhite { 0% { opacity: 0; } 60% { opacity: 0; } 80% { opacity: 1; } 100% { opacity: 1; } }

/* ============================ FOOTER (SCENE 4) ============================ */
.footer {
  border-top: 1px solid var(--line); padding: 56px 24px 64px;
}
.footer-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center;
}
@media (min-width: 768px) { .footer-inner { flex-direction: row; justify-content: space-between; } }
.footer-mark { font-weight: 700; font-size: 22px; letter-spacing: -0.03em; }
.footer-dash { color: var(--ember); }
.footer-tagline { font-family: var(--mono); font-size: 12px; color: var(--ash); }
.footer-links { display: flex; gap: 22px; font-family: var(--mono); font-size: 13px; }
.footer-links a { color: var(--ash); }
.footer-links a:hover { color: var(--ember); }

/* ========================= PREVIEW PAGE ====================== */
.pv-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; border-bottom: 1px solid var(--line);
  background: rgba(10,10,13,0.78); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.pv-brand { display: flex; align-items: center; gap: 12px; }
.pv-wordmark { font-weight: 700; font-size: 17px; letter-spacing: -0.02em; color: var(--bone); }
.pv-wordmark .dot { color: var(--ember); }
.pv-pill {
  font-family: var(--mono); font-size: 10px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ember); border: 1px solid rgba(255,107,53,0.4); border-radius: 999px; padding: 4px 10px;
}
.pv-enter { font-family: var(--mono); font-size: 13px; display: inline-flex; align-items: center; gap: 6px; }

.pv-hero { text-align: center; padding: clamp(64px,12vh,120px) 20px 36px; max-width: 880px; margin: 0 auto; }
.pv-hero .eyebrow { display: block; margin-bottom: 16px; }
.pv-title { margin: 0; font-size: clamp(38px,8vw,76px); font-weight: 700; letter-spacing: -0.035em; line-height: 1; color: var(--bone); transition: opacity 400ms var(--ease); }
.pv-sub { margin: 22px auto 0; max-width: 560px; font-family: var(--mono); font-size: 14.5px; line-height: 1.6; color: var(--ash); }

.pv-stats {
  max-width: var(--maxw); margin: 0 auto; padding: 0 20px 16px;
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px;
}
@media (max-width: 820px) { .pv-stats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 420px) { .pv-stats { grid-template-columns: 1fr; } }
.pv-stat { background: var(--ink-2); border: 1px solid var(--line); border-radius: 12px; padding: 20px 16px; text-align: center; }
.pv-stat .val { font-family: var(--mono); font-size: clamp(24px,4vw,34px); font-weight: 600; color: var(--bone); letter-spacing: -0.02em; }
.pv-stat .val.ember { color: var(--ember); text-shadow: 0 0 24px var(--ember-glow); }
.pv-stat .lbl { margin-top: 8px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ash); }

/* the cycler */
.pv-cycler-wrap { max-width: var(--maxw); margin: 48px auto 0; padding: 0 20px; }
.pv-cycler {
  position: relative; min-height: 420px;
  background: linear-gradient(180deg, var(--ink-2), #0d0d11);
  border: 1px solid var(--line); border-radius: 20px; overflow: hidden;
}
.pv-slide {
  position: absolute; inset: 0; display: grid; grid-template-columns: 1fr 1fr;
  opacity: 0; transition: opacity 700ms var(--ease); pointer-events: none;
}
.pv-slide.active { opacity: 1; pointer-events: auto; }
@media (max-width: 760px) { .pv-slide { grid-template-columns: 1fr; } .pv-cycler { min-height: 600px; } }
.pv-slide-body { padding: clamp(28px,4vw,52px); display: flex; flex-direction: column; justify-content: center; min-width: 0; }
.pv-slide-tier {
  display: inline-flex; align-items: center; gap: 12px; margin-bottom: 18px;
}
.pv-tier-badge {
  width: 52px; height: 52px; display: grid; place-items: center; border-radius: 12px;
  font-family: var(--mono); font-weight: 600; font-size: 26px; color: #fff;
  background: var(--ember); box-shadow: 0 0 28px var(--ember-glow);
}
.pv-tier-badge.A { background: #c9852f; box-shadow: 0 0 24px rgba(201,133,47,0.4); }
.pv-tier-badge.B { background: #5a5d63; box-shadow: none; }
.pv-score { font-family: var(--mono); font-size: 13px; color: var(--ash); }
.pv-score b { color: var(--bone); font-size: 22px; }
.pv-slide-name { margin: 0 0 14px; font-size: clamp(28px,4.4vw,46px); font-weight: 700; letter-spacing: -0.03em; line-height: 1.04; color: var(--bone); }
.pv-slide-problem { margin: 0 0 18px; color: var(--ash); font-size: 15px; line-height: 1.6; }
.pv-slide-quote { margin: 0; font-family: var(--serif); font-style: italic; font-size: 19px; line-height: 1.45; color: var(--bone); border-left: 2px solid var(--ember); padding-left: 16px; }
.pv-slide-media { position: relative; background: radial-gradient(circle at 50% 42%, rgba(255,107,53,0.10), transparent 65%), var(--ink-3); display: grid; place-items: center; overflow: hidden; }
.pv-slide-media img { width: 82%; height: 82%; object-fit: contain; filter: drop-shadow(0 24px 50px rgba(0,0,0,0.6)); }
.pv-slide-media svg { width: 70%; height: 70%; }

