:root {
  --bg: #11111b;
  --base: #1e1e2e;
  --surface: #262637;
  --line: #313244;
  --text: #cdd6f4;
  --sub: #a6adc8;
  --dim: #7f849c;
  --blue: #89b4fa;
  --teal: #94e2d5;
  --green: #a6e3a1;
  --mauve: #cba6f7;
  --peach: #fab387;
  --red: #f38ba8;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
code, kbd, pre { font-family: var(--mono); }
code { font-size: .88em; background: var(--surface); padding: .1em .35em; border-radius: 4px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(17, 17, 27, .85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.logo { font: 700 20px var(--mono); color: var(--text); }
.logo:hover { text-decoration: none; }
.prompt { color: var(--blue); }
.nav nav { display: flex; gap: 22px; }
.nav nav a { color: var(--sub); font-size: 15px; }
.nav nav a:hover { color: var(--text); text-decoration: none; }
.nav .gh { color: var(--text); border: 1px solid var(--line); padding: 4px 12px; border-radius: 8px; }

/* hero */
.hero { padding: 72px 0 56px; background: radial-gradient(900px 420px at 50% -80px, rgba(137, 180, 250, .16), transparent 70%); }
.hero .wrap { text-align: center; }
.pill { display: inline-block; font-size: 13px; color: var(--teal); border: 1px solid rgba(148, 226, 213, .35); padding: 3px 12px; border-radius: 999px; margin-bottom: 20px; }
h1 { font-size: clamp(34px, 6vw, 60px); line-height: 1.08; letter-spacing: -.025em; margin: 0 0 20px; }
.accent { background: linear-gradient(90deg, var(--blue), var(--teal)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { max-width: 680px; margin: 0 auto 32px; color: var(--sub); font-size: 18px; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; }
.cmd { display: flex; align-items: center; gap: 10px; background: var(--base); border: 1px solid var(--line); border-radius: 10px; padding: 6px 6px 6px 16px; }
.cmd code { background: none; padding: 0; font-size: 15px; }
.dim { color: var(--dim); }
button, .btn { font: 600 14px var(--sans); border-radius: 8px; border: 0; cursor: pointer; }
button { background: var(--surface); color: var(--text); padding: 7px 12px; }
button:hover { background: var(--line); }
button.done { color: var(--green); }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; background: var(--blue); color: var(--base); padding: 0 20px; }
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn.small { min-height: 0; padding: 7px 12px; }
.engines { display: flex; flex-wrap: wrap; gap: 8px 22px; justify-content: center; list-style: none; padding: 0; margin: 0 0 48px; color: var(--dim); font: 14px var(--mono); }
.term { max-width: 960px; margin: 0 auto; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--base); box-shadow: 0 30px 80px rgba(0, 0, 0, .5); }
.term video { display: block; width: 100%; height: auto; }

/* sections */
.section { padding: 80px 0; border-top: 1px solid var(--line); }
.section.alt { background: #151520; }
h2 { font-size: clamp(26px, 4vw, 36px); letter-spacing: -.02em; line-height: 1.2; margin: 0 0 10px; }
.sub { color: var(--sub); margin: 0 0 36px; font-size: 17px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid article { background: var(--base); border: 1px solid var(--line); border-radius: 12px; padding: 22px; }
.grid h3 { margin: 0 0 6px; font-size: 17px; }
.grid p { margin: 0; color: var(--sub); font-size: 15px; }
.split { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; }
.split p { color: var(--sub); font-size: 17px; }
.tag { display: inline-block; font: 600 12px var(--mono); color: var(--base); background: var(--green); padding: 2px 8px; border-radius: 5px; margin-bottom: 12px; text-transform: uppercase; letter-spacing: .05em; }
.more { font-weight: 600; }
pre.code { margin: 0; background: var(--base); border: 1px solid var(--line); border-radius: 12px; padding: 20px 22px; font-size: 13.5px; line-height: 1.6; overflow-x: auto; color: var(--text); }
.code .k { color: var(--mauve); }
.code .p { color: var(--peach); }
.code .c { color: var(--dim); }

/* install */
.install { display: grid; gap: 10px; margin-bottom: 40px; }
.install .row { display: grid; grid-template-columns: 140px 1fr auto; align-items: center; gap: 16px; background: var(--base); border: 1px solid var(--line); border-radius: 10px; padding: 10px 10px 10px 18px; }
.install .row > span { color: var(--sub); font-size: 14px; }
.install code { background: none; padding: 0; font-size: 14px; overflow-x: auto; white-space: nowrap; }
.keys-title { margin: 0 0 14px; }
table.keys { width: 100%; border-collapse: collapse; margin-top: 24px; font-size: 15px; }
.keys td { padding: 10px 12px; border-bottom: 1px solid var(--line); color: var(--sub); }
kbd { font-size: 12.5px; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: 1px 6px; white-space: nowrap; }

/* footer */
.foot { border-top: 1px solid var(--line); padding: 28px 0; color: var(--dim); font-size: 14px; }
.foot-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* docs */
.docs { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; padding-top: 40px; padding-bottom: 80px; }
.toc { position: sticky; top: 84px; align-self: start; max-height: calc(100vh - 100px); overflow-y: auto; font-size: 14px; }
.toc summary { color: var(--dim); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 10px; cursor: pointer; list-style: none; }
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li { margin: 0; }
.toc a { display: block; color: var(--sub); padding: 4px 10px; border-left: 2px solid var(--line); }
.toc a:hover { color: var(--text); border-color: var(--blue); text-decoration: none; }
.toc .l3 a { padding-left: 24px; font-size: 13px; }
.prose { max-width: 820px; }
.prose h1 { font-size: 40px; margin-bottom: 8px; }
.prose h2 { margin-top: 56px; padding-top: 8px; font-size: 28px; }
.prose h3 { margin-top: 36px; font-size: 20px; }
.prose p, .prose li { color: #bac2de; }
.prose pre { background: var(--base) !important; border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; overflow-x: auto; font-size: 13.5px; line-height: 1.55; }
.prose pre code { background: none; padding: 0; font-size: inherit; }
.prose table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14.5px; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { color: var(--text); background: var(--base); }
.prose td { color: #bac2de; }
.prose blockquote { margin: 18px 0; padding: 4px 18px; border-left: 3px solid var(--blue); color: var(--sub); }
.edit { margin-top: 56px; font-size: 14px; }

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 24px; }
  .docs { grid-template-columns: minmax(0, 1fr); gap: 16px; padding-top: 20px; }
  .toc { position: static; max-height: none; background: var(--base); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
  .toc details:not([open]) summary { margin: 0; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .nav nav { gap: 14px; }
  .nav nav a:not(.gh):nth-child(1), .nav nav a:not(.gh):nth-child(2) { display: none; }
  .hero { padding: 48px 0 40px; }
  .lead { font-size: 16px; }
  .cmd code { font-size: 13px; }
  .grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .install .row { grid-template-columns: 1fr auto; }
  .install .row > span { grid-column: 1 / -1; }
  .keys td { display: block; border: 0; padding: 4px 0; }
  .keys tr { display: block; padding: 10px 0; border-bottom: 1px solid var(--line); }
  }