/* Ad styling */
.ad-container {
    margin: 1rem 0;
    text-align: center;
    overflow: hidden;
}

.ad-image {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.ad-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
    border: 2px dashed #dee2e6;
    border-radius: 4px;
    padding: 1rem;
    min-height: 100px;
    text-align: center;
    color: #6c757d;
}

.ad-placeholder-image {
    max-width: 100%;
    height: auto;
    opacity: 0.6;
}

/* Specific ad sizes */
.ad-leaderboard {
    width: 728px;
    max-width: 100%;
    margin: 0 auto;
}

.ad-billboard {
    width: 970px;
    max-width: 100%;
    margin: 0 auto;
}

.ad-medium-rectangle {
    width: 300px;
    margin: 0 auto;
}

.ad-large-rectangle {
    width: 336px;
    margin: 0 auto;
}

.ad-half-page {
    width: 300px;
    margin: 0 auto;
}

.ad-mobile-leaderboard {
    width: 320px;
    max-width: 100%;
    margin: 0 auto;
}

.ad-large-mobile {
    width: 320px;
    max-width: 100%;
    margin: 0 auto;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .ad-leaderboard, .ad-billboard {
        width: 100%;
    }
}