/* Site styles. Tokens follow design/SPEC.md and design/logo/final/README.md. */
:root {
  --bg: #0b0d0e;
  --bg-root: #111315;
  --panel: #191c1f;
  --field: #23272b;
  --hover: #2b3035;
  --line: #30353a;
  --line-strong: #59636c;
  --text: #e8ecef;
  --text-2: #a1a9b1;
  --muted: #78818a;
  --mint: #64d8be;
  --mint-hover: #7ce1ca;
  --mint-press: #4cc4aa;
  --mint-on: #10251f;
  --mint-soft: rgba(100, 216, 190, 0.1);
  --mint-glow: rgba(100, 216, 190, 0.35);
  --clip-video: #354c57;
  --clip-audio: #344d46;
  --clip-text: #544d3f;
  --clip-pip: #454553;

  --sans: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Source Han Sans SC", "Noto Sans SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Segoe UI", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.2, 0.7, 0.1, 1);
  --wrap: 1200px;
  --gutter: clamp(20px, 5vw, 48px);
  --nav-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, picture { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
::selection { background: var(--mint); color: var(--mint-on); }
:focus-visible { outline: 2px solid var(--mint); outline-offset: 3px; border-radius: 6px; }

/* Film grain over everything, very faint. */
body::after {
  content: "";
  position: fixed;
  inset: -50%;
  z-index: 100;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { width: min(100% - 2 * var(--gutter), var(--wrap)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 200; background: var(--mint); color: var(--mint-on); padding: 8px 14px; border-radius: 6px; font-weight: 600; }
.skip:focus { top: 12px; }

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), backdrop-filter 0.4s;
  border-bottom: 1px solid transparent;
}
.nav.is-solid {
  background: rgba(11, 13, 14, 0.72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}
.nav .wrap { display: flex; align-items: center; gap: 32px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; letter-spacing: 0.02em; }
.brand img { width: 26px; height: 26px; }
.brand small { color: var(--text-2); font-weight: 500; font-size: 13px; letter-spacing: 0; }
.nav-links { display: flex; gap: 28px; margin-left: auto; font-size: 14px; color: var(--text-2); }
.nav-links a { position: relative; transition: color 0.2s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 1px; background: var(--mint); transform: scaleX(0); transform-origin: left; transition: transform 0.3s var(--ease); }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { transform: scaleX(1); }
.nav .btn { padding: 8px 16px; font-size: 14px; }
@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav .btn { margin-left: auto; }
  .brand small { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 16px;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.25s var(--ease), background 0.2s, border-color 0.2s, box-shadow 0.3s, color 0.2s;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-primary { background: var(--mint); color: var(--mint-on); box-shadow: 0 0 0 0 var(--mint-glow), 0 10px 40px -12px var(--mint-glow); }
.btn-primary:hover { background: var(--mint-hover); transform: translateY(-1px); box-shadow: 0 0 0 6px rgba(100, 216, 190, 0.12), 0 14px 50px -10px var(--mint-glow); }
.btn-primary:active { background: var(--mint-press); transform: translateY(0); }
.btn-ghost { background: rgba(255, 255, 255, 0.04); border-color: rgba(255, 255, 255, 0.14); color: var(--text); }
.btn-ghost:hover { border-color: rgba(100, 216, 190, 0.6); background: var(--mint-soft); }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn .sub { font-weight: 500; opacity: 0.72; font-size: 0.86em; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
  padding: calc(var(--nav-h) + 40px) 0 120px;
}
.hero-art { position: absolute; inset: 0; z-index: -2; }
.hero-art picture, .hero-art img { width: 100%; height: 100%; }
.hero-art img { object-fit: cover; object-position: 82% 50%; transform-origin: 78% 55%; animation: heroIn 2.6s var(--ease) both; }
.hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, var(--bg) 0%, rgba(11, 13, 14, 0.86) 32%, rgba(11, 13, 14, 0.15) 62%, rgba(11, 13, 14, 0) 100%),
    linear-gradient(0deg, var(--bg) 0%, rgba(11, 13, 14, 0) 34%),
    linear-gradient(180deg, rgba(11, 13, 14, 0.7) 0%, rgba(11, 13, 14, 0) 22%);
}
/* A slow mint light sweeping across the sculpture. */
.hero-sweep {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(40% 60% at var(--sx, 74%) 62%, rgba(100, 216, 190, 0.18), transparent 70%);
  mix-blend-mode: screen;
  animation: sweep 9s ease-in-out infinite alternate;
}
@keyframes heroIn { from { transform: scale(1.12); opacity: 0; filter: brightness(0.4); } to { transform: scale(1); opacity: 1; filter: none; } }
@keyframes sweep { from { --sx: 64%; opacity: 0.6; } to { --sx: 86%; opacity: 1; } }
@property --sx { syntax: "<percentage>"; inherits: false; initial-value: 74%; }

