/* ============================================================
   aaronrau.com — v3
   Black, minimal-premium. One accent. Mono micro-labels.
   ============================================================ */

:root {
  --bg: #050505;
  --bg-raise: #0c0c0c;
  --bg-card: #0e0e0e;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.18);
  --text: #f4f4f2;
  --muted: #93938c;
  --faint: #5c5c56;
  --accent: #d6d6cf;
  --teal: #007170;
  --light-card: #edece6;
  --light-text: #111110;
  --radius: 22px;
  --pad: clamp(20px, 4vw, 48px);
  --w: 1140px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Helvetica Neue", "Inter", "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", "SFMono-Regular", Menlo, Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: #2e2e2c; color: #fff; }

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

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

.wrap { max-width: var(--w); margin: 0 auto; padding: 0 var(--pad); }

/* ---------- type ---------- */

h1, h2, h3 { font-weight: 650; letter-spacing: -0.03em; line-height: 1.04; }

.display {
  font-size: clamp(42px, 7.4vw, 92px);
  letter-spacing: -0.045em;
}

h2.section-title {
  font-size: clamp(30px, 4.6vw, 54px);
  margin: 14px 0 18px;
}

.lede {
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.55;
  max-width: 640px;
}

.lede strong, .body-copy strong { color: var(--text); font-weight: 600; }

.body-copy { color: var(--muted); max-width: 620px; }
.body-copy + .body-copy { margin-top: 14px; }

.micro {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

.micro .idx { color: var(--accent); }

.accent { color: var(--accent); }

/* ---------- nav ---------- */

.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  transition: background 0.35s, border-color 0.35s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(6, 6, 6, 0.92);
  border-bottom-color: var(--line);
}
.nav-inner {
  max-width: var(--w); margin: 0 auto; padding: 18px var(--pad);
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.18em;
  text-transform: uppercase; font-weight: 600;
}
.nav-logo .dot { color: var(--faint); }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.cta {
  color: var(--text); border: 1px solid var(--line-strong);
  padding: 8px 14px; border-radius: 100px; transition: border-color 0.2s, background 0.2s;
}
.nav-links a.cta:hover { border-color: rgba(255, 255, 255, 0.55); background: rgba(255, 255, 255, 0.05); }

/* ---------- hero (index) ---------- */

.hero {
  position: relative;
  padding: clamp(130px, 18vh, 180px) 0 30px;
}
.hero-grid {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 40px;
  align-items: center; width: 100%;
}
.hero-copy .micro { margin-bottom: 22px; }
.hero-copy .lede { margin-top: 26px; }
.hero-actions { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.1em;
  text-transform: uppercase; padding: 13px 22px; border-radius: 100px;
  border: 1px solid var(--line-strong); color: var(--text);
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.btn:hover { border-color: rgba(255, 255, 255, 0.55); background: rgba(255, 255, 255, 0.05); transform: translateY(-1px); }
.btn.solid { background: var(--text); color: #050505; border-color: var(--text); }
.btn.solid:hover { background: #fff; }

.hero-portrait { position: relative; }
.hero-portrait img {
  width: 100%; max-width: 380px; margin-left: auto;
  border-radius: var(--radius);
  -webkit-mask-image: radial-gradient(130% 130% at 50% 35%, #000 55%, transparent 98%);
  mask-image: radial-gradient(130% 130% at 50% 35%, #000 55%, transparent 98%);
  filter: contrast(1.02) saturate(0.92);
}

/* ---------- sections ---------- */

section.block { padding: clamp(70px, 11vh, 130px) 0; position: relative; }
section.block + section.block { border-top: 1px solid var(--line); }

