/* Trang pháp lý tĩnh (privacy.html, terms.html): Google OAuth cần URL công khai cho hai trang này. */
:root {
  --bg: #0e1118;
  --text: rgba(255, 255, 255, 0.82);
  --muted: rgba(255, 255, 255, 0.5);
  --heading: #fff;
  --accent: #5b93e8;
  --rule: rgba(255, 255, 255, 0.1);
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafaf8;
    --text: #2a2d33;
    --muted: #6b7079;
    --heading: #111318;
    --accent: #2f6fd1;
    --rule: #e3e4e8;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 32px 16px 64px; }
.brand { color: var(--accent); font-weight: 700; text-decoration: none; }
h1 { color: var(--heading); font-size: 28px; line-height: 1.25; margin: 24px 0 4px; }
h2 { color: var(--heading); font-size: 18px; margin: 32px 0 8px; }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 24px; }
ul { padding-left: 20px; }
li { margin: 6px 0; }
a { color: var(--accent); }
code { font-size: 14px; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--rule); color: var(--muted); font-size: 14px; }