.pv-dots { display: flex; gap: 10px; justify-content: center; margin-top: 24px; }
.pv-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-3); border: none; cursor: pointer; padding: 0; transition: background 200ms var(--ease), width 200ms var(--ease); }
.pv-dot.active { background: var(--ember); width: 24px; border-radius: 999px; box-shadow: 0 0 12px var(--ember-glow); }

/* single building card (0 products) */
.pv-building { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 60px 30px; min-height: 420px; }
.pv-building h3 { margin: 0 0 10px; font-size: clamp(26px,4vw,40px); font-weight: 700; letter-spacing: -0.03em; }
.pv-building p { margin: 0 0 28px; color: var(--ash); font-family: var(--mono); font-size: 14px; }
.pv-progress { width: min(440px, 80vw); height: 6px; background: var(--ink-3); border-radius: 999px; overflow: hidden; }
.pv-progress span { display: block; height: 100%; background: linear-gradient(90deg, var(--ember), var(--ember-2)); border-radius: 999px; animation: pvfill 2.4s var(--ease) infinite; }
@keyframes pvfill { 0% { width: 10%; } 50% { width: 80%; } 100% { width: 10%; } }

/* preview judges reuse + feed */
.pv-section { max-width: var(--maxw); margin: 0 auto; padding: clamp(72px,12vh,120px) 20px 0; }
.pv-feed { max-width: 760px; margin: 0 auto; border: 1px solid var(--line); border-radius: 14px; background: var(--ink-2); overflow: hidden; }
.pv-feed-head { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ember); }
.pv-feed-row { display: flex; gap: 14px; padding: 13px 18px; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 13px; color: var(--ash); }
.pv-feed-row:last-child { border-bottom: none; }
.pv-feed-time { color: var(--ember); flex-shrink: 0; }
.pv-footer { text-align: center; padding: clamp(72px,12vh,120px) 20px; }
.pv-footer .footer-mark { display: block; margin-top: 28px; }

/* ====================== PORTAL ELEVATION (added) ======================= */

/* --- schematic-draw reveal: a CAD line draws across the top before content fades in --- */
.reveal.reveal-armed { position: relative; }
.reveal.reveal-armed::after {
  content: ""; position: absolute; top: 0; left: 0; height: 1px; width: 0;
  background: linear-gradient(90deg, transparent, var(--brass), var(--ember), transparent);
  opacity: 0; pointer-events: none; z-index: 6;
}
.reveal.reveal-armed.in::after { animation: schematicDraw 900ms var(--ease) forwards; }
@keyframes schematicDraw {
  0% { width: 0; opacity: 0; }
  12% { opacity: 1; }
  70% { width: 100%; opacity: 1; }
  100% { width: 100%; opacity: 0; }
}

