:root{--color-primary: #FF9900;--color-primary-hover: #EC7211;--color-bg: #FFFFFF;--color-bg-secondary: #FAFAFA;--color-bg-tertiary: #F2F3F3;--color-text: #16191F;--color-text-muted: #545B64;--color-text-inverse: #FFFFFF;--color-border: #D5DBDB;--color-border-strong: #AAB7B8;--color-success: #1D8102;--color-error: #D13212;--color-warning: #FF9900;--color-info: #0073BB;--color-focus: #FF9900;--color-sidebar-bg: #232F3E;--color-sidebar-text: #D5DBDB;--color-sidebar-text-active: #FFFFFF;--color-sidebar-accent: #FF9900;--color-row-hover: #F7F8F8;--color-row-alt: #FAFAFA;--color-selection: #E6F2FF;--font-sans: "Amazon Ember", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--font-mono: "SF Mono", "Fira Code", Consolas, monospace;--fs-xs: 11px;--fs-sm: 13px;--fs-base: 14px;--fs-md: 16px;--fs-lg: 20px;--fs-xl: 28px;--fw-regular: 400;--fw-medium: 500;--fw-bold: 700;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow-md: 0 4px 12px rgba(0,0,0,.08);--shadow-lg: 0 8px 24px rgba(0,0,0,.12);--shadow-focus: 0 0 0 2px #FF9900;--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease;--sidebar-width: 250px;--sidebar-collapsed: 0px;--detail-width: 300px;--topbar-height: 56px;--spacing-0: 0px;--spacing-1: 4px;--spacing-2: 8px;--spacing-3: 12px;--spacing-4: 16px;--spacing-5: 20px;--spacing-6: 24px;--spacing-7: 32px;--spacing-8: 40px;--spacing-9: 48px;--spacing-10: 64px}@keyframes skeleton-pulse{0%,to{opacity:.4}50%{opacity:.8}}@keyframes fade-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes slide-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes scale-in{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes toast-in{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}@keyframes spin{to{transform:rotate(360deg)}}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);font-weight:var(--fw-medium);cursor:pointer;white-space:nowrap;border:none;background:transparent;transition:background var(--transition-fast),box-shadow var(--transition-fast),opacity var(--transition-fast)}.btn:disabled{cursor:not-allowed;opacity:.5}.btn-sm{padding:4px 8px;font-size:var(--fs-sm);gap:4px}.btn-md{padding:6px 12px;font-size:var(--fs-base);gap:6px}.btn-lg{padding:10px 20px;font-size:var(--fs-md);gap:8px}.btn-primary{background:var(--color-primary);color:var(--color-text-inverse)}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:transparent;color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-bg-tertiary);border-color:var(--color-border-strong)}.btn-ghost{background:transparent;color:var(--color-text-muted)}.btn-ghost:hover:not(:disabled){background:var(--color-bg-tertiary);color:var(--color-text)}.btn-danger{background:var(--color-error);color:var(--color-text-inverse)}.btn-danger:hover:not(:disabled){background:#b52a0f}.btn-full{width:100%}.btn-icon{background:none;border:none;cursor:pointer;padding:2px;display:flex;align-items:center;color:var(--color-text-muted)}.btn-icon:hover{color:var(--color-text)}.btn-link{background:none;border:none;cursor:pointer;padding:2px 6px;font-size:var(--fs-xs);color:var(--color-text-muted);border-radius:var(--radius-sm)}.btn-link:hover{background:var(--color-bg-tertiary);color:var(--color-text)}.input-wrap{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:10px;color:var(--color-text-muted);pointer-events:none;display:flex}.input{width:100%;padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--fs-base);color:var(--color-text);background:var(--color-bg);outline:none;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input:focus{border-color:var(--color-primary);box-shadow:var(--shadow-focus)}.input--has-icon{padding-left:36px}.input--error{border-color:var(--color-error)}.input--error:focus{box-shadow:0 0 0 2px var(--color-error)}.dialog-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:rgba(0,0,0,.5);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:9000;padding:16px;animation:fade-in var(--transition-fast)}.dialog-panel{background:var(--color-bg);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);max-width:480px;width:100%;max-height:85vh;overflow:auto;animation:scale-in var(--transition-base)}.dialog-header{padding:20px 24px 0;font-size:var(--fs-md);font-weight:var(--fw-bold)}.dialog-body{padding:12px 24px 20px}.dialog-footer{padding:12px 24px;border-top:1px solid var(--color-border);display:flex;justify-content:flex-end;gap:8px}.skeleton{border-radius:var(--radius-sm);background:var(--color-bg-tertiary);animation:skeleton-pulse 1.5s ease-in-out infinite}.skeleton-row{display:flex;align-items:center;height:40px;padding:0 12px;gap:12px}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:var(--radius-full);font-size:var(--fs-xs);font-weight:var(--fw-medium);line-height:1.4}.badge-default{background:var(--color-bg-tertiary);color:var(--color-text-muted)}.badge-success{background:var(--color-success);color:#fff}.badge-error{background:var(--color-error);color:#fff}.badge-warning{background:var(--color-warning);color:#fff}.badge-info{background:var(--color-info);color:#fff}.tooltip-wrap{position:relative;display:inline-flex}.tooltip-bubble{position:absolute;bottom:100%;left:50%;transform:translate(-50%);margin-bottom:6px;padding:4px 8px;background:var(--color-text);color:var(--color-text-inverse);font-size:var(--fs-xs);border-radius:var(--radius-sm);white-space:nowrap;pointer-events:none;z-index:9999;animation:fade-in .1s ease}.dropdown{position:relative;display:inline-block}.dropdown-menu{position:absolute;top:100%;left:0;margin-top:var(--spacing-1);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-md);z-index:100;min-width:180;padding:var(--spacing-1) 0;animation:fade-in var(--transition-fast)}.dropdown-item{display:flex;align-items:center;gap:var(--spacing-2);width:100%;padding:var(--spacing-2) var(--spacing-3);background:none;border:none;text-align:left;cursor:pointer;font-size:var(--fs-base);color:var(--color-text);transition:background var(--transition-fast)}.dropdown-item:hover{background:var(--color-bg-secondary)}.dropdown-item--danger{color:var(--color-error)}.dropdown-item:disabled{color:var(--color-text-muted);cursor:default;opacity:.5}.dropdown-item--focused{background:var(--color-bg-secondary)}.layout{display:flex;flex-direction:column;height:100%}.topbar{height:var(--topbar-height);border-bottom:1px solid var(--color-border);background:var(--color-bg);display:flex;align-items:center;padding:0 var(--spacing-4);gap:var(--spacing-3);flex-shrink:0}.topbar-spacer{flex:1}.topbar-email{font-size:var(--fs-sm);color:var(--color-text-muted);max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.layout-body{display:flex;flex:1;overflow:hidden}.sidebar{background:var(--color-sidebar-bg);color:var(--color-sidebar-text);overflow-y:auto;overflow-x:hidden;flex-shrink:0;transition:width var(--transition-base)}.sidebar--open{width:var(--sidebar-width);border-right:1px solid var(--color-border)}.sidebar--closed{width:0;border-right:none}.sidebar-placeholder{padding:var(--spacing-4)}.main-content{flex:1;overflow-y:auto;padding:var(--spacing-4);background:var(--color-bg)}.detail-panel{width:var(--detail-width);border-left:1px solid var(--color-border);overflow-y:auto;flex-shrink:0;background:var(--color-bg-secondary);padding:var(--spacing-4)}.filelist{display:flex;flex-direction:column;height:100%}.filelist-header{display:flex;border-bottom:2px solid var(--color-border);background:var(--color-bg-secondary);flex-shrink:0}.filelist-col-btn{flex:1;padding:8px 12px;border:none;background:transparent;text-align:left;font-weight:var(--fw-medium);font-size:var(--fs-sm);color:var(--color-text-muted);cursor:pointer;transition:color var(--transition-fast)}.filelist-col-btn:hover{color:var(--color-text)}.filelist-col-name{flex:3}.filelist-col-size{flex:1}.filelist-col-modified{flex:1.5}.filelist-col-type{flex:1}.filelist-scroll{flex:1;overflow-y:auto;position:relative}.filelist-virtual{position:relative}.filelist-row{position:absolute;left:0;right:0;height:40px;display:flex;align-items:center;border-bottom:1px solid var(--color-border);cursor:pointer;font-size:var(--fs-base);transition:background var(--transition-fast)}.filelist-row:hover{background:var(--color-row-hover)}.filelist-row--selected,.filelist-row--selected:hover{background:var(--color-selection)}.filelist-row--alt{background:var(--color-row-alt)}.filelist-cell{padding:0 