* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
           background-image: linear-gradient(135deg, #3a506b 0%, #5c677d 100%);
background-color: #3a506b;
            min-height: 100vh;
            display: flex;
            justify-content: center;
           /* align-items: center; */
            padding-top: 85px;
        }

        .login-container {
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            width: 400px;
            max-width: 400px;
            text-align: center;
        }

        .service-title {
            font-size: 28px;
            font-weight: bold;
                height: 55px;
            color: #333;
          
            background: linear-gradient(45deg, #667eea, #764ba2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .form-group {
            margin-bottom: 20px;
            text-align: left;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #333;
            font-weight: 500;
        }

        .form-group input {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #e1e8ed;
            border-radius: 8px;
            font-size: 16px;
            transition: border-color 0.3s ease;
        }

        .form-group input:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }

        .form-group input.error {
            border-color: #e74c3c;
            background-color: #fdf2f2;
        }

        .error-message {
            color: #e74c3c;
            font-size: 14px;
            margin-top: 5px;
           
            animation: fadeIn 0.3s ease;
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            margin-bottom: 25px;
            text-align: left;
        }

        .checkbox-group input[type="checkbox"] {
            width: auto;
            margin-right: 8px;
            transform: scale(1.2);
        }

        .checkbox-group label {
            margin-bottom: 0;
            color: #666;
            font-size: 14px;
        }

        .login-btn {
            width: 100%;
            padding: 12px;
           background-color: #3498db;
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .login-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }

        .login-btn:active {
            transform: translateY(0);
        }

        .success-message {
            background: #d4edda;
            color: #155724;
            padding: 12px;
            border-radius: 8px;
            margin-top: 20px;
           
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        @media (max-width: 480px) {
            .login-container {
                padding: 30px 20px;
                margin: 20px;
            }
            
            .service-title {
                font-size: 24px;
            }
        }
        
        
        
         /* 새로 추가되는 클래스들 */
        .success-container {
            text-align: center;
       
        }

        .success-text {
            color: #27ae60;
            font-size: 1rem;
            margin-bottom: 2rem;
            line-height: 1.5;
        }

        .button-group {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .webbox-btn {
            padding: 0.75rem 1.5rem;
            border: none;
            border-radius: 5px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .download-btn {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
        }

        .download-btn:hover {
            background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
            transform: translateY(-2px);
        }

        .execute-btn {
            background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
            color: white;
        }

        .execute-btn:hover {
            background: linear-gradient(135deg, #38a169 0%, #2f855a 100%);
            transform: translateY(-2px);
        }

        .hidden {
            display: none;
        }