/**
 * 圖片查看器樣式
 * 用於 ImageViewer 模組的所有樣式定義
 */

.media-viewer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.media-viewer.active {
    opacity: 1;
    visibility: visible;
}

.media-viewer-content {
    max-width: 90%;
    max-height: 90%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: transform 0.3s ease;
}

.media-viewer-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    cursor: zoom-in;
    transition: transform 0.3s ease;
    transform-origin: center center;
}

.media-viewer-content img.zoomed {
    cursor: zoom-out;
}

.media-viewer-close,
.media-viewer-prev,
.media-viewer-next,
.media-viewer-zoom-in,
.media-viewer-zoom-out {
    position: absolute;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    transition: background 0.2s ease;
}

.media-viewer-close:hover,
.media-viewer-prev:hover,
.media-viewer-next:hover,
.media-viewer-zoom-in:hover,
.media-viewer-zoom-out:hover {
    background: rgba(0, 0, 0, 0.8);
}

.media-viewer-close {
    top: 15px;
    right: 15px;
}

.media-viewer-prev {
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
}

.media-viewer-next {
    top: 50%;
    right: 15px;
    transform: translateY(-50%);
}

.media-viewer-zoom-in {
    bottom: 15px;
    right: 65px;
}

.media-viewer-zoom-out {
    bottom: 15px;
    right: 15px;
}

.media-viewer-navigation {
    position: absolute;
    bottom: 15px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 10px;
    overflow-x: auto;
    max-width: 100%;
    scrollbar-width: thin;
}

.media-viewer-navigation .thumbnail {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border: 2px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.media-viewer-navigation .thumbnail.active {
    border-color: #fff;
    transform: scale(1.1);
}

.media-viewer-counter {
    position: absolute;
    top: 15px;
    left: 15px;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 14px;
}

/* 滑動手勢支持 */
.media-viewer-content.swiping {
    transition: transform 0.1s ease;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .media-viewer-close,
    .media-viewer-prev,
    .media-viewer-next,
    .media-viewer-zoom-in,
    .media-viewer-zoom-out {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }
    
    .media-viewer-navigation .thumbnail {
        width: 50px;
        height: 50px;
    }
    
    .media-viewer-counter {
        font-size: 12px;
        padding: 4px 8px;
    }
}

@media (max-width: 480px) {
    .media-viewer-content {
        max-width: 95%;
        max-height: 95%;
    }
    
    .media-viewer-navigation {
        bottom: 10px;
        padding: 8px;
        gap: 6px;
    }
    
    .media-viewer-navigation .thumbnail {
        width: 40px;
        height: 40px;
    }
}