.hero-copy { max-width: 700px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--mint);
  font-weight: 600;
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; }
.hero h1 {
  margin: 22px 0 0;
  font-size: clamp(46px, 8.4vw, 112px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-weight: 700;
}
.hero h1 .line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.hero h1 .line > span { display: inline-block; animation: rise 1.2s var(--ease) both; }
.hero h1 .line:nth-child(2) > span { animation-delay: 0.12s; }
.hero h1 em { font-style: normal; color: var(--mint); }
.hero .lead { margin: 28px 0 0; max-width: 520px; font-size: clamp(17px, 1.6vw, 20px); color: var(--text-2); animation: fadeUp 1s 0.4s var(--ease) both; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; animation: fadeUp 1s 0.55s var(--ease) both; }
.hero .meta { margin-top: 18px; font-size: 13px; color: var(--muted); animation: fadeUp 1s 0.7s var(--ease) both; }
.hero .meta a { color: var(--text-2); border-bottom: 1px solid var(--line-strong); }
.hero .meta a:hover { color: var(--mint); border-color: var(--mint); }
@keyframes rise { from { transform: translateY(105%); } to { transform: none; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 32px;
  translate: -50% 0;
  display: grid;
  justify-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--muted);
}
.scroll-cue i { width: 1px; height: 44px; background: linear-gradient(var(--mint), transparent); transform-origin: top; animation: cue 2.2s var(--ease) infinite; }
@keyframes cue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- Showcase (window that flattens on scroll) ---------- */
.showcase { position: relative; padding: 0 0 clamp(80px, 12vw, 160px); perspective: 1600px; }
.showcase::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 18%;
  width: 80%;
  height: 60%;
  translate: -50% 0;
  background: radial-gradient(closest-side, rgba(100, 216, 190, 0.22), transparent);
  filter: blur(40px);
  z-index: -1;
}
.window {
  --p: 0;
  margin-inline: auto;
  width: min(100% - 2 * var(--gutter), 1280px);
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg-root);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 50px 120px -30px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(0, 0, 0, 0.6);
  transform: rotateX(calc((1 - var(--p)) * 22deg)) scale(calc(0.9 + var(--p) * 0.1)) translateY(calc((1 - var(--p)) * -40px));
  transform-origin: 50% 0%;
  will-change: transform;
}
.window .chrome { display: flex; gap: 8px; padding: 12px 14px; background: #15181a; border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
.window .chrome i { width: 11px; height: 11px; border-radius: 50%; background: #3a3f44; }
.window .chrome i:nth-child(1) { background: #ff5f57; }
.window .chrome i:nth-child(2) { background: #febc2e; }
.window .chrome i:nth-child(3) { background: #28c840; }
.window img { width: 100%; height: auto; aspect-ratio: 16 / 10; }

/* ---------- Ticker ---------- */
.ticker {
  border-block: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
  padding: 22px 0;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.ticker-track { display: flex; width: max-content; animation: ticker 40s linear infinite; }
.ticker-track span { display: inline-flex; align-items: center; gap: 28px; padding-right: 28px; font-size: clamp(20px, 2.6vw, 32px); font-weight: 600; color: rgba(232, 236, 239, 0.18); white-space: nowrap; }
.ticker-track span::after { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--mint); opacity: 0.7; transform: rotate(45deg); }
@keyframes ticker { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
section { position: relative; }
.section { padding: clamp(96px, 14vw, 180px) 0; }
.kicker { font-family: var(--mono); font-size: 13px; color: var(--mint); letter-spacing: 0.12em; }
.h2 { margin: 14px 0 0; font-size: clamp(34px, 5.4vw, 68px); line-height: 1.12; letter-spacing: -0.01em; font-weight: 700; }
.h2 .dim { color: var(--muted); }
.intro { max-width: 620px; margin-top: 22px; font-size: 18px; color: var(--text-2); }

/* Big feature chapters */
.chapter { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(32px, 6vw, 88px); align-items: center; padding: clamp(64px, 9vw, 120px) 0; }
.chapter.flip { grid-template-columns: 7fr 5fr; }
.chapter.flip .chapter-copy { order: 2; }
.chapter-num {
  font-size: clamp(80px, 11vw, 150px);
  line-height: 0.9;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(100, 216, 190, 0.45);
  font-family: "Inter", -apple-system, "Segoe UI", sans-serif;
  font-variant-numeric: tabular-nums;
}
.chapter h3 { margin: 18px 0 0; font-size: clamp(30px, 3.8vw, 48px); line-height: 1.15; font-weight: 700; }
.chapter p { margin: 18px 0 0; color: var(--text-2); font-size: 17px; max-width: 460px; }
.ticks { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 10px; font-size: 15px; color: var(--text); }
.ticks li { display: flex; gap: 12px; align-items: baseline; }
.ticks li::before { content: ""; flex: none; width: 6px; height: 6px; border-radius: 1px; background: var(--mint); transform: translateY(-2px) rotate(45deg); }
.shot {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--panel);
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.8);
  cursor: zoom-in;
  transition: transform 0.6s var(--ease), border-color 0.3s;
}
.shot:hover { transform: translateY(-4px); border-color: rgba(100, 216, 190, 0.35); }
.shot img { width: 100%; height: auto; aspect-ratio: 16 / 10; }
.shot::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(11, 13, 14, 0.3)); pointer-events: none; }

