:root{--color-primary: #0061FE;--color-primary-hover: #0052D4;--color-primary-light: #E6F0FF;--color-text-primary: #1E1F21;--color-text-secondary: #5B616A;--color-bg-body: #F7F9FA;--color-bg-card: #FFFFFF;--color-border: #E8EBED;--color-hover: #F2F5F7;--color-active: #E6F0FF;--color-danger: #D62B2B;--color-danger-hover: #B51D1D;--color-danger-light: #FDF2F2;--color-success: #097138;--color-success-light: #EBF7EE;--font-stack: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--border-radius: 4px;--box-shadow: 0 1px 3px rgba(0, 0, 0, .05), 0 1px 2px rgba(0, 0, 0, .08)}*{box-sizing:border-box;margin:0;padding:0}body,html,#root{width:100%;height:100%;font-family:var(--font-stack);background-color:var(--color-bg-body);color:var(--color-text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow:hidden}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spinner{animation:spin .8s linear infinite}.login-layout{display:flex;justify-content:center;align-items:center;width:100%;height:100%;background-color:var(--color-bg-body)}.login-card{width:100%;max-width:420px;background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:6px;padding:40px;box-shadow:var(--box-shadow)}.login-header{text-align:center;margin-bottom:30px}.login-header h1{font-size:24px;font-weight:600;margin-top:16px;margin-bottom:8px}.login-header p{font-size:14px;color:var(--color-text-secondary);line-height:1.5}.login-header a{color:var(--color-primary);text-decoration:none}.login-header a:hover{text-decoration:underline}.login-form{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-size:13px;font-weight:600;color:var(--color-text-primary)}.form-group input{height:40px;padding:0 12px;border:1px solid #BAC4CC;border-radius:var(--border-radius);font-family:inherit;font-size:14px;outline:none;transition:border-color .15s ease}.form-group input:focus{border-color:var(--color-primary);box-shadow:0 0 0 2px var(--color-primary-light)}.error-alert{padding:10px 12px;background-color:var(--color-danger-light);border:1px solid #F3C9C9;border-radius:var(--border-radius);color:var(--color-danger);font-size:13px}.btn-primary{display:inline-flex;justify-content:center;align-items:center;height:40px;padding:0 20px;background-color:var(--color-primary);color:#fff;border:none;border-radius:var(--border-radius);font-family:inherit;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .15s ease}.btn-primary:hover{background-color:var(--color-primary-hover)}.btn-primary:disabled{background-color:#a0c3ff;cursor:not-allowed}.btn-secondary{display:inline-flex;justify-content:center;align-items:center;height:40px;padding:0 20px;background-color:#fff;color:var(--color-text-primary);border:1px solid var(--color-border);border-radius:var(--border-radius);font-family:inherit;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .15s ease}.btn-secondary:hover{background-color:var(--color-hover)}.form-actions-split{display:grid;grid-template-columns:1fr 2fr;gap:12px}.loading-screen{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:16px;width:100%;height:100%;background-color:var(--color-bg-body);color:var(--color-text-secondary)}.app-layout{display:flex;width:100%;height:100%;background-color:var(--color-bg-body)}.sidebar{width:260px;border-right:1px solid var(--color-border);background-color:var(--color-bg-card);display:flex;flex-direction:column;flex-shrink:0;height:100%}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:24px;font-size:20px;font-weight:700;color:var(--color-text-primary);border-bottom:1px solid var(--color-border)}.sidebar-search{position:relative;margin:16px 16px 8px}.sidebar-search .search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--color-text-secondary)}.sidebar-search input{width:100%;height:36px;padding:0 12px 0 36px;border:1px solid var(--color-border);border-radius:var(--border-radius);background-color:var(--color-bg-body);font-family:inherit;font-size:13px;outline:none}.sidebar-search input:focus{background-color:#fff;border-color:var(--color-primary)}.sidebar-nav-title{font-size:11px;font-weight:700;text-transform:uppercase;color:var(--color-text-secondary);padding:16px 24px 8px;letter-spacing:.5px}.sidebar-folders-container{flex-grow:1;overflow-y:auto;padding:0 8px}.sidebar-loading,.sidebar-empty{display:flex;align-items:center;justify-content:center;gap:8px;font-size:13px;color:var(--color-text-secondary);padding:24px 0}.sidebar-folders{display:flex;flex-direction:column;gap:2px}.folder-item-btn{display:flex;align-items:center;gap:12px;height:38px;padding:0 16px;border:none;background:none;border-radius:var(--border-radius);color:var(--color-text-primary);font-family:inherit;font-size:14px;text-align:left;cursor:pointer;width:100%;transition:background-color .15s ease}.folder-item-btn:hover{background-color:var(--color-hover)}.folder-item-btn.active{background-color:var(--color-primary-light);color:var(--color-primary);font-weight:500}.folder-item-btn .folder-icon{flex-shrink:0;color:#7b849c}.folder-item-btn.active .folder-icon{color:var(--color-primary)}.folder-name{flex-grow:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.unread-badge{font-size:10px;font-weight:700;background-color:var(--color-primary);color:#fff;padding:2px 6px;border-radius:10px}.sidebar-footer{padding:16px;border-top:1px