/* تعلم دز — shell موحّد للتنقل */
:root {
  --ldz-shell-h: 58px;
  --navy: #0b1829;
  --navy2: #152a42;
  --gold: #e8a020;
  --gold2: #f5c842;
  --accent: #2563eb;
  --shell-border: rgba(255, 255, 255, 0.12);
}

.ldz-skip {
  position: absolute;
  top: -48px;
  right: 12px;
  background: var(--accent);
  color: #fff;
  padding: 8px 14px;
  border-radius: 0 0 8px 8px;
  font-weight: 700;
  z-index: 500;
  text-decoration: none;
}
.ldz-skip:focus { top: 0; }

.ldz-site-header {
  position: sticky;
  top: 0;
  z-index: 400;
  background: var(--navy);
  border-bottom: 2px solid var(--gold);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
}

.ldz-header-inner {
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 14px;
  height: var(--ldz-shell-h);
  display: flex;
  align-items: center;
  gap: 10px;
}

.ldz-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
  text-decoration: none;
  color: #fff;
}
.ldz-logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--gold), var(--gold2));
  color: var(--navy);
  font-weight: 900;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ldz-logo-text {
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.1;
}
.ldz-logo-text span { color: var(--gold2); }

.ldz-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}
.ldz-nav-item {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.84rem;
  font-weight: 600;
  padding: 7px 11px;
  border-radius: 8px;
  text-decoration: none;
  transition: 0.15s;
  white-space: nowrap;
}
.ldz-nav-item:hover,
.ldz-nav-item.is-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.ldz-mega-wrap { position: relative; }
.ldz-mega-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  font: inherit;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.84rem;
  font-weight: 600;
  padding: 7px 11px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.ldz-mega-btn:hover,
.ldz-mega-wrap.open .ldz-mega-btn {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}
.ldz-mega-panel {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: min(920px, calc(100vw - 24px));
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.18);
  border: 1px solid #dbe3ef;
  padding: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.ldz-mega-wrap.open .ldz-mega-panel { display: grid; }
.ldz-mega-col h4 {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.ldz-mega-col h4 a { color: inherit; text-decoration: none; }
.ldz-mega-col h4 a:hover { color: var(--accent); }
.ldz-mega-col ul { list-style: none; margin: 0; padding: 0; }
.ldz-mega-col li a {
  display: block;
  padding: 5px 0;
  font-size: 0.78rem;
  font-weight: 600;
  color: #475569;
  text-decoration: none;
}
.ldz-mega-col li a:hover { color: var(--accent); }

.ldz-search {
  flex: 1;
  min-width: 0;
  max-width: 420px;
  position: relative;
}
.ldz-search form { display: flex; gap: 0; }
.ldz-search input {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--shell-border);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-radius: 10px 0 0 10px;
  padding: 8px 12px;
  font-size: 0.84rem;
  font-family: inherit;
}
.ldz-search input::placeholder { color: rgba(255, 255, 255, 0.45); }
.ldz-search input:focus {
  outline: 2px solid var(--gold2);
  background: rgba(255, 255, 255, 0.12);
}
.ldz-search button {
  border: none;
  background: linear-gradient(135deg, var(--gold), var(--gold2));
  color: var(--navy);
  font-weight: 800;
  padding: 0 14px;
  border-radius: 0 10px 10px 0;
  cursor: pointer;
  font-size: 0.82rem;
  font-family: inherit;
}
.ldz-search-results {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  left: 0;
  background: #fff;
  border-radius: 12px;
  border: 1px solid #dbe3ef;
  box-shadow: var(--shadow-lg, 0 16px 40px rgba(15, 23, 42, 0.12));
  max-height: 320px;
  overflow: auto;
  z-index: 50;
}
.ldz-search-results.open { display: block; }
.ldz-search-results a {
  display: block;
  padding: 10px 12px;
  border-bottom: 1px solid #f1f5f9;
  text-decoration: none;
  color: #0f172a;
  font-size: 0.8rem;
  font-weight: 600;
}
.ldz-search-results a:hover { background: #eff6ff; color: var(--accent); }
.ldz-search-results .meta { font-size: 0.7rem; color: #64748b; font-weight: 500; margin-top: 2px; }

