/* Ad container - will contain both placeholder and actual ad */
        .ad-wrapper {
            width: 100%;
            position: relative;
            margin: 20px 0;
            min-height: 100px; /* Default minimum height */
            overflow: hidden;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }
        
        /* Placeholder styling */
        .ad-placeholder {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: #f9f9f9;
            z-index: 1;
            padding: 15px;
            box-sizing: border-box;
            overflow: hidden;
        }
        
        /* Flashing elements */
        .placeholder-item {
            background-color: #e0e0e0;
            border-radius: 4px;
            animation: flash 1.5s infinite;
        }
        
        .placeholder-header {
            height: 60%;
            max-height: 120px;
            margin-bottom: 15px;
        }
        
        .placeholder-title {
            height: 24px;
            width: 70%;
            margin-bottom: 15px;
        }
        
        .placeholder-text {
            height: 14px;
            margin-bottom: 10px;
        }
        
        .placeholder-text.line-1 {
            width: 90%;
            animation-delay: 0.1s;
        }
        
        .placeholder-text.line-2 {
            width: 80%;
            animation-delay: 0.2s;
        }
        
        .placeholder-button {
            height: 32px;
            width: 120px;
            margin-top: 15px;
            animation-delay: 0.3s;
        }
        
        /* Flash animation */
        @keyframes flash {
            0% {
                background-color: #e0e0e0;
            }
            50% {
                background-color: #f0f0f0;
            }
            100% {
                background-color: #e0e0e0;
            }
        }
        
        /* Label for ad content */
        .ad-label {
            position: absolute;
            top: 5px;
            right: 5px;
            background-color: rgba(0, 0, 0, 0.5);
            color: white;
            font-size: 10px;
            padding: 2px 5px;
            border-radius: 3px;
            z-index: 2;
        }
        
        /* AdSense container */
        .adsbygoogle-container {
            width: 100%; 
            min-height: 250px;
            position: relative;
            z-index: 0;
        }
        
        /* Additional flashing elements for variety */
        .placeholder-image {
            position: absolute;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            bottom: 15px;
            right: 15px;
            animation: flash 1.8s infinite;
        }
        
        .placeholder-badge {
            position: absolute;
            width: 60px;
            height: 20px;
            border-radius: 10px;
            top: 15px;
            left: 15px;
            animation: flash 2s infinite;
            animation-delay: 0.5s;
        }
        
        /* Responsive adjustments */
        @media (max-width: 768px) {
            .ad-wrapper {
                min-height: 200px;
            }
            
            .placeholder-header {
                height: 50%;
            }
            
            .placeholder-title {
                height: 20px;
            }
            
            .placeholder-text {
                height: 12px;
            }
        }
        
        @media (max-width: 480px) {
            .ad-wrapper {
                min-height: 180px;
            }
            
            .placeholder-header {
                height: 40%;
            }
        }