*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
:root {
  color-scheme: dark;
  --ink: oklch(16% 0.018 62);
  --charcoal: oklch(14% 0.018 62);
  --charcoal-2: oklch(19% 0.02 62);
  --charcoal-3: oklch(24% 0.022 62);
  --paper: oklch(92% 0.034 76);
  --paper-2: oklch(86% 0.047 75);
  --paper-3: oklch(78% 0.055 72);
  --line-dark: oklch(31% 0.026 62);
  --line-paper: oklch(73% 0.052 72);
  --text: oklch(91% 0.018 74);
  --muted: oklch(67% 0.028 70);
  --muted-paper: oklch(43% 0.035 66);
  --ember: oklch(56% 0.115 48);
  --ember-bright: oklch(70% 0.13 53);
  --sage: oklch(59% 0.052 133);
  --plum: oklch(31% 0.045 330);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Spline Sans", ui-sans-serif, system-ui, sans-serif;
  --max: 1280px;
  --gutter: clamp(20px, 4vw, 56px);
  --ease: cubic-bezier(.16, 1, .3, 1);
}
html { scroll-behavior: smooth; background: var(--charcoal); }
body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% -6%, color-mix(in oklch, var(--ember) 18%, transparent), transparent 28rem),
    radial-gradient(circle at 88% 16%, color-mix(in oklch, var(--sage) 12%, transparent), transparent 25rem),
    linear-gradient(180deg, var(--charcoal) 0%, oklch(12% 0.016 62) 100%);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.grain { position: fixed; inset: 0; pointer-events: none; opacity: .055; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E"); mix-blend-mode: soft-light; z-index: 20; }
nav { position: fixed; top: 0; left: 0; right: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px var(--gutter); background: color-mix(in oklch, var(--charcoal) 84%, transparent); border-bottom: 1px solid color-mix(in oklch, var(--line-dark) 84%, transparent); backdrop-filter: blur(18px); }
.nav-logo { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 650; letter-spacing: .02em; white-space: nowrap; }
.nav-mark { width: 10px; height: 10px; border-radius: 50%; background: var(--ember-bright); box-shadow: 0 0 0 5px color-mix(in oklch, var(--ember-bright) 12%, transparent); }
.nav-links { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: clamp(14px, 2vw, 28px); }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 13px; transition: color .2s var(--ease); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-links .nav-cta { color: var(--paper); }
.hero { width: min(var(--max), calc(100vw - var(--gutter) * 2)); margin-inline: auto; padding: clamp(130px, 16vw, 188px) 0 clamp(58px, 8vw, 96px); display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .44fr); gap: clamp(28px, 5vw, 70px); align-items: end; }
.kicker { color: var(--ember-bright); font-size: 12px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 550; line-height: 1; letter-spacing: -.04em; }
h1 { margin-top: 18px; font-size: clamp(54px, 9vw, 112px); max-width: 900px; }
.hero p { margin-top: 24px; max-width: 760px; color: var(--muted); font-size: clamp(19px, 2.2vw, 28px); line-height: 1.34; letter-spacing: -.02em; }
.source-card { color: var(--ink); background: var(--paper); border: 1px solid var(--line-paper); padding: clamp(22px, 3vw, 34px); box-shadow: 0 28px 90px color-mix(in oklch, black 22%, transparent); }
.source-card strong { display: block; color: var(--plum); font-family: var(--font-display); font-size: clamp(28px, 3vw, 42px); line-height: 1; letter-spacing: -.04em; }
.source-card p { margin-top: 14px; color: var(--muted-paper); font-size: 15px; line-height: 1.48; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 10px 17px; border: 1px solid color-mix(in oklch, currentColor 28%, transparent); border-radius: 999px; color: var(--paper); text-decoration: none; font-weight: 700; font-size: 13px; transition: transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease); }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--paper); border-color: var(--paper); color: var(--ink); }
.source-card .btn { color: var(--ink); border-color: var(--line-paper); }
.source-card .btn-primary { color: var(--paper); background: var(--ink); border-color: var(--ink); }
.layout { width: min(var(--max), calc(100vw - var(--gutter) * 2)); margin-inline: auto; display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: clamp(28px, 5vw, 70px); align-items: start; padding-bottom: clamp(80px, 10vw, 130px); }