12px;overflow:hidden}.filelist-cell-name{flex:3;display:flex;align-items:center;gap:8px}.filelist-cell-size{flex:1;color:var(--color-text-muted);font-family:var(--font-mono);font-size:var(--fs-sm)}.filelist-cell-modified{flex:1.5;color:var(--color-text-muted);font-size:var(--fs-sm)}.filelist-cell-type{flex:1;color:var(--color-text-muted);font-size:var(--fs-sm)}.filelist-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.filelist-name--folder{font-weight:var(--fw-medium)}.filegrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:var(--spacing-3);padding:var(--spacing-3)}.filegrid-card{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-2);padding:var(--spacing-4) var(--spacing-2);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:background var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast);text-align:center;background:var(--color-bg)}.filegrid-card:hover{background:var(--color-row-hover);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.filegrid-card--selected{background:var(--color-selection);border-color:var(--color-info)}.filegrid-card-name{font-size:var(--fs-sm);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.filegrid-card-meta{font-size:var(--fs-xs);color:var(--color-text-muted)}.file-icon{display:inline-flex}.breadcrumbs{display:flex;align-items:center;gap:4px;font-size:var(--fs-sm);flex-wrap:wrap}.breadcrumb-btn{border:none;background:transparent;padding:4px 6px;border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition-fast)}.breadcrumb-btn:hover{background:var(--color-bg-tertiary)}.breadcrumb-btn--link{color:var(--color-primary);font-weight:var(--fw-regular)}.breadcrumb-btn--current{color:var(--color-text);font-weight:var(--fw-medium)}.breadcrumb-sep{color:var(--color-text-muted)}.breadcrumb-ellipsis{color:var(--color-text-muted);padding:4px 2px}.browser-toolbar{display:flex;align-items:center;gap:var(--spacing-3);margin-bottom:var(--spacing-3);flex-shrink:0}.browser-content{display:flex;flex-direction:column;height:100%}.browser-bulk{margin-bottom:var(--spacing-2)}.browser-error{color:var(--color-error);padding:var(--spacing-4);background:var(--color-bg-secondary);border-radius:var(--radius-md);border:1px solid var(--color-error)}.searchbar{position:relative;flex:1;max-width:400px}.searchbar-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--color-text-muted);display:flex;pointer-events:none}.searchbar-input{width:100%;padding:var(--spacing-1) var(--spacing-7);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--fs-base);color:var(--color-text);background:var(--color-bg);outline:none;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.searchbar-input:focus{border-color:var(--color-primary);box-shadow:var(--shadow-focus)}.searchbar-input--active{border-color:var(--color-primary)}.searchbar-clear{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:transparent;border:none;color:var(--color-text-muted);cursor:pointer;padding:2px;display:flex}.searchbar-clear:hover{color:var(--color-text)}.bulk-toolbar{display:flex;align-items:center;gap:var(--spacing-3);padding:var(--spacing-2) var(--spacing-3);background:var(--color-selection);border-radius:var(--radius-md);border:1px solid var(--color-border);font-size:var(--fs-base);animation:fade-in var(--transition-fast)}.bulk-toolbar-count{font-weight:var(--fw-medium)}.bulk-toolbar-end{margin-left:auto}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-9);gap:var(--spacing-3);color:var(--color-text-muted);animation:fade-in var(--transition-base)}.empty-state-icon{color:var(--color-border-strong)}.empty-state-title{font-size:var(--fs-md);color:var(--color-text);font-weight:var(--fw-medium);margin:0}.empty-state-desc{margin:0;text-align:center;max-width:320px;font-size:var(--fs-base)}.empty-state-action{margin-top:var(--spacing-2)}.login-bg{display:grid;place-items:center;height:100vh;background:linear-gradient(135deg,var(--color-bg) 0%,var(--color-bg-tertiary) 50%,var(--color-bg-secondary) 100%)}.login-card{background:var(--color-bg);padding:var(--spacing-8);border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-lg);width:380px;display:flex;flex-direction:column;gap:var(--spacing-5);animation:scale-in