:root { --bg: #f4f6ef; --card: #ffffff; --ink: #1f2a1b; --muted: #5b6655; --line: #dce2d2; --accent: #3f7d2c; }
@media (prefers-color-scheme: dark) { :root { --bg: #12160f; --card: #1a2016; --ink: #e8ece0; --muted: #a2ab97; --line: #2f3828; --accent: #7cc35f; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.7 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif; }
main { max-width: 780px; margin: 0 auto; padding: 40px 18px 80px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
header img { width: 48px; height: 48px; border-radius: 12px; image-rendering: pixelated; }
h1 { font-size: 30px; line-height: 1.2; margin: 0; }
h2 { font-size: 20px; margin: 36px 0 8px; color: var(--accent); }
p, li { max-width: 70ch; }
.meta { color: var(--muted); font-size: 14px; margin: 4px 0 24px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px 20px; }
nav { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 40px; font-size: 14px; }
a { color: var(--accent); }