.ad-container {
            margin: 20px 0;
            padding: 15px;
            background: #f8f9fa;
            border-radius: 8px;
            border: 1px solid #e9ecef;
        }

        .ad-unit {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border: 2px dashed #dee2e6;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            text-align: center;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            min-height: 100px;
        }

        .ad-unit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }

        .ad-unit::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
            transform: rotate(45deg);
            animation: shimmer 3s infinite;
        }

        @keyframes shimmer {
            0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
            100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
        }

        .ad-label {
            position: absolute;
            top: 5px;
            left: 10px;
            background: rgba(0,0,0,0.6);
            color: white;
            padding: 2px 8px;
            border-radius: 3px;
            font-size: 10px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* Responsive ad sizes */
        .ad-banner {
            height: 90px;
        }

        .ad-large-banner {
            height: 100px;
        }

        .ad-medium-rectangle {
            height: 250px;
        }

        .ad-large-rectangle {
            height: 280px;
        }

        .ad-skyscraper {
            height: 600px;
        }

        .ad-square {
            height: 250px;
        }

        /* Mobile responsive adjustments */
        @media (max-width: 768px) {
            .ad-skyscraper {
                height: 250px;
            }
            
            .ad-medium-rectangle,
            .ad-large-rectangle {
                height: 200px;
            }
        }

        /* Content styling */
        .content-section {
            background: white;
            padding: 30px;
            border-radius: 8px;
            margin: 20px 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        .page-header {
            background: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%);
            color: white;
            padding: 40px 0;
            margin-bottom: 30px;
        }

        body {
            background: #f1f3f4;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }