/* =====================================================================
   3T AdZone — Responsive Rules + Admin Chrome + Header/Footer/Nav
   ===================================================================== */

/* ---- Site Header — Premium: تدرّج غني + سلوك Glass عند التمرير ---- */
.site-header {
  position: sticky; top: 0; z-index: 200;
  background: linear-gradient(135deg, var(--color-primary) 0%, color-mix(in srgb, var(--color-primary) 82%, #052436) 100%);
  color: #fff;
  box-shadow: var(--shadow-md);
  transition: box-shadow .25s ease, backdrop-filter .25s ease, background .25s ease;
}
.site-header.is-scrolled {
  box-shadow: var(--shadow-lg);
  background: color-mix(in srgb, var(--color-primary) 92%, transparent);
}
@supports (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px)) {
  .site-header.is-scrolled { backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
}
.site-header .header-inner { max-width: 1240px; margin: 0 auto; padding: 12px var(--space-5); display: flex; align-items: center; gap: var(--space-6); }
.site-header .brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; transition: opacity .15s ease; }
.site-header .brand:hover { opacity: .88; }
.site-header .brand img { height: 40px; width: auto; }
.site-header .brand .brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.site-header .brand .brand-text .name { font-weight: 800; font-size: 16px; }
.site-header .brand .brand-text .tagline { font-size: 10px; opacity: .85; }
.site-header nav.main-nav { display: flex; align-items: center; gap: var(--space-5); flex: 1; }
.site-header nav.main-nav a { font-size: var(--text-sm); font-weight: 600; opacity: .92; white-space: nowrap; position: relative; transition: opacity .15s ease; }
.site-header nav.main-nav a::after {
  content: ''; position: absolute; bottom: -6px; inset-inline-start: 0; width: 0; height: 2px;
  background: var(--color-secondary); border-radius: 2px; transition: width .2s ease;
}
.site-header nav.main-nav a:hover { opacity: 1; }
.site-header nav.main-nav a:hover::after { width: 100%; }
.site-header .header-search { flex: 1; max-width: 420px; }
.site-header .header-search input {
  width: 100%; padding: 9px 14px; border-radius: var(--radius-full); border: 1px solid transparent;
  font-size: var(--text-sm); background: rgba(255,255,255,.14); color: #fff;
  transition: background .2s ease, box-shadow .2s ease;
}
.site-header .header-search input::placeholder { color: rgba(255,255,255,.7); }
.site-header .header-search input:focus {
  background: #fff; color: var(--color-text);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-secondary) 40%, transparent);
}
.site-header .header-actions { display: flex; align-items: center; gap: var(--space-3); flex-shrink: 0; }
.site-header .icon-btn {
  width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.12); border: none; color: #fff; cursor: pointer; position: relative;
  transition: background .18s ease, transform .18s ease, box-shadow .18s ease;
}
.site-header .icon-btn:hover {
  background: rgba(255,255,255,.22); transform: translateY(-2px);
  box-shadow: 0 4px 14px -2px color-mix(in srgb, var(--color-secondary) 45%, transparent);
}
.site-header .icon-btn .dot {
  position: absolute; top: 4px; inset-inline-end: 4px; width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-secondary); border: 1.5px solid var(--color-primary);
  animation: hero3tPulse 2.4s ease-in-out infinite;
}
.mobile-nav-toggle { display: none; }

/* ---- Bottom Mobile Nav ---- */
.mobile-bottom-nav {
  display: none; position: fixed; bottom: 0; inset-inline: 0; z-index: 200;
  background: var(--surface-elevated); border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 16px rgba(0,0,0,.06);
  padding: 6px var(--space-2) calc(6px + env(safe-area-inset-bottom));
}
.mobile-bottom-nav .row { display: flex; justify-content: space-around; }
.mobile-bottom-nav a { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 10px; font-weight: 600; color: var(--color-muted); padding: 4px 8px; border-radius: var(--radius-md); transition: color .15s ease, transform .15s ease; }
.mobile-bottom-nav a.active, .mobile-bottom-nav a:hover { color: var(--color-secondary); }
.mobile-bottom-nav a:active { transform: scale(0.92); }
.mobile-bottom-nav a.active svg { filter: drop-shadow(0 0 4px color-mix(in srgb, var(--color-secondary) 55%, transparent)); }
.mobile-bottom-nav svg { width: 20px; height: 20px; transition: filter .15s ease; }

