body { background: #f8f9fa; }

.item-card { transition: transform .15s, box-shadow .15s; }
.item-card:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(0,0,0,.12); }

.item-card .card-img-top {
    height: 200px;
    object-fit: cover;
}

.img-placeholder {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #e9ecef;
    color: #adb5bd;
    font-size: 3rem;
}

.gallery-thumb {
    width: 80px;
    height: 80px;
    object-fit: cover;
    cursor: pointer;
    border: 2px solid transparent;
    border-radius: 4px;
    transition: border-color .15s;
}
.gallery-thumb:hover, .gallery-thumb.active { border-color: var(--bs-primary); }

.sidebar-filter { position: sticky; top: 1rem; }

.exchange-card { border-left: 4px solid var(--bs-primary); }