/* ═══════════════════════════════════════════════════════════════
   AeroDesk — Airline Management System
   Design: Alpine Frost × Aviation-Grade UI
   Fonts: Geist (UI) + Source Serif 4 (Display)
═══════════════════════════════════════════════════════════════ */

/* ── CSS Variables ── */
:root {
  --bg:          #EEF3F9;
  --bg-2:        #E3EDF7;
  --surface:     #FFFFFF;
  --surface-2:   #F4F8FC;
  --border:      #D0DCE8;
  --border-2:    #B8CCDE;

  --blue-deep:   #0A1929;
  --blue-mid:    #2E5090;
  --blue-light:  #A8C4E0;
  --blue-pale:   #E3EDF7;

  --text-primary:   #0A1929;
  --text-secondary: #4A6070;
  --text-muted:     #8AA0B0;

  --accent:      #2E5090;
  --accent-hover:#1E3A6E;
  --accent-light:#EBF1FA;

  --teal:        #0D7377;
  --teal-light:  #E0F4F4;
  --indigo:      #4A3F8C;
  --indigo-light:#EEEAF8;
  --amber:       #B45309;
  --amber-light: #FEF3C7;
  --green:       #166534;
  --green-light: #DCFCE7;
  --red:         #991B1B;
  --red-light:   #FEE2E2;

  --sidebar-w:   260px;
  --topbar-h:    60px;
  --radius:      10px;
  --radius-lg:   16px;
  --shadow-sm:   0 1px 3px rgba(10,25,41,0.08);
  --shadow-md:   0 4px 16px rgba(10,25,41,0.10);
  --shadow-lg:   0 12px 40px rgba(10,25,41,0.14);

  --transition:  0.2s cubic-bezier(0.4,0,0.2,1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; scroll-behavior: smooth; }
body {
  font-family: 'Geist', 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}
input, select, button, textarea { font-family: inherit; }
a { text-decoration: none; color: inherit; }

/* ══════════════════════════════════════════════════════════════
   SIDEBAR
══════════════════════════════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--blue-deep);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 100;
  transition: transform var(--transition);
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.logo-icon {
  width: 42px; height: 42px;
  background: rgba(255,255,255,0.1);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.logo-icon svg path, .logo-icon svg circle { stroke: #A8C4E0; }
.logo-icon svg path:first-child { fill: rgba(168,196,224,0.15); }
.logo-name {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}
.logo-sub {
  display: block;
  font-size: 0.7rem;
  color: var(--blue-light);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 1px;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.nav-section-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(168,196,224,0.5);
  padding: 12px 8px 6px;
  margin-top: 4px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  color: rgba(255,255,255,0.65);
  font-size: 0.875rem;
  font-weight: 450;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.nav-item svg { flex-shrink: 0; opacity: 0.8; }
.nav-item:hover {
  background: rgba(255,255,255,0.08);
  color: #FFFFFF;
}
.nav-item:hover svg { opacity: 1; }
.nav-item.active {
  background: var(--blue-mid);
  color: #FFFFFF;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(46,80,144,0.4);
}
.nav-item.active svg { opacity: 1; }

.nav-badge {
  margin-left: auto;
  background: var(--blue-mid);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 20px;
  min-width: 20px;
  text-align: center;
}
.nav-badge--warn { background: var(--amber); }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.flight-status-mini {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 6px;
}
.flight-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #6B7280;
}
.flight-dot.active {
  background: #22C55E;
  box-shadow: 0 0 0 3px rgba(34,197,94,0.25);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 3px rgba(34,197,94,0.25); }
  50% { box-shadow: 0 0 0 6px rgba(34,197,94,0.1); }
}
.sidebar-date {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.3);
}

/* ══════════════════════════════════════════════════════════════
   MOBILE TOPBAR
══════════════════════════════════════════════════════════════ */
.topbar-mobile {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  background: var(--blue-deep);
  z-index: 99;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  box-shadow: var(--shadow-md);
}
.menu-toggle {
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  display: flex;
  align-items: center;
}
.menu-toggle:hover { background: rgba(255,255,255,0.1); }
.topbar-logo {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}
.topbar-clock {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--blue-light);
  font-variant-numeric: tabular-nums;
}

