:root { color-scheme: light dark; --accent: #5A5BD1; --muted: #6e6e76; --card: rgba(127, 127, 140, 0.1); }
@media (prefers-color-scheme: dark) { :root { --accent: #8C88F4; --muted: #a1a1aa; } }
* { box-sizing: border-box; }
body { margin: 0; font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif; background: Canvas; color: CanvasText; }
main { max-width: 720px; margin: 0 auto; padding: 48px 20px 72px; }
header { text-align: center; margin-bottom: 40px; }
header img { width: 96px; height: 96px; border-radius: 22px; }
h1 { font-size: 40px; line-height: 1.15; margin: 16px 0 8px; }
h2 { font-size: 24px; margin: 40px 0 12px; }
h3 { font-size: 18px; margin: 24px 0 6px; }
p, li { color: CanvasText; }
.lead { color: var(--muted); font-size: 20px; margin: 0; }
.muted { color: var(--muted); }
a { color: var(--accent); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 24px 0; }
.card { background: var(--card); border-radius: 16px; padding: 18px; }
.card h3 { margin-top: 0; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
nav { text-align: center; margin: 32px 0 0; font-size: 15px; }
nav a { margin: 0 10px; }
footer { text-align: center; color: var(--muted); font-size: 14px; margin-top: 48px; }