:root {
  --bg: #0f172a;
  --panel: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --accent: #2563eb;
  --border: #e2e8f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: #f8fafc;
  line-height: 1.6;
}

.container {
  width: min(960px, 92%);
  margin-inline: auto;
}

.site-header {
  background: var(--bg);
  color: #fff;
  padding: 1rem 0;
}

.site-header .container {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.logo {
  font-weight: 700;
  font-size: 1.1rem;
}

.tag {
  color: #94a3b8;
  font-size: 0.9rem;
}

h1 {
  font-size: 2rem;
  margin: 2rem 0 0.5rem;
}

.lead {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 60ch;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
}

.card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 0.6rem 1rem;
  border-radius: 8px;
}

code {
  background: #eef2ff;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.9em;
}

.site-footer {
  margin-top: 3rem;
  padding: 1.5rem 0;
  color: var(--muted);
  border-top: 1px solid var(--border);
}