/* ---------- NOW / operator ---------- */

.now-card {
  margin-top: 40px;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 0;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, #0d0d0d, #090909);
  overflow: hidden;
}
.now-copy { padding: clamp(26px, 4vw, 52px); display: flex; flex-direction: column; justify-content: center; }
.now-copy h3 { font-size: clamp(24px, 3vw, 34px); margin: 14px 0 12px; }
.now-img { position: relative; min-height: 320px; }
.now-img img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  filter: saturate(0.85) contrast(1.02) brightness(0.92);
}
.now-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, #0b0b0b 0%, transparent 32%),
              linear-gradient(0deg, rgba(5,5,5,0.35), transparent 40%);
}
.status {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); margin-top: 26px;
}
.status .pulse {
  width: 8px; height: 8px; border-radius: 50%; background: #2ee06a;
  box-shadow: 0 0 0 0 rgba(46, 224, 106, 0.5); animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(46, 224, 106, 0.45); }
  70% { box-shadow: 0 0 0 10px rgba(46, 224, 106, 0); }
  100% { box-shadow: 0 0 0 0 rgba(46, 224, 106, 0); }
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.chip {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted);
  border: 1px solid var(--line); border-radius: 100px; padding: 6px 12px;
  white-space: nowrap;
}

/* ---------- work tiles ---------- */

.tiles { display: grid; grid-template-columns: 1fr; gap: 26px; margin-top: 44px; }

.tile {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0; align-items: center;
  border-radius: var(--radius); border: 1px solid var(--line);
  overflow: hidden; position: relative;
  transition: transform 0.35s cubic-bezier(0.2, 0.6, 0.2, 1), border-color 0.3s;
  min-height: 420px;
}
.tile:hover { transform: translateY(-4px); border-color: var(--line-strong); }

.tile-copy { padding: clamp(28px, 4.5vw, 60px); position: relative; z-index: 2; }
.tile-copy .num {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; color: var(--faint);
}
.tile-copy h3 { font-size: clamp(30px, 4vw, 46px); margin: 14px 0 12px; }
.tile-copy p { color: var(--muted); max-width: 420px; }
.tile-go {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 26px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text);
}
.tile-go .arr { transition: transform 0.25s; color: var(--accent); }
.tile:hover .tile-go .arr { transform: translateX(5px); }

.tile-visual {
  position: relative; height: 100%; min-height: 340px;
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.tile-visual img {
  max-width: 82%; max-height: 82%; object-fit: contain;
  transition: transform 0.5s cubic-bezier(0.2, 0.6, 0.2, 1);
}
.tile:hover .tile-visual img { transform: scale(1.045) rotate(-0.5deg); }

.tile.light { background: var(--light-card); border-color: transparent; }
.tile.light .tile-copy h3, .tile.light .tile-go { color: var(--light-text); }
.tile.light .tile-copy p { color: #55554e; }
.tile.light .tile-copy .num { color: #8a8a80; }
.tile.light .chip { border-color: rgba(0, 0, 0, 0.14); color: #55554e; }

.tile.dark .tile-visual::before {
  content: ""; position: absolute; width: 80%; aspect-ratio: 1;
  border-radius: 50%; background: radial-gradient(circle, rgba(255, 255, 255, 0.05), transparent 70%);
}
.tile.dark .tile-visual img { position: relative; }

.tile.photo .tile-visual { padding: 0; }
.tile.photo .tile-visual img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  max-width: none; max-height: none; object-fit: cover;
  filter: saturate(0.9);
}

/* ---------- stats strip ---------- */

.stats {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; margin-top: 44px;
}
.stat { border-top: 1px solid var(--line-strong); padding-top: 16px; }
.stat b {
  display: block; font-size: clamp(26px, 3vw, 38px); font-weight: 650;
  letter-spacing: -0.03em; line-height: 1; font-variant-numeric: tabular-nums;
}
.stat span { display: block; margin-top: 8px; font-size: 13px; color: var(--muted); line-height: 1.4; }