var(--transition-base)}.login-logo{text-align:center;display:flex;flex-direction:column;align-items:center;gap:var(--spacing-2)}.login-logo-icon{color:var(--color-primary)}.login-title{font-size:var(--fs-lg);font-weight:var(--fw-bold);color:var(--color-text)}.login-subtitle{font-size:var(--fs-sm);color:var(--color-text-muted)}.login-alert{display:flex;align-items:center;gap:var(--spacing-2);color:var(--color-error);background:var(--color-bg-secondary);padding:var(--spacing-3);border-radius:var(--radius-sm);border:1px solid var(--color-error);font-size:var(--fs-sm)}.login-field{display:flex;flex-direction:column;gap:var(--spacing-1)}.login-label{font-size:var(--fs-sm);font-weight:var(--fw-medium);color:var(--color-text)}.login-input{padding:var(--spacing-2) var(--spacing-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--fs-base);color:var(--color-text);background:var(--color-bg);outline:none;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.login-input:focus{border-color:var(--color-primary);box-shadow:var(--shadow-focus)}.login-footer{text-align:center;font-size:var(--fs-sm);color:var(--color-text-muted)}.login-link{color:var(--color-primary);font-weight:var(--fw-medium)}.bucket-page{padding:var(--spacing-7);max-width:800px;margin:0 auto;animation:fade-in var(--transition-base)}.bucket-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-6)}.bucket-title{font-size:var(--fs-lg);font-weight:var(--fw-bold)}.bucket-form{display:flex;gap:var(--spacing-2);margin-bottom:var(--spacing-6);padding:var(--spacing-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg-secondary);animation:slide-up var(--transition-fast)}.bucket-form-input{flex:1;padding:var(--spacing-2) var(--spacing-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--fs-base);color:var(--color-text);background:var(--color-bg);outline:none}.bucket-form-input:focus{border-color:var(--color-primary);box-shadow:var(--shadow-focus)}.bucket-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:var(--spacing-4)}.bucket-card{padding:var(--spacing-5);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);text-align:left;cursor:pointer;transition:box-shadow var(--transition-fast),transform var(--transition-fast);display:flex;flex-direction:column;gap:var(--spacing-2)}.bucket-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.bucket-card-icon{color:var(--color-primary);display:flex}.bucket-card-name{font-weight:var(--fw-medium);font-size:var(--fs-base)}.bucket-card-sub{font-size:var(--fs-sm);color:var(--color-text-muted)}.share-header{display:flex;align-items:center;gap:var(--spacing-2);margin-bottom:var(--spacing-1)}.share-icon{color:var(--color-primary)}.share-title{font-size:var(--fs-md);font-weight:var(--fw-bold)}.share-desc{color:var(--color-text-muted);font-size:var(--fs-sm);margin-bottom:var(--spacing-4)}.share-label{display:block;font-size:var(--fs-sm);font-weight:var(--fw-medium);margin-bottom:var(--spacing-2)}.share-segments{display:flex;border-radius:var(--radius-sm);border:1px solid var(--color-border);overflow:hidden;margin-bottom:var(--spacing-4)}.share-seg-btn{flex:1;padding:var(--spacing-2);border:none;border-right:1px solid var(--color-border);font-size:var(--fs-sm);font-weight:var(--fw-medium);cursor:pointer;transition:background var(--transition-fast);background:transparent;color:var(--color-text)}.share-seg-btn:last-child{border-right:none}.share-seg-btn--active{background:var(--color-primary);color:var(--color-text-inverse)}.share-url-row{display:flex;gap:var(--spacing-2)}.share-url-input{flex:1;padding:var(--spacing-2) var(--spacing-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--fs-sm);font-family:var(--font-mono);background:var(--color-bg-secondary);color:var(--color-text);outline:none}.share-url-meta{color:var(--color-text-muted);font-size:var(--fs-xs)}.share-error{color:var(--color-error);font-size:var(--fs-sm);margin-top:var(--spacing-2)}.share-footer{display:flex;justify-content:flex-end;margin-top:var(--spacing-4)}.share-url-group{display:flex;flex-direction:column;gap:var(--spacing-2)}.create-folder-row{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-3);background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);animation:fade-in