:root {
            --primary: #4361ee;
            --primary-dark: #3a56d4;
            --secondary: #8338ec;
            --success: #38b000;
            --warning: #ffbe0b;
            --danger: #ff006e;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --light-gray: #e9ecef;
            --border-radius: 12px;
            --shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
            --premium-gradient: linear-gradient(135deg, #8338ec, #3a86ff);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #f5f7ff 0%, #f0f2f5 100%);
            color: var(--dark);
            line-height: 1.6;
            min-height: 100vh;
            padding: 20px;
        }
        
        .container {
            max-width: 1400px;
            margin: 0 auto;
        }
        
        /* Premium Header */
        .premium-header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: white;
            padding: 30px;
            border-radius: var(--border-radius);
            margin-bottom: 30px;
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
        }
        
        .premium-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--premium-gradient);
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .logo-icon {
            background: var(--premium-gradient);
            width: 50px;
            height: 50px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }
        
        .logo-text h1 {
            font-size: 2.2rem;
            font-weight: 800;
            background: var(--premium-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .premium-tag {
            background: var(--premium-gradient);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
            display: inline-block;
            margin-top: 5px;
        }
        
        /* Main Layout */
        .main-layout {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 30px;
            margin-bottom: 40px;
        }
        
        @media (max-width: 1024px) {
            .main-layout {
                grid-template-columns: 1fr;
            }
        }
        
        /* Premium Cards */
        .premium-card {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            padding: 30px;
            transition: all 0.3s ease;
            border: 1px solid rgba(0, 0, 0, 0.05);
            height: fit-content;
        }
        
        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--light-gray);
        }
        
        .card-title {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--dark);
        }
        
        .card-title i {
            color: var(--primary);
            font-size: 1.3rem;
        }
        
        /* Input Section */
        .input-section {
            margin-bottom: 25px;
        }
        
        .url-input-group {
            display: flex;
            gap: 12px;
            margin-bottom: 20px;
        }
        
        .url-input-group input {
            flex: 1;
            padding: 16px 20px;
            border: 2px solid var(--light-gray);
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: all 0.3s ease;
            background: white;
        }
        
        .url-input-group input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
        }
        
        /* Tabs */
        .premium-tabs {
            display: flex;
            border-bottom: 2px solid var(--light-gray);
            margin-bottom: 25px;
            flex-wrap: wrap;
        }
        
        .tab-btn {
            padding: 14px 24px;
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--gray);
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .tab-btn.active {
            color: var(--primary);
        }
        
        .tab-btn.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 3px 3px 0 0;
        }
        
        .tab-btn.premium-locked {
            opacity: 0.6;
        }
        
        .tab-btn.premium-locked::before {
            content: 'PREMIUM';
            position: absolute;
            top: 5px;
            right: 5px;
            background: var(--premium-gradient);
            color: white;
            font-size: 0.6rem;
            padding: 2px 8px;
            border-radius: 10px;
            font-weight: 700;
        }
        
        .tab-content {
            display: none;
        }
        
        .tab-content.active {
            display: block;
        }
        
        /* Premium Buttons */
        .premium-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 16px 28px;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            white-space: nowrap;
        }
        
        .premium-btn:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(67, 97, 238, 0.2);
        }
        
        .premium-btn:disabled {
            opacity: 0.7;
            cursor: not-allowed;
        }
        
        .premium-btn i {
            font-size: 1.1rem;
        }
        
        .premium-btn-success {
            background: linear-gradient(135deg, var(--success), #2d9100);
        }
        
        .premium-btn-danger {
            background: linear-gradient(135deg, var(--danger), #e00063);
        }
        
        .premium-btn-warning {
            background: linear-gradient(135deg, var(--warning), #e6a900);
            color: var(--dark);
        }
        
        /* Stats Grid */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 25px;
        }
        
        .stat-card {
            background: linear-gradient(135deg, #f8f9ff, #f0f2ff);
            padding: 20px;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--primary);
            transition: all 0.3s ease;
        }
        
        .stat-card:hover {
            transform: translateY(-3px);
        }
        
        .stat-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }
        
        .stat-label {
            font-size: 0.9rem;
            color: var(--gray);
            font-weight: 500;
        }
        
        /* Results Section */
        .results-container {
            max-height: 500px;
            overflow-y: auto;
            border: 1px solid var(--light-gray);
            border-radius: var(--border-radius);
            margin-top: 20px;
            background: white;
        }
        