/* ---------- patents ---------- */

.patent-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 40px; }
.patent {
  border: 1px solid var(--line); border-radius: 18px; padding: 26px 28px;
  background: var(--bg-card); transition: border-color 0.25s, transform 0.25s;
}
.patent:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.patent-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.patent-no { font-family: var(--mono); font-size: 11.5px; color: var(--faint); letter-spacing: 0.06em; }
.badge {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 5px 10px; border-radius: 100px; white-space: nowrap;
}
.badge.granted { background: rgba(46, 224, 106, 0.12); color: #6fe89e; }
.badge.pending { background: rgba(255, 200, 60, 0.12); color: #ffd45e; }
.badge.registered { background: rgba(90, 170, 255, 0.14); color: #8ec4ff; }
.patent h4 { font-size: 19px; font-weight: 620; letter-spacing: -0.01em; margin-bottom: 8px; }
.patent p { font-size: 14.5px; color: var(--muted); }
.patents-note { margin-top: 22px; font-size: 13.5px; color: var(--faint); max-width: 560px; }

/* ---------- about / timeline ---------- */

.timeline { margin-top: 44px; display: grid; gap: 0; }
.tl-row {
  display: grid; grid-template-columns: 130px 1fr; gap: 26px;
  padding: 20px 0; border-top: 1px solid var(--line); align-items: baseline;
}
.tl-row:last-child { border-bottom: 1px solid var(--line); }
.tl-year { font-family: var(--mono); font-size: 13px; color: var(--accent); letter-spacing: 0.08em; }
.tl-row p { color: var(--muted); }
.tl-row p strong { color: var(--text); font-weight: 600; }

/* ---------- contact ---------- */

.contact { text-align: left; }
.contact .display { margin: 18px 0 8px; }
.contact-mail {
  display: inline-block; margin-top: 10px;
  font-size: clamp(19px, 2.6vw, 28px); font-weight: 550; letter-spacing: -0.02em;
  border-bottom: 1px solid var(--line-strong); padding-bottom: 4px;
  transition: border-color 0.2s, color 0.2s;
}
.contact-mail:hover { border-color: var(--accent); color: #fff; }
.contact-sub { margin-top: 26px; display: flex; gap: 22px; flex-wrap: wrap; }
.contact-sub a, .contact-sub span {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted);
}
.contact-sub a:hover { color: var(--text); }

footer {
  border-top: 1px solid var(--line); padding: 30px 0 44px;
}
.foot {
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--faint);
}

/* ============================================================
   PROJECT PAGES (shared)
   ============================================================ */

.p-hero { padding: 150px 0 70px; position: relative; }
.p-hero-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 50px; align-items: center;
}
.p-hero .display { font-size: clamp(38px, 5.8vw, 74px); }
.p-hero .lede { margin-top: 24px; }
.p-visual { position: relative; display: flex; justify-content: center; }
.p-visual img { max-height: 560px; object-fit: contain; position: relative; z-index: 1; }
.p-visual.glow-teal::before {
  content: ""; position: absolute; inset: 4%;
  background: radial-gradient(circle, rgba(0, 140, 138, 0.28), transparent 68%);
}
.p-visual.panel-light {
  background: var(--light-card); border-radius: var(--radius); padding: 40px;
}
.p-visual.panel-light img { max-height: 460px; }

.crumbs { margin-bottom: 26px; }
.crumbs a { color: var(--muted); transition: color 0.2s; font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; }
.crumbs a:hover { color: var(--text); }

/* steps switcher (coinbook) */

.steps { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(30px, 5vw, 70px); margin-top: 46px; align-items: start; }
.step-list { display: grid; gap: 6px; }
.step-btn {
  text-align: left; background: none; border: 1px solid transparent; border-radius: 16px;
  padding: 18px 20px; cursor: pointer; color: var(--text); font-family: var(--font);
  transition: background 0.25s, border-color 0.25s;
}
.step-btn .micro { margin-bottom: 6px; transition: color 0.25s; }
.step-btn h4 { font-size: 20px; font-weight: 620; letter-spacing: -0.015em; }
.step-btn p {
  font-size: 14.5px; color: var(--muted); margin-top: 8px; line-height: 1.55;
  display: none;
}
.step-btn.active { background: var(--bg-card); border-color: var(--line); }
.step-btn.active .micro { color: var(--accent); }
.step-btn.active p { display: block; }
.step-stage {
  position: sticky; top: 110px;
  min-height: 480px; border-radius: var(--radius); border: 1px solid var(--line);
  background: radial-gradient(120% 120% at 50% 0%, #101010, #080808);
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.step-stage::before {
  content: ""; position: absolute; width: 75%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 140, 138, 0.20), transparent 70%);
}
.step-stage img {
  max-height: 430px; max-width: 78%; object-fit: contain; position: relative;
  opacity: 0; transform: translateY(10px) scale(0.98);
  transition: opacity 0.4s, transform 0.4s;
}
.step-stage img.on { opacity: 1; transform: none; }

