.btn-favorite {
    top: 12px;
    right: 12px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,0.9);
    border: 1px solid #dee2e6;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.btn-favorite i {
    font-size: 18px;
    color: #6c757d;
}

.btn-favorite.active i {
    color: #dc3545;
}