:root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --success-color: #27ae60;
            --warning-color: #f39c12;
            --danger-color: #e74c3c;
        }
        
        body {
            background-color: #f8f9fa;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        .navbar {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .card {
            border: none;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease;
        }
        
        .card:hover {
            transform: translateY(-5px);
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--secondary-color), #2980b9);
            border: none;
            border-radius: 8px;
            padding: 10px 20px;
            transition: all 0.3s ease;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
        }
        
        .form-control {
            border-radius: 8px;
            border: 2px solid #e9ecef;
            transition: border-color 0.3s ease;
        }
        
        .form-control:focus {
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
        }
        
        .table {
            border-radius: 10px;
            overflow: hidden;
        }
        
        .badge {
            padding: 8px 12px;
            border-radius: 20px;
            font-size: 0.8em;
        }
        
        .stats-card {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border-radius: 15px;
            padding: 20px;
            margin-bottom: 20px;
        }
        
        .loading {
            display: none;
            text-align: center;
            padding: 20px;
        }
        
        .alert {
            border-radius: 10px;
            border: none;
        }
        
        .modal-content {
            border-radius: 15px;
            border: none;
        }
        
        .modal-header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            border-radius: 15px 15px 0 0;
        }
        
        .disponible {
            background-color: #d4edda;
            border-left: 4px solid var(--success-color);
        }
        
        .no-disponible {
            background-color: #f8d7da;
            border-left: 4px solid var(--danger-color);
        }


#chartSalones, #chartHoras {
    max-height: 400px;
}

tr[data-estado="aprobado"] {
    background-color: #e8f5e9;
}

tr[data-estado="desaprobado"] {
    background-color: #ffebee;
}