:root {
  --bg: #0b0c10;
  --bg-2: #12141a;
  --bg-3: #1a1d25;
  --line: #252935;
  --text: #e7e9ee;
  --muted: #9097a6;
  --faint: #636a79;
  --accent: #8f7dff;
  --accent-2: #5ee1c8;
  --code-bg: #0f1116;
  --radius: 10px;
  --gutter: clamp(16px, 3vw, 40px);
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto, sans-serif;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--mono); font-size: 0.9em; background: var(--bg-3); padding: 1px 5px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -0.01em; }

.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  height: 56px; padding: 0 var(--gutter);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.mark { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text); }
.mark:hover { text-decoration: none; }
.logo { width: 22px; height: 22px; border-radius: 6px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.top nav { display: flex; gap: clamp(12px, 3vw, 28px); }
.top nav a { color: var(--muted); font-size: 15px; }
.top nav a:hover { color: var(--text); text-decoration: none; }

.hero { padding: 24px var(--gutter) 8px; max-width: 2200px; margin: 0 auto; }
.hero-media {
  position: relative; cursor: zoom-in;
  aspect-ratio: 16 / 9; max-height: 78vh; width: 100%;
  border-radius: var(--radius); overflow: hidden; background: #000;
}
.hero-media video { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero-note {
  position: absolute; left: 14px; bottom: 12px;
  font: 12px/1.3 var(--mono); color: #fff; opacity: 0.85;
  background: rgba(0, 0, 0, 0.45); padding: 5px 9px; border-radius: 6px;
}
.intro {
  display: grid; gap: clamp(20px, 4vw, 56px);
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  padding: clamp(28px, 4vw, 56px) 0 8px;
}
.intro h1 { font-size: clamp(30px, 4.2vw, 54px); font-weight: 750; }
.lede { color: var(--muted); font-size: clamp(16px, 1.3vw, 19px); max-width: 60ch; margin: 18px 0 0; }
.hw { font: 13px/1.4 var(--mono); color: var(--faint); margin-top: 16px; }
.start { display: grid; gap: 14px; align-content: start; }

.section-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 12px 24px; margin-bottom: 20px; }
.section-head h2 { font-size: clamp(24px, 2.4vw, 32px); }
.count { font: 14px var(--mono); color: var(--faint); vertical-align: middle; margin-left: 6px; }
.sub { color: var(--muted); margin: 0; }

.gallery-section { padding: clamp(32px, 5vw, 72px) var(--gutter) 24px; max-width: 2600px; margin: 0 auto; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font: 14px var(--sans); color: var(--muted);
  background: var(--bg-2); border: 1px solid var(--line);
  padding: 6px 13px; border-radius: 999px; cursor: pointer;
}
.chip:hover { color: var(--text); border-color: #384055; }
.chip.on { color: #0b0c10; background: var(--text); border-color: var(--text); }

.grid {
  display: grid; gap: clamp(8px, 1vw, 14px);
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 460px), 1fr));
}
.tile {
  position: relative; margin: 0; cursor: zoom-in;
  aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden;
  background: var(--bg-2); outline: none;
}
.tile[hidden] { display: none; }
.tile img, .tile video { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s ease; }
.tile:hover img, .tile:hover video, .tile:focus-visible img { transform: scale(1.025); }
.tile:focus-visible { box-shadow: 0 0 0 2px var(--accent); }
.tile figcaption {
  position: absolute; inset: auto 0 0 0;
  display: flex; justify-content: space-between; align-items: end; gap: 12px;
  padding: 28px 12px 10px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.72));
  color: #fff; font-size: 14px;
}
.tile figcaption span { font: 12px var(--mono); opacity: 0.8; white-space: nowrap; }
.badge {
  position: absolute; top: 10px; left: 10px;
  font: 11px/1 var(--mono); letter-spacing: 0.03em; color: #fff;
  background: rgba(0, 0, 0, 0.5); padding: 5px 7px; border-radius: 5px;
}
.is-video .badge { background: var(--accent); color: #0b0c10; font-weight: 700; }

.crates-section {
  display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: clamp(20px, 4vw, 56px);
  padding: clamp(40px, 6vw, 88px) var(--gutter); max-width: 1400px; margin: 0 auto;
}
.toc { position: sticky; top: 76px; align-self: start; max-height: calc(100vh - 96px); overflow: auto; }
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li { margin-bottom: 14px; }
.toc span { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--faint); margin-bottom: 4px; }
.toc a { display: block; color: var(--muted); font: 14px/1.9 var(--mono); }
.toc a:hover { color: var(--text); text-decoration: none; }
.group { margin-top: 44px; }
.group > h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--faint); font-weight: 600; margin-bottom: 14px; }
.crates { display: grid; gap: 18px; }
.crate { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(16px, 2vw, 24px); }
.crate header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; }
.crate h3 { font: 600 19px var(--mono); }
.crate h3 a { color: var(--text); }
.crate > p { color: var(--muted); margin: 10px 0 14px; max-width: 80ch; }
.crate .notes { color: var(--muted); font-size: 14px; margin: -4px 0 14px; padding-left: 18px; }
.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pill { font: 12px var(--mono); color: var(--muted); border: 1px solid var(--line); padding: 2px 8px; border-radius: 999px; }
.pill.good { color: var(--accent-2); border-color: color-mix(in srgb, var(--accent-2) 40%, transparent); }

