:root { --ink: #12132A; --paper: #F6F7FB; --brand: #3B3BF5; --muted: #5b5d78; }
@media (prefers-color-scheme: dark) { :root { --ink: #E9EAF5; --paper: #12132A; --muted: #a3a5c2; --brand: #8f8ffb; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.7 system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 24px; }
header a.brand { font-weight: 700; font-size: 20px; color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
nav a { color: var(--brand); margin-inline-start: 14px; font-size: 14px; }
h1 { font-size: 28px; margin: 0 0 4px; }
h2 { font-size: 19px; margin: 28px 0 6px; }
p, li { color: var(--ink); }
.muted { color: var(--muted); font-size: 14px; }
section[lang="ar"] { direction: rtl; text-align: right; border-top: 1px solid rgba(127,127,160,.3); margin-top: 40px; padding-top: 24px; }
a { color: var(--brand); }