solid var(--color-border)}.btn-logout{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;height:38px;border:1px solid var(--color-border);border-radius:var(--border-radius);background-color:#fff;color:var(--color-text-secondary);font-family:inherit;font-size:13px;font-weight:500;cursor:pointer}.btn-logout:hover{background-color:var(--color-danger-light);color:var(--color-danger);border-color:#f3c9c9}.main-content{flex-grow:1;display:flex;flex-direction:column;height:100%;overflow:hidden}.main-header{height:64px;border-bottom:1px solid var(--color-border);background-color:var(--color-bg-card);display:flex;align-items:center;justify-content:space-between;padding:0 24px;flex-shrink:0}.header-breadcrumbs{display:flex;align-items:center;font-size:14px}.crumb-root{color:var(--color-text-secondary);font-weight:400}.crumb-separator{color:var(--color-text-secondary);margin:0 8px}.crumb-active{color:var(--color-text-primary);font-weight:600}.search-files{position:relative;width:280px}.search-files .search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--color-text-secondary);pointer-events:none}.search-files input{width:100%;height:36px;padding:0 12px 0 36px;border:1px solid var(--color-border);border-radius:var(--border-radius);font-family:inherit;font-size:13px;outline:none}.search-files input:focus{border-color:var(--color-primary)}.toolbar{padding:24px;background-color:var(--color-bg-card);border-bottom:1px solid var(--color-border);display:flex;justify-content:space-between;align-items:center;gap:20px;flex-shrink:0}.toolbar-title-section h2{font-size:20px;font-weight:600;margin-bottom:4px}.toolbar-subtitle{font-size:13px;color:var(--color-text-secondary)}.toolbar-actions{display:flex;align-items:center;gap:12px}.btn-toolbar-primary{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;background-color:var(--color-primary);color:#fff;border:none;border-radius:var(--border-radius);font-family:inherit;font-size:13px;font-weight:500;cursor:pointer}.btn-toolbar-primary:hover{background-color:var(--color-primary-hover)}.btn-toolbar-secondary{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;background-color:#fff;color:var(--color-text-primary);border:1px solid var(--color-border);border-radius:var(--border-radius);font-family:inherit;font-size:13px;font-weight:500;cursor:pointer}.btn-toolbar-secondary:hover{background-color:var(--color-hover)}.url-upload-form{display:flex;border:1px solid var(--color-border);border-radius:var(--border-radius);overflow:hidden;height:36px}.url-upload-form input{width:320px;border:none;padding:0 12px;font-family:inherit;font-size:13px;outline:none}.url-upload-form button{border:none;border-left:1px solid var(--color-border);border-radius:0;height:100%}.files-container{flex-grow:1;overflow-y:auto;background-color:#fff}.files-loading{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:60px 0;color:var(--color-text-secondary);font-size:14px}.files-empty{display:flex;flex-direction:column;justify-content:center;align-items:center;padding:80px 24px;text-align:center;color:var(--color-text-secondary)}.files-empty h3{font-size:18px;font-weight:500;color:var(--color-text-primary);margin-top:16px;margin-bottom:8px}.files-empty p{font-size:14px;max-width:380px;line-height:1.5}.files-table{width:100%;border-collapse:collapse;text-align:left}.files-table th{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--color-text-secondary);padding:12px 24px;border-bottom:1px solid var(--color-border)}.files-table td{padding:12px 24px;border-bottom:1px solid var(--color-border);font-size:14px;color:var(--color-text-primary)}.file-row{cursor:pointer;transition:background-color .15s ease}.file-row:hover{background-color:var(--color-hover)}.col-name{width:50%}.file-name-cell{display:flex;align-items:center;gap:16px;font-weight:500}.file-name-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:480px}.icon-video{color:#a82a2a}.icon-image{color:#2a8ea8}.icon-audio{color:#2a5ba8}.icon-doc{color:#5f6b7c}.col-size{width:15%;color:var(--color-text-secondary)}.col-date{width:20%;color:var(--color-text-secondary)}.col-actions{width:15%}.actions-cell{display:flex;align-items:center;justify-content:flex-end;gap:6px}.btn-icon{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid transparent;border-radius:var(--border-radius);background:none;color:var(--color-text-secondary);cursor:pointer;transition:all .15s ease}.btn-icon:hover{background-color:#e8ebed;color:var(--color-text-primary);border-color:#d3d8dc}.btn-icon.danger:hover{background-color:var(--color-danger-light);color:var(--color-danger);border-color:#f3c9c9}.upload-status-widget{position:absolute;bottom:24px;right:24px;width:320px;background-color:var(--color-bg-card);border:1px solid #BAC4CC;border-radius:6px;box-shadow:0 4px 12px #0000001a;overflow:hidden;display:flex;flex-direction:column;max-height:360px;z-index:100}.widget-header{padding:12px 16px;background-color:var(--color-bg-body);border-bottom:1px solid var(--color-border);display:flex;justify-content:space-between;align-items:center}.widget-header h3{font-size:14px;font-weight:600}.uploads-count{font-size:11px;font-weight:700;background-color:var(--color-text-secondary);color:#fff;padding:2px 6px;border-radius:10px}.widget-list{overflow-y:auto;padding:8px 