/* ============================================================================
   Tabaqat Hub — LIGHT theme.
   Brand: teal (primary) + orange (accent), white surfaces, Tajawal type.
   Direction-aware (LTR / RTL).
   ========================================================================== */

:root {
  /* teal ramp */
  --teal-900: #0b3b38;
  --teal-800: #0e4a46;
  --teal-700: #0e5b57;
  --teal-600: #11756c;
  --teal-500: #149b8e;
  --teal-400: #1bb39e;
  --teal-100: #cdeae5;
  --teal-50:  #e9f6f3;

  /* orange accent */
  --orange:      #f5a623;
  --orange-600:  #e0900f;
  --orange-50:   #fdf1dc;

  /* neutrals */
  --ink:     #14302e;
  --muted:   #5e7470;
  --bg:      #ffffff;
  --surface: #f4f8f7;
  --card:    #ffffff;
  --border:  #e4edeb;
  --border-2:#d3e2df;

  --radius:    16px;
  --radius-sm: 10px;
  --radius-lg: 22px;
  --shadow:    0 12px 30px -16px rgba(14, 91, 87, 0.28);
  --shadow-sm: 0 4px 14px -8px rgba(14, 91, 87, 0.30);
  --maxw: 1180px;
  --font: "Tajawal", system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { color: var(--teal-700); font-weight: 800; letter-spacing: -0.01em; }

.container { width: min(var(--maxw), 92vw); margin-inline: auto; }

/* ---------------------------------------------------------------- header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 22px; height: 74px; }

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-logo { height: 42px; width: auto; display: block; }
/* the colored logo needs a light backing on the dark footer */
.site-footer .brand { background: #fff; padding: 9px 14px; border-radius: 12px; }
.site-footer .brand-logo { height: 38px; }
.brand-sub {
  font-size: 11px; font-weight: 800; letter-spacing: 0.18em;
  color: #fff; background: var(--teal-500);
  padding: 2px 8px; border-radius: 6px; align-self: center;
}
body.rtl .brand-sub { letter-spacing: 0.02em; }

.main-nav { display: flex; gap: 4px; margin-inline-start: auto; }
.nav-link {
  position: relative;
  padding: 9px 14px;
  color: var(--teal-700);
  font-weight: 700;
  font-size: 15.5px;
  border-radius: 8px;
  transition: color .15s, background .15s;
}
.nav-link:hover { background: var(--teal-50); }
.nav-link.active { color: var(--orange-600); }
.nav-link.active::after {
  content: ""; position: absolute; inset-inline: 14px; bottom: 2px; height: 3px;
  background: var(--orange); border-radius: 3px;
}

.header-actions { display: flex; align-items: center; gap: 12px; }
.login-link { color: var(--orange-600); font-weight: 700; font-size: 15px; }
.login-link:hover { color: var(--orange); }
.lang-toggle {
  border: 1.5px solid var(--orange);
  color: var(--orange-600);
  padding: 7px 16px; border-radius: 8px;
  font-weight: 700; font-size: 14px;
  transition: background .15s, color .15s;
}
.lang-toggle:hover { background: var(--orange); color: #fff; }

/* ------------------------------------------------------------------ hero --- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(155deg, var(--teal-900) 0%, var(--teal-600) 45%, var(--teal-400) 100%);
  color: #fff;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  padding: 64px 0 72px;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
  background-image:
    radial-gradient(circle at 85% 15%, rgba(255,255,255,.10), transparent 45%),
    repeating-linear-gradient(60deg, rgba(255,255,255,.05) 0 1px, transparent 1px 30px),
    repeating-linear-gradient(-60deg, rgba(255,255,255,.04) 0 1px, transparent 1px 30px);
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 36px;
}
.hero-copy { max-width: 600px; }
.hero-kicker {
  display: inline-block;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.25);
  color: #fff; font-weight: 700; font-size: 13px;
  padding: 5px 14px; border-radius: 999px; margin: 0 0 16px;
}
.hero-title { color: #fff; font-size: clamp(30px, 4.6vw, 50px); line-height: 1.15; margin: 0 0 16px; font-weight: 900; }
.hero-lead { color: rgba(255,255,255,.9); font-size: 18px; margin: 0 0 28px; }

.hero-art { position: relative; display: flex; justify-content: center; }
.hero-art img { width: 100%; max-width: 520px; height: auto; filter: drop-shadow(0 24px 40px rgba(0,0,0,.28)); }

