/* ==========================================================================
   Saudia.wiki — public stylesheet
   Design tokens, light/dark themes, RTL support, responsive layout.
   ========================================================================== */

:root {
  --green-900: #0b3d2c;
  --green-800: #0f5138;
  --green-700: #146c43;
  --green-600: #1a8a55;
  --green-500: #22a06b;
  --sand-50:  #fbf9f4;
  --sand-100: #f4efe4;
  --sand-200: #e7dfcd;
  --ink-900:  #14181c;
  --ink-700:  #333b42;
  --ink-500:  #5b666f;
  --ink-300:  #8b959d;
  --line:     #e2ddd1;
  --surface:  #ffffff;
  --surface-2:#faf8f3;
  --accent:   #b8860b;
  --danger:   #b3261e;
  --radius:   14px;
  --radius-sm:8px;
  --shadow:   0 1px 2px rgba(20,24,28,.06), 0 8px 24px rgba(20,24,28,.06);
  --shadow-lg:0 12px 40px rgba(20,24,28,.14);
  --wrap:     1180px;
  --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, "Noto Sans", "Noto Naskh Arabic", sans-serif;
  --font-ar: "Noto Naskh Arabic", "Segoe UI", Tahoma, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --sand-50:  #12161a;
    --sand-100: #171c21;
    --sand-200: #232a31;
    --ink-900:  #eef2f5;
    --ink-700:  #c6ced5;
    --ink-500:  #9aa5ae;
    --ink-300:  #6f7a83;
    --line:     #2b333b;
    --surface:  #171c21;
    --surface-2:#1d2329;
    --green-700:#2fae74;
    --green-600:#35c184;
    --accent:   #e0b64a;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body.wiki {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-900);
  background: var(--sand-50);
  text-rendering: optimizeLegibility;
}

body.wiki.rtl { font-family: var(--font-ar); }

img { max-width: 100%; height: auto; }

a { color: var(--green-700); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { line-height: 1.25; color: var(--ink-900); font-weight: 700; }
h1 { font-size: clamp(1.7rem, 1.2rem + 2vw, 2.5rem); }
h2 { font-size: clamp(1.3rem, 1.1rem + 1vw, 1.7rem); }
h3 { font-size: 1.15rem; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 20px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; inset-inline-start: -9999px; top: 0; z-index: 100;
  background: var(--green-700); color: #fff; padding: 10px 16px; border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { inset-inline-start: 0; }

.muted { color: var(--ink-500); }
.small { font-size: .85rem; }
.arabic { font-family: var(--font-ar); font-size: 1.05rem; }

/* ---------- Header ---------- */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 40;
}
.header-inner {
  display: flex; align-items: center; gap: 18px;
  min-height: 68px; padding-block: 10px;
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink-900); }
.brand:hover { text-decoration: none; }
.brand-mark {
  display: grid; place-items: center; width: 42px; height: 42px; flex: 0 0 42px;
  background: linear-gradient(145deg, var(--green-700), var(--green-500));
  color: #fff; border-radius: 12px; font-size: 1.4rem; font-weight: 700;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 1.15rem; letter-spacing: -.01em; }
.brand-text small { color: var(--ink-500); font-size: .74rem; }

.header-search { position: relative; flex: 1 1 auto; max-width: 520px; display: flex; }
.header-search input {
  flex: 1; min-width: 0; padding: 10px 14px; font: inherit; font-size: .95rem;
  border: 1px solid var(--line); border-inline-end: 0;
  border-start-start-radius: var(--radius-sm); border-end-start-radius: var(--radius-sm);
  background: var(--surface-2); color: var(--ink-900);
}
.header-search button {
  border: 1px solid var(--line); background: var(--surface-2); color: var(--ink-700);
  padding: 0 14px; cursor: pointer;
  border-start-end-radius: var(--radius-sm); border-end-end-radius: var(--radius-sm);
}
.header-search button:hover { color: var(--green-700); }

.header-actions { display: flex; align-items: center; gap: 10px; margin-inline-start: auto; }