/* video cards */

.vid-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 40px; }
.vid-grid.single { grid-template-columns: 1fr; }
.vid {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); background: #000;
}
.vid video { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.vid .vid-label {
  position: absolute; left: 16px; bottom: 14px; z-index: 3;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85); background: rgba(0, 0, 0, 0.55);
  padding: 6px 12px; border-radius: 100px; pointer-events: none;
  transition: opacity 0.3s;
}
.vid.playing .vid-label { opacity: 0; }
.vid .play {
  position: absolute; inset: 0; z-index: 2; display: flex; align-items: center; justify-content: center;
  background: rgba(0, 0, 0, 0.18); cursor: pointer; border: none; width: 100%;
  transition: background 0.25s;
}
.vid .play:hover { background: rgba(0, 0, 0, 0.05); }
.vid .play span {
  width: 74px; height: 74px; border-radius: 50%; background: rgba(10, 10, 10, 0.62);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.28);
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.25s, background 0.25s;
}
.vid .play:hover span { transform: scale(1.07); background: rgba(30, 30, 30, 0.85); border-color: rgba(255, 255, 255, 0.6); }
.vid .play svg { margin-left: 4px; }

/* gallery rows */

.g3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 40px; }
.g-card {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-card);
  padding: 26px; display: flex; flex-direction: column; gap: 18px;
}
.g-card .g-img { flex: 1; display: flex; align-items: center; justify-content: center; min-height: 240px; }
.g-card img { max-height: 260px; object-fit: contain; }
.g-card figcaption { font-size: 13.5px; color: var(--muted); line-height: 1.5; }

/* specs */

.specs {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 0;
  margin-top: 40px; border-top: 1px solid var(--line);
}
.spec {
  display: grid; grid-template-columns: 190px 1fr; gap: 18px; padding: 15px 4px;
  border-bottom: 1px solid var(--line); font-size: 15px;
}
.spec dt { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint); padding-top: 3px; }
.spec dd { color: var(--text); }

/* why-different columns */

.cols3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 40px; }
.cols3 h4 { font-size: 18px; margin-bottom: 10px; letter-spacing: -0.01em; }
.cols3 p { font-size: 14.5px; color: var(--muted); }
.cols3 .k { font-family: var(--mono); color: var(--accent); font-size: 12px; letter-spacing: 0.14em; display: block; margin-bottom: 12px; }

.wide-visual {
  margin-top: 50px; border-radius: var(--radius); border: 1px solid var(--line);
  background: radial-gradient(100% 130% at 50% 0%, #101010, #070707);
  padding: clamp(24px, 4vw, 54px); display: flex; justify-content: center;
}
.wide-visual img { max-height: 520px; object-fit: contain; }

/* ============================================================
   LOCKCARD page
   ============================================================ */

.rev-bars { margin-top: 46px; display: grid; gap: 16px; }
.rev-row { display: grid; grid-template-columns: 90px 1fr 110px; gap: 18px; align-items: center; }
.rev-year { font-family: var(--mono); font-size: 12.5px; color: var(--muted); letter-spacing: 0.08em; }
.rev-track { height: 34px; border-radius: 8px; background: rgba(255, 255, 255, 0.045); overflow: hidden; }
.rev-fill {
  height: 100%; width: 0; border-radius: 8px;
  background: linear-gradient(90deg, #2a2a28, var(--text));
  transition: width 1.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.rev-row:last-child .rev-fill { background: linear-gradient(90deg, #4a4a46, #ffffff); }
.rev-val { font-family: var(--mono); font-size: 14px; text-align: right; font-variant-numeric: tabular-nums; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 4.5vw, 60px); align-items: center; margin-top: 46px; }
.split .img-card { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); position: relative; }
.split .img-card img { width: 100%; height: 100%; object-fit: cover; }
.img-credit {
  position: absolute; right: 12px; bottom: 10px; font-family: var(--mono);
  font-size: 9.5px; letter-spacing: 0.08em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55); background: rgba(0, 0, 0, 0.45); padding: 4px 8px; border-radius: 6px;
}

