/* Project: file_manager */
/* File Path: file_manager/static/css/style.css */
/* Last Updated: 2025-08-08 07:45:00 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700&display=swap');

:root {
    --bg-dark: #1a202c; --bg-medium: #2d3748; --bg-light: #4a5568;
    --text-light: #e2e8f0; --text-medium: #a0aec0; --border-color: #4a5568;
    --accent-blue: #63b3ed; --accent-blue-dark: #3182ce; --accent-yellow: #f6e05e;
    --accent-green: #48bb78; --accent-green-dark: #38a169;
    --accent-red: #f56565; --accent-red-dark: #c53030;
    --icon-py: #4B8BBE; --icon-js: #F0DB4F; --icon-html: #E44D26; --icon-css: #264DE4;
    --icon-img: #AB47BC; --icon-pdf: #EF5350; --icon-zip: #78909C;
    --icon-audio: #9C27B0; --icon-video: #4CAF50;
}
body { font-family: 'Inter', sans-serif; background-color: var(--bg-dark); color: var(--text-light); margin: 0; padding: 20px; overflow: hidden; }
#app-container { display: flex; justify-content: center; align-items: center; height: calc(100vh - 40px); }
.file-manager-container { width: 100%; max-width: 1400px; height: 90vh; margin: auto; background-color: var(--bg-medium); border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.4); display: flex; flex-direction: column; }
.fm-header { padding: 20px; background-color: var(--bg-light); border-bottom: 1px solid var(--bg-dark); border-radius: 12px 12px 0 0; }
.header-top { display: flex; justify-content: space-between; align-items: center; }
.fm-header h1 { margin: 0; color: var(--accent-blue); font-size: 1.8em; display: flex; align-items: center; gap: 10px; }
.logo-container { width: 75px; height: 75px; }
.logo-container img { width: 100%; height: 100%; border-radius: 8px; border: 2px solid var(--accent-blue); padding: 3px; background-color: var(--bg-dark); box-sizing: border-box; }
.breadcrumb { margin-top: 10px; color: var(--text-medium); font-size: 0.9em; }
.breadcrumb a { color: #90cdf4; text-decoration: none; transition: color 0.2s; }
.breadcrumb a:hover { color: var(--text-light); }
.toolbar-main { margin-top: 15px; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.toolbar { display: flex; gap: 10px; }
.toolbar button { background-color: var(--accent-blue); color: white; border: none; padding: 8px 15px; border-radius: 6px; cursor: pointer; font-size: 0.9em; font-weight: 500; display: flex; align-items: center; gap: 8px; transition: background-color 0.2s; }
.toolbar button:hover { background-color: var(--accent-blue-dark); }
.search-and-view { display: flex; align-items: center; gap: 15px; }
.search-container { position: relative; display: flex; align-items: center; }
.search-container .fa-search { position: absolute; left: 12px; color: var(--text-medium); }
#search-input { background-color: var(--bg-dark); border: 1px solid var(--border-color); border-radius: 6px; color: var(--text-light); padding: 8px 12px 8px 35px; width: 250px; transition: border-color 0.2s; }
#search-input:focus { border-color: var(--accent-blue); outline: none; }
.view-toggle button { background-color: var(--bg-dark); color: var(--text-medium); border: 1px solid var(--border-color); padding: 8px 12px; border-radius: 6px; cursor: pointer; transition: all 0.2s; }
.view-toggle button:hover { color: var(--text-light); border-color: var(--accent-blue); }
.view-toggle button.active { background-color: var(--accent-blue); color: white; border-color: var(--accent-blue); }
.fm-main-content { display: flex; flex-grow: 1; overflow: hidden; }
.fm-body { padding: 0 10px 10px 10px; flex-grow: 1; display: flex; flex-direction: column; overflow: hidden; position: relative; }
.file-list-header { display: flex; padding: 10px 20px; font-weight: bold; color: var(--text-medium); border-bottom: 1px solid var(--bg-light); flex-shrink: 0; align-items: center; }
.file-list-header > div { white-space: nowrap; }
.file-list-header .sortable { cursor: pointer; transition: color 0.2s; }
.file-list-header .sortable:hover { color: var(--text-light); }
.file-list-header .sortable .fa-sort, .file-list-header .sortable .fa-sort-up, .file-list-header .sortable .fa-sort-down { margin-left: 5px; }
.col-check { width: 40px; text-align: center; flex-shrink: 0; }
.col-name { flex: 1; }
.col-type { width: 150px; flex-shrink: 0; }
.col-perms { width: 100px; flex-shrink: 0; text-align: center; margin-right: 20px; }
.col-modified { width: 180px; flex-shrink: 0; }
.col-size { width: 120px; text-align: right; flex-shrink: 0; }
.file-list { list-style: none; padding: 10px; margin: 0; overflow-y: auto; flex-grow: 1; position: relative; }
.file-list.grid-view { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 15px; align-content: start; }
.file-item, .go-up-item { display: flex; align-items: center; padding: 12px 20px; border-bottom: 1px solid var(--bg-light); transition: background-color 0.2s; cursor: pointer; }
