/* 全螢幕樣式 */
html, body {
    height: 100vh;
    overflow: hidden;
    margin: 0;
    padding: 0;
    background-color: #000;
}

/* 防止抖動 */
* {
    box-sizing: border-box;
}

.row {
    margin: 0;
    padding: 0;
}

/* 確保容器沒有多餘空間 */
.container-fluid {
    background-color: #000;
}

.row {
    background-color: #000;
}

/* 強制覆蓋Bootstrap網格系統 */

#imageNavigator.collapsed {
    flex: 0 0 50px !important;
    max-width: 50px !important;
    width: 50px !important;
    min-width: 50px !important;
    margin: 0 !important;
    padding: 0 !important;
    transition: width 0.5s ease, min-width 0.5s ease, max-width 0.5s ease, flex 0.5s ease, clip-path 0.5s ease;
    clip-path: inset(0 0 0 calc(100% - 50px));
}

/* 確保圖片區域在導覽器收合時擴展 */
#imageViewer {
    transition: width 0.5s ease, max-width 0.5s ease, flex 0.5s ease;
}

    #imageViewer.expanded {
        flex: 1 !important;
        max-width: calc(100% - 50px) !important;
        width: calc(100% - 50px) !important;
        margin: 0 !important;
        padding: 0 !important;
    }

/* 圖片查看器樣式 */
.image-container {
    background-color: #000;
    position: relative;
    z-index: 1;
    overflow: hidden;
    will-change: transform;
}

/* 當導覽器收合時，圖片區域擴展 */
#imageViewer.expanded {
    flex: 1 !important;
    max-width: calc(100% - 50px) !important;
    width: calc(100% - 50px) !important;
}

#mainImage {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
    z-index: 1;
    cursor: grab;
    user-select: none;
    will-change: transform;
    transform: translateZ(0);
}

    /* 拖曳時才套用 */
    #mainImage.dragging {
        cursor: grabbing;
    }


/* 控制按鈕樣式 */
.controls-overlay {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 1002;
}

    .controls-overlay .btn {
        backdrop-filter: blur(10px);
        background-color: rgba(0, 0, 0, 0.5);
        border: 1px solid rgba(255, 255, 255, 0.3);
        color: white;
        transition: all 0.3s ease;
    }

        .controls-overlay .btn:hover {
            background-color: rgba(0, 0, 0, 0.7);
            border-color: rgba(255, 255, 255, 0.5);
            transform: scale(1.1);
        }

/* 導覽控制按鈕樣式 */
.navigation-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 1002;
    pointer-events: none;
}

    .navigation-controls .btn {
        backdrop-filter: blur(10px);
        background-color: rgba(0, 0, 0, 0.5);
        border: 1px solid rgba(255, 255, 255, 0.3);
        color: white;
        transition: all 0.3s ease;
        pointer-events: auto;
        width: 50px;
        height: 50px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
    }

        .navigation-controls .btn:hover {
            background-color: rgba(0, 0, 0, 0.7);
            border-color: rgba(255, 255, 255, 0.5);
            transform: scale(1.1);
        }

/* 圖片資訊樣式 */
.image-info {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1002;
}

/* 導覽器樣式 */
#imageNavigator {
    background-color: #2c2c2c;
    border-left: 1px solid #404040;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1001;
    overflow: hidden;
    flex: 1;
    width: 30%;
    min-width: 30%;
    max-width: 30%;
    transition: width 0.5s ease;
}

    #imageNavigator.collapsed {
        width: 0 !important;
        min-width: 0 !important;
        max-width: 0 !important;

    }

        /* 覆蓋Bootstrap網格系統的收合狀態 */
        #imageNavigator.collapsed.col-md-4,
        #imageNavigator.collapsed.col-lg-3 {
            flex: 0 0 50px !important;
            max-width: 50px !important;
            width: 50px !important;
            min-width: 50px !important;
        }

#imageViewer {
    flex: 1;
    transition: margin-left 0.5s ease;
}



.navigator-header {
    background-color: #1a1a1a;
    padding: 10px 15px;
    border-bottom: 1px solid #404040;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #ffffff;
    height: 50px;
    min-height: 50px;
    max-height: 50px;
    flex-shrink: 0;
}

    .navigator-header h5 {
        opacity: 1;
        visibility: visible;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    .navigator-header button {
        height: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

.navigator-content {
    flex: 1;
    overflow-y: auto;
    background-color: #2c2c2c;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