.hero-search {
  display: flex; align-items: center; gap: 8px;
  background: #fff; border-radius: 12px; padding: 7px 7px 7px 16px;
  max-width: 560px; box-shadow: 0 18px 40px -20px rgba(0,0,0,.5);
}
body.rtl .hero-search { padding: 7px 16px 7px 7px; }
.search-ico { width: 20px; height: 20px; color: var(--muted); flex: none; }
.search-input { flex: 1; border: 0; outline: none; background: transparent; color: var(--ink); font-size: 16px; font-family: inherit; }
.search-input::placeholder { color: #8aa19d; }

.hero-stats { display: flex; gap: 36px; margin-top: 30px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; }
.stat-num { font-size: 30px; font-weight: 900; color: #fff; }
.stat-lbl { font-size: 13.5px; color: rgba(255,255,255,.85); }

/* --------------------------------------------------------------- buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 10px;
  font-weight: 700; font-size: 15px; font-family: inherit;
  border: 1.5px solid var(--border-2); background: #fff; color: var(--teal-700);
  cursor: pointer; transition: transform .12s, box-shadow .15s, background .15s, border-color .15s, color .15s;
}
.btn:hover { border-color: var(--teal-500); color: var(--teal-600); transform: translateY(-1px); }
.btn-accent { background: var(--orange); color: var(--ink); border-color: transparent; box-shadow: var(--shadow-sm); }
.btn-accent:hover { background: var(--orange-600); color: #fff; transform: translateY(-1px); }
.btn-ghost { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.4); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.24); color: #fff; border-color: #fff; }
.btn.block { display: flex; width: 100%; margin-bottom: 10px; }

/* -------------------------------------------------------------- sections --- */
.section { padding: 60px 0; }
.section.alt { background: var(--surface); }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.section-head h2 { font-size: 27px; margin: 0; position: relative; padding-bottom: 12px; }
.section-head h2::after { content: ""; position: absolute; inset-inline-start: 0; bottom: 0; width: 46px; height: 4px; background: var(--orange); border-radius: 4px; }
.section-link { color: var(--teal-600); font-weight: 700; font-size: 14.5px; }
.section-link:hover { color: var(--orange-600); }
.lead { color: var(--muted); font-size: 17px; max-width: 640px; }

/* ------------------------------------------------------------------ tiles -- */
.tile-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; }
.tile {
  display: flex; flex-direction: column; gap: 10px;
  padding: 22px 20px; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .14s, border-color .15s, box-shadow .15s;
}
.tile:hover { transform: translateY(-4px); border-color: var(--orange); box-shadow: var(--shadow); }
.tile-icon { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; background: var(--teal-50); color: var(--teal-600); overflow: hidden; }
.tile-icon svg { width: 26px; height: 26px; }
.tile-img { width: 30px; height: 30px; object-fit: contain; }

/* ------------------------------------------------------------- pagination -- */
.pagination { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 32px; }
.page-btn { padding: 9px 16px; border: 1px solid var(--border); border-radius: 10px; font-weight: 600; color: var(--teal-700); background: var(--card); transition: border-color .15s, transform .14s; }
.page-btn:hover { border-color: var(--orange); transform: translateY(-2px); }
.page-btn.disabled { color: var(--muted); border-color: var(--border); opacity: .5; pointer-events: none; }
.page-info { font-size: 14px; color: var(--muted); }
.tile-label { font-weight: 700; font-size: 16px; color: var(--teal-700); }
.tile-count { font-size: 13px; color: var(--muted); }

/* ------------------------------------------------------------------ cards -- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 18px; }
.card {
  position: relative;
  display: flex; flex-direction: column;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: transform .14s, border-color .15s, box-shadow .15s;
  overflow: hidden;
}
.card::before { content: ""; position: absolute; inset-inline: 0; top: 0; height: 3px; background: var(--orange); transform: scaleX(0); transform-origin: var(--ts, left); transition: transform .2s; }
.card:hover { transform: translateY(-4px); border-color: var(--border-2); box-shadow: var(--shadow); }
.card:hover::before { transform: scaleX(1); }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; background: var(--teal-50); color: var(--teal-600); }
.badge-icon { width: 14px; height: 14px; }
.badge-source { background: var(--orange-50); color: var(--orange-600); }
.card-cat { font-size: 12.5px; color: var(--muted); font-weight: 700; }
.card-title { font-size: 18px; margin: 0 0 8px; }
.card-summary { color: var(--muted); font-size: 14px; margin: 0; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); font-size: 12px; color: var(--muted); }
.card-geom { display: inline-flex; align-items: center; gap: 6px; }
.card-geom svg { width: 14px; height: 14px; }

