*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  overflow: hidden;
  font-family: "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
  background: #f0f4fa;
  color: #1f2937;
  -webkit-font-smoothing: antialiased;
}

body { display: flex; height: 100dvh; }

.overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 900;
  background: rgba(15, 23, 42, .45);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

.overlay.open { display: block; }

.drawer {
  width: 256px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-right: 1px solid #e9ecf2;
  overflow-y: auto;
  overscroll-behavior: contain;
  transition: transform .28s cubic-bezier(.4,0,.2,1);
}

.drawer-brand {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 16px 20px 12px;
  text-align: center;
  background: inherit;
  border-bottom: 1px solid #f0f1f4;
}

.drawer-logo {
  width: 64px;
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, .12);
  margin-bottom: 8px;
}

.drawer-welcome {
  font-size: 14px;
  color: #475569;
  margin-bottom: 2px;
}

.drawer-welcome strong { color: #2563eb; }

.drawer-version {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: #94a3b8;
  margin-top: 2px;
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  padding: 12px 10px 18px;
  flex: 1;
}

.nav-group {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-top: 18px;
}

.nav-group:first-of-type,
.nav-group--first {
  margin-top: 6px;
}

.nav-group-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px 8px;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: #2563eb;
}

.nav-group-label::before {
  content: "";
  flex: 0 0 auto;
  width: 3px;
  height: 12px;
  border-radius: 2px;
  background: linear-gradient(180deg, #2563eb, #6366f1);
}

.nav-group-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(37, 99, 235, .28), rgba(37, 99, 235, 0));
}

.drawer-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  color: #334155;
  transition: background .15s, color .15s;
  min-height: 40px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.drawer-nav a i {
  flex: 0 0 auto;
  text-align: center;
  font-size: 15px;
  color: #7b879b;
  transition: color .15s;
}

.drawer-nav a span {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.drawer-nav a:hover { background: #f1f5fb; color: #1e3a5f; }
.drawer-nav a:hover i { color: #1e3a5f; }

.drawer-nav a.active {
  background: linear-gradient(135deg, #1e3a5f, #2563eb);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 3px 12px rgba(37, 99, 235, .22);
}

.drawer-nav a.active i { color: #fff; }

.drawer-nav a.nav-cta {
  justify-content: center;
  min-height: 44px;
  font-weight: 600;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: #fff;
  box-shadow: 0 3px 12px rgba(34, 197, 94, .22);
}

.drawer-nav a.nav-cta span { flex: 0 0 auto; }
.drawer-nav a.nav-cta i { color: #fff; }
.drawer-nav a.nav-cta:hover { filter: brightness(1.06); color: #fff; }

.stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 12px 16px 0;
  padding-top: calc(12px + env(safe-area-inset-top, 0px));
  overflow: hidden;
}

.bar {
  display: flex;
  align-items: center;
  height: 50px;
  padding: 0 14px;
  border-radius: 12px;
  background: linear-gradient(135deg, #1e3a5f, #2563eb);
  box-shadow: 0 4px 16px rgba(37, 99, 235, .18);
  flex-shrink: 0;
}

.bar-hamburger {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 8px;
  background: rgba(255,255,255,.1);
  color: rgba(255,255,255,.85);
  font-size: 15px;
  cursor: pointer;
  transition: background .15s;
  flex-shrink: 0;
  margin-right: 12px;
}

.bar-hamburger:hover { background: rgba(255,255,255,.2); color: #fff; }

.bar-title {
  flex: 1;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.region-badge {
  display: inline-block;
  padding: 4px 10px;
  margin: 0 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.6px;
  color: #fff;
  background: #2563eb;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.region-badge[data-region="alex"] {
  background: linear-gradient(135deg, #7c3aed, #a855f7);
}
.region-badge[data-region="cairo"] {
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
}

body.region-alex .stage-frame {
  box-shadow: inset 0 0 0 3px rgba(124, 58, 237, 0.35);
}
body.region-alex .drawer {
  border-right: 2px solid rgba(124, 58, 237, 0.55);
}
body.region-alex .bar {
  border-bottom: 2px solid rgba(124, 58, 237, 0.55);
}