.facts { margin-top: 26px; display: grid; gap: 12px; }
.fact { display: grid; grid-template-columns: 22px 1fr; gap: 12px; color: var(--muted); font-size: 15.5px; }
.fact .tick { color: var(--accent); font-family: var(--mono); }
.fact strong { color: var(--text); font-weight: 600; }

.machines { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }

.modules-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 40px; }
.module { border-radius: 18px; overflow: hidden; border: 1px solid var(--line); position: relative; aspect-ratio: 4 / 3; }
.module img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; filter: saturate(0.95); }
.module:hover img { transform: scale(1.04); }
.module figcaption {
  position: absolute; left: 12px; bottom: 10px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.9); background: rgba(0, 0, 0, 0.5); padding: 5px 10px; border-radius: 100px;
}

/* pendulum */

.pend-wrap {
  margin-top: 46px; display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: stretch;
}
.pend-photo { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.pend-photo img { width: 100%; height: 100%; object-fit: cover; }
.pend-stage {
  position: relative; border-radius: var(--radius); border: 1px solid var(--line);
  background:
    radial-gradient(120% 100% at 50% 0%, rgba(255, 255, 255, 0.05), transparent 55%),
    #0a0a0a;
  min-height: 420px; overflow: hidden;
}
#pendulum { position: absolute; inset: 0; width: 100%; height: 100%; cursor: grab; touch-action: none; }
#pendulum.grabbing { cursor: grabbing; }
.pend-hint {
  position: absolute; left: 50%; bottom: 16px; transform: translateX(-50%);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--faint); pointer-events: none; transition: opacity 0.4s;
}

/* stat row inline (store proof) */

.mini-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; }
.mini-stats .stat b { font-size: clamp(22px, 2.6vw, 30px); }

/* ---------- reveal animations ---------- */

.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.6, 0.2, 1); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }

/* capture/testing mode (?flat=1) */
html.flat .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
html.flat { scroll-behavior: auto; }
html.flat .hero { min-height: 780px; }
html.flat .rev-fill { transition: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .status .pulse { animation: none; }
  * { transition-duration: 0.01ms !important; }
}

/* ?flat=1 capture/testing mode — everything visible, nothing animated */
html.flat .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
html.flat .rev-fill { transition: none !important; }
html.flat .status .pulse { animation: none !important; }

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  .stats { grid-template-columns: repeat(3, 1fr); gap: 26px 18px; }
  .g3, .modules-grid, .cols3 { grid-template-columns: repeat(2, 1fr); }
  .tile { grid-template-columns: 1fr; min-height: 0; }
  .tile-visual { min-height: 300px; order: -1; }
  .steps { grid-template-columns: 1fr; }
  .step-stage { position: relative; top: 0; min-height: 380px; order: -1; }
  .p-hero-grid, .split, .now-card, .pend-wrap { grid-template-columns: 1fr; }
  .now-img { min-height: 260px; order: -1; }
  .now-img::after { background: linear-gradient(0deg, #0b0b0b 0%, transparent 45%); }
  .hero-grid { grid-template-columns: 1fr; gap: 26px; }
  .hero-portrait img { max-width: 300px; margin: 0; }
  .specs { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav-links a:not(.cta) { display: none; }
  .stats, .mini-stats { grid-template-columns: repeat(2, 1fr); }
  .g3, .modules-grid, .cols3, .vid-grid, .patent-grid { grid-template-columns: 1fr; }
  .tl-row { grid-template-columns: 74px 1fr; gap: 14px; }
  .spec { grid-template-columns: 1fr; gap: 4px; }
  .rev-row { grid-template-columns: 64px 1fr 84px; gap: 10px; }
}

