:root { color-scheme: light dark; --bg:#f4f5f7; --surface:#fff; --text:#16181d; --text-2:#6b7280; --accent:#2563eb; --border:#e2e4e9; }
@media (prefers-color-scheme: dark) { :root { --bg:#0f1115; --surface:#1a1d24; --text:#eef0f4; --text-2:#9aa1b1; --border:#2d3140; } }
* { box-sizing: border-box; }
body { margin:0; font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; background:var(--bg); color:var(--text); }
main { max-width: 720px; margin: 0 auto; padding: 24px 20px 64px; }
h1 { font-size: 26px; margin: 8px 0 4px; }
h2 { font-size: 18px; margin: 28px 0 8px; }
p, li { color: var(--text); }
.meta { color: var(--text-2); font-size: 14px; }
.lang { display:flex; gap:12px; font-size:14px; margin-bottom: 8px; }
a { color: var(--accent); }
.todo { background: #fef3c7; color: #92400e; padding: 2px 6px; border-radius: 4px; font-weight: 600; }
@media (prefers-color-scheme: dark) { .todo { background:#78350f; color:#fde68a; } }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
td, th { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border); vertical-align: top; }
footer { margin-top: 40px; font-size: 13px; color: var(--text-2); }