/* Animated magnetic timeline illustration */
.tl {
  --unit: 1;
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px) 0 0 / 100% 25%,
    var(--panel);
  overflow: hidden;
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.8);
}
.tl-ruler { position: absolute; left: 0; right: 0; top: 0; height: 13%; border-bottom: 1px solid var(--line); background: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 5%) bottom / 100% 30% no-repeat, repeating-linear-gradient(90deg, var(--line-strong) 0 1px, transparent 1px 25%) bottom / 100% 60% no-repeat; }
.tl-row { position: absolute; left: 4%; right: 4%; height: 18%; }
.tl-row.r1 { top: 22%; }
.tl-row.r2 { top: 46%; }
.tl-row.r3 { top: 70%; }
.clip { position: absolute; top: 0; bottom: 0; border-radius: 6px; border: 1px solid rgba(255, 255, 255, 0.1); overflow: hidden; }
.clip::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 22px); }
.clip b { position: absolute; left: 8px; top: 6px; font-size: clamp(9px, 1vw, 12px); font-weight: 500; color: rgba(232, 236, 239, 0.85); white-space: nowrap; }
.clip.v { background: var(--clip-video); }
.clip.t { background: var(--clip-text); }
.clip.a { background: var(--clip-audio); }
.clip.a::before { background: repeating-linear-gradient(90deg, rgba(178, 208, 196, 0.5) 0 2px, transparent 2px 5px); mask: linear-gradient(transparent 35%, #000 35% 65%, transparent 65%); -webkit-mask: linear-gradient(transparent 35%, #000 35% 65%, transparent 65%); }
.c1 { left: 0; width: 26%; }
.c2 { left: 26%; width: 22%; animation: c2 6s var(--ease) infinite; }
.c3 { left: 48%; width: 30%; animation: c3 6s var(--ease) infinite; }
.c4 { left: 78%; width: 22%; animation: c4 6s var(--ease) infinite; }
.ct { left: 10%; width: 30%; }
.ca { left: 0; width: 92%; }
.c2.sel { box-shadow: inset 0 0 0 2px var(--mint); }
/* c2 is lifted out; the rest close the gap and snap. */
@keyframes c2 { 0%, 18% { transform: none; opacity: 1; } 32% { transform: translateY(-140%) scale(0.96); opacity: 0.9; } 46%, 100% { transform: translateY(-140%) scale(0.9); opacity: 0; } }
@keyframes c3 { 0%, 40% { left: 48%; } 56%, 86% { left: 26%; } 100% { left: 48%; } }
@keyframes c4 { 0%, 44% { left: 78%; } 60%, 86% { left: 56%; } 100% { left: 78%; } }
.snap { position: absolute; top: 18%; bottom: 6%; left: calc(4% + 92% * 0.26); width: 2px; background: var(--mint); box-shadow: 0 0 18px var(--mint); opacity: 0; animation: snap 6s var(--ease) infinite; }
@keyframes snap { 0%, 52% { opacity: 0; } 56% { opacity: 1; } 70%, 100% { opacity: 0; } }
.playhead { position: absolute; top: 4%; bottom: 0; left: 0; width: 2px; background: var(--mint); animation: ph 6s linear infinite; }
.playhead::before { content: ""; position: absolute; top: 0; left: -6px; width: 14px; height: 14px; border-radius: 3px 3px 7px 7px; background: var(--mint); }
@keyframes ph { from { left: 6%; } to { left: 94%; } }
.tl-label { position: absolute; right: 14px; bottom: 12px; font-size: 12px; color: var(--mint); font-family: var(--mono); display: flex; align-items: center; gap: 6px; }
.tl-label::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 10px var(--mint); }

/* ---------- Bento ---------- */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; margin-top: 64px; }
.card {
  --mx: 50%;
  --my: 0%;
  position: relative;
  grid-column: span 2;
  min-height: 340px;
  padding: 30px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(25, 28, 31, 0.9), rgba(17, 19, 21, 0.9));
  border: 1px solid rgba(255, 255, 255, 0.07);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  isolation: isolate;
}
.card::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(420px circle at var(--mx) var(--my), rgba(100, 216, 190, 0.1), transparent 60%); opacity: 0; transition: opacity 0.4s; }
.card:hover::before { opacity: 1; }
.card.wide { grid-column: span 4; }
.card.half { grid-column: span 3; }
.card h3 { margin: 0; font-size: 24px; line-height: 1.3; font-weight: 700; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.card p { margin: 10px 0 0; color: var(--text-2); font-size: 15px; max-width: 520px; }
.card .num { font-family: var(--mono); font-size: 12px; color: var(--mint); letter-spacing: 0.1em; margin-bottom: 14px; }
.card .art { margin-top: auto; padding-top: 26px; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: 0.04em; color: var(--mint); background: var(--mint-soft); border: 1px solid rgba(100, 216, 190, 0.35); }
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--mint); animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.25; } }

