:root { --bg: #f6f7f9; --card: #fff; --ink: #14202e; --slate: #4a5868; --mute: #7a8796; --rule: #e3e7ec; --acc: #0f9d6b; }
@media (prefers-color-scheme: dark) { :root { --bg: #0e141b; --card: #151d27; --ink: #e8edf2; --slate: #b6c1cc; --mute: #8693a0; --rule: #263241; --acc: #4fd1a1; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
header { max-width: 820px; margin: 0 auto; padding: 28px 16px 8px; display: flex; align-items: center; gap: 12px; }
header img { width: 40px; height: 40px; border-radius: 10px; }
header a.brand { color: var(--ink); text-decoration: none; font-weight: 700; font-size: 18px; }
header nav { margin-left: auto; display: flex; gap: 16px; font-size: 14px; flex-wrap: wrap; }
a { color: var(--acc); }
main { max-width: 820px; margin: 12px auto 40px; padding: 28px 24px; background: var(--card); border: 1px solid var(--rule); border-radius: 14px; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 4px; }
h2 { font-size: 19px; margin: 28px 0 8px; }
p, li { color: var(--slate); }
.meta { color: var(--mute); font-size: 14px; margin: 0 0 20px; }
ul { padding-left: 20px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 8px 0; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { color: var(--ink); }
footer { max-width: 820px; margin: 0 auto 32px; padding: 0 16px; color: var(--mute); font-size: 13px; }
@media (max-width: 600px) { main { padding: 20px 16px; border-radius: 0; border-left: 0; border-right: 0; } header nav { width: 100%; margin-left: 0; } }