/* ----------------------------------------------------- dataset card (v2) -- */
.dataset-card { padding: 18px; }
.card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.card-icon { flex-shrink: 0; width: 34px; height: 34px; border-radius: 9px; background: var(--teal-50); display: grid; place-items: center; overflow: hidden; }
.card-icon-img { width: 22px; height: 22px; object-fit: contain; }
.dataset-card .card-cat { font-size: 12px; font-weight: 700; color: var(--teal-600); text-transform: uppercase; letter-spacing: .03em; }
body.rtl .dataset-card .card-cat { letter-spacing: 0; }
.dataset-card .card-title { font-size: 16px; line-height: 1.45; font-weight: 800; color: var(--teal-800, var(--teal-700)); margin: 0; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.dataset-card .card-foot { margin-top: 14px; padding-top: 12px; }
.dataset-card .card-geom { padding: 3px 9px; border-radius: 999px; background: var(--teal-50); color: var(--teal-600); font-weight: 700; }
.card-link { color: var(--teal-600); font-weight: 700; font-size: 14px; margin-top: 14px; }

.app-card { flex-direction: row; gap: 16px; align-items: stretch; }
.app-thumb { width: 88px; flex: none; border-radius: 12px; background: linear-gradient(145deg, var(--teal-500), var(--teal-400)); display: grid; place-items: center; color: #fff; }
.app-thumb svg { width: 38px; height: 38px; }
.app-body { display: flex; flex-direction: column; gap: 6px; }
.source-card .card-summary { -webkit-line-clamp: 4; }

/* -------------------------------------------------------------------- cta -- */
.cta { padding: 56px 0; }
.cta-inner {
  background: linear-gradient(135deg, var(--teal-700), var(--teal-500));
  border-radius: var(--radius-lg); padding: 48px; text-align: center; color: #fff;
  box-shadow: var(--shadow);
}
.cta-inner h2 { color: #fff; font-size: 28px; margin: 0 0 8px; }
.cta-inner p { color: rgba(255,255,255,.9); margin: 0 0 22px; }

/* --------------------------------------------------------------- catalog --- */
.catalog-head { padding: 44px 0 30px; background: var(--surface); border-bottom: 1px solid var(--border); }
.catalog-head h1 { font-size: 33px; margin: 0 0 16px; }
.catalog-search { display: flex; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--border-2); border-radius: 12px; padding: 6px 6px 6px 16px; max-width: 620px; box-shadow: var(--shadow-sm); }
body.rtl .catalog-search { padding: 6px 16px 6px 6px; }

.catalog-layout { display: grid; grid-template-columns: 240px 1fr; gap: 32px; padding: 32px 0 64px; align-items: start; }
.filters { position: sticky; top: 96px; max-height: calc(100vh - 120px); overflow-y: auto; overscroll-behavior: contain; display: flex; flex-direction: column; gap: 24px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-sm); }
.filters::-webkit-scrollbar { width: 8px; }
.filters::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }
.filter-group h3 { font-size: 12.5px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin: 0 0 10px; }
body.rtl .filter-group h3 { letter-spacing: 0; }
.filter { display: block; padding: 8px 12px; border-radius: var(--radius-sm); color: var(--teal-700); font-size: 14.5px; font-weight: 600; transition: background .12s, color .12s; }
.filter:hover { background: var(--teal-50); }
.filter.active { background: var(--orange); color: var(--ink); }

.results-count { color: var(--muted); margin: 0; font-size: 14.5px; }
.empty { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty h1 { color: var(--teal-700); }

.clear-filters { display: inline-block; margin-top: 6px; color: var(--orange-600); font-weight: 700; font-size: 13.5px; }
.clear-filters:hover { color: var(--orange); }

/* results toolbar: count + sort + view toggle */
.results-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.results-tools { display: flex; align-items: center; gap: 14px; }
.tools-label { font-size: 13px; color: var(--muted); font-weight: 700; }
.sort-toggle, .view-toggle { display: inline-flex; align-items: center; gap: 6px; }
.sort-toggle { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 4px 6px 4px 10px; }
body.rtl .sort-toggle { padding: 4px 10px 4px 6px; }
.seg { padding: 5px 12px; border-radius: 7px; font-size: 13.5px; font-weight: 700; color: var(--muted); }
.seg:hover { color: var(--teal-700); }
.seg.active { background: #fff; color: var(--teal-700); box-shadow: var(--shadow-sm); }
.view-toggle { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 4px; }
.vbtn { display: grid; place-items: center; width: 34px; height: 30px; border-radius: 7px; color: var(--muted); }
.vbtn svg { width: 18px; height: 18px; }
.vbtn:hover { color: var(--teal-700); }
.vbtn.active { background: var(--orange); color: var(--ink); }

