.doctor-banner-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 20px 0;
}
@media screen and (max-width: 768px) {
    .doctor-banner-grid {
        grid-template-columns: 1fr;
    }
}
.doctor-banner-card {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    padding: 15px;
    text-align: center;
    animation: fadeIn 0.5s ease;
}
.doctor-banner-card img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: transform 0.2s ease;
}
.doctor-banner-card img:hover {
    transform: scale(1.03);
}
.banner-caption {
    font-size: 14px;
    color: #333;
    margin-bottom: 10px;
}
.fb-share-btn {
    display: inline-block;
    background: #1877f2;
    color: #fff;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
}
.fb-share-btn:hover {
    background: #0d5bd9;
}
#load-more-container {
    text-align: center;
    margin-top: 20px;
}
#load-more-btn {
    background: #1877f2;
    color: #fff;
    border: none;
    padding: 12px 25px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
}
#load-more-btn:hover {
    background: #0d5bd9;
}

/* Preview overlay */
#preview-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}
#preview-overlay img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(255,255,255,0.3);
}
.close-preview {
    position: absolute;
    top: 20px;
    right: 35px;
    font-size: 40px;
    color: white;
    cursor: pointer;
    font-weight: bold;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}