:root {
  --text: #1f2933;
  --muted: #52606d;
  --accent: #0f766e;
  --bg: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e4e7eb;
    --muted: #9aa5b1;
    --accent: #5eead4;
    --bg: #111827;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

h1 { font-size: 1.8rem; line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; }
a { color: var(--accent); }
.brand { margin: 0 0 24px; font-weight: 600; }
.brand a { text-decoration: none; }
.meta { color: var(--muted); margin-top: 0; }
li { margin: 6px 0; }