var(--transition-fast)}.create-folder-icon{color:#ec7211;display:flex}.create-folder-input{flex:1;padding:var(--spacing-1) var(--spacing-2);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--fs-base);color:var(--color-text);background:var(--color-bg);outline:none}.create-folder-input:focus{border-color:var(--color-primary);box-shadow:var(--shadow-focus)}.create-folder-input--error{border-color:var(--color-error)}.create-folder-error{color:var(--color-error);font-size:var(--fs-xs);white-space:nowrap}.delete-dialog{max-width:420px}.delete-header{display:flex;align-items:center;gap:var(--spacing-2);margin-bottom:var(--spacing-3)}.delete-icon{color:var(--color-error);display:flex}.delete-title{font-size:var(--fs-md);font-weight:var(--fw-bold)}.delete-desc{color:var(--color-text-muted);font-size:var(--fs-base);margin-bottom:var(--spacing-4)}.delete-actions{display:flex;justify-content:flex-end;gap:var(--spacing-2)}.upload-panel{position:fixed;bottom:0;right:var(--spacing-4);width:520px;background:var(--color-bg);border:1px solid var(--color-border);border-bottom:none;border-radius:var(--radius-md) var(--radius-md) 0 0;box-shadow:var(--shadow-lg);z-index:1000;display:flex;flex-direction:column;animation:slide-up var(--transition-base)}.upload-panel--expanded{max-height:340px}.upload-panel-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-2) var(--spacing-3);border-bottom:1px solid var(--color-border);cursor:pointer;flex-shrink:0;background:var(--color-bg-secondary);border-radius:var(--radius-md) var(--radius-md) 0 0}.upload-panel-title{font-weight:var(--fw-medium);font-size:var(--fs-base);display:flex;align-items:center;gap:var(--spacing-2)}.upload-panel-toggle{display:flex;color:var(--color-text-muted)}.upload-panel-actions{display:flex;gap:var(--spacing-2);padding:var(--spacing-1) var(--spacing-3);border-bottom:1px solid var(--color-border);flex-shrink:0}.upload-panel-list{overflow-y:auto;flex:1}.upload-panel-footer{padding:var(--spacing-1) var(--spacing-3);font-size:var(--fs-xs);color:var(--color-text-muted);border-top:1px solid var(--color-border);flex-shrink:0}.upload-file-row{display:grid;grid-template-columns:1fr 70px 100px 70px 50px 70px;align-items:center;padding:var(--spacing-1) var(--spacing-3);font-size:var(--fs-sm);border-bottom:1px solid var(--color-border);gap:var(--spacing-2)}.upload-file-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:flex;align-items:center;gap:var(--spacing-1)}.upload-file-size{color:var(--color-text-muted);font-family:var(--font-mono);font-size:var(--fs-xs)}.upload-progress-track{height:6px;background:var(--color-bg-tertiary);border-radius:var(--radius-full)}.upload-progress-bar{height:100%;border-radius:var(--radius-full);transition:width var(--transition-slow)}.upload-progress-bar--ok{background:var(--color-primary)}.upload-progress-bar--fail{background:var(--color-error)}.upload-file-speed,.upload-file-eta{color:var(--color-text-muted);font-size:var(--fs-xs)}.upload-file-actions{display:flex;gap:2px}.dropzone{position:relative;height:100%}.dropzone-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:50;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-3);background:rgba(255,153,0,.06);border:2px dashed var(--color-primary);border-radius:var(--radius-md);pointer-events:none;animation:fade-in var(--transition-fast)}.dropzone-overlay-icon{color:var(--color-primary)}.dropzone-overlay-text{font-size:var(--fs-md);font-weight:var(--fw-medium);color:var(--color-primary)}.filepicker{position:relative;display:inline-block}.filepicker-hidden{display:none}.bucket-sel{position:relative}.bucket-sel-btn{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-1) var(--spacing-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);min-width:180px;text-align:left;font-size:var(--fs-base);color:var(--color-text);cursor:pointer;transition:border-color var(--transition-fast)}.bucket-sel-btn:hover{border-color:var(--color-border-strong)}.bucket-sel-icon{color:var(--color-primary);flex-shrink:0}.bucket-sel-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bucket-sel-chevron{color:var(--color-text-muted);flex-shrink:0}.bucket-sel-list{position:absolute;top:100%;left:0;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);list-style:none;margin:var(--spacing-1) 0 0;padding:var(--spacing-1);min-width:240px;z-index:10;box-shadow:var(--shadow-md);animation:fade-in