/* --- THE METHOD: the spec line on the side of the machine --- */
.method-strip { border-top: 1px solid var(--line); background: #070709; padding: clamp(30px,6vh,52px) 20px; }
.ms-inner { max-width: var(--maxw); margin: 0 auto; display: flex; flex-direction: column; gap: 14px; align-items: center; text-align: center; }
.ms-eyebrow {
  font-family: var(--mono); font-size: 10px; font-weight: 600; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--brass);
}
.ms-line { margin: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 26px; }
.ms-seg {
  font-family: var(--mono); font-size: clamp(15px,2.4vw,21px); font-weight: 500; letter-spacing: -0.01em;
  color: var(--bone); position: relative; padding-bottom: 8px;
}
.ms-seg::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: linear-gradient(90deg, var(--brass), transparent);
  transform: scaleX(0); transform-origin: left; transition: transform 700ms var(--ease);
}
.method-strip.in .ms-seg::after { transform: scaleX(1); }
.method-strip.in .ms-seg:nth-child(2)::after { transition-delay: 160ms; }
.method-strip.in .ms-seg:nth-child(3)::after { transition-delay: 320ms; }

/* --- RESEARCH / DESIGN / SHIP : the assembly line --- */
.rds-scene { border-top: 1px solid var(--line); background: linear-gradient(180deg, var(--ink), #08080b); padding: clamp(72px,12vh,130px) 20px; }
.rds-inner { max-width: var(--maxw); margin: 0 auto; text-align: center; }
.rds-title { margin: 14px 0 0; font-size: clamp(24px,4vw,40px); font-weight: 700; letter-spacing: -0.03em; color: var(--bone); }
.rds-grid { margin-top: 52px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; position: relative; }
.rds-grid::before {
  /* the conveyor: a hairline brass rail connecting all three stages */
  content: ""; position: absolute; top: 42px; left: 12%; right: 12%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--brass) 20%, var(--brass) 80%, transparent);
  opacity: 0.4;
}
.rds-stage {
  position: relative; padding: 0 22px; text-align: center;
  opacity: 1; /* defensive: visible by default */
}
.rds-stage + .rds-stage { border-left: 1px solid var(--line); }
.rds-head { display: flex; align-items: baseline; justify-content: center; gap: 10px; }
.rds-label { font-family: var(--mono); font-size: 12px; font-weight: 600; letter-spacing: 0.22em; color: var(--ember); }
.rds-no { font-family: var(--mono); font-size: 12px; font-weight: 600; color: var(--brass); }
.rds-glyph { margin: 22px auto 14px; color: var(--bone); width: 56px; height: 56px; }
.rds-tag { margin: 0; font-family: var(--mono); font-size: 12.5px; color: var(--ash); letter-spacing: 0.02em; }
.rds-stat { margin: 16px 0 2px; font-family: var(--mono); font-weight: 600; font-size: clamp(30px,5vw,48px); line-height: 1; color: var(--bone); letter-spacing: -0.02em; }
.rds-statlbl { margin: 0; font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ash); }
.rds-bar { margin: 18px auto 0; width: 78%; height: 2px; background: var(--ink-3); border-radius: 2px; overflow: hidden; }
.rds-bar span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--brass), var(--ember)); box-shadow: 0 0 10px var(--ember-glow); }

/* CAD-draw the glyph wires when armed */
.rds-draw { stroke-dasharray: 240; stroke-dashoffset: 240; }
.rds-stage.rds-in .rds-draw { animation: rdsDraw 900ms var(--ease) forwards; }
@keyframes rdsDraw { to { stroke-dashoffset: 0; } }
/* ember bar fills L->R over 2s on scroll-in, then loops */
.rds-stage.rds-in .rds-bar span { animation: rdsFill 2200ms var(--ease) 400ms infinite; }
@keyframes rdsFill { 0% { width: 0; opacity: 0.5; } 60% { width: 100%; opacity: 1; } 100% { width: 100%; opacity: 0.5; } }
.rds-stage.rds-in .rds-glyph { animation: rdsGlyphPulse 3.4s ease-in-out 900ms infinite; }
@keyframes rdsGlyphPulse { 0%,100% { color: var(--bone); } 50% { color: var(--ember); } }

@media (max-width: 720px) {
  .rds-grid { grid-template-columns: 1fr; gap: 0; }
  .rds-grid::before { display: none; }
  .rds-stage { padding: 30px 16px; }
  .rds-stage + .rds-stage { border-left: none; border-top: 1px solid var(--line); }
  .rds-glyph { margin-top: 16px; }
}

