:root {
  color-scheme: dark;
  --bg: #0b1017;
  --panel: #111924;
  --panel-2: #0d151f;
  --line: #29384a;
  --ink: #e8eef5;
  --muted: #9cabbc;
  --dim: #718095;
  --cyan: #66e3df;
  --orange: #ffad65;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.65 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
body.game-maximized { overflow: hidden; overscroll-behavior: none; touch-action: none; }
a { color: var(--cyan); text-underline-offset: .2em; }
a:hover { color: #b6fffa; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible { outline: 2px solid var(--orange); outline-offset: 4px; }
code, pre, .eyebrow, .wordmark, .signature { font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace; }
code { color: #c8f5f1; }
.skip { position: absolute; left: 1rem; top: -5rem; z-index: 5; padding: .55rem .8rem; background: var(--orange); color: #17100b; }
.skip:focus { top: 1rem; }
.wrap { width: min(calc(100% - 2.5rem), var(--max)); margin-inline: auto; }
.topbar { position: sticky; top: 0; z-index: 3; border-bottom: 1px solid var(--line); background: rgba(11, 16, 23, .94); backdrop-filter: blur(14px); }
.topbar-inner { min-height: 4.25rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.wordmark { color: var(--ink); text-decoration: none; font-weight: 700; letter-spacing: .12em; }
nav { display: flex; flex-wrap: wrap; gap: 1.25rem; font-size: .88rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a[aria-current="page"], nav a:hover { color: var(--ink); }
main { min-height: 60vh; }
.hero, .page-head { padding: clamp(5rem, 12vw, 9rem) 0 5rem; border-bottom: 1px solid var(--line); background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 4rem 4rem; background-position: center top; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: 4rem; align-items: end; }
.eyebrow { color: var(--orange); font-size: .73rem; font-weight: 700; letter-spacing: .15em; line-height: 1.2; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: 1.08; letter-spacing: -.035em; }
h1 { max-width: 800px; margin-top: 1rem; font-size: clamp(3rem, 8vw, 6.8rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: 1.2rem; }
.lede { max-width: 720px; margin: 1.35rem 0 0; color: var(--muted); font-size: 1.15rem; }
.actions, .button-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.8rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 2.7rem; padding: .6rem .95rem; border: 1px solid var(--cyan); background: var(--cyan); color: #081313; font-weight: 700; text-decoration: none; }
.button:hover { background: #b6fffa; color: #081313; }
.button.secondary { border-color: var(--line); background: transparent; color: var(--ink); }
.button.secondary:hover { border-color: var(--cyan); color: var(--cyan); }
.signal, .panel, .card { border: 1px solid var(--line); background: var(--panel); }
.signal { border-left: 3px solid var(--cyan); padding: 1.25rem; }
.signal strong { display: block; color: var(--cyan); font: 700 .75rem/1.2 ui-monospace, monospace; letter-spacing: .12em; text-transform: uppercase; }
.signal p, .panel p, .card p { margin: .7rem 0 0; color: var(--muted); }
.section { padding: 5.5rem 0; border-bottom: 1px solid var(--line); }
.section-heading { max-width: 760px; margin-bottom: 2rem; }
.section-heading h2 { margin-top: .6rem; }
.section-heading p { margin: 1rem 0 0; color: var(--muted); }
.grid-2, .grid-3, .grid-4 { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.panel, .card { padding: 1.35rem; }
.panel.accent { border-left: 3px solid var(--orange); }
.panel ul, .card ul { margin: .9rem 0 0; padding-left: 1.15rem; color: var(--muted); }
.panel li + li, .card li + li { margin-top: .35rem; }
.code { overflow: auto; border: 1px solid var(--line); background: #080d13; }
pre { margin: 0; padding: 1.25rem; color: #d9e7f1; font-size: .88rem; line-height: 1.7; tab-size: 2; }
.note { margin-top: 1rem; padding: 1rem 1.2rem; border: 1px solid #604b36; background: #1b1711; color: #d6c4af; }
.flow { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; color: var(--muted); font: .82rem ui-monospace, monospace; }
.flow span { border: 1px solid var(--line); padding: .45rem .65rem; background: var(--panel); }
.flow b { color: var(--orange); font-weight: 400; }
.toc { position: sticky; top: 5.5rem; align-self: start; }
.toc ul { margin: .8rem 0 0; padding: 0; list-style: none; }
.toc li + li { margin-top: .4rem; }
.docs-layout { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 3rem; }
.docs-layout article > section { scroll-margin-top: 6rem; }
.docs-layout article h2 { margin-top: 3.2rem; }