.sidebar { position: sticky; top: 86px; border: 1px solid var(--line-dark); background: color-mix(in oklch, var(--charcoal-2) 78%, transparent); max-height: calc(100svh - 116px); overflow: auto; padding: 18px; }
.sidebar h2 { font-family: var(--font-body); font-size: 12px; line-height: 1.2; letter-spacing: .16em; text-transform: uppercase; color: var(--ember-bright); }
.side-group { margin-top: 18px; }
.side-group strong { display: block; color: var(--paper); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; }
.side-group a { display: block; margin-top: 8px; color: var(--muted); text-decoration: none; font-size: 13px; line-height: 1.3; }
.side-group a:hover, .side-group a[aria-current="page"] { color: var(--text); }
.content { min-width: 0; color: var(--ink); background: var(--paper); border: 1px solid var(--line-paper); padding: clamp(28px, 5vw, 66px); }
.content h1, .content h2, .content h3 { color: var(--plum); }
.content h1 { font-size: clamp(42px, 6vw, 72px); margin-bottom: 24px; }
.content h2 { font-size: clamp(31px, 4vw, 50px); margin: 1.35em 0 .45em; }
.content h3 { font-size: clamp(24px, 3vw, 34px); margin: 1.2em 0 .35em; }
.content h4 { margin: 1.1em 0 .25em; font-size: 17px; color: var(--ink); }
.content p { margin: .8em 0; color: var(--muted-paper); }
.content a { color: var(--plum); text-decoration-color: color-mix(in oklch, var(--plum) 34%, transparent); text-underline-offset: 3px; }
.content ul, .content ol { margin: .8em 0 1em 1.25em; padding-left: 1em; color: var(--muted-paper); }
.content li { margin: .38em 0; }
.content strong { color: var(--ink); }
.content code { background: color-mix(in oklch, var(--ink) 9%, transparent); color: var(--ink); padding: .12em .38em; border-radius: 5px; font-size: .92em; }
.content pre { margin: 1.1em 0; padding: 18px; border: 1px solid var(--line-paper); background: color-mix(in oklch, var(--ink) 95%, transparent); color: var(--paper); overflow-x: auto; }
.content pre code { background: transparent; color: inherit; padding: 0; border-radius: 0; }
.content blockquote { margin: 1.1em 0; padding: .2em 0 .2em 1.1em; border-left: 4px solid var(--ember); color: var(--ink); }
.content table { width: 100%; border-collapse: collapse; margin: 1.2em 0; font-size: 14px; }
.content th, .content td { vertical-align: top; border: 1px solid var(--line-paper); padding: 10px 12px; }
.content th { background: color-mix(in oklch, var(--plum) 10%, transparent); color: var(--ink); text-align: left; }
.content hr { border: 0; border-top: 1px solid var(--line-paper); margin: 2em 0; }
.content .source-path { color: var(--ember); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.content .page-nav { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-top: 1px solid var(--line-paper); margin-top: 42px; padding-top: 20px; }
.library-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line-paper); border: 1px solid var(--line-paper); margin-top: 24px; }
.library-card { background: var(--paper); padding: 20px; text-decoration: none; display: block; min-height: 150px; }
.library-card strong { display: block; color: var(--ink); font-size: 18px; }
.library-card span { display: block; margin-top: 8px; color: var(--muted-paper); font-size: 14px; }
.library-card em { display: block; margin-bottom: 10px; color: var(--ember); font-style: normal; font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
footer { width: min(var(--max), calc(100vw - var(--gutter) * 2)); margin: 0 auto; padding: 32px 0 44px; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line-dark); color: var(--muted); font-size: 13px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--text); }
@media (max-width: 980px) { .hero, .layout { grid-template-columns: 1fr; } .sidebar { position: static; max-height: none; } .library-grid { grid-template-columns: 1fr; } }
@media (max-width: 700px) { nav { align-items: flex-start; flex-direction: column; gap: 10px; padding: 14px 20px; } .nav-links { justify-content: flex-start; gap: 8px 14px; } .nav-links a { font-size: 12px; } .hero, .layout, footer { width: calc(100vw - 40px); } h1 { font-size: clamp(48px, 16vw, 78px); } footer { flex-direction: column; } .content { padding: 24px 20px; } }