/* ============================================================
   v3.1 — render walls, development grid, document thumbs
   ============================================================ */

.render-wall {
  margin-top: 36px; background: var(--light-card);
  border-radius: var(--radius); padding: clamp(22px, 3.5vw, 46px);
}
.render-wall + .render-wall { margin-top: 20px; }
.rw-label {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: #8a8a80; margin-bottom: 22px;
}
.rw-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: clamp(14px, 2vw, 26px); align-items: end;
}
.rw-grid img { width: 100%; height: 190px; object-fit: contain; }
.rw-grid.tall img { height: 230px; }

.dev-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 40px; }
.dev-grid figure {
  position: relative; border-radius: 14px; overflow: hidden;
  border: 1px solid var(--line); aspect-ratio: 16 / 9; background: #000;
}
.dev-grid img { width: 100%; height: 100%; object-fit: cover; }
.dev-grid figcaption {
  position: absolute; left: 10px; bottom: 8px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em;
  text-transform: uppercase; color: rgba(255, 255, 255, 0.6);
}

.patent-doc {
  margin-top: 18px; width: 100%; max-width: 200px;
  border-radius: 6px; border: 1px solid var(--line-strong);
  opacity: 0.92;
}

.img-stack { display: grid; gap: 18px; align-content: start; }

@media (max-width: 900px) {
  .dev-grid { grid-template-columns: repeat(2, 1fr); }
  .rw-grid img { height: 150px; }
  .rw-grid.tall img { height: 170px; }
}
@media (max-width: 560px) {
  .rw-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .rw-grid img, .rw-grid.tall img { height: 110px; }
}

/* ============================================================
   photo slider (index About)
   ============================================================ */

.slider-track {
  display: flex; gap: 18px; overflow-x: auto;
  scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.slider-track::-webkit-scrollbar { display: none; }
.slide {
  flex: 0 0 min(400px, 76vw); scroll-snap-align: start;
  position: relative; margin: 0; border-radius: 18px; overflow: hidden;
  border: 1px solid var(--line); aspect-ratio: 4 / 3; background: var(--bg-card);
}
.slide.wide { aspect-ratio: 16 / 9; flex-basis: min(480px, 82vw); }
.slide img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.95); }
.slide figcaption {
  position: absolute; left: 12px; bottom: 10px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.9); background: rgba(0, 0, 0, 0.5);
  padding: 5px 10px; border-radius: 100px;
}
.slider-nav { display: flex; align-items: center; gap: 10px; margin-top: 18px; }
.slide-btn {
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid var(--line-strong); background: none; color: var(--text);
  font-size: 17px; cursor: pointer; font-family: var(--mono);
  transition: border-color 0.2s, background 0.2s;
}
.slide-btn:hover { border-color: rgba(255, 255, 255, 0.55); background: rgba(255, 255, 255, 0.05); }

/* ============================================================
   gallery
   ============================================================ */

.gal { columns: 3 300px; column-gap: 18px; margin-top: 46px; }
.gal figure {
  break-inside: avoid; margin: 0 0 18px; position: relative;
  border-radius: 16px; overflow: hidden; border: 1px solid var(--line);
  cursor: zoom-in; background: var(--bg-card);
}
.gal img { width: 100%; display: block; transition: transform 0.4s; }
.gal figure:hover img { transform: scale(1.02); }
.gal figcaption {
  position: absolute; left: 10px; bottom: 8px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em;
  text-transform: uppercase; color: rgba(255, 255, 255, 0.85);
  background: rgba(0, 0, 0, 0.5); padding: 4px 9px; border-radius: 100px;
}
.lightbox {
  position: fixed; inset: 0; z-index: 100; display: none;
  align-items: center; justify-content: center;
  background: rgba(3, 3, 3, 0.94); cursor: zoom-out; padding: 4vmin;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 100%; border-radius: 8px; }
.lightbox .lb-cap {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted);
}