/* ---- Footer ---- */
.site-footer {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--color-primary) 0%, color-mix(in srgb, var(--color-primary) 78%, #051a29) 100%);
  color: rgba(255,255,255,.85); margin-top: var(--space-16);
}
.site-footer::before {
  content: ''; position: absolute; top: 0; inset-inline: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-secondary), transparent);
  opacity: .6;
}
.site-footer .footer-inner { position: relative; z-index: 1; max-width: 1240px; margin: 0 auto; padding: var(--space-10) var(--space-5) var(--space-6); display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-8); }
.site-footer h4 { color: #fff; font-size: var(--text-sm); margin-bottom: var(--space-3); position: relative; display: inline-block; }
.site-footer h4::after { content: ''; position: absolute; bottom: -6px; inset-inline-start: 0; width: 24px; height: 2px; background: var(--color-secondary); border-radius: 2px; }
.site-footer a { font-size: var(--text-sm); color: rgba(255,255,255,.72); display: block; margin-bottom: 8px; transition: color .15s ease, transform .15s ease; }
.site-footer a:hover { color: #fff; transform: translateX(-3px); }
[dir="rtl"] .site-footer a:hover { transform: translateX(3px); }
.site-footer .footer-brand img { height: 36px; margin-bottom: var(--space-2); }
.site-footer .footer-bottom { position: relative; z-index: 1; border-top: 1px solid rgba(255,255,255,.15); padding: var(--space-4) var(--space-5); text-align: center; font-size: var(--text-xs); opacity: .7; }

/* ---- Admin Chrome (Sidebar + Topbar) ---- */
.admin-shell { display: grid; grid-template-columns: 240px 1fr; min-height: calc(100vh - 64px); }
.admin-sidebar {
  background: linear-gradient(180deg, var(--color-primary) 0%, color-mix(in srgb, var(--color-primary) 80%, #051a29) 100%);
  color: rgba(255,255,255,.85); padding: var(--space-5) var(--space-3);
  position: sticky; top: 64px; height: calc(100vh - 64px); overflow-y: auto;
  box-shadow: inset -1px 0 0 rgba(255,255,255,.06);
}
.admin-sidebar .group-label { font-size: 10px; text-transform: uppercase; letter-spacing: .06em; opacity: .55; padding: var(--space-3) var(--space-2) var(--space-1); }
.admin-sidebar a { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: var(--radius-md); font-size: var(--text-sm); font-weight: 600; margin-bottom: 2px; position: relative; transition: background .15s ease, transform .15s ease; }
.admin-sidebar a:hover { background: rgba(255,255,255,.08); transform: translateX(-2px); }
[dir="rtl"] .admin-sidebar a:hover { transform: translateX(2px); }
.admin-sidebar a.active { background: rgba(255,255,255,.16); color: #fff; }
.admin-sidebar a.active::before {
  content: ''; position: absolute; inset-inline-start: 0; top: 50%; transform: translateY(-50%);
  width: 3px; height: 60%; background: var(--color-secondary); border-radius: 0 3px 3px 0;
  box-shadow: 0 0 8px color-mix(in srgb, var(--color-secondary) 60%, transparent);
}
[dir="rtl"] .admin-sidebar a.active::before { border-radius: 3px 0 0 3px; }
.admin-main { padding: var(--space-6); min-width: 0; }
.admin-kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--space-4); margin-bottom: var(--space-6); }
.kpi-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-5); position: relative; overflow: hidden; transition: transform .18s ease, box-shadow .18s ease; }
.kpi-card::before { content: ''; position: absolute; top: 0; inset-inline: 0; height: 3px; background: linear-gradient(90deg, var(--color-primary), var(--color-secondary)); opacity: .8; }
.kpi-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.kpi-card .label { font-size: var(--text-xs); color: var(--color-muted); font-weight: 600; }
.kpi-card .value { font-size: 30px; font-weight: 800; margin-top: 4px; color: var(--color-text); }
.kpi-card .trend { font-size: 11px; margin-top: 4px; }

/* =====================================================================
   Responsive breakpoints
   ===================================================================== */
@media (max-width: 1024px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
  .site-footer .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .site-header .main-nav { display: none; }
  .site-header .header-search { display: none; }
  .mobile-nav-toggle { display: flex; }
}

@media (max-width: 768px) {
  body { padding-bottom: 62px; } /* مساحة للـbottom nav */
  .mobile-bottom-nav { display: block; }
  .site-footer .footer-inner { grid-template-columns: 1fr; text-align: center; }
  h1 { font-size: var(--text-2xl); }
  .admin-main { padding: var(--space-4); }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-3); }
  .card { padding: var(--space-4); }
}