:root {
  --bg: #0f1218;
  --surface: #171c25;
  --surface-2: #1f2632;
  --line: #2a3341;
  --text: #e6eaf0;
  --muted: #8b96a8;
  --accent: #4f9cf9;
  --ok: #3fbf7f;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/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; }

.wrap { max-width: 940px; margin: 0 auto; padding: 0 24px; }

header {
  border-bottom: 1px solid var(--line);
  background: rgba(15, 18, 24, .9);
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
}

header .wrap {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 60px;
}

.brand {
  font-weight: 650;
  letter-spacing: -.01em;
  color: var(--text);
  font-size: 16px;
}

.brand span { color: var(--accent); }

nav { display: flex; gap: 20px; margin-left: auto; }
nav a { color: var(--muted); font-size: 14px; }
nav a:hover { color: var(--text); text-decoration: none; }

h1 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -.02em;
  margin: 56px 0 14px;
}

h2 {
  font-size: 20px;
  letter-spacing: -.01em;
  margin: 40px 0 12px;
}

.lead { color: var(--muted); font-size: 17px; max-width: 62ch; margin: 0 0 28px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 32px 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 20px;
}

.card h3 { margin: 0 0 6px; font-size: 15px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

pre {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
}

code { font-family: var(--mono); font-size: .92em; }

table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; font-size: 13px; }
td.mono { font-family: var(--mono); font-size: 13px; }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); margin-right: 7px; }

footer {
  border-top: 1px solid var(--line);
  margin-top: 72px;
  padding: 24px 0 40px;
  color: var(--muted);
  font-size: 13px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff; --surface: #f7f8fa; --surface-2: #f2f4f7;
    --line: #e3e7ed; --text: #12161d; --muted: #5d6878; --accent: #1a6fd4;
  }
  header { background: rgba(255, 255, 255, .9); }
}