:root { --bg: #F6F2EA; --card: #fff; --ink: #12204A; --muted: #4A5578; --blue: #2457E6; --line: #E4DED2; }
@media (prefers-color-scheme: dark) { :root { --bg: #0A1024; --card: #121A36; --ink: #EEF1FA; --muted: #B4BCD6; --blue: #8FB0FF; --line: #26304F; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: Rubik, system-ui, -apple-system, "Segoe UI", Arial, sans-serif; font-size: 16.5px; line-height: 1.75; }
main { max-width: 760px; margin: 0 auto; padding: 24px 18px 80px; }
header { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
header img { width: 44px; height: 44px; border-radius: 12px; }
header a { color: var(--ink); text-decoration: none; font-weight: 800; font-size: 20px; }
h1 { font-size: 30px; line-height: 1.2; margin: 6px 0 6px; }
h2 { font-size: 20px; margin: 30px 0 6px; }
p, li { color: var(--ink); }
.meta { color: var(--muted); font-size: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 16px 18px; margin: 14px 0; }
.draft { background: #FFF4D6; color: #3A2A00; border-radius: 14px; padding: 12px 14px; font-size: 14px; margin: 12px 0; }
@media (prefers-color-scheme: dark) { .draft { background: #3A2E10; color: #FBE7B0; } }
a { color: var(--blue); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }
nav.toc { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 14px; margin-top: 30px; padding-top: 16px; border-top: 1px solid var(--line); }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
td, th { border: 1px solid var(--line); padding: 8px 10px; text-align: start; vertical-align: top; }