.card-shot { border-radius: 10px; overflow: hidden; border: 1px solid rgba(255, 255, 255, 0.08); cursor: zoom-in; margin-bottom: -60px; transition: transform 0.6s var(--ease); }
.card:hover .card-shot { transform: translateY(-6px); }
.card-shot img { width: 100%; height: auto; aspect-ratio: 16 / 10; }

/* Filters & transitions */
.swatches { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.sw { position: relative; aspect-ratio: 1; border-radius: 8px; overflow: hidden; background: url("../img/hero-empty-1600.jpg") 72% 60% / 520% auto; }
.sw span { position: absolute; left: 0; right: 0; bottom: 0; padding: 4px 6px; font-size: 11px; background: linear-gradient(transparent, rgba(0, 0, 0, 0.7)); }
.sw:nth-child(1) { filter: saturate(1.2) brightness(1.15) hue-rotate(-8deg); }
.sw:nth-child(2) { filter: sepia(0.35) saturate(1.4) hue-rotate(-18deg) brightness(1.1); }
.sw:nth-child(3) { filter: hue-rotate(18deg) saturate(1.2) brightness(1.05); }
.sw:nth-child(4) { filter: contrast(1.2) sepia(0.2) saturate(0.85); }
.sw:nth-child(5) { filter: grayscale(1) contrast(1.15) brightness(1.1); }
.sw:nth-child(6) { filter: sepia(0.65) contrast(0.95) brightness(1.05); }
.sw:nth-child(7) { filter: saturate(2) contrast(1.1) brightness(1.1); }
.sw:nth-child(8) { filter: brightness(1.25) contrast(0.85) saturate(0.8); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.chip { padding: 4px 10px; border-radius: 6px; font-size: 12px; color: var(--text-2); background: var(--field); border: 1px solid var(--line); }
.chip.on { color: var(--mint); border-color: rgba(100, 216, 190, 0.5); background: var(--mint-soft); }

/* Keyframe curve */
.kf { position: relative; height: 150px; border-radius: 10px; background: var(--bg-root); border: 1px solid var(--line); overflow: hidden; }
.kf svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.kf .curve { fill: none; stroke: var(--mint); stroke-width: 2; stroke-dasharray: 600; stroke-dashoffset: 600; }
.in-view .kf .curve { animation: draw 2.4s var(--ease) 0.2s forwards; }
.kf .dot { fill: var(--bg-root); stroke: var(--mint); stroke-width: 2; }
.kf .ball { fill: var(--mint); filter: drop-shadow(0 0 6px var(--mint)); offset-path: path("M20 120 C 80 120, 90 30, 150 30 S 230 100, 280 90 S 340 20, 380 24"); offset-distance: 0%; }
.in-view .kf .ball { animation: ride 4s var(--ease) 0.6s infinite alternate; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes ride { to { offset-distance: 100%; } }
.kf-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; }

/* Export meters */
.enc { display: grid; gap: 10px; }
.enc-row { display: grid; grid-template-columns: 64px 1fr 52px; gap: 12px; align-items: center; font-size: 13px; color: var(--text-2); }
.enc-bar { height: 6px; border-radius: 3px; background: var(--field); overflow: hidden; }
.enc-bar i { display: block; height: 100%; width: var(--w); background: linear-gradient(90deg, var(--mint-press), var(--mint)); transform: scaleX(0); transform-origin: left; transition: transform 1.6s var(--ease); }
.in-view .enc-bar i { transform: scaleX(1); }
.enc-row b { color: var(--text); font-weight: 600; font-family: var(--mono); font-size: 12px; text-align: right; }

/* AI card */
.card.ai { background: radial-gradient(120% 140% at 100% 0%, rgba(100, 216, 190, 0.16), transparent 50%), linear-gradient(180deg, #14191a, #0f1213); border-color: rgba(100, 216, 190, 0.22); }
.prompt { font-family: var(--mono); font-size: 14px; border-radius: 10px; background: rgba(0, 0, 0, 0.35); border: 1px solid rgba(255, 255, 255, 0.08); padding: 16px 18px; display: grid; gap: 8px; }
.prompt .you { color: var(--text); }
.prompt .you::before { content: "› "; color: var(--mint); }
.prompt .step { color: var(--text-2); opacity: 0; transform: translateY(6px); transition: opacity 0.5s var(--ease), transform 0.5s var(--ease); }
.prompt .step::before { content: "✓ "; color: var(--mint); }
.in-view .prompt .step { opacity: 1; transform: none; }
.in-view .prompt .step:nth-child(2) { transition-delay: 0.6s; }
.in-view .prompt .step:nth-child(3) { transition-delay: 1.2s; }
.in-view .prompt .step:nth-child(4) { transition-delay: 1.8s; }
.typed { display: inline-block; overflow: hidden; white-space: nowrap; vertical-align: bottom; max-width: 100%; border-right: 2px solid var(--mint); animation: caret 1s step-end infinite; }
@keyframes caret { 50% { border-color: transparent; } }

