/* Ad Placement Styles */
.ad-container {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    text-align: center;
}

.ad-label {
    font-size: 0.75rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.ad-placeholder {
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    border: 2px dashed #d1d5db;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9ca3af;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.ad-placeholder:hover {
    background: linear-gradient(135deg, #e5e7eb 0%, #d1d5db 100%);
    border-color: #9ca3af;
}

/* Specific ad sizes */
.ad-leaderboard {
    height: 90px;
    max-width: 728px;
    margin: 0 auto;
}

.ad-square {
    width: 250px;
    height: 250px;
    margin: 0 auto;
}

.ad-rectangle {
    width: 300px;
    height: 250px;
    margin: 0 auto;
}

.ad-banner {
    height: 60px;
    max-width: 468px;
    margin: 0 auto;
}

.ad-skyscraper {
    width: 160px;
    height: 600px;
    margin: 0 auto;
}

/* Responsive ad containers */
@media (max-width: 768px) {
    .ad-leaderboard {
        max-width: 320px;
        height: 50px;
    }
    
    .ad-square {
        width: 200px;
        height: 200px;
    }
    
    .ad-rectangle {
        width: 250px;
        height: 200px;
    }
}

/* Ad section styling */
.ad-section {
    background: #f9fafb;
    padding: 2rem 0;
    border-top: 1px solid #e5e7eb;
    border-bottom: 1px solid #e5e7eb;
}

.ad-section-inline {
    margin: 3rem 0;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

/* Sidebar ad styling */
.sidebar-ad {
    position: sticky;
    top: 2rem;
    margin-bottom: 2rem;
}

/* Article inline ad */
.article-inline-ad {
    margin: 2rem 0;
    padding: 1rem;
    background: #fafafa;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

/* Ad disclosure */
.ad-disclosure {
    font-size: 0.75rem;
    color: #6b7280;
    margin-top: 0.5rem;
    font-style: italic;
}