.portfolio-ads-section {
    margin: 2.5rem auto;
    padding: 2rem 0;
    background: #111827;
    border-radius: 12px;
    box-shadow: 0 2px 8px 0 rgba(31,41,55,0.04);
    text-align: center;
    max-width: 1200px;
}

.portfolio-ads-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #3b82f6;
    margin-bottom: 0.5rem;
}

.portfolio-ads-text {
    color: #6b7280;
    margin-bottom: 1rem;
}

.portfolio-ad-placeholder {
    background: #111827;
    border: 1px dashed #cbd5e1;
    border-radius: 10px;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 1.5rem 0;
    box-shadow: 0 2px 8px 0 rgba(31,41,55,0.04);
    transition: border-color 0.2s;
    position: relative;
}

.portfolio-ad-placeholder:hover {
    border-color: #3b82f6;
}

.portfolio-ad-placeholder span {
    color: #64748b;
    font-size: 1rem;
}

@media (max-width: 575px) {
    .portfolio-ads-section {
        padding: 1rem 0.5rem;
    }
    .portfolio-ads-title {
        font-size: 1rem;
    }
    .portfolio-ads-text {
        font-size: 0.95rem;
    }
    .portfolio-ad-placeholder {
        min-height: 80px;
        padding: 0.5rem;
        margin: 1rem 0;
    }
    .portfolio-ad-placeholder span {
        font-size: 0.95rem;
    }
}