* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background: linear-gradient(135deg, #6e8efb, #a777e3);
            padding: 20px;
        }
        
        .login-container {
            width: 100%;
            max-width: 440px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 16px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
            overflow: hidden;
            animation: fadeIn 0.5s ease-out;
        }
        
        .login-header {
            background: linear-gradient(to right, #6e8efb, #a777e3);
            color: white;
            padding: 30px 20px;
            text-align: center;
        }
        
        .login-header h2 {
            font-weight: 600;
            font-size: 28px;
            margin-bottom: 10px;
        }
        
        .login-header p {
            opacity: 0.9;
            font-size: 16px;
        }
        
        .login-form {
            padding: 30px;
        }
        
        .form-group {
            margin-bottom: 20px;
            position: relative;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: #333;
            font-size: 14px;
        }
        
        .input-with-icon {
            position: relative;
        }
        
        .input-with-icon i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #6e8efb;
        }
        
        .input-with-icon input {
            width: 100%;
            padding: 14px 20px 14px 45px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 16px;
            transition: all 0.3s;
        }
        
        .input-with-icon input:focus {
            outline: none;
            border-color: #6e8efb;
            box-shadow: 0 0 0 3px rgba(110, 142, 251, 0.2);
        }
        
        .error-message {
            color: #e74c3c;
            font-size: 14px;
            margin-top: 5px;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .error-message.hidden {
            display: none;
        }
        
        .btn-login {
            width: 100%;
            padding: 14px;
            background: linear-gradient(to right, #6e8efb, #a777e3);
            border: none;
            border-radius: 8px;
            color: white;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 4px 10px rgba(110, 142, 251, 0.4);
        }
        
        .btn-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(110, 142, 251, 0.5);
        }
        
        .btn-login:active {
            transform: translateY(0);
        }
        
        .form-footer {
            text-align: center;
            margin-top: 25px;
            font-size: 14px;
            color: #666;
        }
        
        .form-footer a {
            color: #6e8efb;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.2s;
        }
        
        .form-footer a:hover {
            color: #a777e3;
            text-decoration: underline;
        }
        
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @media (max-width: 480px) {
            .login-container {
                border-radius: 12px;
            }
            
            .login-header {
                padding: 25px 15px;
            }
            
            .login-form {
                padding: 25px 20px;
            }
        }