.bar-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.1);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s;
  white-space: nowrap;
}

.bar-btn:hover { background: rgba(255,255,255,.22); color: #fff; }
.bar-btn:active { transform: translateY(1px); }

.bar-btn-logout {
  background: #dc2626;
  border-color: #dc2626;
  color: #fff;
}

.bar-btn-logout:hover {
  background: #b91c1c;
  border-color: #b91c1c;
  color: #fff;
}

.stage-frame {
  flex: 1;
  width: 100%;
  border: none;
  margin-top: 12px;
  border-radius: 0;
  background: transparent;
}

body.dark-mode { background: #0c1120; color: #e2e8f0; }

body.dark-mode .drawer {
  background: #111827;
  border-right-color: #1e293b;
}

body.dark-mode .drawer-brand { border-bottom-color: #1e293b; }
body.dark-mode .drawer-welcome { color: #94a3b8; }
body.dark-mode .drawer-welcome strong { color: #93c5fd; }
body.dark-mode .drawer-version { color: #475569; }

body.dark-mode .nav-group-label { color: #93c5fd; }

body.dark-mode .nav-group-label::before {
  background: linear-gradient(180deg, #60a5fa, #818cf8);
}

body.dark-mode .nav-group-label::after {
  background: linear-gradient(90deg, rgba(147, 197, 253, .3), rgba(147, 197, 253, 0));
}
body.dark-mode .drawer-nav a { color: #cbd5e1; }
body.dark-mode .drawer-nav a i { color: #94a3b8; }
body.dark-mode .drawer-nav a:hover { background: #1e293b; color: #fff; }
body.dark-mode .drawer-nav a:hover i { color: #fff; }

body.dark-mode .drawer-nav a.active {
  background: linear-gradient(135deg, #1a2744, #1e3a5f);
}

body.dark-mode .bar {
  background: linear-gradient(135deg, #111827, #1a2744);
  box-shadow: 0 4px 16px rgba(0,0,0,.3);
}

body.dark-mode .bar-hamburger { background: rgba(255,255,255,.06); color: rgba(255,255,255,.7); }
body.dark-mode .bar-hamburger:hover { background: rgba(255,255,255,.12); color: #fff; }

body.dark-mode .bar-btn {
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.08);
  color: #e2e8f0;
}
body.dark-mode .bar-btn:hover { background: rgba(255,255,255,.12); }

body.dark-mode .bar-btn-logout {
  background: #dc2626;
  border-color: #dc2626;
  color: #fff;
}
body.dark-mode .bar-btn-logout:hover {
  background: #b91c1c;
  border-color: #b91c1c;
}

@media (min-width: 769px) {
  .drawer { position: relative; }
  .drawer.collapsed { width: 0; padding: 0; overflow: hidden; border: none; }
}

@media (max-width: 768px) {
  .drawer {
    position: fixed;
    top: 0; left: 0;
    height: 100dvh;
    width: 280px;
    max-width: 85vw;
    z-index: 1000;
    transform: translateX(-100%);
    box-shadow: 6px 0 24px rgba(0,0,0,.18);
    padding-top: env(safe-area-inset-top, 0px);
  }

  .drawer.open { transform: translateX(0); }

  body.dark-mode .drawer { background: #111827; }

  .stage {
    width: 100%;
    padding: 8px 10px 0;
    padding-top: calc(8px + env(safe-area-inset-top, 0px));
  }

  .bar { height: 48px; padding: 0 10px; border-radius: 10px; }
  .bar-title { display: none; }
  .bar-btn { padding: 6px 10px; font-size: 12px; }
  .logout-label { display: none; }

  .stage-frame { margin-top: 8px; }
}

@media (max-width: 480px) {
  .bar-right { gap: 6px; }
  .bar-btn { padding: 6px 8px; font-size: 11px; }
}