:root {
  --bg: #f7f8fa; --card: #ffffff; --ink: #14233b; --muted: #5b6678; --brand: #009b77; --line: #e3e7ee;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1724; --card: #172235; --ink: #e8edf5; --muted: #9aa6b8; --brand: #2fc29b; --line: #26344c; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Arabic", Tahoma, sans-serif;
}
header { background: var(--card); border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; gap: 12px; padding-top: 14px; padding-bottom: 14px; }
header a.brand { color: var(--ink); text-decoration: none; font-weight: 700; font-size: 18px; }
header nav { margin-inline-start: auto; display: flex; gap: 16px; flex-wrap: wrap; }
header nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
header nav a:hover { color: var(--brand); }
.wrap { max-width: 820px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }
main { padding-top: 28px; padding-bottom: 48px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 24px; margin-bottom: 20px; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 6px; }
h2 { font-size: 19px; margin: 26px 0 6px; }
p, li { color: var(--ink); }
.muted { color: var(--muted); font-size: 14px; }
a { color: var(--brand); }
ul { padding-inline-start: 22px; }
.lang-switch { font-size: 14px; }
[dir="rtl"] { font-family: "Noto Sans Arabic", Tahoma, system-ui, sans-serif; }
footer { color: var(--muted); font-size: 13px; padding: 24px 0 40px; text-align: center; }
.mark { width: 34px; height: 34px; border-radius: 9px; background: var(--brand); display: inline-grid; place-items: center; }
.mark svg { width: 22px; height: 22px; fill: #fff; }