.lang-switch { position: relative; }
.lang-toggle {
  font: inherit; font-size: .9rem; padding: 8px 12px; cursor: pointer;
  background: var(--surface-2); color: var(--ink-700);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
}
.lang-menu {
  position: absolute; inset-inline-end: 0; top: calc(100% + 6px); z-index: 50;
  min-width: 190px; margin: 0; padding: 6px; list-style: none;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
  max-height: 60vh; overflow: auto;
}
.lang-menu a { display: block; padding: 8px 10px; border-radius: 6px; color: var(--ink-700); }
.lang-menu a:hover { background: var(--surface-2); text-decoration: none; }
.lang-menu a[aria-current="true"] { color: var(--green-700); font-weight: 600; }

.nav-toggle {
  display: none; width: 42px; height: 42px; cursor: pointer;
  background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius-sm);
}
.bars, .bars::before, .bars::after {
  display: block; width: 18px; height: 2px; background: var(--ink-700); margin-inline: auto;
}
.bars { position: relative; }
.bars::before, .bars::after { content: ""; position: absolute; inset-inline-start: 0; }
.bars::before { top: -6px; }
.bars::after { top: 6px; }

.primary-nav { background: var(--green-800); }
.nav-list {
  display: flex; flex-wrap: wrap; gap: 2px; margin: 0; padding: 0; list-style: none;
}
.nav-item { position: relative; }
.nav-item > a {
  display: block; padding: 12px 14px; color: #eaf3ee; font-size: .93rem; font-weight: 500;
}
.nav-item > a:hover { background: rgba(255,255,255,.1); text-decoration: none; }
.submenu-toggle {
  position: absolute; inset-inline-end: 0; top: 0; height: 100%; width: 26px;
  background: transparent; border: 0; color: #cfe3d8; cursor: pointer;
}
.submenu {
  position: absolute; inset-inline-start: 0; top: 100%; z-index: 45;
  min-width: 240px; margin: 0; padding: 6px; list-style: none;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm); box-shadow: var(--shadow-lg);
}
.submenu a { display: block; padding: 8px 12px; border-radius: 6px; color: var(--ink-700); font-size: .92rem; }
.submenu a:hover { background: var(--surface-2); text-decoration: none; }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs { padding-block: 14px 0; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; font-size: .85rem; color: var(--ink-500); }
.breadcrumbs li + li::before { content: "/"; margin-inline-end: 6px; color: var(--ink-300); }

/* ---------- Main ---------- */
.main { padding-block: 28px 56px; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(150deg, var(--green-900), var(--green-700) 60%, var(--green-600));
  color: #fff; border-radius: var(--radius); padding: clamp(28px, 5vw, 56px);
  margin-block-end: 36px; box-shadow: var(--shadow);
}
.hero h1 { color: #fff; margin: 0 0 10px; }
.hero-lede { max-width: 62ch; margin: 0 0 22px; color: #dcece3; font-size: 1.05rem; }
.hero-search { position: relative; display: flex; max-width: 620px; gap: 8px; }
.hero-search input {
  flex: 1; min-width: 0; padding: 13px 16px; font: inherit;
  border: 0; border-radius: var(--radius-sm); background: rgba(255,255,255,.96); color: #14181c;
}
.hero-stats { display: flex; flex-wrap: wrap; gap: 26px; margin: 26px 0 0; padding: 0; list-style: none; }
.hero-stats li { color: #cfe3d8; font-size: .9rem; }
.hero-stats strong { display: block; font-size: 1.5rem; color: #fff; }

/* ---------- Sections ---------- */
.section { margin-block-end: 40px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-block-end: 16px; border-block-end: 2px solid var(--line); padding-block-end: 8px; }
.section-head h2 { margin: 0; }
.section-more { font-size: .9rem; white-space: nowrap; }

/* ---------- Cards ---------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow); transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.card h3 { margin: 0 0 8px; }
.card h3 a { color: var(--ink-900); }
.card p { margin: 0; color: var(--ink-500); font-size: .93rem; }
.card-kicker { display: inline-block; margin-block-end: 8px; font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); font-weight: 700; }
.card-compact { padding: 16px; }

