:root { color-scheme: light dark; --green: #138a3c; --text: #0d1a12; --muted: #4a5a50; --bg: #f7faf8; --card: #ffffff; }
@media (prefers-color-scheme: dark) { :root { --green: #33c759; --text: #eef3ef; --muted: #a7b5ac; --bg: #0b0f0d; --card: #141a17; } }
* { box-sizing: border-box; }
body { margin: 0; font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif; color: var(--text); background: var(--bg); }
main { max-width: 760px; margin: 0 auto; padding: 56px 24px 80px; }
header { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; }
header img { width: 64px; height: 64px; }
header a { color: inherit; text-decoration: none; font-weight: 700; font-size: 22px; }
h1 { font-size: 40px; line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.5px; }
h2 { font-size: 22px; margin: 36px 0 8px; }
p, li { color: var(--muted); }
strong { color: var(--text); }
a { color: var(--green); }
.card { background: var(--card); border-radius: 18px; padding: 24px 28px; margin-top: 24px; box-shadow: 0 1px 0 rgba(0,0,0,0.04), 0 10px 30px rgba(0,0,0,0.06); }
footer { margin-top: 56px; font-size: 14px; color: var(--muted); }
nav a { margin-right: 18px; }