/* --- PORTAL THRESHOLD band: the page slows for a beat --- */
.portal-band {
  background: #000; padding: clamp(34px,7vh,64px) 20px;
  display: flex; align-items: center; justify-content: center; gap: 18px;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.pb-rule { flex: 1; max-width: 160px; height: 1px; background: linear-gradient(90deg, transparent, var(--brass)); }
.pb-rule:last-child { background: linear-gradient(90deg, var(--brass), transparent); }
.pb-text { font-family: var(--mono); font-size: clamp(10px,2vw,12.5px); font-weight: 600; letter-spacing: 0.28em; color: var(--brass); white-space: nowrap; }
.portal-band.reveal-armed.in .pb-text { animation: pbGlow 2.4s ease-in-out infinite; }
@keyframes pbGlow { 0%,100% { text-shadow: none; } 50% { text-shadow: 0 0 18px var(--brass-glow); } }

/* --- hero marginalia: the reason for the hyphen --- */
.hero-margin {
  position: absolute; right: clamp(16px,4vw,54px); bottom: clamp(70px,14vh,130px);
  display: flex; align-items: flex-start; gap: 10px; text-align: right;
  opacity: 0; animation: hmFade 1200ms var(--ease) 1800ms forwards; z-index: 4;
}
.hm-no { font-family: var(--mono); color: var(--ember); font-size: 15px; line-height: 1.1; }
.hm-text { font-family: var(--mono); font-size: 10.5px; line-height: 1.5; letter-spacing: 0.06em; color: var(--ash); }
@keyframes hmFade { to { opacity: 0.62; } }
@media (max-width: 760px) { .hero-margin { position: static; margin: 26px auto 0; justify-content: center; text-align: center; } }

/* footer hyphen marginalia */
.footer-hyphen { display: block; margin-top: 6px; color: #4d4d57; font-size: 11px; letter-spacing: 0.04em; }
.footer-hyphen .fh-dash { color: var(--brass); }

/* --- judges: brass frame accent + typed-then-stamped --- */
.judge-card { position: relative; overflow: hidden; }
.judge-card::before {
  content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 1px;
  background: linear-gradient(90deg, var(--brass), transparent); opacity: 0.5;
}
.judge-name { position: relative; display: inline-block; min-height: 1.2em; }
.jn-text { border-right: 2px solid transparent; }
.judge-card.j-typing .jn-text { border-right-color: var(--ember); }
.judge-card.j-done .jn-text { border-right-color: transparent; }
.jn-rule {
  position: absolute; left: 0; bottom: -4px; height: 1.5px; width: 100%;
  background: linear-gradient(90deg, var(--brass), transparent);
  transform: scaleX(0); transform-origin: left; transition: transform 360ms var(--ease);
}
.judge-card.j-ruled .jn-rule { transform: scaleX(1); }
.judge-stamp {
  position: absolute; top: 14px; right: 14px;
  font-family: var(--mono); font-size: 8.5px; font-weight: 600; letter-spacing: 0.16em;
  color: var(--brass); border: 1px solid var(--brass); border-radius: 3px; padding: 2px 6px;
  opacity: 0; transform: scale(1.4) rotate(-6deg); transform-origin: top right;
}
.judge-card.j-done .judge-stamp { animation: stampIn 360ms var(--ease) forwards; }
@keyframes stampIn { 0% { opacity: 0; transform: scale(1.4) rotate(-6deg); } 60% { opacity: 0.9; } 100% { opacity: 0.55; transform: scale(1) rotate(-6deg); } }

/* --- vault descent veil --- */
.descent-veil { position: fixed; inset: 0; background: #000; opacity: 0; pointer-events: none; z-index: 5; will-change: opacity; }
.vault-scene { position: relative; z-index: 10; }
/* brass hairline frame on the vault UI card */
.vault-ui { border: 1px solid rgba(201,165,90,0.22); }

/* ====================== REDUCED MOTION ======================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal:not(.in) { opacity: 1; transform: none; }
  .flow-field { display: none !important; }
  /* keep static sketches visible but kill motion overlays */
  .hero-scan { animation: none !important; opacity: 0.3; }
  .hero-scanner, .hero-probe { display: none !important; }
  /* force all staggered hero elements to their final visible state */
  .hero-statusline, .engine-pulse, .hero-sub, .hero-last,
  .hero-headline .hw, .hero-headline .dot { opacity: 1 !important; transform: none !important; }
  .ep-dot.run { animation: none !important; }
}