:root { --ink: #17202B; --muted: #515D6F; --accent: #01408E; --bg: #F4F6FA; --surface: #FFFFFF; --line: #D5DDE8; }
@media (prefers-color-scheme: dark) {
  :root { --ink: #E4E8EE; --muted: #A3ADBB; --accent: #86ACE6; --bg: #0F1318; --surface: #171C23; --line: #2B333E; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 720px; margin: 32px auto; padding: 28px 24px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; }
@media (max-width: 760px) { main { margin: 0; border-radius: 0; border: 0; padding: 24px 16px; } }
.brand { margin: 0 0 4px; font-size: 13px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--accent); }
h1 { margin: 0 0 4px; font-size: 26px; line-height: 1.25; }
h2 { margin: 24px 0 6px; font-size: 18px; }
.meta { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
a { color: var(--accent); }
ul { padding-left: 20px; }