.ad-footer {
    margin: 40px auto 20px auto;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
    border: 1px solid #e9ecef;
    text-align: center;
    max-width: 1200px;
    position: relative;
}

    .ad-footer::before {
        content: 'Advertisement';
        display: block;
        font-size: 0.8rem;
        color: #6c757d;
        margin-bottom: 10px;
        text-transform: uppercase;
        letter-spacing: 1px;
    }

    /* Responsive ad sizing */
    .ad-footer ins {
        margin: 0 auto;
        border-radius: 8px;
        overflow: hidden;
    }

/* Mobile optimization */
@media (max-width: 768px) {
    .ad-footer {
        margin: 30px 15px 15px 15px;
        padding: 15px;
    }

        .ad-footer::before {
            font-size: 0.7rem;
        }
}

/* Prevent layout shift */
.ad-footer {
    min-height: 90px; /* Adjust based on your ad size */
}

    /* Loading state */
    .ad-footer.loading {
        background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
        background-size: 200% 100%;
        animation: loading 1.5s infinite;
    }

@keyframes loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}