/* Extension card */
.ext { border-radius: 10px; background: var(--bg-root); border: 1px solid var(--line); padding: 16px; display: grid; gap: 12px; }
.ext-head { display: flex; align-items: center; gap: 12px; }
.ext-icon { width: 36px; height: 36px; border-radius: 8px; background: var(--mint-soft); border: 1px solid rgba(100, 216, 190, 0.3); display: grid; place-items: center; color: var(--mint); }
.ext-icon svg { width: 18px; height: 18px; }
.ext-head div { flex: 1; min-width: 0; }
.ext-head strong { display: block; font-size: 14px; }
.ext-head small { color: var(--muted); font-size: 12px; }
.ext-bar { height: 4px; border-radius: 2px; background: var(--field); overflow: hidden; }
.ext-bar i { display: block; height: 100%; width: 100%; background: var(--mint); transform: scaleX(0.05); transform-origin: left; }
.in-view .ext-bar i { animation: dl 3.2s var(--ease) 0.3s forwards; }
@keyframes dl { to { transform: scaleX(1); } }
.ext-foot { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-2); font-family: var(--mono); }

@media (max-width: 980px) {
  .chapter, .chapter.flip { grid-template-columns: 1fr; }
  .chapter.flip .chapter-copy { order: 0; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .card, .card.wide, .card.half { grid-column: span 2; min-height: 0; }
}
@media (min-width: 640px) and (max-width: 980px) {
  .card.pair { grid-column: span 1; }
}

/* ---------- Gallery ---------- */
.gallery-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.gallery-nav { display: flex; gap: 10px; }
.icon-btn { width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, 0.14); background: rgba(255, 255, 255, 0.03); display: grid; place-items: center; cursor: pointer; transition: border-color 0.2s, background 0.2s; }
.icon-btn:hover { border-color: var(--mint); background: var(--mint-soft); }
.icon-btn svg { width: 18px; height: 18px; }
.strip {
  display: flex;
  gap: 20px;
  margin-top: 48px;
  padding: 0 max(var(--gutter), (100vw - var(--wrap)) / 2) 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: max(var(--gutter), (100vw - var(--wrap)) / 2);
  scrollbar-width: none;
  overscroll-behavior-x: contain;
}
.strip::-webkit-scrollbar { display: none; }
.strip figure { flex: 0 0 min(78vw, 760px); margin: 0; scroll-snap-align: start; }
.strip button { display: block; width: 100%; padding: 0; border: 0; background: none; cursor: zoom-in; border-radius: 12px; overflow: hidden; border-style: solid; border-width: 1px; border-color: rgba(255, 255, 255, 0.08); transition: border-color 0.3s, transform 0.5s var(--ease); }
.strip button:hover { border-color: rgba(100, 216, 190, 0.4); transform: translateY(-4px); }
.strip img { width: 100%; height: auto; aspect-ratio: 16 / 10; }
.strip figcaption { margin-top: 14px; display: flex; gap: 14px; align-items: baseline; font-size: 15px; color: var(--text); }
.strip figcaption span { font-family: var(--mono); font-size: 12px; color: var(--mint); }
.strip figcaption small { color: var(--muted); font-size: 14px; }

/* Lightbox */
.lightbox { width: 100vw; height: 100vh; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: rgba(5, 6, 7, 0.94); color: var(--text); }
.lightbox::backdrop { background: rgba(0, 0, 0, 0.6); }
.lightbox[open] { display: grid; grid-template-rows: 1fr auto; animation: lbIn 0.35s var(--ease); }
@keyframes lbIn { from { opacity: 0; } }
.lb-stage { display: grid; place-items: center; padding: 64px clamp(12px, 6vw, 96px) 12px; min-height: 0; }
.lb-stage img { max-width: 100%; max-height: 100%; width: auto; height: auto; border-radius: 10px; box-shadow: 0 30px 100px rgba(0, 0, 0, 0.7); animation: lbImg 0.4s var(--ease); }
@keyframes lbImg { from { opacity: 0; transform: scale(0.97); } }
.lb-bar { display: flex; align-items: center; justify-content: center; gap: 18px; padding: 16px 20px 24px; font-size: 14px; color: var(--text-2); }
.lb-bar .count { font-family: var(--mono); color: var(--mint); }
.lb-close { position: absolute; top: 16px; right: 16px; }
.lb-prev, .lb-next { position: absolute; top: 50%; translate: 0 -50%; }
.lb-prev { left: 16px; }
.lb-next { right: 16px; }
@media (max-width: 640px) { .lb-prev, .lb-next { display: none; } }

