:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --text: #e7ecf3;
  --muted: #9aa8bc;
  --accent: #3b82f6;
  --border: #2a3544;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--accent);
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.brand {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  font-size: 1.1rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.site-nav a {
  text-decoration: none;
  font-size: 0.92rem;
}

.site-main {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.site-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

.hero h1 {
  margin-top: 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.card h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.prose h1,
.prose h2,
.prose h3 {
  margin-top: 1.5em;
}

.prose pre {
  overflow-x: auto;
  background: #0b1020;
  padding: 12px;
  border-radius: 8px;
}

.prose code {
  background: #0b1020;
  padding: 2px 6px;
  border-radius: 4px;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
}

.prose th,
.prose td {
  border: 1px solid var(--border);
  padding: 8px 10px;
}

.prose blockquote {
  border-left: 4px solid var(--accent);
  margin-left: 0;
  padding-left: 16px;
  color: var(--muted);
}