var(--transition-fast)}.bucket-sel-option{display:flex;align-items:center;gap:var(--spacing-2);width:100%;padding:var(--spacing-2);border:none;border-radius:var(--radius-sm);text-align:left;font-size:var(--fs-base);color:var(--color-text);cursor:pointer;transition:background var(--transition-fast);background:transparent}.bucket-sel-option:hover{background:var(--color-bg-secondary)}.bucket-sel-option--active{background:var(--color-selection)}.bucket-sel-option-icon{color:var(--color-text-muted)}.bucket-sel-add{display:flex;align-items:center;gap:var(--spacing-2);width:100%;padding:var(--spacing-2);border:none;background:transparent;color:var(--color-primary);text-align:left;border-top:1px solid var(--color-border);margin-top:var(--spacing-1);padding-top:var(--spacing-2);font-size:var(--fs-base);cursor:pointer}.bucket-sel-add:hover{background:var(--color-bg-secondary)}.toast-container{position:fixed;top:var(--spacing-4);right:var(--spacing-4);display:flex;flex-direction:column;gap:var(--spacing-2);z-index:9999}.toast{background:var(--color-bg);color:var(--color-text);padding:var(--spacing-3) var(--spacing-4);border-radius:var(--radius-md);display:flex;align-items:center;gap:var(--spacing-3);font-size:var(--fs-base);box-shadow:var(--shadow-lg);min-width:300px;max-width:420px;border:1px solid var(--color-border);animation:toast-in var(--transition-base)}.toast-icon{display:flex;flex-shrink:0}.toast-msg{flex:1}.toast-action{background:transparent;border:1px solid var(--color-border);color:var(--color-text);padding:2px 10px;border-radius:var(--radius-sm);font-size:var(--fs-sm);cursor:pointer;white-space:nowrap}.toast-action:hover{background:var(--color-bg-tertiary)}.toast--success{border-left:3px solid var(--color-success)}.toast--error{border-left:3px solid var(--color-error)}.toast--info{border-left:3px solid var(--color-primary)}.ctx-menu{position:fixed;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:var(--spacing-1) 0;min-width:180px;z-index:9500;animation:scale-in .1s ease}.tree{padding:var(--spacing-2) 0}.tree-node{display:flex;align-items:center;padding:var(--spacing-1) var(--spacing-2);gap:var(--spacing-1);cursor:pointer;font-size:var(--fs-base);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:background var(--transition-fast);border-left:3px solid transparent;color:var(--color-sidebar-text)}.tree-node:hover{background:rgba(255,255,255,.05)}.tree-node--active{background:rgba(255,153,0,.15);border-left-color:var(--color-sidebar-accent);color:var(--color-sidebar-text-active)}.tree-toggle{border:none;background:transparent;padding:0;width:16px;flex-shrink:0;display:flex;align-items:center;color:var(--color-sidebar-text);cursor:pointer}.tree-label{overflow:hidden;text-overflow:ellipsis}.tree-loading,.tree-empty{padding:var(--spacing-1) var(--spacing-2);color:var(--color-sidebar-text);font-size:var(--fs-sm);opacity:.6}.offline-banner{position:fixed;top:0;left:0;right:0;z-index:10000;background:var(--color-warning);color:var(--color-text-inverse);padding:var(--spacing-2) var(--spacing-4);display:flex;align-items:center;gap:var(--spacing-2);font-size:var(--fs-base);animation:slide-up var(--transition-fast)}.offline-banner-msg{flex:1}.offline-banner-dismiss{background:transparent;border:1px solid rgba(255,255,255,.5);border-radius:var(--radius-sm);padding:2px 8px;color:var(--color-text-inverse);font-size:var(--fs-sm);cursor:pointer;display:flex;align-items:center;gap:var(--spacing-1)}.offline-banner-dismiss:hover{background:rgba(255,255,255,.15)}.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;z-index:10001;padding:8px 16px;background:var(--color-primary);color:#fff;text-decoration:none;font-size:var(--fs-sm);border-radius:0 0 var(--radius-sm) 0}.skip-link:focus{position:fixed;left:0;top:0;width:auto;height:auto}.error-fallback{padding:32px;text-align:center}.error-fallback-btn{margin-top:12px;padding:8px 16px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:transparent;cursor:pointer}.error-fallback-btn:hover{background:var(--color-bg-tertiary)}.auth-loading{display:grid;place-items:center;height:100vh}.loading-fallback{display:flex;justify-content:center;align-items:center;height:100%;padding:32px}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}