/* ---------- Download ---------- */
.download { text-align: center; overflow: hidden; isolation: isolate; }
.download::before { content: ""; position: absolute; inset: 0; z-index: -1; background: url("../img/hero-empty-1600.jpg") 70% 50% / cover no-repeat; opacity: 0.35; mask-image: radial-gradient(70% 70% at 50% 60%, #000, transparent); -webkit-mask-image: radial-gradient(70% 70% at 50% 60%, #000, transparent); }
.download .mark { width: 88px; height: 88px; margin: 0 auto 28px; filter: drop-shadow(0 0 40px rgba(100, 216, 190, 0.45)); }
.download .intro { margin-inline: auto; }
.dl-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 380px)); gap: 18px; justify-content: center; margin-top: 56px; text-align: left; }
.dl-card { padding: 28px; border-radius: 18px; background: rgba(17, 19, 21, 0.8); border: 1px solid rgba(255, 255, 255, 0.08); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); display: grid; gap: 14px; transition: border-color 0.3s; }
.dl-card.is-mine { border-color: rgba(100, 216, 190, 0.5); box-shadow: 0 0 0 1px rgba(100, 216, 190, 0.2), 0 30px 80px -30px rgba(100, 216, 190, 0.35); }
.dl-card header { display: flex; align-items: center; gap: 12px; }
.dl-card header svg { width: 28px; height: 28px; }
.dl-card h3 { margin: 0; font-size: 20px; }
.dl-card .mine { margin-left: auto; font-size: 12px; color: var(--mint); display: none; }
.dl-card.is-mine .mine { display: inline; }
.dl-card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; font-size: 13px; }
.dl-card dt { color: var(--muted); }
.dl-card dd { margin: 0; color: var(--text-2); overflow-wrap: anywhere; }
.dl-card dd code { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.dl-card .btn { width: 100%; }
.dl-note { margin-top: 28px; font-size: 14px; color: var(--muted); }
.dl-note a { color: var(--mint); }
@media (max-width: 760px) { .dl-grid { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid rgba(255, 255, 255, 0.06); padding: 56px 0 48px; font-size: 14px; color: var(--muted); }
.footer .wrap { display: flex; flex-wrap: wrap; gap: 28px; align-items: center; justify-content: space-between; }
.footer .logo { width: 180px; height: auto; }
.footer nav { display: flex; gap: 24px; flex-wrap: wrap; }
.footer nav a:hover { color: var(--mint); }

/* ---------- Reveal ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(36px); transition: opacity 1s var(--ease), transform 1s var(--ease); transition-delay: var(--d, 0s); }
.js [data-reveal].in-view { opacity: 1; transform: none; }

