/**
 * Image Viewer - Full page image display with progressive zoom
 * Reuses easyzoom concepts adapted for full-page viewing
 */

/* Main container - full viewport */
.image-viewer-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #1a1a1a;
    overflow: hidden;
    z-index: 9999;
}

/* Header toolbar */
.image-viewer-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50px;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 15px;
    z-index: 10001;
    transition: opacity 0.3s ease;
}

.image-viewer-container.fullscreen .image-viewer-header {
    opacity: 0;
}

.image-viewer-container.fullscreen:hover .image-viewer-header {
    opacity: 1;
}

.image-viewer-title {
    color: #fff;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 50%;
}

.image-viewer-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.image-viewer-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: all 0.2s ease;
}

.image-viewer-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.image-viewer-btn i {
    font-size: 16px;
}

.image-viewer-btn-close {
    background: rgba(220, 53, 69, 0.8);
    border-color: rgba(220, 53, 69, 0.9);
}

.image-viewer-btn-close:hover {
    background: rgba(220, 53, 69, 1);
}

/* Zoom level indicator */
.image-viewer-zoom-level {
    color: #fff;
    font-size: 14px;
    min-width: 60px;
    text-align: center;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

/* Main image area */
.image-viewer-content {
    position: absolute;
    top: 50px;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    cursor: grab;
}

.image-viewer-content:active {
    cursor: grabbing;
}

.image-viewer-content.zooming {
    cursor: zoom-in;
}

.image-viewer-image-wrapper {
    position: absolute;
    transform-origin: center center;
    transition: transform 0.1s ease-out;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.image-viewer-image-wrapper.dragging {
    transition: none;
}

.image-viewer-image {
    max-width: none;
    max-height: none;
    user-select: none;
    -webkit-user-drag: none;
}

/* Loading state */
.image-viewer-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.image-viewer-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Zoom slider (optional, on left side) */
.image-viewer-zoom-slider-container {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.7);
    border-radius: 8px;
    padding: 15px 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 10000;
    transition: opacity 0.3s ease;
}

.image-viewer-container.fullscreen .image-viewer-zoom-slider-container {
    opacity: 0;
}

.image-viewer-container.fullscreen:hover .image-viewer-zoom-slider-container {
    opacity: 1;
}

.image-viewer-zoom-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 150px;
    height: 6px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    outline: 2px solid transparent;
    outline-offset: 2px;
    transform: rotate(-90deg);
    transform-origin: center center;
    margin: 70px 0;
}

.image-viewer-zoom-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: #fff;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.1s ease;
}

.image-viewer-zoom-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.image-viewer-zoom-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

.image-viewer-zoom-label {
    color: #fff;
    font-size: 12px;
}

/* Help tooltip */
.image-viewer-help {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 13px;
    text-align: center;
    z-index: 10000;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.image-viewer-help.hidden {
    opacity: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .image-viewer-header {
        padding: 0 10px;
    }

    .image-viewer-btn {
        padding: 6px 10px;
        font-size: 12px;
    }

    .image-viewer-btn span {
        display: none;
    }

    .image-viewer-title {
        font-size: 12px;
        max-width: 30%;
    }

    .image-viewer-zoom-slider-container {
        left: 10px;
        padding: 10px 8px;
    }

    .image-viewer-zoom-slider {
        width: 100px;
        margin: 45px 0;
    }

    .image-viewer-help {
        font-size: 11px;
        padding: 8px 15px;
    }
}

/* Print: hide viewer */
@media print {
    .image-viewer-container {
        display: none;
    }
}