:root {
  --bg: #fbfbfa;
  --surface: #ffffff;
  --text: #16181d;
  --muted: #5b6270;
  --line: #e6e7ea;
  --accent: #3a5bff;
  --accent-soft: #eef1ff;
  --radius: 14px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1014;
    --surface: #161920;
    --text: #eceef2;
    --muted: #9aa1ad;
    --line: #262a33;
    --accent: #7d93ff;
    --accent-soft: #1b2140;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* Header */
.top {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo { font-weight: 700; font-size: 18px; letter-spacing: -0.02em; text-decoration: none; }
.logo span { color: var(--accent); }
.nav { display: flex; gap: 22px; font-size: 14px; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover { color: var(--text); }

/* Hero */
.hero { padding: 96px 0 72px; }
.hero h1 {
  font-size: clamp(36px, 6vw, 60px); line-height: 1.05; letter-spacing: -0.035em;
  margin: 0 0 20px; max-width: 14ch;
}
.hero p { font-size: 19px; color: var(--muted); max-width: 52ch; margin: 0 0 32px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; font-size: 15px; font-weight: 600;
  text-decoration: none; border: 1px solid var(--line); background: var(--surface);
  cursor: pointer; color: var(--text);
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn + .btn { margin-left: 10px; }

/* Sections */
section { padding: 56px 0; border-top: 1px solid var(--line); }
section h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin: 0 0 24px; font-weight: 600; }

.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

.card {
  display: block; padding: 22px; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); text-decoration: none; transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card h3 { margin: 0 0 6px; font-size: 18px; letter-spacing: -0.01em; }
.card p { margin: 0 0 14px; color: var(--muted); font-size: 15px; }
.card .host { font-family: var(--mono); font-size: 12px; color: var(--accent); }

.split { display: grid; gap: 32px; grid-template-columns: 1fr 1fr; align-items: center; }
.split p { color: var(--muted); }
pre.code {
  margin: 0; padding: 18px; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); font: 13px/1.6 var(--mono); overflow-x: auto; white-space: pre;
}

footer { padding: 32px 0 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

@media (max-width: 720px) {
  .hero { padding: 56px 0 48px; }
  .split { grid-template-columns: 1fr; }
  .nav { gap: 14px; }
}