:root { color-scheme: light dark; --ink: #111; --muted: #666; --bg: #fff; --line: #e6e6e6; }
@media (prefers-color-scheme: dark) { :root { --ink: #f2f2f2; --muted: #a0a0a0; --bg: #000; --line: #2a2a2a; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 ui-rounded, -apple-system, "SF Pro Rounded", system-ui, "Noto Sans", sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 40px 20px 80px; }
h1 { font-size: 34px; line-height: 1.15; margin: 0 0 6px; }
h2 { font-size: 20px; margin: 32px 0 6px; }
.muted { color: var(--muted); font-size: 15px; }
header { display: flex; flex-wrap: wrap; gap: 12px 18px; align-items: center; margin-bottom: 36px; font-weight: 600; }
header .brand { font-weight: 800; margin-inline-end: auto; text-decoration: none; }
select { font: inherit; font-size: 15px; padding: 4px 8px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); }
a { color: inherit; }
hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }
.hero { display: block; width: 100%; height: auto; border-radius: 24px; margin: 8px 0 24px; }
.tagline { font-size: 19px; }
@media (prefers-color-scheme: dark) { .hero { border-radius: 24px; } }