.file-list.grid-view .file-item, .file-list.grid-view .go-up-item { flex-direction: column; padding: 15px; border: 1px solid transparent; border-radius: 8px; text-align: center; height: 120px; justify-content: center; border-bottom: none; }
.file-list.grid-view .file-item:hover, .file-list.grid-view .go-up-item:hover { background-color: var(--bg-light); border-color: var(--border-color); }
.file-item.selected, .file-list.grid-view .file-item.selected { background-color: var(--accent-blue-dark); }
.file-item .col-name { display: flex; align-items: center; gap: 10px; overflow: hidden; }
.file-list.grid-view .col-name { flex-direction: column; gap: 10px; font-size: 0.9em; }
.file-list.grid-view .col-name span { word-break: break-all; }
.file-item .col-name i { font-size: 1.2em; }
.file-list.grid-view .col-name i { font-size: 2.5em; margin-bottom: 10px; }
.file-list.grid-view .col-check, .file-list.grid-view .col-type, .file-list.grid-view .col-perms, .file-list.grid-view .col-modified, .file-list.grid-view .col-size { display: none; }
.file-item .col-perms { font-family: 'Courier New', Courier, monospace; }
.fa-folder { color: var(--accent-yellow); }
.fa-level-up-alt { color: var(--accent-green); }
.fa-python { color: var(--icon-py); }
.fa-js-square { color: var(--icon-js); }
.fa-html5 { color: var(--icon-html); }
.fa-css3-alt { color: var(--icon-css); }
.fa-file-image { color: var(--icon-img); }
.fa-file-pdf { color: var(--icon-pdf); }
.fa-file-archive { color: var(--icon-zip); }
.fa-file-audio { color: var(--icon-audio); }
.fa-file-video { color: var(--icon-video); }
.file-item .fa-file-alt, .file-item .fa-file-code { color: var(--accent-blue); }
.item-type, .item-perms, .item-modified, .item-size { color: var(--text-medium); font-size: 0.9em; white-space: nowrap; }
.empty-folder-message { display: none; flex-direction: column; justify-content: center; align-items: center; height: 100%; color: var(--text-medium); }
.empty-folder-message .fa-folder-open { font-size: 5em; margin-bottom: 20px; }
.empty-folder-message h2 { color: var(--text-light); }
.drag-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(99, 179, 237, 0.2); border: 3px dashed var(--accent-blue); z-index: 9999; display: none; justify-content: center; align-items: center; pointer-events: none; }
.drag-overlay.visible { display: flex; }
.drag-overlay-content { text-align: center; color: var(--text-light); }
.drag-overlay-content .fa-cloud-upload-alt { font-size: 6em; }
.drag-overlay-content h2 { margin-top: 20px; font-size: 2em; }
.preview-panel { width: 0; flex-shrink: 0; background-color: var(--bg-light); border-left: 1px solid var(--bg-dark); transition: width 0.3s ease; overflow: hidden; }
.preview-panel.visible { width: 300px; }
.preview-placeholder { display: flex; flex-direction: column; justify-content: center; align-items: center; height: 100%; color: var(--text-medium); }
.preview-placeholder .fa-eye { font-size: 4em; }
.preview-content { display: none; flex-direction: column; height: 100%; }
.preview-panel.visible .preview-placeholder { display: none; }
.preview-panel.visible .preview-content { display: flex; }
#preview-header { padding: 15px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-color); }
#preview-header h3 { margin: 0; word-break: break-all; }
#preview-visual { flex-shrink: 0; padding: 15px; text-align: center; }
#preview-visual img, #preview-visual canvas { max-width: 100%; border-radius: 8px; }
#preview-visual pre { max-height: 200px; overflow-y: auto; text-align: left; background-color: var(--bg-dark); padding: 10px; border-radius: 6px; font-size: 0.8em; white-space: pre-wrap; }
#preview-visual i { font-size: 6em; color: var(--text-medium); }
#preview-details { padding: 15px; color: var(--text-light); overflow-y: auto; }
#preview-details p { margin: 0 0 10px 0; }
#preview-details strong { color: var(--text-medium); }
.pdf-viewer .modal-body { display: flex; justify-content: center; align-items: center; background-color: var(--bg-dark); }
#pdf-canvas { max-width: 100%; max-height: 100%; }
.pdf-footer { justify-content: center; align-items: center; }
.media-viewer .modal-body { display: flex; justify-content: center; align-items: center; background-color: #000; padding: 0; }
#media-modal-body video, #media-modal-body audio { max-width: 100%; max-height: calc(90vh - 120px); outline: none; }
.loader-container { display: none; justify-content: center; align-items: center; position: absolute; top: 50px; left: 0; right: 0; bottom: 0; background: rgba(45, 55, 72, 0.7); z-index: 100; }
.spinner { border: 4px solid rgba(255, 255, 255, 0.3); border-radius: 50%; border-top: 4px solid var(--accent-blue); width: 40px; height: 40px; animation: spin 1s linear infinite; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
.modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.85); justify-content: center; align-items: center; animation: fadeIn 0.3s; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideIn { from { transform: translateY(-30px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-content { background-color: var(--bg-medium); border-radius: 8px; width: 90%; box-shadow: 0 5px 20px rgba(0,0,0,0.5); display: flex; flex-direction: column; animation: slideIn 0.3s; border-top: 4px solid var(--accent-blue); }
.modal-content.wide { max-width: 90vw; }
.modal-content.small { max-width: 400px; }
.modal-header { padding: 15px 20px; border-bottom: 1px solid var(--bg-light); display: flex; justify-content: space-between; align-items: center; }
.modal-header h2 { margin: 0; color: var(--text-light); font-size: 1.2em; display: flex; align-items: center; gap: 10px; }
.modal-header h2 .fa-exclamation-triangle { color: var(--accent-yellow); }
.close-button { color: var(--text-medium); font-size: 28px; font-weight: bold; cursor: pointer; transition: color 0.2s; }
.close-button:hover { color: var(--text-light); }
.modal-body p { margin: 0 0 10px 0; color: var(--text-medium); line-height: 1.5; }
.modal-input { width: 100%; padding: 10px; border-radius: 6px; border: 1px solid var(--border-color); background-color: var(--bg-dark); color: var(--text-light); font-size: 1em; box-sizing: border-box; margin-top: 10px; }
.modal-footer { padding: 15px 20px; background-color: var(--bg-light); border-radius: 0 0 8px 8px; text-align: right; display: flex; justify-content: flex-end; gap: 10px; }
.btn { border: none; padding: 10px 18px; border-radius: 6px; cursor: pointer; font-size: 0.95em; font-weight: 500; transition: background-color 0.2s, transform 0.1s; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background-color: var(--accent-green); color: white; }
.btn-primary:hover { background-color: var(--accent-green-dark); }
.btn-secondary { background-color: var(--bg-light); color: var(--text-light); border: 1px solid var(--border-color); }
.btn-secondary:hover { background-color: #5a6b87; }
.btn-danger { background-color: var(--accent-red); color: white; }
.btn-danger:hover { background-color: var(--accent-red-dark); }
.CodeMirror { height: 65vh; border: 1px solid var(--bg-light); border-radius: 6px; }
.CodeMirror-gutters { background: #212529 !important; }
.image-viewer .modal-content { margin: auto; display: block; width: auto; max-width: 90%; max-height: 80%; background: none; box-shadow: none; animation: zoomIn 0.3s; border: none; }
.image-viewer .close-button { position: absolute; top: 15px; right: 35px; color: #f1f1f1; font-size: 40px; }
#image-modal-caption { margin: auto; display: block; width: 80%; max-width: 700px; text-align: center; color: #ccc; padding: 10px 0; }
.context-menu { position: absolute; z-index: 1500; background-color: var(--bg-light); border-radius: 6px; box-shadow: 0 5px 15px rgba(0,0,0,0.3); padding: 5px 0; display: none; min-width: 150px; }
.context-menu ul { list-style: none; padding: 0; margin: 0; }
.context-menu ul li { padding: 10px 20px; cursor: pointer; display: flex; align-items: center; gap: 10px; }
.context-menu ul li:hover { background-color: var(--accent-blue-dark); }
.context-menu ul li.delete:hover { background-color: var(--accent-red); }
#toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 2000; }
.toast { background-color: var(--bg-light); color: var(--text-light); padding: 15px 20px; border-radius: 6px; margin-top: 10px; box-shadow: 0 3px 10px rgba(0,0,0,0.3); border-left: 4px solid var(--accent-green); animation: slideInRight 0.5s, fadeOut 0.5s 4.5s; }
@keyframes slideInRight { from { transform: translateX(100%); } to { transform: translateX(0); } }
@keyframes fadeOut { from { opacity: 1; } to { opacity: 0; } }
.toast.error { border-left-color: var(--accent-red); }
.floating-action-bar { position: fixed; bottom: -100px; left: 50%; transform: translateX(-50%); background-color: var(--bg-light); padding: 10px 20px; border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.4); display: flex; align-items: center; gap: 15px; transition: bottom 0.3s ease-in-out; z-index: 100; }
.floating-action-bar.visible { bottom: 30px; }
#selection-count { font-weight: bold; }
.floating-action-bar button { background: var(--accent-blue); color: white; border: none; padding: 8px 15px; border-radius: 6px; cursor: pointer; }
.floating-action-bar button.danger { background-color: var(--accent-red); }
.tree-container { height: 50vh; overflow-y: auto; border: 1px solid var(--border-color); border-radius: 6px; padding: 10px; background-color: var(--bg-dark); }
.tree-container ul { list-style: none; padding-left: 20px; }
.tree-container li { padding: 5px; }
.tree-node { cursor: pointer; display: flex; align-items: center; gap: 8px; padding: 4px 8px; border-radius: 4px; transition: background-color 0.2s; }
.tree-node:hover { background-color: var(--bg-light); }
.tree-node.selected { background-color: var(--accent-blue-dark); color: white; }
.tree-node .fa-folder { color: var(--accent-yellow); }

