/* auto-model-router site. Hand-authored, dependency-free. */
:root {
  --bg: #0d1117;
  --bg-alt: #161b22;
  --border: #30363d;
  --fg: #e6edf3;
  --fg-dim: #9198a1;
  --accent: #4ea1ff;
  --accent-dim: #1f6feb;
  --good: #3fb950;
  --code-bg: #161b22;
  --max: 900px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, kbd {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
}
code { background: var(--code-bg); padding: 0.15em 0.4em; border-radius: 4px; border: 1px solid var(--border); }
pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.15rem;
  overflow-x: auto;
  line-height: 1.5;
}
pre code { background: none; border: none; padding: 0; }

header.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(13,17,23,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
header.nav .inner {
  max-width: var(--max); margin: 0 auto; padding: 0.75rem 1.25rem;
  display: flex; align-items: center; gap: 1.5rem;
}
header.nav .brand { font-weight: 700; color: var(--fg); letter-spacing: -0.02em; }
header.nav nav { display: flex; gap: 1.15rem; flex-wrap: wrap; }
header.nav nav a { color: var(--fg-dim); font-size: 0.94rem; }
header.nav nav a.active, header.nav nav a:hover { color: var(--fg); text-decoration: none; }
header.nav .spacer { flex: 1; }

main { max-width: var(--max); margin: 0 auto; padding: 2.5rem 1.25rem 4rem; }

.hero { text-align: center; padding: 3rem 0 2rem; }
.hero h1 { font-size: 2.6rem; margin: 0 0 0.5rem; letter-spacing: -0.03em; }
.hero p.tagline { font-size: 1.25rem; color: var(--fg-dim); margin: 0 auto 1.75rem; max-width: 40rem; }
.hero .cta { display: inline-flex; gap: 0.75rem; flex-wrap: wrap; justify-content: center; }
.btn {
  display: inline-block; padding: 0.6rem 1.25rem; border-radius: 8px;
  font-weight: 600; border: 1px solid var(--border);
}
.btn.primary { background: var(--accent-dim); border-color: var(--accent-dim); color: #fff; }
.btn.primary:hover { background: var(--accent); text-decoration: none; }
.btn.ghost { color: var(--fg); }
.btn.ghost:hover { border-color: var(--fg-dim); text-decoration: none; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; margin: 2.5rem 0; }
.stat { background: var(--bg-alt); border: 1px solid var(--border); border-radius: 10px; padding: 1.25rem; text-align: center; }
.stat .n { font-size: 2rem; font-weight: 700; color: var(--good); letter-spacing: -0.02em; }
.stat .l { color: var(--fg-dim); font-size: 0.9rem; margin-top: 0.25rem; }

h2 { font-size: 1.6rem; margin: 2.75rem 0 1rem; letter-spacing: -0.02em; padding-top: 0.5rem; }
h3 { font-size: 1.2rem; margin: 2rem 0 0.75rem; }
h2:first-child { margin-top: 0; }
p, ul, ol { margin: 0 0 1rem; }
ul, ol { padding-left: 1.4rem; }
li { margin: 0.3rem 0; }

table { width: 100%; border-collapse: collapse; margin: 1rem 0 1.5rem; font-size: 0.95rem; }
th, td { text-align: left; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--border); }
th { color: var(--fg-dim); font-weight: 600; }
td.win { color: var(--good); font-weight: 600; }
tbody tr:hover { background: var(--bg-alt); }
table caption { text-align: left; color: var(--fg-dim); font-size: 0.9rem; margin-bottom: 0.6rem; caption-side: bottom; }

.card { background: var(--bg-alt); border: 1px solid var(--border); border-radius: 10px; padding: 1.25rem 1.4rem; margin: 1rem 0; }
.card h3 { margin-top: 0; }
.note { color: var(--fg-dim); font-size: 0.95rem; }
.pill { display: inline-block; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 999px; padding: 0.15rem 0.7rem; font-size: 0.8rem; color: var(--fg-dim); }

dl.knobs { margin: 0; }
dl.knobs dt { font-family: ui-monospace, monospace; color: var(--accent); margin-top: 1.1rem; font-size: 0.95rem; }
dl.knobs dd { margin: 0.25rem 0 0; color: var(--fg); }
dl.knobs dd .default { color: var(--fg-dim); font-size: 0.88rem; }

footer { border-top: 1px solid var(--border); color: var(--fg-dim); font-size: 0.9rem; }
footer .inner { max-width: var(--max); margin: 0 auto; padding: 2rem 1.25rem; display: flex; gap: 1rem; flex-wrap: wrap; }
footer .spacer { flex: 1; }

@media (max-width: 600px) {
  .hero h1 { font-size: 2rem; }
  header.nav .inner { gap: 1rem; }
  main { padding-top: 1.5rem; }
}