:root {
  --primary: #0F2B5C;
  --primary-light: #1E3F73;
  --secondary: #4C9AFF;
  --accent: #E91E63;
  --success: #00B884;
  --warning: #FFB74D;
  --danger: #F05252;
  --purple: #7C5CF0;
  --gray-50: #F8FAFC;
  --gray-100: #F1F4F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;
  --sidebar-bg: #0F172A;
  --sidebar-hover: #1E293B;
  --radius: 12px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, system-ui, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font);
}

body {
  background: var(--gray-100);
  display: flex;
  height: 100vh;
  overflow: hidden;
  color: var(--gray-900);
}

::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

#adminApp {
  display: none;
  height: 100vh;
  width: 100%;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--gray-50);
}

.page-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px 32px 32px;
  position: relative;
}

.page {
  display: none;
  animation: slideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.page.active {
  display: block;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: white;
  border-radius: var(--radius);
  padding: 20px 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

.stat-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.stat-card .stat-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stat-card .stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: white;
}

.stat-card .stat-icon.blue {
  background: var(--secondary);
}

.stat-card .stat-icon.green {
  background: var(--success);
}

.stat-card .stat-icon.purple {
  background: var(--purple);
}

.stat-card .stat-icon.pink {
  background: var(--accent);
}

.stat-card .stat-number {
  font-size: 28px;
  font-weight: 800;
  color: var(--gray-900);
  margin-top: 8px;
}

.stat-card .stat-label {
  font-size: 14px;
  color: var(--gray-500);
  font-weight: 500;
}

.table-wrapper {
  background: white;
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.table-header h4 {
  font-weight: 700;
  font-size: 16px;
  color: var(--gray-900);
}

.table-header .filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.table-header .filters input,
.table-header .filters select {
  padding: 8px 14px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 13px;
  background: var(--gray-50);
  outline: none;
  transition: var(--transition);
}

.table-header .filters input:focus,
.table-header .filters select:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(76,154,255,0.1);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  border: none;
  padding: 8px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 2px 8px rgba(15,43,92,0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(15,43,92,0.3);
}

.btn-sm {
  padding: 4px 12px;
  font-size: 12px;
  border-radius: 6px;
}

.btn-success {
  background: var(--success);
  color: white;
  border: none;
}

.btn-success:hover {
  background: #009F6E;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,184,132,0.3);
}

.btn-danger {
  background: var(--danger);
  color: white;
  border: none;
}

.btn-danger:hover {
  background: #d43f3f;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(240,82,82,0.3);
}

.btn-warning {
  background: var(--warning);
  color: var(--gray-900);
  border: none;
}

.btn-warning:hover {
  background: #f5a623;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--gray-600);
  border: 1px solid var(--gray-200);
}

.btn-outline:hover {
  background: var(--gray-100);
}

.btn-ghost {
  background: transparent;
  color: var(--secondary);
  border: 1px solid var(--secondary);
}

.btn-ghost:hover {
  background: var(--secondary);
  color: white;
  transform: translateY(-2px);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

table th {
  text-align: left;
  padding: 10px 8px;
  font-weight: 600;
  color: var(--gray-500);
  border-bottom: 1px solid var(--gray-200);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

table td {
  padding: 12px 8px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
}

table tr:last-child td {
  border-bottom: none;
}

table tr:hover td {
  background: var(--gray-50);
}

.status-badge {
  padding: 2px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  display: inline-block;
}

.status-badge.active {
  background: rgba(0,184,132,0.1);
  color: var(--success);
}

.status-badge.inactive {
  background: rgba(240,82,82,0.1);
  color: var(--danger);
}

.status-badge.failed {
  background: rgba(240,82,82,0.15);
  color: var(--danger);
}

.status-badge.pending {
  background: rgba(255,183,77,0.15);
  color: #b7791f;
}

.status-badge.confirmed {
  background: rgba(76,154,255,0.1);
  color: var(--secondary);
}

.status-badge.canceled {
  background: rgba(240,82,82,0.08);
  color: var(--danger);
}

.status-badge.paid {
  background: rgba(0,184,132,0.1);
  color: var(--success);
}

.status-badge.pending_payment {
  background: rgba(255,183,77,0.15);
  color: #b7791f;
}

.action-icons {
  display: flex;
  gap: 6px;
}

.action-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--gray-400);
  transition: var(--transition);
  border-radius: 8px;
  padding: 0;
}

.action-icon:hover {
  color: var(--secondary);
  background: rgba(76,154,255,0.08);
}

.action-icon.danger:hover {
  color: var(--danger);
  background: rgba(240,82,82,0.08);
}

.action-icon i {
  pointer-events: none;
  font-size: 15px;
}

.chart-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.chart-box {
  background: white;
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--gray-200);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.chart-icon {
  font-size: 48px;
  color: var(--gray-300);
  margin-bottom: 12px;
}

.chart-box h5 {
  font-weight: 600;
  color: var(--gray-600);
  margin-bottom: 4px;
}

@media (max-width: 768px) {
  .page-content {
    padding: 16px;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .chart-grid {
    grid-template-columns: 1fr;
  }
  .table-wrapper {
    padding: 16px;
    overflow-x: auto;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}