:root { --bg: #ffffff; --text: #111827; --muted: #4b5563; --line: #e5e7eb; --accent: #2563eb; --card: #f9fafb; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #030a1c; --text: #e8edf5; --muted: #9aa6ba; --line: #1f2a3d; --accent: #60a5fa; --card: #0b1427; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.65 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 48px 20px 80px; }
header { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; }
header img { width: 64px; height: 64px; border-radius: 14px; }
header a { color: inherit; text-decoration: none; font-size: 26px; font-weight: 700; }
h1 { font-size: 34px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 21px; margin: 36px 0 8px; }
p, li { color: var(--text); }
.muted { color: var(--muted); }
a { color: var(--accent); }
code { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 2px 6px; font-size: 15px; word-break: break-all; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px 22px; margin: 20px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; border-bottom: 1px solid var(--line); padding: 8px 6px; vertical-align: top; }
footer { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 14px; }
nav a { margin-right: 18px; }