:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #14171c;
  --muted: #5b6472;
  --line: #e2e6ec;
  --accent: #0d7c6f;
  --accent-ink: #ffffff;
  --code-bg: #eef1f5;
  --hero-bg: linear-gradient(180deg, #e9f5f2 0%, var(--bg) 100%);
}

* { 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 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.875em;
}
code { background: var(--code-bg); padding: 0.1em 0.35em; border-radius: 4px; white-space: nowrap; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

/* Header */
.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.top-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 56px; }
.brand { color: var(--text); font-weight: 700; font-size: 1.15rem; letter-spacing: 0.01em; display: inline-flex; align-items: center; }
.brand:hover { text-decoration: none; }
.mark {
  display: inline-block; background: var(--accent); color: var(--accent-ink);
  border-radius: 6px; padding: 0 6px; margin-right: 2px; font-weight: 800;
}
nav { display: flex; gap: 18px; overflow-x: auto; scrollbar-width: none; }
nav::-webkit-scrollbar { display: none; }
nav a { color: var(--muted); font-size: 0.93rem; white-space: nowrap; }
nav a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero { background: var(--hero-bg); padding: 64px 0 48px; border-bottom: 1px solid var(--line); }
.eyebrow { color: var(--muted); font-size: 0.9rem; margin: 0 0 8px; }
h1 { font-size: clamp(2.6rem, 7vw, 4rem); line-height: 1.05; margin: 0 0 16px; letter-spacing: -0.02em; }
.lead { font-size: 1.15rem; max-width: 640px; margin: 0 0 28px; color: var(--text); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; }
.btn {
  display: inline-block; padding: 11px 20px; border-radius: 8px; font-weight: 600;
  border: 1px solid var(--line); background: var(--surface); color: var(--text);
}
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 0; max-width: 640px; }
.stats div { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
.stats dt { color: var(--muted); font-size: 0.82rem; }
.stats dd { margin: 2px 0 0; font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stats dd span { font-size: 0.9rem; font-weight: 600; color: var(--muted); }

/* Sections */
main section { padding: 48px 0 8px; }
h2 { font-size: 1.6rem; margin: 0 0 16px; letter-spacing: -0.01em; }
h3 { font-size: 1.1rem; margin: 28px 0 10px; }
.note { color: var(--muted); font-size: 0.93rem; margin: 10px 0 0; max-width: 760px; }
.gpus { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.gpus li { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; }
.gpus strong { margin-right: 8px; }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 0.93rem; }
th, td { text-align: left; padding: 9px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.85rem; white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
td:first-child { white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr.group td { background: var(--code-bg); font-weight: 600; font-size: 0.85rem; }

/* Code blocks */
pre {
  position: relative; background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 16px; overflow-x: auto; line-height: 1.55; margin: 0;
}
pre code { background: none; padding: 0; white-space: pre; font-size: 1em; }
pre + .table-wrap { margin-top: 16px; }
.copy {
  position: absolute; top: 8px; right: 8px; font: 600 0.75rem system-ui, sans-serif;
  padding: 4px 9px; border-radius: 6px; border: 1px solid var(--line); background: var(--surface);
  color: var(--muted); cursor: pointer;
}
.copy:hover { color: var(--text); border-color: var(--accent); }

/* Footer */
footer { margin-top: 56px; padding: 24px 0 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }
.foot-row { display: flex; flex-wrap: wrap; gap: 18px; margin-bottom: 8px; }
.fine { font-size: 0.8rem; max-width: 760px; margin: 0; }

@media (max-width: 640px) {
  .hero { padding: 40px 0 32px; }
  .stats { grid-template-columns: 1fr; }
  .stats div { display: flex; justify-content: space-between; align-items: baseline; }
  nav { gap: 14px; }
  nav a:nth-child(2), nav a:nth-child(n+4) { display: none; }
}