body { font-family: 'Segoe UI', sans-serif; margin: 0; background: #f5f7fa; color: #333; }
header { background: #2563eb; color: #fff; padding: 12px 20px; display: flex; justify-content: space-between; align-items: center; }
header nav a { color: #fff; margin-left: 15px; text-decoration: none; }
header nav a:hover { text-decoration: underline; }
.container { max-width: 1200px; margin: 20px auto; padding: 0 20px; }
.card { background: #fff; border-radius: 8px; padding: 20px; margin-bottom: 20px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
h1, h2 { color: #2563eb; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 10px; border-bottom: 1px solid #eee; text-align: left; }
.table th { background: #f1f5f9; }
.btn { padding: 8px 16px; border: none; border-radius: 4px; cursor: pointer; }
.btn-primary { background: #2563eb; color: #fff; }
.btn-success { background: #16a34a; color: #fff; }
.btn-danger { background: #dc2626; color: #fff; }
.btn-sm { padding: 4px 8px; font-size: 12px; }
.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 8px; border: 1px solid #ddd; border-radius: 4px; }
.alert { padding: 12px; border-radius: 4px; margin-bottom: 15px; }
.alert-success { background: #dcfce7; color: #166534; }
.alert-error { background: #fee2e2; color: #991b1b; }
footer { text-align: center; padding: 20px; color: #666; font-size: 12px; }
/* Мобильная адаптация */
@media (max-width: 768px) {
  header { flex-direction: column; align-items: flex-start; gap: 10px; }
  header nav { display: flex; flex-wrap: wrap; gap: 8px; }
  header nav a { margin-left: 0; font-size: 13px; }
  .container { padding: 0 12px; margin: 12px auto; }
  .card { padding: 16px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-card { padding: 12px; }
  .stat-card .stat-number { font-size: 20px; }
  .stat-card i { font-size: 20px; }
  .table { font-size: 12px; }
  .table th, .table td { padding: 6px 8px; }
  .filter-bar { flex-direction: column; }
  .filter-bar .form-group { min-width: 100%; }
  h1 { font-size: 20px; }
  h2 { font-size: 16px; }
  .form-group input, .form-group select, .form-group textarea { font-size: 14px; }
  .modal-content { width: 95%; padding: 16px; }
  div[style*="grid-template-columns:repeat(5,1fr)"] { grid-template-columns: 1fr !important; }
  div[style*="grid-template-columns:1fr 1fr"] { grid-template-columns: 1fr !important; }
  div[style*="grid-template-columns:repeat(4,1fr)"] { grid-template-columns: 1fr 1fr !important; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  header .logo { font-size: 16px; }
  .btn { padding: 6px 12px; font-size: 13px; }
}