:root { --bg: #F6F6F3; --surface: #FFFFFF; --text: #1B1C1E; --muted: #5F6166; --border: #E1E1DB; --accent: #1F7A55; --accent-soft: #E3F1EA; color-scheme: light dark; }
@media (prefers-color-scheme: dark) { :root { --bg: #111214; --surface: #1B1C1F; --text: #F1F1EF; --muted: #A3A5AA; --border: #2E3035; --accent: #3DBB82; --accent-soft: #183327; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
main, header, footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 20px; padding-bottom: 8px; }
header a.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; letter-spacing: .02em; }
header img { width: 36px; height: 36px; }
nav a { color: var(--accent); margin-left: 14px; font-size: 15px; }
h1 { font-size: 30px; line-height: 1.2; margin: 24px 0 8px; }
h2 { font-size: 21px; margin-top: 32px; }
a { color: var(--accent); }
.muted { color: var(--muted); font-size: 15px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 16px 20px; margin: 16px 0; }
.hero { text-align: center; padding: 32px 0 8px; }
.hero img { width: 112px; height: 112px; }
ul { padding-left: 22px; }
footer { padding-top: 24px; padding-bottom: 40px; color: var(--muted); font-size: 14px; }