.gallery-tabs {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin: 15px auto;
    width: fit-content; /* tự co theo nội dung */
}

.gallery-tab {
    padding: 0.5rem 1.2rem;
    background-color: #eee;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.2s ease;
}

.gallery-tab:hover {
    background-color: #ccc;
}

.gallery-tab.active {
    background-color: #c69f37;
    color: #fff !important;
}

.flipbook-wrapper {
    position: relative;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
}

#flipbook {
    width: 100%;
    overflow: hidden;
}

.page-flip-container {
    width: 100%;
    height: auto;
}

.flip-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background: rgba(0,0,0,0.6);
    color: #fff;
    border: none;
    padding: 10px;
    cursor: pointer;
}

#flip-prev {
    left: 0;
}
#flip-next {
    right: 0;
}
/*.flipbook-wrapper {
    position: relative;
    width: 100%;
    max-width: 100%;
    margin: 20px auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

#flipbook {
    flex: 1;
    display: flex;
    justify-content: center;
}

.flip-nav {
    font-size: 2rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0 10px;
    user-select: none;
}*/