/* ══════════════════════════════════════════════════════════════
   MAIN CONTENT
══════════════════════════════════════════════════════════════ */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  padding: 32px 36px;
  max-width: calc(100vw - var(--sidebar-w));
}

/* ── Module visibility ── */
.module { display: none; animation: fadeSlideIn 0.3s ease; }
.module.active { display: block; }
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Module Header ── */
.module-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
  flex-wrap: wrap;
}
.module-title {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--blue-deep);
  letter-spacing: -0.03em;
  line-height: 1.2;
}
.module-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 4px;
}
.header-clock {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  text-align: right;
  line-height: 1.6;
}

/* ══════════════════════════════════════════════════════════════
   DASHBOARD
══════════════════════════════════════════════════════════════ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}
.stat-card--blue::before  { background: var(--blue-mid); }
.stat-card--teal::before  { background: var(--teal); }
.stat-card--indigo::before{ background: var(--indigo); }
.stat-card--amber::before { background: var(--amber); }

.stat-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.stat-card--blue   .stat-icon { background: var(--accent-light); color: var(--blue-mid); }
.stat-card--teal   .stat-icon { background: var(--teal-light);   color: var(--teal); }
.stat-card--indigo .stat-icon { background: var(--indigo-light); color: var(--indigo); }
.stat-card--amber  .stat-icon { background: var(--amber-light);  color: var(--amber); }

.stat-body { flex: 1; }
.stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 3px;
  font-weight: 500;
}
.stat-trend {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--green);
  background: var(--green-light);
  padding: 3px 8px;
  border-radius: 20px;
  white-space: nowrap;
  align-self: flex-start;
}
.stat-trend.warn { color: var(--amber); background: var(--amber-light); }

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 20px;
  margin-bottom: 24px;
}
.dash-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.dash-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--border);
}
.dash-card-header h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}
.flights-table-wrap { overflow-x: auto; }
.flights-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
.flights-table th {
  padding: 10px 16px;
  text-align: left;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.flights-table td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}
.flights-table tr:last-child td { border-bottom: none; }
.flights-table tr:hover td { background: var(--surface-2); }

.activity-feed {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 280px;
  overflow-y: auto;
}
.activity-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 4px;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
}
.activity-item:last-child { border-bottom: none; }
.activity-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-top: 4px;
  flex-shrink: 0;
}
.activity-dot--blue   { background: var(--blue-mid); }
.activity-dot--teal   { background: var(--teal); }
.activity-dot--green  { background: #22C55E; }
.activity-dot--amber  { background: var(--amber); }
.activity-dot--indigo { background: var(--indigo); }
.activity-text { color: var(--text-secondary); line-height: 1.4; }
.activity-time { margin-left: auto; color: var(--text-muted); font-size: 0.72rem; white-space: nowrap; }
.activity-empty { color: var(--text-muted); font-size: 0.82rem; padding: 16px 4px; }

.quick-actions { margin-top: 4px; }
.section-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.qa-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
.qa-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.qa-btn svg { color: var(--blue-mid); }
.qa-btn:hover {
  background: var(--accent-light);
  border-color: var(--blue-mid);
  color: var(--blue-mid);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ══════════════════════════════════════════════════════════════
   FILTER BAR
══════════════════════════════════════════════════════════════ */
.filter-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.search-input {
  flex: 1;
  min-width: 200px;
  padding: 9px 14px 9px 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: 0.85rem;
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238AA0B0' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 11px center;
}
.search-input:focus {
  outline: none;
  border-color: var(--blue-mid);
  box-shadow: 0 0 0 3px rgba(46,80,144,0.12);
}
.filter-select {
  padding: 9px 32px 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: 0.85rem;
  color: var(--text-primary);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238AA0B0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  transition: border-color var(--transition);
}
.filter-select:focus { outline: none; border-color: var(--blue-mid); }

/* ══════════════════════════════════════════════════════════════
   DATA TABLE
══════════════════════════════════════════════════════════════ */
.table-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}
.data-table thead tr {
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.data-table th {
  padding: 12px 16px;
  text-align: left;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}
.data-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: var(--surface-2); }
.data-table tbody tr { transition: background var(--transition); }

