:root { --bg: #ffffff; --text: #3c3c3c; --muted: #6f7480; --line: #e5e5e5; --accent: #1899d6; }
@media (prefers-color-scheme: dark) { :root { --bg: #131f24; --text: #f1f7fb; --muted: #9aa8b2; --line: #37464f; --accent: #4fc3f7; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 ui-rounded, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 48px 20px 64px; }
h1 { font-size: 36px; line-height: 1.15; margin: 0 0 8px; font-weight: 900; }
h2 { font-size: 20px; margin: 32px 0 6px; font-weight: 800; }
p, li { color: var(--text); }
.lead { color: var(--muted); font-size: 19px; margin-top: 0; }
.tiles { display: flex; gap: 10px; margin: 0 0 24px; font-size: 30px; }
.tiles span { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; border-bottom: 5px solid rgba(0,0,0,.18); }
a { color: var(--accent); }
footer { margin-top: 48px; padding-top: 16px; border-top: 2px solid var(--line); color: var(--muted); font-size: 15px; }
footer a { margin-right: 16px; }