0}.upload-progress-item{padding:12px 16px;display:flex;flex-direction:column;gap:8px;border-bottom:1px solid var(--color-border)}.upload-progress-item:last-child{border-bottom:none}.item-meta{display:flex;justify-content:space-between;align-items:center;gap:12px}.item-name{font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex-grow:1}.item-status-text{font-size:12px;font-weight:600;display:flex;align-items:center;gap:4px}.item-status-text.completed{color:var(--color-success)}.item-status-text.failed{color:var(--color-danger)}.item-status-text.uploading{color:var(--color-primary)}.item-status-text.connecting{color:var(--color-text-secondary)}.progress-bar-bg{height:6px;background-color:var(--color-hover);border-radius:3px;overflow:hidden}.progress-bar-fill{height:100%;background-color:var(--color-primary);border-radius:3px;transition:width .3s ease}.error-text{font-size:11px;color:var(--color-danger);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.preview-backdrop{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#1e1f2180;display:flex;justify-content:center;align-items:center;z-index:1000}.preview-modal{width:90%;max-width:960px;height:85%;background-color:#fff;border-radius:6px;box-shadow:0 8px 30px #00000026;display:flex;flex-direction:column;overflow:hidden}.preview-header{height:72px;border-bottom:1px solid var(--color-border);padding:0 24px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0}.preview-title-info{display:flex;align-items:center;gap:16px;max-width:60%}.preview-title-info h2{font-size:16px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}.preview-title-info p{font-size:12px;color:var(--color-text-secondary)}.preview-actions{display:flex;align-items:center;gap:12px}.btn-icon-close{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;background:none;color:var(--color-text-secondary);cursor:pointer;border-radius:50%}.btn-icon-close:hover{background-color:var(--color-hover);color:var(--color-text-primary)}.preview-body{flex-grow:1;background-color:#1e1f21;display:flex;justify-content:center;align-items:center;overflow:hidden;position:relative}.preview-image-container{max-width:100%;max-height:100%;display:flex;justify-content:center;align-items:center;padding:24px}.preview-image-container img{max-width:100%;max-height:100%;object-fit:contain;box-shadow:0 4px 12px #00000080;background-color:#2f3136}.preview-video-container{width:100%;height:100%;background-color:#000;display:flex;justify-content:center;align-items:center}.preview-video-container video{width:100%;height:100%;max-height:100%;object-fit:contain}.preview-pdf-container{width:100%;height:100%;background-color:#fff}.preview-pdf-container iframe{width:100%;height:100%;border:none}.preview-text-container{width:100%;height:100%;padding:24px;overflow:auto;background-color:#1a1a1a;color:#e3e3e3;text-align:left}.preview-text-container pre{font-family:Courier New,Courier,monospace;font-size:13px;line-height:1.6;white-space:pre-wrap}.preview-loading{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:12px;color:#fff}.preview-fallback{display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:#bac4cc;padding:40px}.preview-fallback h3{color:#fff;font-size:18px;margin-top:16px;margin-bottom:8px;font-weight:500}.preview-fallback p{font-size:14px;max-width:320px;line-height:1.5}.files-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:20px;padding:24px;background-color:var(--color-bg-card)}.grid-item-card{display:flex;flex-direction:column;background-color:#fff;border:1px solid var(--color-border);border-radius:var(--border-radius);padding:12px;cursor:pointer;transition:all .15s ease;position:relative}.grid-item-card:hover{border-color:#bac4cc;box-shadow:var(--box-shadow);background-color:var(--color-hover)}.grid-thumbnail-container{width:100%;height:120px;background-color:var(--color-bg-body);border-radius:var(--border-radius);overflow:hidden;display:flex;align-items:center;justify-content:center;position:relative;margin-bottom:10px}.grid-thumbnail-container img{width:100%;height:100%;object-fit:cover}.grid-icon-fallback{color:var(--color-text-secondary)}.grid-play-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:44px;height:44px;background-color:#1e1f2199;border-radius:50%;display:flex;align-items:center;justify-content:center;pointer-events:none;transition:background-color .15s ease}.grid-item-card:hover .grid-play-overlay{background-color:#0061fed9}.grid-item-info{display:flex;flex-direction:column;margin-bottom:8px;flex-grow:1}.grid-item-name{font-size:13px;font-weight:500;color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.grid-item-size{font-size:11px;color:var(--color-text-secondary);margin-top:2px}.grid-item-actions{display:flex;align-items:center;justify-content:flex-end;gap:6px;border-top:1px solid var(--color-border);padding-top:8px}.view-mode-toggle button.active{background-color:var(--color-hover)!important;color:var(--color-primary)!important;border-color:#bac4cc!important}@media (max-width: 900px){.app-layout{flex-direction:column}.sidebar{width:100%;height:200px;border-right:none;border-bottom:1px solid var(--color-border)}.toolbar{flex-direction:column;align-items:stretch;gap:12px}.toolbar-actions{flex-direction:column;align-items:stretch}.url-upload-form input{width:100%}}