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.empty-state-sm {
  text-align: center;
  padding: 20px;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.empty-state-card {
  background: var(--surface);
  border: 1px dashed var(--border-2);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  grid-column: 1 / -1;
}

/* ── Status Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
}
.badge::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
}
.badge--green   { background: var(--green-light);  color: var(--green); }
.badge--blue    { background: var(--accent-light);  color: var(--blue-mid); }
.badge--amber   { background: var(--amber-light);   color: var(--amber); }
.badge--red     { background: var(--red-light);     color: var(--red); }
.badge--indigo  { background: var(--indigo-light);  color: var(--indigo); }
.badge--teal    { background: var(--teal-light);    color: var(--teal); }
.badge--gray    { background: #F1F5F9; color: #64748B; }

/* ── Action Buttons in Table ── */
.action-btns { display: flex; gap: 6px; align-items: center; }
.btn-icon {
  width: 30px; height: 30px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.btn-icon:hover { background: var(--accent-light); border-color: var(--blue-mid); color: var(--blue-mid); }
.btn-icon--red:hover { background: var(--red-light); border-color: var(--red); color: var(--red); }
.btn-icon--green:hover { background: var(--green-light); border-color: var(--green); color: var(--green); }

/* ══════════════════════════════════════════════════════════════
   BOARDING MODULE
══════════════════════════════════════════════════════════════ */
.boarding-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.bstat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--shadow-sm);
}
.bstat-val {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--blue-mid);
  font-variant-numeric: tabular-nums;
}
.bstat-lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ══════════════════════════════════════════════════════════════
   PASSENGERS GRID
══════════════════════════════════════════════════════════════ */
.passengers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.passenger-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.passenger-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.passenger-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--blue-mid);
}
.pax-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.pax-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--accent-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: var(--blue-mid);
  flex-shrink: 0;
}
.pax-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}
.pax-passport {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.pax-card-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.pax-detail {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
}
.pax-detail span:first-child { color: var(--text-muted); }
.pax-detail span:last-child  { color: var(--text-secondary); font-weight: 500; }
.pax-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

/* Tier badges */
.tier-standard { background: #F1F5F9; color: #64748B; }
.tier-silver   { background: #F1F5F9; color: #64748B; }
.tier-gold     { background: #FEF3C7; color: #92400E; }
.tier-platinum { background: #EDE9FE; color: #5B21B6; }

/* ══════════════════════════════════════════════════════════════
   BAGGAGE MODULE
══════════════════════════════════════════════════════════════ */
.policy-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.policy-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--blue-mid);
}
.policy-card--business { border-top-color: var(--teal); }
.policy-card--first    { border-top-color: #B45309; }
.policy-class {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.policy-detail {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
}
.policy-detail:last-child { border-bottom: none; }
.policy-detail span { color: var(--text-muted); }
.policy-detail strong { color: var(--text-primary); font-weight: 600; }

/* ══════════════════════════════════════════════════════════════
   WAITLIST MODULE
══════════════════════════════════════════════════════════════ */
.waitlist-info-bar {
  background: var(--amber-light);
  border: 1px solid #FDE68A;
  border-radius: var(--radius);
  padding: 10px 16px;
  margin-bottom: 16px;
}
.winfo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--amber);
  font-weight: 500;
}

/* ══════════════════════════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════════════════════════ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  background: var(--blue-mid);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(46,80,144,0.3);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(46,80,144,0.4);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-ghost:hover { background: var(--surface-2); border-color: var(--border-2); }

.btn-sm { padding: 6px 12px; font-size: 0.78rem; }

.btn-danger {
  background: var(--red);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 7px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-danger:hover { background: #7F1D1D; }

/* ══════════════════════════════════════════════════════════════
   MODALS
══════════════════════════════════════════════════════════════ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,25,41,0.55);
  backdrop-filter: blur(4px);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}
.modal-overlay.open { display: flex; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--surface);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s cubic-bezier(0.34,1.56,0.64,1);
}
.modal-lg { max-width: 680px; }
.modal-bp { max-width: 480px; }
@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}
.modal-close {
  width: 30px; height: 30px;
  border-radius: 6px;
  border: none;
  background: var(--surface-2);
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
  line-height: 1;
}
.modal-close:hover { background: var(--red-light); color: var(--red); }