/* list view */
.result-list { display: flex; flex-direction: column; gap: 12px; }
.list-row {
  display: flex; align-items: center; gap: 16px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 18px;
  box-shadow: var(--shadow-sm);
  transition: transform .12s, border-color .15s, box-shadow .15s;
}
.list-row:hover { transform: translateY(-2px); border-color: var(--border-2); box-shadow: var(--shadow); }
.row-icon { flex: none; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: var(--teal-50); color: var(--teal-600); }
.row-icon svg { width: 24px; height: 24px; }
.row-main { flex: 1; min-width: 0; }
.row-head { display: flex; align-items: center; gap: 10px; margin-bottom: 4px; }
.row-title { font-size: 17px; margin: 0; }
.row-summary { color: var(--muted); font-size: 14px; margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row-meta { flex: none; display: flex; flex-direction: column; align-items: flex-end; gap: 4px; font-size: 12.5px; color: var(--muted); }
body.rtl .row-meta { align-items: flex-start; }
.row-cat { font-weight: 700; color: var(--teal-700); }
.row-geom { display: inline-flex; align-items: center; gap: 5px; }
.row-geom svg { width: 13px; height: 13px; }
.row-arrow { flex: none; color: var(--orange); font-size: 22px; font-weight: 800; }

@media (max-width: 720px) {
  .row-meta { display: none; }
  .row-summary { white-space: normal; }
}

/* ---------------------------------------------------------------- detail --- */
.breadcrumb { padding: 20px 0 0; font-size: 13.5px; color: var(--muted); display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.breadcrumb a { color: var(--teal-600); }
.breadcrumb a:hover { color: var(--orange-600); }
.breadcrumb .sep { opacity: .5; }
.breadcrumb .current { color: var(--ink); font-weight: 600; }

.detail { display: grid; grid-template-columns: 1fr 320px; gap: 32px; padding: 22px 0 64px; align-items: start; }
.detail-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.detail-title { font-size: 33px; margin: 0 0 10px; }
.detail-summary { color: var(--muted); font-size: 17px; margin: 0 0 22px; }

.map-wrap { border: 1px solid var(--border-2); border-radius: var(--radius); overflow: hidden; background: var(--card); box-shadow: var(--shadow-sm); }
#map { height: 440px; width: 100%; background: #dfeae8; }
.map-note { padding: 10px 16px; font-size: 12.5px; color: var(--muted); border-top: 1px solid var(--border); }

.detail-block { margin-top: 36px; }
.detail-block h2 { font-size: 21px; margin: 0 0 14px; }
.detail-block p { color: var(--muted); }

.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table.fields { width: 100%; border-collapse: collapse; font-size: 14px; }
table.fields th, table.fields td { text-align: start; padding: 11px 14px; border-bottom: 1px solid var(--border); }
table.fields th { color: var(--teal-700); font-weight: 700; background: var(--surface); }
table.fields code { color: var(--teal-600); font-size: 13px; }
table.fields tr:last-child td { border-bottom: 0; }

.detail-side { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 96px; }
.side-card { border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); padding: 20px; box-shadow: var(--shadow-sm); }
.side-card h3 { margin: 0 0 14px; font-size: 16px; }
dl.meta { display: grid; grid-template-columns: auto 1fr; gap: 9px 14px; margin: 0; font-size: 14px; }
dl.meta dt { color: var(--muted); }
dl.meta dd { margin: 0; font-weight: 700; text-align: end; color: var(--ink); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { background: var(--teal-50); border: 1px solid var(--border); border-radius: 999px; padding: 4px 12px; font-size: 12.5px; color: var(--teal-700); }

/* ---------------------------------------------------------------- footer --- */
.site-footer { background: var(--teal-900); color: rgba(255,255,255,.82); margin-top: 20px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; padding: 52px 0 30px; }
.footer-tag { color: rgba(255,255,255,.7); font-size: 14px; max-width: 360px; margin: 16px 0 0; }
.footer-col h4 { color: #fff; font-size: 14.5px; margin: 0 0 12px; }
.footer-col a { display: block; color: rgba(255,255,255,.72); font-size: 14px; padding: 5px 0; }
.footer-col a:hover { color: var(--orange); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 20px 0 34px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.6); font-size: 13px; }

/* leaflet popup — light */
.leaflet-popup-content-wrapper { background: #fff; color: var(--ink); border-radius: 10px; box-shadow: var(--shadow); }
.leaflet-popup-tip { background: #fff; }
.leaflet-popup-content { font-family: var(--font); font-size: 13px; }

/* ------------------------------------------------------------ responsive --- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { display: none; }
}
@media (max-width: 900px) {
  .catalog-layout { grid-template-columns: 1fr; }
  .filters { position: static; max-height: none; overflow: visible; }
  .detail { grid-template-columns: 1fr; }
  .detail-side { position: static; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .main-nav { display: none; }
  .hero { padding: 48px 0 56px; }
  .hero-stats { gap: 22px; }
}