.code { position: relative; background: var(--code-bg); border: 1px solid var(--line); border-radius: 8px; margin-top: 10px; overflow: hidden; }
.code-head { display: flex; justify-content: space-between; align-items: center; padding: 6px 8px 6px 14px; border-bottom: 1px solid var(--line); font: 12px var(--mono); color: var(--faint); }
.code pre { margin: 0; padding: 14px; overflow-x: auto; font: 13.5px/1.6 var(--mono); tab-size: 4; }
.code pre code { background: none; padding: 0; font-size: inherit; }
.copy { font: 12px var(--sans); color: var(--muted); background: var(--bg-3); border: 1px solid var(--line); border-radius: 5px; padding: 3px 9px; cursor: pointer; }
.copy:hover { color: var(--text); }
.copy.solo { position: absolute; top: 8px; right: 8px; }
.copy.done { color: var(--accent-2); }
.kw { color: #c792ea; }
.ty { color: #82aaff; }
.str { color: #c3e88d; }
.num { color: #f78c6c; }
.com { color: #6b7386; font-style: italic; }
.mac { color: #89ddff; }
.lt { color: #ffcb6b; }
.key { color: #82aaff; }
.sec { color: #c792ea; }

.foot { border-top: 1px solid var(--line); padding: 28px var(--gutter) 40px; color: var(--faint); font-size: 13px; }
.foot p { margin: 4px auto; max-width: 1400px; }

.lightbox {
  position: fixed; inset: 0; z-index: 50;
  display: grid; grid-template-rows: minmax(0, 1fr) auto;
  background: rgba(5, 6, 8, 0.97);
}
.lightbox[hidden] { display: none; }
.lb-stage { position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden; padding: 12px 64px 0; }
.lb-stage img, .lb-stage video { max-width: 100%; max-height: 100%; object-fit: contain; display: block; cursor: zoom-in; }
.lb-stage.zoom { overflow: auto; display: block; padding: 0; }
.lb-stage.zoom img { max-width: none; max-height: none; cursor: zoom-out; }
.lb-btn {
  position: absolute; z-index: 2;
  width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--line); background: rgba(18, 20, 26, 0.85); color: var(--text);
  font-size: 22px; line-height: 1; cursor: pointer;
}
.lb-btn:hover { background: var(--bg-3); }
.lb-close { top: 14px; right: 14px; font-size: 16px; }
.lb-prev { left: 12px; top: 45%; }
.lb-next { right: 12px; top: 45%; }
.lb-info {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: start; gap: 12px 32px;
  padding: 14px var(--gutter) 18px; border-top: 1px solid var(--line);
}
.lb-text { min-width: 0; flex: 1 1 420px; }
.lb-text h3 { font-size: 18px; }
.lb-text p { margin: 4px 0 8px; color: var(--muted); }
.lb-label { display: flex; flex-wrap: wrap; gap: 6px; }
.lb-label span { font: 12px var(--mono); color: var(--text); background: var(--bg-3); border-radius: 5px; padding: 3px 8px; }
.lb-side { display: flex; align-items: start; gap: 14px; flex-wrap: wrap; }
.lb-side details { font-size: 13px; color: var(--muted); max-width: 520px; }
.lb-side summary { cursor: pointer; color: var(--text); }
.lb-side dl { display: grid; grid-template-columns: auto 1fr; gap: 3px 12px; margin: 8px 0 0; }
.lb-side dt { color: var(--faint); }
.lb-side dd { margin: 0; font-family: var(--mono); font-size: 12px; }
.lb-download { font-size: 13px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 6px; color: var(--text); white-space: nowrap; }
.lb-download[hidden] { display: none; }

@media (max-width: 900px) {
  .intro { grid-template-columns: minmax(0, 1fr); }
  .crates-section { grid-template-columns: minmax(0, 1fr); }
  .toc { display: none; }
  .lb-stage { padding: 56px 0 0; }
  .lb-prev, .lb-next { top: auto; bottom: 8px; }
  .lb-info { padding-bottom: 64px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tile img, .tile video { transition: none; }
}

@media (max-width: 600px) {
  .hero-note { display: none; }
}