/* ---------- Guide page ---------- */
.page-hero { position: relative; padding: calc(var(--nav-h) + 80px) 0 64px; overflow: hidden; isolation: isolate; }
.page-hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: url("../img/hero-1440.jpg") 100% 40% / cover no-repeat; opacity: 0.55; mask-image: linear-gradient(90deg, transparent 30%, #000 80%), linear-gradient(transparent, #000); mask-composite: intersect; -webkit-mask-image: linear-gradient(90deg, transparent 30%, #000 80%); }
.page-hero h1 { margin: 16px 0 0; font-size: clamp(40px, 6vw, 72px); line-height: 1.1; font-weight: 700; }
.page-hero p { margin: 18px 0 0; color: var(--text-2); font-size: 18px; max-width: 560px; }
.guide { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: clamp(32px, 6vw, 80px); padding: 32px 0 120px; }
.toc { position: sticky; top: calc(var(--nav-h) + 32px); align-self: start; display: grid; gap: 2px; font-size: 14px; }
.toc a { padding: 7px 12px; border-left: 1px solid var(--line); color: var(--text-2); transition: color 0.2s, border-color 0.2s; }
.toc a:hover { color: var(--text); }
.toc a.on { color: var(--mint); border-left-color: var(--mint); }
.doc h2 { margin: 0; padding-top: 12px; font-size: clamp(26px, 3vw, 34px); line-height: 1.3; }
.doc h2 + p.sub { margin: 8px 0 0; color: var(--text-2); }
.doc h3 { margin: 36px 0 0; font-size: 19px; display: flex; align-items: center; gap: 10px; }
.doc h3 svg { width: 20px; height: 20px; color: var(--text-2); }
.doc p, .doc li { color: var(--text-2); }
.doc strong { color: var(--text); font-weight: 600; }
.doc .block { padding-bottom: 72px; margin-bottom: 72px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.doc .block:last-child { border-bottom: 0; }
.steps { list-style: none; counter-reset: s; margin: 20px 0 0; padding: 0; display: grid; gap: 14px; }
.steps li { counter-increment: s; position: relative; padding: 18px 20px 18px 64px; border-radius: 12px; background: var(--panel); border: 1px solid rgba(255, 255, 255, 0.05); }
.steps li::before { content: counter(s, decimal-leading-zero); position: absolute; left: 20px; top: 18px; font-family: var(--mono); font-size: 13px; color: var(--mint); }
.steps li strong { display: block; margin-bottom: 2px; }
.callout { margin-top: 20px; padding: 16px 20px; border-radius: 12px; background: var(--mint-soft); border: 1px solid rgba(100, 216, 190, 0.25); color: var(--text); font-size: 15px; }
.callout p { margin: 0; color: var(--text); }
.callout p + p { margin-top: 8px; }
kbd { display: inline-flex; align-items: center; justify-content: center; min-width: 26px; height: 26px; padding: 0 7px; border-radius: 6px; font: 500 13px/1 var(--sans); color: var(--text); background: var(--field); border: 1px solid var(--line-strong); border-bottom-width: 2px; }
code { font-family: var(--mono); font-size: 0.88em; padding: 2px 6px; border-radius: 4px; background: var(--field); color: var(--text); }
pre { margin: 14px 0 0; padding: 14px 16px; border-radius: 10px; background: var(--bg-root); border: 1px solid var(--line); overflow-x: auto; }
pre code { padding: 0; background: none; font-size: 13px; }
.keys { width: 100%; margin-top: 20px; border-collapse: collapse; font-size: 15px; }
.keys th { text-align: left; font-weight: 500; color: var(--muted); font-size: 13px; padding: 0 12px 10px; border-bottom: 1px solid var(--line); }
.keys td { padding: 12px; border-bottom: 1px solid rgba(255, 255, 255, 0.05); color: var(--text-2); vertical-align: middle; }
.keys td:first-child { color: var(--text); }
.keys td kbd + kbd { margin-left: 4px; }
.keys .grp td { padding-top: 28px; color: var(--mint); font-size: 13px; font-family: var(--mono); letter-spacing: 0.08em; border-bottom: 0; }
.guide-shot { margin-top: 20px; border-radius: 12px; overflow: hidden; border: 1px solid rgba(255, 255, 255, 0.08); cursor: zoom-in; }
.guide-shot img { width: 100%; height: auto; aspect-ratio: 16 / 10; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 20px; }
.two > div { padding: 22px; border-radius: 14px; background: var(--panel); border: 1px solid rgba(255, 255, 255, 0.05); }
.two h3 { margin-top: 0; }
.two ol { padding-left: 20px; margin: 12px 0 0; }
.two li + li { margin-top: 6px; }
@media (max-width: 900px) {
  .guide { grid-template-columns: minmax(0, 1fr); }
  .toc { position: static; display: flex; flex-wrap: wrap; gap: 8px; }
  .toc a { border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; }
  .two { grid-template-columns: 1fr; }
  .keys td, .keys th { padding-inline: 6px; }
}

/* 404 */
.lost { min-height: 100vh; min-height: 100svh; display: grid; place-items: center; text-align: center; padding: 24px; }
.lost h1 { font-size: clamp(80px, 18vw, 200px); margin: 0; line-height: 1; color: transparent; -webkit-text-stroke: 1px var(--mint); }
.lost p { color: var(--text-2); }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; animation-delay: 0s !important; transition-duration: 0.001ms !important; transition-delay: 0s !important; scroll-behavior: auto !important; }
  html { scroll-behavior: auto; }
  .js [data-reveal] { opacity: 1; transform: none; }
  .window { transform: none !important; }
  .ticker-track { animation: none; }
  .hero-sweep, .scroll-cue i, .playhead, .snap { animation: none; }
  .c2, .c3, .c4 { animation: none; }
  .kf .curve { stroke-dashoffset: 0; }
  .enc-bar i, .ext-bar i { transform: none; }
  .prompt .step { opacity: 1; transform: none; }
}
.keys td.na { color: var(--muted); }
.btn[aria-disabled="true"] { opacity: 0.5; pointer-events: none; box-shadow: none; }
@media (max-width: 760px) {
  .hero-art img { object-position: 70% 50%; opacity: 0.55; }
  .hero-art::after { background: linear-gradient(0deg, var(--bg) 0%, rgba(11, 13, 14, 0.55) 45%, rgba(11, 13, 14, 0.35) 100%); }
  .hero .cta .btn { flex: 1 1 100%; }
}