        .directive-item {
            padding: 20px;
            border-bottom: 1px solid var(--light-gray);
            transition: all 0.3s ease;
        }
        
        .directive-item:hover {
            background-color: #f8f9ff;
        }
        
        .directive-item:last-child {
            border-bottom: none;
        }
        
        .directive-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
        }
        
        .directive-name {
            font-weight: 700;
            color: var(--primary);
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .directive-value {
            color: var(--dark);
            font-family: 'Courier New', monospace;
            background: #f8f9ff;
            padding: 10px 15px;
            border-radius: 8px;
            margin-top: 5px;
            word-break: break-all;
        }
        
        .status-badge {
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            display: inline-block;
        }
        
        .status-success {
            background: rgba(56, 176, 0, 0.1);
            color: #2d9100;
        }
        
        .status-warning {
            background: rgba(255, 190, 11, 0.1);
            color: #b38700;
        }
        
        .status-error {
            background: rgba(255, 0, 110, 0.1);
            color: #cc0058;
        }
        
        .status-info {
            background: rgba(67, 97, 238, 0.1);
            color: var(--primary);
        }
        
        /* Premium Features Section */
        .premium-features {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: white;
            padding: 40px;
            border-radius: var(--border-radius);
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }
        
        .feature-card {
            background: rgba(255, 255, 255, 0.05);
            padding: 25px;
            border-radius: var(--border-radius);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.3s ease;
        }
        
        .feature-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-5px);
        }
        
        .feature-icon {
            width: 50px;
            height: 50px;
            background: var(--premium-gradient);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        
        /* FAQ Section */
        .faq-section {
            background: white;
            padding: 40px;
            border-radius: var(--border-radius);
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }
        
        .faq-item {
            padding: 25px;
            background: #f8f9ff;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--primary);
        }
        
        /* Notification */
        .notification {
            position: fixed;
            bottom: 30px;
            right: 30px;
            padding: 16px 24px;
            background: var(--primary);
            color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            display: none;
            z-index: 1001;
            animation: slideIn 0.3s ease;
            max-width: 350px;
        }
        
        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateX(100px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }
        
        .notification.show {
            display: block;
        }
        
        /* Loading Animation */
        .loader {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            border-top-color: white;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
        /* How-to Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin-top: 20px;
        }
        
        .step-card {
            text-align: center;
            padding: 25px;
            background: #f8f9ff;
            border-radius: var(--border-radius);
            border: 2px solid transparent;
            transition: all 0.3s ease;
        }
        
        .step-card:hover {
            border-color: var(--primary);
            transform: translateY(-5px);
        }
        
        .step-number {
            width: 60px;
            height: 60px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0 auto 15px;
        }
        
        /* Responsive Design */
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                text-align: center;
            }
            
            .logo {
                justify-content: center;
            }
            
            .premium-header {
                padding: 20px;
            }
            
            .url-input-group {
                flex-direction: column;
            }
            
            .stats-grid {
                grid-template-columns: 1fr;
            }
            
            .main-layout {
                gap: 20px;
            }
            
            .premium-card {
                padding: 20px;
            }
            
            .premium-tabs {
                overflow-x: auto;
            }
            
            .tab-btn {
                padding: 12px 16px;
                font-size: 0.9rem;
            }
        }
        
        @media (max-width: 480px) {
            body {
                padding: 10px;
            }
            
            .card-title {
                font-size: 1.2rem;
            }
            
            .stat-value {
                font-size: 1.5rem;
            }
            
            .premium-features,
            .faq-section {
                padding: 25px;
            }
        }
        
        /* Code Editor Style */
        .code-editor {
            background: #1e1e1e;
            color: #d4d4d4;
            padding: 20px;
            border-radius: var(--border-radius);
            font-family: 'Courier New', monospace;
            font-size: 0.95rem;
            line-height: 1.5;
            overflow-x: auto;
            margin-top: 20px;
        }
        
        .code-line {
            margin-bottom: 5px;
        }
        
        .code-comment {
            color: #6a9955;
        }
        
        .code-directive {
            color: #569cd6;
        }
        
        .code-value {
            color: #ce9178;
        }
        
        /* Export Options */
        .export-options {
            display: flex;
            gap: 12px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        
        .export-btn {
            padding: 12px 20px;
            background: var(--light-gray);
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
            font-weight: 500;
        }
        
        .export-btn:hover {
            background: var(--primary);
            color: white;
        }