.topic-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.topic {
  display: flex; flex-direction: column; gap: 4px; padding: 16px 18px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm);
  color: var(--ink-900); box-shadow: var(--shadow);
}
.topic:hover { border-color: var(--green-600); text-decoration: none; }
.topic-title { font-weight: 600; }
.topic-desc { font-size: .85rem; color: var(--ink-500); }

.link-list { margin: 0; padding: 0; list-style: none; }
.link-list li { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px; padding: 10px 0; border-block-end: 1px solid var(--line); }
.link-list li:last-child { border-block-end: 0; }
.link-list time { margin-inline-start: auto; }

/* ---------- Entry (article / entity) ---------- */
.entry-head { margin-block-end: 24px; }
.entry-kicker { display: inline-block; margin-block-end: 8px; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); font-weight: 700; }
.entry-head h1 { margin: 0 0 10px; }
.entry-lede { font-size: 1.1rem; color: var(--ink-700); max-width: 70ch; margin: 0 0 12px; }
.entry-meta { display: flex; flex-wrap: wrap; gap: 14px; font-size: .85rem; color: var(--ink-500); margin: 0; }
.badge { background: var(--surface-2); border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; font-size: .78rem; }

.entry-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 36px; align-items: start; }
.entry-body { min-width: 0; }
.entry-body h2 { margin-block: 32px 12px; padding-block-end: 6px; border-block-end: 1px solid var(--line); }
.entry-body h3 { margin-block: 24px 10px; }
.entry-body p { margin-block: 0 16px; }
.entry-body ul, .entry-body ol { margin-block: 0 16px; padding-inline-start: 24px; }
.entry-body li { margin-block-end: 6px; }
.entry-body pre { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px; overflow: auto; }
.entry-body code { background: var(--surface-2); padding: 2px 6px; border-radius: 4px; font-size: .9em; }
.entry-body pre code { background: none; padding: 0; }

.quick-answer {
  background: var(--surface-2); border: 1px solid var(--line); border-inline-start: 4px solid var(--green-600);
  border-radius: var(--radius-sm); padding: 18px 20px; margin-block-end: 26px;
}
.quick-answer h2 { margin: 0 0 8px; font-size: 1rem; text-transform: uppercase; letter-spacing: .05em; color: var(--green-700); border: 0; padding: 0; }
.quick-answer p { margin: 0; }

.entry-aside { position: sticky; top: 88px; display: flex; flex-direction: column; gap: 20px; }
.infobox, .toc, .aside-block {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 18px;
}
.infobox h2, .toc h2, .aside-block h2 { margin: 0 0 10px; font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-500); }
.infobox ul { margin: 0; padding-inline-start: 18px; font-size: .9rem; }
.infobox li { margin-block-end: 6px; }
.infobox dl { margin: 0; font-size: .9rem; }
.infobox dt { font-weight: 600; color: var(--ink-700); margin-block-start: 8px; }
.infobox dd { margin: 0; color: var(--ink-500); word-break: break-word; }
.toc ol { margin: 0; padding-inline-start: 18px; font-size: .9rem; }
.toc li { margin-block-end: 5px; }
.toc-level-3 { margin-inline-start: 14px; font-size: .86rem; }
.lang-list { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.lang-list a { display: inline-block; padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; font-size: .82rem; color: var(--ink-700); }
.lang-list a[aria-current="true"] { background: var(--green-700); border-color: var(--green-700); color: #fff; }

.references { margin-block-start: 36px; }
.references ol { font-size: .9rem; color: var(--ink-700); }
.references li { margin-block-end: 8px; }

/* ---------- Search ---------- */
.page-head-public { margin-block-end: 26px; }
.page-head-public h1 { margin: 0 0 8px; }
.lede { font-size: 1.05rem; color: var(--ink-700); max-width: 70ch; }
.search-form { position: relative; display: flex; gap: 8px; max-width: 640px; margin-block: 16px; }
.search-form input { flex: 1; min-width: 0; padding: 12px 15px; font: inherit; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); color: var(--ink-900); }
.result-list { margin: 0; padding: 0; list-style: none; }
.result { padding: 18px 0; border-block-end: 1px solid var(--line); }
.result-type { display: inline-block; font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); font-weight: 700; }
.result h2 { margin: 4px 0 6px; font-size: 1.2rem; }
.result p { margin: 0; color: var(--ink-500); font-size: .93rem; }
.chip-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 0; padding: 0; list-style: none; }
.chip { display: inline-block; padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px; font-size: .88rem; background: var(--surface); }