/* ---------- i18n: language switch + first-visit hint ---------- */
.lang-switch { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-2); padding: 6px 10px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.12); transition: color 0.2s, border-color 0.2s; }
.lang-switch:hover { color: var(--text); border-color: rgba(100, 216, 190, 0.6); }
.lang-switch svg { width: 15px; height: 15px; }
.nav-links + .lang-switch { margin-left: -8px; }
@media (max-width: 760px) { .lang-switch { margin-left: auto; } .nav .lang-switch ~ .btn { margin-left: 0; } }
.lang-hint { position: fixed; z-index: 60; left: 50%; bottom: 20px; transform: translate(-50%, 20px); opacity: 0; display: flex; align-items: center; gap: 14px; max-width: calc(100% - 32px); padding: 10px 10px 10px 18px; border-radius: 999px; background: rgba(25, 28, 31, 0.92); border: 1px solid rgba(255, 255, 255, 0.12); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.7); font-size: 14px; color: var(--text); transition: opacity 0.4s var(--ease), transform 0.4s var(--ease); }
.lang-hint.on { opacity: 1; transform: translate(-50%, 0); }
.lang-hint .icon-btn { width: 34px; height: 34px; }
@media (max-width: 520px) { .lang-hint { border-radius: 16px; flex-wrap: wrap; } }

/* ---------- Breadcrumbs ---------- */
.crumbs ol { list-style: none; margin: 0 0 18px; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--muted); }
.crumbs li + li::before { content: "/"; margin-right: 8px; color: var(--line-strong); }
.crumbs a:hover { color: var(--mint); }
.crumbs [aria-current] { color: var(--text-2); }

/* ---------- Text pages (download, FAQ, compare, changelog, legal) ---------- */
.prose { padding: 24px 0 120px; }
.prose > * { max-width: 880px; }
.prose h2 { margin: 0 0 12px; font-size: clamp(24px, 2.6vw, 30px); line-height: 1.3; }
.prose p, .prose li { color: var(--text-2); }
.prose a:not(.btn) { color: var(--mint); text-decoration: underline; text-decoration-color: rgba(100, 216, 190, 0.45); text-underline-offset: 3px; }
.prose a:not(.btn):hover { text-decoration: underline; }
.prose strong { color: var(--text); font-weight: 600; }
.prose .block { padding-bottom: 48px; margin-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.prose .block:last-child { border-bottom: 0; }
.prose .ticks li { display: block; position: relative; padding-left: 20px; color: var(--text-2); }
.prose .ticks li::before { position: absolute; left: 0; top: 0.72em; transform: rotate(45deg); }
.prose .note { margin-top: 16px; font-size: 13px; color: var(--muted); }
.legal h2 { margin-top: 44px; font-size: 22px; }
.legal .ticks { margin-top: 12px; }
.page-download { padding: 0 0 24px; }
.page-download::before { display: none; }
.page-download .dl-grid { margin-top: 0; }
.dl-card h2 { margin: 0; font-size: 20px; }

/* FAQ */
.faq-item { border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.faq-item summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 0; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; flex: none; font: 400 22px/1 var(--sans); color: var(--mint); transition: transform 0.25s var(--ease); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary h3 { margin: 0; font-size: 18px; font-weight: 600; }
.faq-item summary:hover h3 { color: var(--mint); }
.faq-a { padding: 0 0 22px; }
.faq-a p { margin: 0; }
.faq-more { margin-top: 32px; }

/* Comparison table */
.table-scroll { overflow-x: auto; margin-top: 8px; border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 14px; }
.compare { width: 100%; min-width: 760px; border-collapse: collapse; font-size: 14px; }
.compare caption { caption-side: top; text-align: left; padding: 14px 16px 0; color: var(--muted); font-size: 13px; }
.compare th, .compare td { padding: 12px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid rgba(255, 255, 255, 0.06); color: var(--text-2); }
.compare thead th { color: var(--text); font-weight: 600; font-size: 13px; }
.compare tbody th { color: var(--text); font-weight: 500; white-space: nowrap; }
.compare thead th:nth-child(2), .compare td:nth-child(2) { background: var(--mint-soft); color: var(--text); }
.compare tr:last-child th, .compare tr:last-child td { border-bottom: 0; }

/* Changelog */
.release h2 { display: flex; align-items: baseline; gap: 14px; }
.release h2 small { font: 400 14px/1 var(--mono); color: var(--muted); }
.release .sub { margin: 0; }

/* Home: specs */
.spec-grid { margin: 40px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1px; background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.06); border-radius: 16px; overflow: hidden; }
.spec-grid div { padding: 18px 20px; background: var(--bg); }
.spec-grid dt { font-size: 12px; color: var(--muted); letter-spacing: 0.04em; }
.spec-grid dd { margin: 4px 0 0; color: var(--text); font-size: 15px; }
.spec-more { margin-top: 24px; color: var(--text-2); }
.spec-more a { color: var(--mint); }

/* 404 */
.lost .lost-code { margin: 0; font-size: clamp(80px, 18vw, 200px); font-weight: 700; line-height: 1; color: transparent; -webkit-text-stroke: 1px var(--mint); }
.lost h1 { font-size: clamp(22px, 3vw, 30px); -webkit-text-stroke: 0; color: var(--text); margin: 16px 0 0; line-height: 1.3; }
.lost-links { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 28px; }