:root {
            --primary-color: #4e73df;
            --secondary-color: #6f42c1;
            --success-color: #1cc88a;
            --danger-color: #e74a3b;
            --warning-color: #f6c23e;
        }
        
        body {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        .auth-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .auth-container:hover {
            transform: translateY(-5px);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
        }
        
        .card-header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            font-weight: 600;
            border: none;
        }
        
        .form-control {
            border: 2px solid #e3e6f0;
            border-radius: 10px;
            padding: 12px 15px;
            transition: all 0.3s ease;
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(78, 115, 223, 0.25);
            transform: scale(1.02);
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border: none;
            border-radius: 10px;
            padding: 12px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(78, 115, 223, 0.4);
        }
        
        .alert {
            border-radius: 10px;
            border: none;
            font-weight: 500;
        }
        
        .password-strength {
            height: 5px;
            border-radius: 5px;
            margin-top: 5px;
            transition: all 0.3s ease;
        }
        
        /* Animations */
        .animate-fade-in {
            animation: fadeIn 0.6s ease-in;
        }
        
        .animate-slide-up {
            animation: slideUp 0.8s ease-out;
        }
        
        .animate-bounce-in {
            animation: bounceIn 0.6s ease-out;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        @keyframes slideUp {
            from { 
                opacity: 0;
                transform: translateY(30px);
            }
            to { 
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes bounceIn {
            0% { transform: scale(0.9); opacity: 0; }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); opacity: 1; }
        }
/* =========Login========= */