:root { color-scheme: light dark; --navy: #0f2a4a; --accent: #a6192e; --text: #1b2331; --muted: #5b6676; --bg: #f4f6fa; --card: #ffffff; --line: #dae0eb; }
@media (prefers-color-scheme: dark) { :root { --navy: #9eb8dc; --text: #e8edf5; --muted: #a3adbd; --bg: #0b1220; --card: #171e2e; --line: #333d52; } }
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
header { padding: 40px 20px 8px; max-width: 760px; margin: 0 auto; }
header .brand { font-size: 14px; font-weight: 600; color: var(--navy); letter-spacing: 0.02em; text-decoration: none; }
main { max-width: 760px; margin: 0 auto; padding: 8px 20px 64px; }
h1 { font-size: 32px; line-height: 1.2; margin: 8px 0 12px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
p, li { font-size: 17px; }
.lead { color: var(--muted); font-size: 19px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 20px 22px; margin: 20px 0; }
a { color: var(--navy); }
.cta { display: inline-block; background: var(--accent); color: #fff; text-decoration: none; padding: 12px 20px; border-radius: 999px; font-weight: 600; }
footer { max-width: 760px; margin: 0 auto; padding: 24px 20px 48px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }
footer a { margin-right: 16px; }
small { color: var(--muted); }