/* ============= NEW ENHANCEMENTS ============= */

/* Selected Item Visual Highlight */
.file-item.selected-item {
    background-color: rgba(99, 179, 237, 0.2) !important;
    border-left: 3px solid var(--accent-blue);
    transition: all 0.2s ease;
}

/* Checkbox Fade-in Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.file-item-checkbox.checkbox-fade-in {
    animation: fadeIn 0.2s ease-out;
}

/* Copy Path Button in Breadcrumb */
.btn-copy-path {
    background-color: var(--bg-dark);
    color: var(--accent-blue);
    border: 1px solid var(--accent-blue);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 10px;
    transition: all 0.2s;
    font-size: 0.85em;
}

.btn-copy-path:hover {
    background-color: var(--accent-blue);
    color: white;
}

/* Upload Progress Modal */
.progress-container {
    width: 100%;
    height: 24px;
    background-color: var(--bg-dark);
    border-radius: 12px;
    overflow: hidden;
    margin: 15px 0;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
    border-radius: 12px;
    transition: width 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.85em;
    font-weight: bold;
}

#upload-progress-text {
    text-align: center;
    color: var(--text-medium);
    font-size: 0.9em;
}

/* Editor Enhancements */
.modal-header .editor-controls {
    display: flex;
    gap: 8px;
    margin: 0 auto;
}

