:root {
  color-scheme: light dark;
  --bg: #fafaf9; --fg: #1c1917; --muted: #57534e; --line: #e7e5e4; --card: #ffffff; --accent: #0f766e;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #1c1917; --fg: #f5f5f4; --muted: #a8a29e; --line: #44403c; --card: #292524; --accent: #2dd4bf; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.7 system-ui, -apple-system, "Segoe UI", Tahoma, "Noto Sans Arabic", sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header.site { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  padding-bottom: 16px; border-bottom: 1px solid var(--line); margin-bottom: 24px; }
header.site a.brand { font-weight: 700; font-size: 1.15rem; color: var(--fg); text-decoration: none; }
nav { display: flex; gap: 14px; flex-wrap: wrap; }
a { color: var(--accent); }
h1 { font-size: 1.7rem; line-height: 1.3; margin: 0 0 4px; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; }
h3 { font-size: 1rem; margin: 20px 0 6px; }
p, li { color: var(--muted); }
strong { color: var(--fg); }
.meta { font-size: .9rem; color: var(--muted); margin: 0 0 20px; }
.lang-switch { display: inline-block; margin: 0 0 8px; font-weight: 600; }
section.lang { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 4px 20px 20px;
  margin: 24px 0; }
[dir="rtl"] { text-align: right; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin: 8px 0 12px; font-size: .95rem; }
th, td { text-align: start; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--fg); font-weight: 600; }
td { color: var(--muted); }
footer { margin-top: 40px; padding-top: 16px; border-top: 1px solid var(--line); font-size: .9rem; color: var(--muted); }
footer a { margin-inline-end: 14px; }