.docs-layout article h3 { margin-top: 1.8rem; }
.docs-layout article p { max-width: 760px; color: var(--muted); }
.docs-layout article .code { margin: 1rem 0; }
.route-cards a { display: block; color: var(--ink); text-decoration: none; }
.route-cards a:hover { border-color: var(--cyan); }
.route-cards a h3 { color: var(--cyan); }
.pager { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.pager a { max-width: 48%; }
.stdlib-tools { display: flex; gap: .75rem; align-items: center; margin-bottom: 1rem; }
.stdlib-tools input { width: min(100%, 28rem); padding: .7rem .8rem; border: 1px solid var(--line); background: var(--panel-2); color: var(--ink); font: inherit; }
.stdlib-module { margin: 1rem 0; border: 1px solid var(--line); background: var(--panel); }
.stdlib-module summary { cursor: pointer; padding: 1rem 1.2rem; font-weight: 700; }
.stdlib-module summary::marker { color: var(--orange); }
.stdlib-content { padding: 0 1.2rem 1.2rem; }
.stdlib-content p { color: var(--muted); }
.signature { display: block; overflow-x: auto; margin: .45rem 0; padding: .55rem .7rem; border-left: 2px solid var(--cyan); background: #080d13; color: #d9e7f1; font-size: .82rem; white-space: pre-wrap; }
.meta { color: var(--dim); font-size: .85rem; }
.game-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.game-card { display: flex; flex-direction: column; min-width: 0; }
.game-card .game-copy { flex: 1; }
.game-card .game-size { margin: .55rem 0 0; color: var(--dim); font: .78rem ui-monospace, SFMono-Regular, Consolas, monospace; }
.game-card .game-explanation, .game-card .game-live { margin-top: .55rem; color: var(--dim); font-size: .8rem; }
.game-card .source-links { margin-top: .8rem; color: var(--dim); font-size: .8rem; }
.game-card.secondary { border-color: #394653; }
.controls { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; }
.game-button { padding: .5rem .7rem; border: 1px solid var(--cyan); background: transparent; color: var(--cyan); font: 700 .8rem ui-monospace, monospace; cursor: pointer; }
.game-button:hover { background: var(--cyan); color: #081313; }
.game-button.stop { border-color: var(--line); color: var(--muted); }
.game-stage { display: none; margin-top: 1rem; padding: .6rem; border-top: 1px solid var(--line); background: #080d13; }
.game-stage.is-active { display: block; }
.game-stage iframe { display: block; width: 100%; aspect-ratio: 16 / 9; border: 0; background: #07111f; }
.game-status { min-height: 1.4em; margin-top: .5rem; color: var(--dim); font-size: .8rem; }
.game-stage.is-maximized { position: fixed; inset: 0; z-index: 10; display: flex; flex-direction: column; width: 100vw; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; overflow: hidden; overscroll-behavior: none; touch-action: none; background: var(--bg); }
.game-stage-toolbar { display: flex; flex: 0 0 auto; align-items: center; gap: 1rem; min-height: 3.75rem; padding: .65rem 1rem; border-bottom: 1px solid var(--line); background: var(--panel); }
.game-stage-title { margin: 0; color: var(--ink); font-size: 1rem; letter-spacing: 0; }
.game-stage-metric { min-width: 0; overflow: hidden; color: var(--dim); font: .72rem ui-monospace, SFMono-Regular, Consolas, monospace; text-overflow: ellipsis; white-space: nowrap; }
.game-stage-toolbar .game-button { margin-left: auto; flex: 0 0 auto; }
.game-stage.is-maximized iframe { flex: 1 1 auto; width: 100%; height: auto; min-height: 0; aspect-ratio: auto; border: 0; overscroll-behavior: none; touch-action: none; background: #07111f; }
.source { margin-top: 1rem; border-top: 1px solid var(--line); padding-top: .7rem; }
.source summary { cursor: pointer; color: var(--cyan); font: .8rem ui-monospace, monospace; }
footer { padding: 3rem 0 4rem; color: var(--dim); font-size: .88rem; }
.footer-row { display: flex; justify-content: space-between; gap: 2rem; }
@media (max-width: 900px) { .hero-grid, .game-grid { grid-template-columns: 1fr; } .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .docs-layout { grid-template-columns: 1fr; } .toc { position: static; } }
@media (max-width: 620px) { .wrap { width: min(calc(100% - 1.5rem), var(--max)); } nav { gap: .7rem; font-size: .78rem; } .hero, .page-head { padding: 4.5rem 0 3.5rem; } .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } .section { padding: 4rem 0; } .footer-row { flex-direction: column; gap: .7rem; } .game-stage-toolbar { gap: .55rem; min-height: 3.25rem; padding: .5rem .65rem; } .game-stage-metric { font-size: .63rem; } .game-stage-toolbar .game-button { padding: .4rem .55rem; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }