/* Advertisement Styles */
.advertisement-banner {
    width: 100%;
    margin: 20px 0;
}

.ad-placeholder {
    border: 1px dashed #ccc;
    transition: all 0.3s ease;
}

.ad-placeholder:hover {
    border-color: #666;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.advertisement-sidebar {
    position: sticky;
    top: 80px;
}

/* Responsive Advertisement Styles */
@media (max-width: 768px) {
    .advertisement-sidebar {
        position: static;
        margin-top: 20px;
    }
    
    .ad-placeholder {
        margin-bottom: 15px;
    }
}

/* Advertisement Animation */
@keyframes adPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

.ad-placeholder:hover {
    animation: adPulse 1s infinite;
}