/* ========================================
   HOUSE ADS (Internal Promotions)
   ======================================== */

.house-ad {
    display: block;
    padding: var(--space-5);
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    margin-bottom: var(--space-6);
}

.house-ad:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.house-ad-label {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--bg-light);
    color: var(--text-muted);
    font-size: 9px;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Variant: Tool Promo (Blue) */
.house-ad-tool {
    background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
    border-color: #dbeafe;
}

.house-ad-tool .house-ad-icon {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-3);
    display: block;
}

.house-ad-tool .house-ad-title {
    color: var(--primary-dark);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-2);
    display: block;
}

.house-ad-tool .house-ad-text {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    margin-bottom: var(--space-3);
    display: block;
}

.house-ad-btn {
    display: inline-block;
    padding: 8px 16px;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
}

/* Variant: Donation/Support (Green) */
.house-ad-support {
    background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%);
    border-color: #dcfce7;
}

.house-ad-support .house-ad-btn {
    background: var(--success);
}