:root {
  color-scheme: light dark;
}
* { box-sizing: border-box; margin: 0; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: #fff;
  color: #18181b;
  line-height: 1.65;
}
@media (prefers-color-scheme: dark) {
  body { background: #09090b; color: #e4e4e7; }
  .container { --muted: #a1a1aa; --border: #27272a; }
}
.container {
  --muted: #52525b;
  --border: #e4e4e7;
  max-width: 42rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}
a { color: #059669; }
header { border-bottom: 1px solid var(--border); margin-bottom: 2rem; padding-bottom: 1.5rem; }
.logo { font-size: 1.25rem; font-weight: 700; text-decoration: none; color: inherit; display: inline-block; }
.logo span { color: #059669; }
h1 { font-size: 1.5rem; margin-bottom: 1rem; }
h2 { font-size: 1.05rem; margin: 1.75rem 0 0.5rem; }
p, li { color: var(--muted); font-size: 0.95rem; margin-bottom: 0.75rem; }
ul { padding-left: 1.25rem; }
footer { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--border); font-size: 0.8rem; color: var(--muted); }
footer a { color: inherit; text-decoration: underline; text-decoration-color: var(--border); text-underline-offset: 2px; }
footer a:hover { color: #059669; }
nav { margin-top: 0.5rem; font-size: 0.8rem; }
nav a { color: var(--muted); text-decoration: none; margin-right: 1rem; }
nav a:hover { color: #059669; }