.login-container {
            display: flex;
            max-width: 1000px;
            width: 100%;
            background: white;
            border-radius: 15px;
            box-shadow: 0 15px 50px rgba(0, 0, 0, 0.12);
            overflow: hidden;
            min-height: 600px;
            animation: fadeIn 0.8s ease-out;
        }
        
        .login-left {
            flex: 1;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 50px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        
        .login-left::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
            transform: rotate(30deg);
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
        }
        
        .logo-icon {
            font-size: 2.8rem;
            animation: pulse 2.5s infinite;
        }
        
        .logo-text {
            font-size: 2.2rem;
            font-weight: 700;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        
        .welcome-text {
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
        }
        
        .welcome-text h1 {
            font-size: 2.5rem;
            margin-bottom: 15px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        
        .welcome-text p {
            font-size: 1.15rem;
            opacity: 0.92;
            max-width: 400px;
            line-height: 1.7;
        }
        
        .features {
            margin-top: 40px;
            position: relative;
            z-index: 2;
        }
        
        .feature {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 20px;
        }
        
        .feature i {
            font-size: 1.4rem;
            margin-top: 3px;
            color: rgba(255,255,255,0.9);
        }
        
        .feature div {
            flex: 1;
        }
        
        .feature h3 {
            font-size: 1.2rem;
            margin-bottom: 5px;
        }
        
        .feature p {
            font-size: 0.95rem;
            opacity: 0.85;
        }
        
        .login-right {
            flex: 1;
            padding: 60px 50px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        
        .login-header {
            margin-bottom: 40px;
            text-align: center;
        }
        
        .login-header h2 {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 10px;
        }
        
        .login-header p {
            color: var(--gray);
            font-size: 1.05rem;
        }
        
        .login-form {
            width: 100%;
            max-width: 400px;
            margin: 0 auto;
        }
        
        .input-with-icon {
            position: relative;
            display: flex;
            align-items: center;
        }
        
        .input-with-icon i {
            position: absolute;
            left: 15px;
            color: var(--gray);
            font-size: 1.1rem;
            z-index: 2;
        }
        
        .input-with-icon .form-control {
            padding-left: 45px;
        }
        
        .password-container {
            position: relative;
            width: 100%;
        }
        
        .password-toggle {
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--gray);
            cursor: pointer;
            font-size: 1.1rem;
            z-index: 3;
            padding: 5px;
            transition: color 0.3s ease;
        }
        
        .password-toggle:hover {
            color: var(--primary);
        }
        
        .password-toggle:focus {
            outline: none;
        }

        
        .options {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
        }
        
        .remember-me {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .remember-me input {
            width: 18px;
            height: 18px;
            accent-color: var(--primary);
        }
        
        .forgot-password {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .forgot-password:hover {
            text-decoration: underline;
            color: var(--primary-dark);
        }
        

        
        .divider {
            display: flex;
            align-items: center;
            margin: 25px 0;
            color: var(--gray);
        }
        
        .divider::before,
        .divider::after {
            content: '';
            flex: 1;
            height: 1px;
            background: var(--border);
        }
        
        .divider span {
            padding: 0 15px;
        }
        
        .social-login {
            display: flex;
            gap: 15px;
            margin-bottom: 30px;
        }
        
        .social-btn {
            flex: 1;
            padding: 12px;
            border-radius: 8px;
            border: 2px solid var(--border);
            background: white;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .social-btn:hover {
            border-color: var(--primary);
            background: #f8f9fc;
        }
        
        .social-btn i {
            font-size: 1.2rem;
        }
        
        .google-btn {
            color: #DB4437;
        }
        
        .facebook-btn {
            color: #4267B2;
        }
        
        .github-btn {
            color: #333;
        }
        
        .register-link {
            text-align: center;
            margin-top: 20px;
            color: var(--gray);
        }
        
        .register-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            margin-left: 5px;
            transition: all 0.3s;
        }
        
        .register-link a:hover {
            text-decoration: underline;
            color: var(--primary-dark);
        }
        
        .copyright {
            text-align: center;
            margin-top: 30px;
            color: var(--gray);
            font-size: 0.95rem;
        }
        
        @media (max-width: 900px) {
            .login-container {
                flex-direction: column;
                max-width: 500px;
            }
            
            .login-left {
                padding: 40px 30px;
            }
            
            .login-right {
                padding: 40px 30px;
            }
        }
        
        @media (max-width: 480px) {
            .login-container {
                margin: 20px;
            }
            
            .social-login {
                flex-direction: column;
            }
            
            .options {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
        }
        

        
        .error-message {
            color: var(--danger);
            font-size: 0.95rem;
            margin-top: 8px;
            display: none;
        }
        
        .form-group.error .error-message {
            display: block;
        }
        
        .form-group.error .form-control {
            border-color: var(--danger);
        }
        
        .success-message {
            background: var(--success);
            color: white;
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 20px;
            text-align: center;
            display: none;
        }