.editor-controls .btn-sm {
    background-color: var(--bg-dark);
    color: var(--accent-blue);
    border: 1px solid var(--accent-blue);
    padding: 6px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.85em;
}

.editor-controls .btn-sm:hover,
.editor-controls .btn-sm.active {
    background-color: var(--accent-blue);
    color: white;
}

.modal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.editor-info {
    display: flex;
    gap: 20px;
    color: var(--text-medium);
    font-size: 0.85em;
}

.editor-actions {
    display: flex;
    gap: 10px;
}

/* Invert Selection Button */
#btn-invert-selection {
    background-color: var(--accent-green) !important;
}

#btn-invert-selection:hover {
    background-color: var(--accent-green-dark) !important;
}

/* Enhanced file item hover */
.file-item:hover {
    background-color: rgba(99, 179, 237, 0.1);
    transform: translateX(2px);
    transition: all 0.2s ease;
}

/* CodeMirror search addon styling */
.CodeMirror-search-field {
    background-color: var(--bg-dark) !important;
    color: var(--text-light) !important;
    border: 1px solid var(--border-color) !important;
    padding: 4px 8px !important;
    border-radius: 4px !important;
}

.CodeMirror-dialog {
    background-color: var(--bg-medium) !important;
    color: var(--text-light) !important;
}

.CodeMirror-dialog button {
    background-color: var(--accent-blue) !important;
    color: white !important;
    border: none !important;
    padding: 4px 10px !important;
    border-radius: 4px !important;
    cursor: pointer !important;
}

/* Operation Progress Display */
.operation-progress {
    padding: 20px;
    text-align: center;
}

.operation-progress .progress-container {
    margin: 20px 0;
}

.operation-progress #operation-progress-text {
    color: var(--text-light);
    font-size: 1em;
    margin-top: 10px;
}

/* Operation Modal Styles */
.operation-summary {
    background-color: var(--bg-dark);
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 15px;
}

.operation-summary p {
    margin: 5px 0;
    color: var(--text-light);
}

.operation-summary strong {
    color: var(--accent-blue);
    display: inline-block;
    width: 80px;
}

#operation-current-item {
    color: var(--accent-yellow);
    font-weight: 500;
    margin-top: 10px;
    font-size: 0.95em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#operation-current-item span {
    color: var(--text-light);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85em;
}

#operation-details-toggle {
    width: 100%;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

#operation-details-toggle i {
    transition: transform 0.3s ease;
}

#operation-details-toggle.expanded i {
    transform: rotate(180deg);
}

.operation-details {
    max-height: 300px;
    overflow-y: auto;
    background-color: var(--bg-dark);
    border-radius: 6px;
    margin-top: 10px;
    padding: 10px;
}

#operation-items-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

#operation-items-list li {
    padding: 8px 10px;
    border-bottom: 1px solid var(--bg-light);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9em;
}

#operation-items-list li:last-child {
    border-bottom: none;
}

#operation-items-list li i {
    font-size: 1.1em;
}

#operation-items-list li.completed {
    color: var(--accent-green);
}

#operation-items-list li.processing {
    color: var(--accent-yellow);
    font-weight: 500;
}

#operation-items-list li.pending {
    color: var(--text-medium);
}

#operation-items-list li.error {
    color: var(--accent-red);
}

#operation-items-list li .item-status {
    margin-left: auto;
    font-size: 0.85em;
}


/* Input Focus Enhancement */
input[type="text"]:focus,
input[type="text"].modal-input:focus,
textarea:focus {
    border-color: var(--accent-blue) !important;
    outline: none !important;
    box-shadow: 0 0 0 3px rgba(99, 179, 237, 0.2);
}

/* Auto-focus indicator */
input[type="text"],
input[type="text"].modal-input,
textarea {
    transition: border-color 0.2s, box-shadow 0.2s;
}

/* Enter key helper text */
.modal-body .key-hint {
    font-size: 0.85em;
    color: var(--text-medium);
    margin-top: 8px;
    font-style: italic;
}

/* Disabled button state */
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

button:disabled:hover {
    transform: none !important;
}