.suggest {
  position: absolute; inset-inline: 0; top: calc(100% + 4px); z-index: 60;
  margin: 0; padding: 6px; list-style: none; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
}
.suggest li a { display: block; padding: 8px 10px; border-radius: 6px; color: var(--ink-700); font-size: .92rem; }
.suggest li a:hover, .suggest li a.is-active { background: var(--surface-2); text-decoration: none; }

/* ---------- FAQ ---------- */
.faq-list { margin: 0; padding: 0; list-style: none; }
.faq-item { padding: 16px 0; border-block-end: 1px solid var(--line); }
.faq-item h3 { margin: 0 0 6px; }
.faq-item p { margin: 0; color: var(--ink-500); font-size: .93rem; }

/* ---------- Compare ---------- */
.compare-form { margin-block-end: 26px; }
.compare-form fieldset { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 18px; background: var(--surface); }
.compare-form legend { font-weight: 600; padding-inline: 6px; }
.compare-picker { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; margin-block-end: 14px; }
.check { display: flex; align-items: center; gap: 8px; font-size: .92rem; }
.table-scroll { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.table th, .table td { padding: 10px 14px; text-align: start; border-block-end: 1px solid var(--line); font-size: .92rem; }
.table thead th { background: var(--surface-2); font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-500); }
.compare-table tbody th { font-weight: 600; color: var(--ink-700); }

/* ---------- Pagination ---------- */
.pagination { display: flex; flex-wrap: wrap; gap: 6px; margin-block-start: 26px; }
.pagination a, .pagination span { padding: 8px 13px; border: 1px solid var(--line); border-radius: var(--radius-sm); font-size: .9rem; background: var(--surface); }
.pagination .current { background: var(--green-700); border-color: var(--green-700); color: #fff; }

/* ---------- Empty / error ---------- */
.empty-state { padding: 40px 24px; text-align: center; background: var(--surface); border: 1px dashed var(--line); border-radius: var(--radius); color: var(--ink-500); }
.error-page { text-align: center; padding-block: 40px; }
.error-code { font-size: clamp(3rem, 8vw, 6rem); font-weight: 800; color: var(--green-700); margin: 0; line-height: 1; }
.error-page .search-form { margin-inline: auto; }
.trace { text-align: start; background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px; overflow: auto; font-size: .82rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--green-900); color: #cfe3d8; margin-block-start: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; padding-block: 44px; }
.site-footer h2, .site-footer h3 { color: #fff; font-size: 1rem; margin: 0 0 12px; }
.site-footer p { margin: 0; font-size: .9rem; color: #a9c6b6; }
.site-footer ul { margin: 0; padding: 0; list-style: none; }
.site-footer li { margin-block-end: 7px; }
.site-footer a { color: #cfe3d8; font-size: .9rem; }
.site-footer a:hover { color: #fff; }
.footer-langs { display: flex; flex-wrap: wrap; gap: 6px 14px; }
.footer-bottom { border-block-start: 1px solid rgba(255,255,255,.12); padding-block: 18px; }
.footer-bottom p { font-size: .82rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; font: inherit; font-size: .93rem; font-weight: 600;
  padding: 10px 18px; border-radius: var(--radius-sm); cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-900);
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--green-700); border-color: var(--green-700); color: #fff; }
.btn-primary:hover { background: var(--green-600); }
.btn-ghost { background: transparent; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .entry-layout { grid-template-columns: 1fr; }
  .entry-aside { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .header-inner { flex-wrap: wrap; }
  .header-search { order: 3; flex-basis: 100%; max-width: none; }
  .nav-toggle { display: block; }
  .primary-nav { display: none; }
  .primary-nav.is-open { display: block; }
  .nav-list { flex-direction: column; }
  .nav-item > a { padding: 12px 16px; }
  .submenu { position: static; box-shadow: none; border: 0; border-radius: 0; background: rgba(0,0,0,.15); }
  .submenu a { color: #dcece3; }
  .submenu-toggle { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}