/* /assets/css/ebook-carousel.css */
.ebook-container {
    margin: 0 auto;
    position: relative;
}

.ebook-viewer {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f9f9f9;
    border-radius: 12px;
    overflow: hidden;
}

.ebook-main-slider {
    width: 100%;
	max-height: 420px;
    text-align: center;
    padding: 20px;
}

.main-slide {
    display: none;
    animation: ebookFadeIn 0.4s;
}

.main-slide.active {
    display: block;
}

.main-slide img {
    max-width: 100%;
    height: 500px;
    object-fit: contain;
}

.nav-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.3);
    color: white;
    border: none;
    padding: 15px 10px;
    cursor: pointer;
    z-index: 10;
    transition: 0.3s;
    font-size: 20px;
    border-radius: 4px;
}

.nav-arrow:hover {
    background: rgba(0,0,0,0.7);
}

.prev { left: 10px; }
.next { right: 10px; }

.ebook-lightbox-link {
    display: inline-block;
    cursor: zoom-in;
}

.ebook-thumbs-nav {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    margin-top: 15px;
    padding-bottom: 10px;
    scroll-behavior: smooth;
}

.thumb-item {
    cursor: pointer;
    opacity: 0.5;
    flex: 0 0 70px;
    transition: 0.3s;
}

.thumb-item.active {
    opacity: 1;
    outline: 2px solid #222;
}

.thumb-item img {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: 4px;
}

@keyframes ebookFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ปุ่ม Fullscreen */
.fullscreen-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 20;
    background: rgba(0,0,0,0.6);
    color: #fff;
    border: none;
    padding: 8px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
}

.fullscreen-btn:hover {
    background: rgba(0,0,0,0.85);
}

/* เมื่อเข้าโหมด Fullscreen */
.ebook-viewer.fullscreen,
:fullscreen .ebook-viewer {
    width: 100vw;
    height: 100vh;
    background: #000;
    border-radius: 0;
}

:fullscreen .ebook-main-slider {
    padding: 0;
	max-height: fit-content;
}

/* รูปในโหมดอ่าน */
:fullscreen .main-slide img {
	width: 90vw;
    height: 100vh;
    max-height: 100vh;
    object-fit: contain;
}

/* Thumbnail ด้านล่างใน fullscreen */
:fullscreen .ebook-thumbs-nav {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.6);
    padding: 10px;
}

/* มือถือ */
@media (max-width: 768px) {
    .main-slide img {
        height: 70vh;
    }

    .thumb-item {
        flex: 0 0 60px;
    }

    .thumb-item img {
        height: 60px;
    }
	
	.nav-arrow {
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s;
    }

    /* เมื่อเปิดการแสดงผล */
    .ebook-viewer.show-controls .nav-arrow {
        opacity: 1;
        pointer-events: auto;
    }
}