:root { --bg: #f4f7f2; --card: #fff; --text: #0b1a12; --muted: #4f6157; --tint: #0b6b3f; --lime: #d7f75b; }
@media (prefers-color-scheme: dark) { :root { --bg: #06100b; --card: #0f1f17; --text: #fff; --muted: #a9bdb1; --tint: #4ade80; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
header img { width: 56px; height: 56px; border-radius: 13px; }
h1 { font-size: 30px; margin: 0; }
h2 { font-size: 21px; margin-top: 32px; }
.card { background: var(--card); border-radius: 16px; padding: 20px; margin: 16px 0; }
a { color: var(--tint); }
.muted { color: var(--muted); font-size: 15px; }
nav { margin-top: 40px; display: flex; gap: 18px; }