    #imageNavigator.collapsed .navigator-content {
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    #imageNavigator.collapsed .navigator-header h5 {
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    #imageNavigator.collapsed .navigator-header {
        background-color: #1a1a1a;
        justify-content: flex-end; /* 改成靠右排列 */
        padding: 10px 15px;
        min-width: 50px;
        height: 50px;
        min-height: 50px;
        max-height: 50px;
        transition: padding 0.3s ease, justify-content 0.3s ease;
    }

        #imageNavigator.collapsed .navigator-header button {
            padding: 9px;
            font-size: 12px;
            height: 30px;
            width: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: transparent;
            border-color: #666;
            color: #fff;
        }

            #imageNavigator.collapsed .navigator-header button i {
                font-size: 14px;
            }

            #imageNavigator.collapsed .navigator-header button:hover {
                background-color: #404040;
                border-color: #888;
            }

/* 圖片縮圖網格樣式 */
.thumbnail-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 5px;
    padding: 10px 0;
}

.thumbnail-item {
    aspect-ratio: 1;
    cursor: pointer;
    border: 2px solid transparent;
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.2s ease;
    position: relative;
}

    .thumbnail-item:hover {
        transform: scale(1.2);
    }

    .thumbnail-item.active {
        border: 4px solid #ff0000;
        border-radius: 0px !important;
    }

    .thumbnail-item img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

.thumbnail-number {
    position: absolute;
    bottom: 2px;
    right: 2px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 10px;
    padding: 1px 3px;
    border-radius: 2px;
}

/* Accordion 樣式調整 */
:root {
    --bs-border-radius: 0;
}

.accordion-item {
    border: none;
    margin-bottom: 0;
    border-radius: 0;
    overflow: hidden;
    width: 100%;
}

.accordion-button {
    padding: 12px 15px;
    font-size: 14px;
    background-color: #404040;
    color: #ffffff;
    border: none;
    border-radius: 0 !important;
    transition: all 0.3s ease;
    width: 100%;
}

    .accordion-button:hover {
        background-color: #505050;
        color: #ffffff;
    }

    .accordion-button:not(.collapsed) {
        background-color: #505050;
        color: #ffffff;
        box-shadow: none;
    }

    .accordion-button:focus {
        box-shadow: none;
        border: none;
    }

    .accordion-button::after {
        filter: invert(1);
    }

.accordion-body {
    padding: 15px;
    background-color: #3a3a3a;
    border-top: 1px solid #404040;
}

/* 千位分類樣式 */
.thousand-accordion {
    margin-bottom: 0;
}

    .thousand-accordion .accordion-button {
        background-color: #404040;
        font-weight: bold;
        font-size: 16px;
    }

        .thousand-accordion .accordion-button:hover {
            background-color: #3a3a3a;
        }

        .thousand-accordion .accordion-button:not(.collapsed) {
            background-color: #3a3a3a;
        }

    .thousand-accordion .accordion-body {
        background-color: #404040;
        padding: 0;
    }

/* 百位分類樣式 */
.hundred-accordion .accordion-button {
    background-color: #3a3a3a;
    font-size: 14px;
    padding: 10px 15px;
    padding-left: 2em;
}

    .hundred-accordion .accordion-button:hover {
        background-color: #505050;
    }

    .hundred-accordion .accordion-button:not(.collapsed) {
        background-color: #505050;
    }

.hundred-accordion .accordion-body {
    background-color: #3a3a3a;
    padding: 10px;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .controls-overlay {
        top: 10px;
        left: 10px;
    }

        .controls-overlay .btn {
            padding: 0.25rem 0.5rem;
            font-size: 0.875rem;
        }

    .image-info {
        bottom: 10px;
        right: 10px;
    }

    .thumbnail-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    #imageNavigator.collapsed {
        width: 40px !important;
        min-width: 40px !important;
        max-width: 40px !important;
        flex: 0 0 40px !important;
    }

    .navigation-controls {
        padding: 0 10px;
    }

        .navigation-controls .btn {
            width: 40px;
            height: 40px;
        }
}

/* 載入動畫 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 滾動條樣式 */
.navigator-content::-webkit-scrollbar {
    width: 8px;
}

.navigator-content::-webkit-scrollbar-track {
    background: #2c2c2c;
}

.navigator-content::-webkit-scrollbar-thumb {
    background: #505050;
    border-radius: 4px;
}

    .navigator-content::-webkit-scrollbar-thumb:hover {
        background: #606060;
    }

#btnBack {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 2000;
    background-color: rgba(0, 0, 0, 0.5);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 17px;
    transition: all 0.3s ease;
    display: inline-block;
    text-align: center;
    width: auto;
}