:root {
  --bg: #f6f8fc; --surface: #ffffff; --ink: #141b2d; --ink-2: #525d73; --ink-3: #8590a5; --line: #e0e5ee;
  --brand: #2346d6; --brand-soft: #e8eeff; --hero: #0f2a6b; --hero-ink: #eef2ff; --accent: #f2a516;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0f131c; --surface: #161c28; --ink: #e7ebf3; --ink-2: #a8b1c2; --ink-3: #7b8496; --line: #2a3242;
  --brand: #7aa2ff; --brand-soft: #1b2850; --hero: #0a1633; --hero-ink: #eef2ff; --accent: #e2a85a; color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.85 "IBM Plex Sans Arabic", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--brand); }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.top { background: var(--hero); color: var(--hero-ink); }
.top .wrap { display: flex; align-items: center; gap: 16px; height: 60px; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--hero-ink); font-weight: 700; font-size: 19px; text-decoration: none; }
.logo-mark { width: 32px; height: 32px; display: block; flex: none; }
.top nav { margin-inline-start: auto; display: flex; gap: 18px; font-size: 15px; }
.top nav a { color: var(--hero-ink); opacity: .85; text-decoration: none; }
.top nav a[aria-current] { opacity: 1; font-weight: 600; }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 20px; }
main { padding: 40px 0 56px; }
h1 { font-size: clamp(28px, 4vw, 36px); line-height: 1.3; margin: 0 0 6px; }
.meta { color: var(--ink-3); font-size: 14px; margin: 0 0 24px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 28px clamp(18px, 4vw, 36px); }
.toc { background: var(--brand-soft); border-radius: 12px; padding: 14px 18px; margin: 0 0 26px; }
.toc b { display: block; margin-bottom: 4px; font-size: 15px; }
.toc ol { margin: 0; padding-inline-start: 20px; columns: 2; column-gap: 28px; font-size: 15px; }
@media (max-width: 560px) { .toc ol { columns: 1; } }
h2 { font-size: 20px; margin: 28px 0 8px; scroll-margin-top: 16px; }
h2:first-of-type { margin-top: 0; }
p, li { color: var(--ink-2); }
ul { padding-inline-start: 22px; }
li { margin: 4px 0; }
strong { color: var(--ink); }
.provider { border-inline-start: 3px solid var(--brand); padding: 4px 14px; margin: 10px 0; }
.provider p { margin: 2px 0; }
footer { color: var(--ink-3); font-size: 14px; padding: 0 0 40px; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; border-top: 1px solid var(--line); padding-top: 20px; }
footer nav { display: flex; gap: 16px; }
@media print { .top nav, .toc, footer nav { display: none; } .card { border: 0; padding: 0; } body { background: #fff; } }

/* زر اللغة */
.lang-btn { display: inline-flex; align-items: center; gap: 6px; padding: 6px 11px; border: 1px solid rgba(238,242,255,.35); border-radius: 999px; background: transparent; color: var(--hero-ink); font: inherit; font-size: 13px; font-weight: 600; cursor: pointer; margin-inline-start: 12px; white-space: nowrap; }
.lang-btn:hover { border-color: var(--accent); color: var(--accent); }
@media print { .lang-btn { display: none; } }

.note { background: var(--brand-soft); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; font-size: 14px; color: var(--ink-2); }
[dir=ltr] body { text-align: left; }