body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: #f7fafc;
        }

        .header {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            color: white;
            padding: 3rem 0;
            text-align: center;
            margin-bottom: 2rem;
        }

        .header h1 {
            margin: 0 0 1rem 0;
            font-size: 2.5rem;
            font-weight: 300;
        }

        .header p {
            margin: 0;
            font-size: 1.25rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto;
        }

        .aiab-stats {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }

        .aiab-stat {
            text-align: center;
            padding: 0 1rem;
        }

        .stat-number {
            display: block;
            font-size: 2rem;
            font-weight: 600;
        }

        .aiab-stat-label {
            font-size: 0.875rem;
            opacity: 0.8;
        }

        .section {
            background: white;
            margin: 2rem 0;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
        }

        .section-title {
            font-size: 1.75rem;
            margin: 0 0 1rem 0;
            color: #2d3748;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .section-subtitle {
            color: #718096;
            margin-bottom: 2rem;
        }

        .aiab-demo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }

        .demo-item {
            padding: 2rem;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            text-align: center;
            background: #f8fafc;
            min-height: 150px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .demo-item h4 {
            margin: 0 0 1rem 0;
            color: #4a5568;
            font-size: 1rem;
        }

        .code-block {
            background: #2d3748;
            color: #e2e8f0;
            padding: 1rem;
            border-radius: 6px;
            font-family: 'Monaco', 'Consolas', monospace;
            font-size: 0.875rem;
            overflow-x: auto;
            margin: 1rem 0;
        }

        .keyword { color: #ff7979; }
        .string { color: #00cec9; }
        .comment { color: #636e72; }

        .interactive-demo {
            background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            padding: 3rem;
            border-radius: 12px;
            text-align: center;
            color: white;
            margin: 2rem 0;
        }

        .interactive-demo h3 {
            margin-top: 0;
            font-size: 1.5rem;
        }

        .button-group {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            margin: 2rem 0;
        }

        .mobile-demo {
            background: #1a1a1a;
            border-radius: 24px;
            padding: 1rem;
            max-width: 375px;
            margin: 2rem auto;
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }

        .mobile-screen {
            background: white;
            border-radius: 16px;
            padding: 1rem;
            min-height: 400px;
        }

        .mobile-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem;
            border-bottom: 1px solid #e2e8f0;
            margin-bottom: 1rem;
        }

        .product-card {
            background: white;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            padding: 1rem;
            margin: 1rem 0;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }

        .product-image {
            width: 100%;
            height: 150px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }

        .product-info {
            text-align: left;
        }

        .product-name {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: #2d3748;
        }

        .product-price {
            color: #10b981;
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .product-actions {
            display: flex;
            gap: 0.5rem;
            justify-content: space-between;
        }

        .tooltip-trigger {
            cursor: help;
            text-decoration: underline;
            text-decoration-style: dotted;
            text-underline-offset: 2px;
            color: var(--color-primary);
        }

        .position-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
            max-width: 600px;
            margin: 2rem auto;
            padding: 3rem;
            background: #f8fafc;
            border-radius: 12px;
        }

        .position-item {
            padding: 1rem;
            background: white;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            text-align: center;
            cursor: pointer;
            transition: all 0.2s;
        }

        .position-item:hover {
            border-color: var(--color-primary);
            transform: translateY(-2px);
        }

        .help-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 20px;
            height: 20px;
            background: var(--color-primary);
            color: white;
            border-radius: 50%;
            font-size: 12px;
            cursor: help;
            margin-left: 0.5rem;
        }

        .form-section {
            max-width: 500px;
            margin: 2rem auto;
        }

        .aiab-form-group {
            margin-bottom: 1.5rem;
        }

        .form-label {
            display: flex;
            align-items: center;
            margin-bottom: 0.5rem;
            color: #4a5568;
            font-weight: 500;
        }

        .form-input {
            width: 100%;
            padding: 0.75rem;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.2s;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--color-primary);
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .feature-list li {
            padding: 0.75rem 0;
            border-bottom: 1px solid #e2e8f0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .feature-list li:last-child {
            border-bottom: none;
        }

        @media (max-width: 768px) {
            .header h1 {
                font-size: 1.75rem;
            }

            .header p {
                padding: 0 1rem;
            }

            .aiab-stats {
                gap: 1rem;
            }

            .position-grid {
                grid-template-columns: repeat(2, 1fr);
                padding: 1rem;
            }

            .aiab-demo-grid {
                grid-template-columns: 1fr;
            }

            .button-group {
                flex-direction: column;
                align-items: stretch;
            }

            .section {
                margin: 1rem;
                padding: 1rem;
            }
        }

        .alert-demo {
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .alert-success {
            background: #f0fdf4;
            color: #10b981;
            border: 1px solid #10b981;
        }

        .alert-warning {
            background: #fef3c7;
            color: #d97706;
            border: 1px solid #d97706;
        }

        .alert-info {
            background: #dbeafe;
            color: #3b82f6;
            border: 1px solid #3b82f6;
        }