/* Shared styles for the public About / Privacy / Terms pages (no sign-in needed). */
:root { --bg: #f6f6f8; --card: #ffffff; --text: #1a1a2e; --muted: #5b5b6e; --accent: #3b82f6; --border: #e3e3ea; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1117; --card: #171a22; --text: #f1f1f5; --muted: #a0a3b1; --accent: #6ea8fe; --border: #2a2e3a; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
header .mark { width: 28px; height: 28px; vertical-align: middle; }
header a { color: var(--text); text-decoration: none; font-weight: 800; font-size: 22px; }
nav { margin-left: auto; display: flex; gap: 16px; font-size: 15px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--accent); }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 28px; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 6px; }
h2 { font-size: 20px; margin: 28px 0 8px; }
p, li { color: var(--text); }
.muted { color: var(--muted); font-size: 15px; }
a { color: var(--accent); }
ul { padding-left: 22px; }
.button { display: inline-block; margin-top: 12px; padding: 12px 20px; border-radius: 12px; background: var(--accent); color: #fff; text-decoration: none; font-weight: 700; }