.modal-body { padding: 20px 24px; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px 20px;
  border-top: 1px solid var(--border);
}

/* ── Form Grid ── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group--full { grid-column: 1 / -1; }
.form-group label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}
.form-group input,
.form-group select {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  font-size: 0.85rem;
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--blue-mid);
  box-shadow: 0 0 0 3px rgba(46,80,144,0.12);
}
.input-readonly {
  background: var(--surface-2) !important;
  color: var(--text-muted) !important;
  cursor: default;
}

/* ══════════════════════════════════════════════════════════════
   BOARDING PASS CARD
══════════════════════════════════════════════════════════════ */
.boarding-pass {
  background: linear-gradient(135deg, var(--blue-deep) 0%, var(--blue-mid) 100%);
  border-radius: 16px;
  padding: 28px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.boarding-pass::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 180px; height: 180px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}
.boarding-pass::after {
  content: '';
  position: absolute;
  bottom: -60px; left: -30px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
}
.bp-airline {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 4px;
}
.bp-title {
  font-family: 'Source Serif 4', serif;
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 20px;
}
.bp-route {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.bp-city { text-align: center; }
.bp-code {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}
.bp-city-name { font-size: 0.72rem; color: var(--blue-light); margin-top: 2px; }
.bp-arrow {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--blue-light);
}
.bp-arrow::before, .bp-arrow::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(168,196,224,0.4);
}
.bp-divider {
  border: none;
  border-top: 1px dashed rgba(255,255,255,0.2);
  margin: 16px 0;
}
.bp-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.bp-detail-item { }
.bp-detail-label { font-size: 0.65rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue-light); }
.bp-detail-value { font-size: 0.95rem; font-weight: 600; margin-top: 2px; }
.bp-barcode {
  background: rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 12px;
  text-align: center;
  font-family: 'Courier New', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: var(--blue-light);
  margin-top: 4px;
}

/* ══════════════════════════════════════════════════════════════
   TOAST NOTIFICATIONS
══════════════════════════════════════════════════════════════ */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  background: var(--blue-deep);
  color: #fff;
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 0.84rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: all;
  animation: toastIn 0.3s cubic-bezier(0.34,1.56,0.64,1);
  max-width: 340px;
  border-left: 3px solid var(--blue-mid);
}
.toast--success { border-left-color: #22C55E; }
.toast--error   { border-left-color: var(--red); }
.toast--warn    { border-left-color: var(--amber); }
.toast-icon { font-size: 1rem; flex-shrink: 0; }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px) scale(0.95); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(20px); }
}

/* ══════════════════════════════════════════════════════════════
   SIDEBAR OVERLAY (mobile)
══════════════════════════════════════════════════════════════ */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,25,41,0.5);
  z-index: 99;
}

/* ══════════════════════════════════════════════════════════════
   SCROLLBAR
══════════════════════════════════════════════════════════════ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue-light); }

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════════ */
@media (max-width: 1200px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .dashboard-grid { grid-template-columns: 1fr; }
  .qa-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  .sidebar-overlay.open { display: block; }
  .topbar-mobile { display: flex; }
  .main-content {
    margin-left: 0;
    padding: 80px 16px 24px;
    max-width: 100vw;
  }
  .policy-cards { grid-template-columns: 1fr; }
  .boarding-stats { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .form-group--full { grid-column: 1; }
}

@media (max-width: 640px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .qa-grid { grid-template-columns: repeat(2, 1fr); }
  .module-header { flex-direction: column; align-items: flex-start; }
  .data-table { font-size: 0.78rem; }
  .data-table th, .data-table td { padding: 10px 10px; }
  .passengers-grid { grid-template-columns: 1fr; }
}

@media (max-width: 400px) {
  .stats-grid { grid-template-columns: 1fr; }
  .qa-grid { grid-template-columns: 1fr 1fr; }
}

/* ══════════════════════════════════════════════════════════════
   UTILITY
══════════════════════════════════════════════════════════════ */
.text-primary   { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted     { color: var(--text-muted); }
.font-mono      { font-family: 'Courier New', monospace; }
.font-bold      { font-weight: 700; }
.font-medium    { font-weight: 500; }