.ldz-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.ldz-btn-ghost {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 7px 12px;
  border-radius: 9px;
  border: 1px solid var(--shell-border);
  text-decoration: none;
  white-space: nowrap;
}
.ldz-btn-ghost:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }
.ldz-btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold2));
  color: var(--navy);
  font-size: 0.8rem;
  font-weight: 800;
  padding: 8px 14px;
  border-radius: 9px;
  text-decoration: none;
  white-space: nowrap;
}
.ldz-btn-gold:hover { filter: brightness(1.05); transform: translateY(-1px); }

.ldz-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--shell-border);
  color: #fff;
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 1.1rem;
}

.ldz-mobile-drawer {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 450;
  background: rgba(11, 24, 41, 0.97);
  flex-direction: column;
  padding: 20px;
  overflow-y: auto;
}
.ldz-mobile-drawer.open { display: flex; }
.ldz-mobile-drawer .close {
  align-self: flex-end;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  margin-bottom: 12px;
}
.ldz-mobile-drawer a {
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  text-decoration: none;
}
.ldz-mobile-drawer .group-title {
  color: var(--gold2);
  font-size: 0.78rem;
  font-weight: 800;
  margin-top: 16px;
  margin-bottom: 4px;
}

.ldz-breadcrumb-bar {
  background: #fff;
  border-bottom: 1px solid #dbe3ef;
}
.ldz-breadcrumb-inner {
  max-width: 1480px;
  margin: 0 auto;
  padding: 10px 16px;
  font-size: 0.82rem;
  color: #64748b;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}
.ldz-breadcrumb-inner a { color: #64748b; text-decoration: none; }
.ldz-breadcrumb-inner a:hover { color: var(--accent); }
.ldz-breadcrumb-inner .sep { opacity: 0.5; }
.ldz-breadcrumb-inner .current { color: #334155; font-weight: 700; }

.ldz-site-footer {
  background: var(--navy);
  color: #fff;
  border-top: 2px solid var(--gold);
  margin-top: 32px;
  padding: 28px 16px 18px;
}
.ldz-footer-inner {
  max-width: 1480px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.ldz-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.ldz-footer-links a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.84rem;
  text-decoration: none;
}
.ldz-footer-links a:hover { color: #fff; }
.ldz-footer-copy {
  max-width: 1480px;
  margin: 18px auto 0;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.35);
}

.ldz-quick-start {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}
.ldz-quick-card {
  background: #fff;
  border: 1px solid #dbe3ef;
  border-radius: 14px;
  padding: 16px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
  transition: 0.2s;
}
.ldz-quick-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.12);
}
.ldz-quick-card .icon { font-size: 1.6rem; margin-bottom: 6px; }
.ldz-quick-card .label { font-weight: 800; font-size: 0.92rem; color: #0f172a; }
.ldz-quick-card .desc { font-size: 0.76rem; color: #64748b; margin-top: 4px; }

@media (max-width: 1024px) {
  .ldz-mega-panel { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ldz-quick-start { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .ldz-nav,
  .ldz-mega-wrap,
  .ldz-btn-ghost { display: none; }
  .ldz-search { max-width: none; order: 3; flex-basis: 100%; }
  .ldz-header-inner { flex-wrap: wrap; height: auto; padding: 10px 12px; gap: 8px; }
  :root { --ldz-shell-h: auto; }
  .ldz-menu-toggle { display: block; margin-right: auto; }
  .ldz-btn-gold { padding: 7px 10px; font-size: 0.75rem; }
  .ldz-quick-start { grid-template-columns: 1fr; }
}