.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1d4ed8,#1e3a8a 55%,#0f2557);padding:20px}.auth-card{background:var(--surface);border-radius:var(--radius-xl);padding:36px;width:100%;max-width:400px;box-shadow:var(--shadow-xl);animation:scaleIn .25s ease}.auth-logo{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:24px}.auth-logo-icon{width:42px;height:42px;background:var(--primary);border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.auth-logo-text{font-size:1.5rem;font-weight:700;color:var(--text);letter-spacing:-.4px}.auth-title{font-size:1.357rem;font-weight:700;color:var(--text);margin-bottom:4px;text-align:center}.auth-subtitle{font-size:.929rem;color:var(--text2);margin-bottom:24px;text-align:center}.auth-form .input{padding:10px 12px}.auth-btn{width:100%;padding:10px;font-size:.93rem;font-weight:600;margin-top:4px}.auth-btn .spinner{border-color:#ffffff4d;border-top-color:#fff}.auth-footer{text-align:center;margin-top:18px;font-size:.87rem;color:var(--text2)}.auth-footer a{color:var(--primary);font-weight:500}.auth-footer a:hover{text-decoration:underline}.auth-error{background:var(--danger-light);border:1px solid rgba(239,68,68,.15);border-radius:var(--radius);padding:9px 12px;font-size:.87rem;color:var(--danger);margin-bottom:14px;display:flex;align-items:center;gap:8px}.password-wrapper{position:relative}.password-toggle{position:absolute;right:10px;top:50%;transform:translateY(-50%);color:var(--text3);padding:3px;display:flex;align-items:center}.password-toggle:hover{color:var(--text2)}.app-layout{display:flex;height:100vh;overflow:hidden;background:var(--bg)}.header{position:fixed;top:0;left:0;right:0;height:var(--header-h);background:var(--header-bg);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 14px;gap:10px;z-index:100;box-shadow:var(--shadow-sm)}.header-logo{display:flex;align-items:center;gap:8px;flex-shrink:0;width:calc(var(--sidebar-w) - 14px);overflow:hidden}.header-logo-icon{width:30px;height:30px;background:var(--primary);border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.header-logo-text{font-size:1.07rem;font-weight:700;color:var(--text);letter-spacing:-.3px;white-space:nowrap}.header-search{flex:1;max-width:460px;position:relative}.header-search-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--text3);pointer-events:none;display:flex}.header-search .input{padding-left:32px;padding-right:32px;height:36px;background:var(--surface2);border-color:transparent;font-size:.87rem}.header-search .input:focus{background:var(--surface);border-color:var(--primary)}.header-actions{display:flex;align-items:center;gap:6px;margin-left:auto}.user-menu{position:relative}.user-btn{display:flex;align-items:center;gap:7px;padding:4px 8px;border-radius:var(--radius);transition:background var(--transition)}.user-btn:hover{background:var(--surface2)}.user-avatar{width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.857rem;font-weight:700;flex-shrink:0}.user-name{font-size:.87rem;font-weight:500}.user-dropdown{position:absolute;top:calc(100% + 6px);right:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:5px;min-width:200px;z-index:200;animation:slideDown .15s ease}.user-dropdown-header{padding:10px 12px 8px;border-bottom:1px solid var(--border);margin-bottom:4px}.user-dropdown-name{font-weight:600;font-size:.93rem;display:flex;align-items:center;gap:6px;flex-wrap:wrap}.dropdown-item{display:flex;align-items:center;gap:9px;padding:8px 12px;border-radius:6px;font-size:.87rem;cursor:pointer;transition:background var(--transition);width:100%;color:var(--text)}.dropdown-item:hover{background:var(--surface2)}.dropdown-item.danger{color:var(--danger)}.dropdown-item.danger:hover{background:var(--danger-light)}.hamburger{display:none!important;padding:6px;border-radius:var(--radius);flex-shrink:0;align-items:center;justify-content:center;transition:background var(--transition)}.hamburger:hover{background:var(--surface2)}@media (max-width: 768px){.hamburger{display:flex!important}}.sidebar{position:fixed;top:var(--header-h);left:0;bottom:0;width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:90;transition:transform var(--transition);overflow-y:auto;overflow-x:hidden}.sidebar-section{padding:10px 8px}.sidebar-section+.sidebar-section{border-top:1px solid var(--border)}.sidebar-label{font-size:.67rem;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--text3);padding:0 8px;margin-bottom:3px}.sidebar-item{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:var(--radius);font-size:.87rem;color:var(--text2);cursor:pointer;transition:all var(--transition);width:100%;text-align:left;font-weight:400}.sidebar-item:hover{background:var(--surface2);color:var(--text)}.sidebar-item.active{background:var(--primary-light);color:var(--primary);font-weight:500}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:85}.storage-section{padding:12px 14px 16px;margin-top:auto;border-top:1px solid var(--border)}.storage-title{font-size:.73rem;font-weight:700;color:var(--text3);text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px;display:flex;align-items:center;gap:6px}.storage-bar{height:5px;background:var(--surface2);border-radius:100px;overflow:hidden;margin-bottom:6px}.storage-bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),#60a5fa);border-radius:100px;transition:width .6s ease}.storage-bar-fill.warn{background:linear-gradient(90deg,var(--warning),#fbbf24)}.storage-bar-fill.danger{background:linear-gradient(90deg,var(--danger),#f87171)}.storage-info{display:flex;flex-direction:column;align-items:flex-start;gap:2px}.storage-used{font-size:.8rem;font-weight:600;color:var(--text2)}.storage-total{font-size:.75rem;color:var(--text3)}.storage-stats{display:flex;gap:12px;margin-top:8px}.storage-stat{font-size:.73rem;color:var(--text3);display:flex;align-items:center;gap:4px}.main-content{margin-left:var(--sidebar-w);margin-top:var(--header-h);flex:1;overflow-y:auto;overflow-x:hidden;height:calc(100vh - var(--header-h));padding:clamp(16px,2vw,34px) clamp(16px,2.6vw,44px)}.toolbar{display:flex;align-items:center;gap:10px;margin-bottom:18px;flex-wrap:nowrap}.breadcrumb{display:flex;align-items:center;gap:2px;flex:1;min-width:0;overflow:hidden}.breadcrumb-item{display:inline-flex;align-items:center;font-size:.93rem;font-weight:600;color:var(--text2);cursor:pointer;padding:3px 6px;border-radius:6px;transition:all var(--transition);white-space:nowrap;max-width:160px;overflow:hidden;text-overflow:ellipsis}.breadcrumb-item:hover{background:var(--surface2);color:var(--text)}.breadcrumb-item.current{color:var(--text);cursor:default}.breadcrumb-item.current:hover{background:transparent}.breadcrumb-sep{color:var(--text3);flex-shrink:0;margin:0 1px}.toolbar-actions{display:flex;align-items:center;gap:6px;flex-shrink:0}.btn-label{display:inline}.create-menu-wrap{position:relative;flex-shrink:0}.create-menu{position:absolute;top:calc(100% + 6px);left:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:5px;min-width:190px;z-index:250;animation:slideDown .15s ease}.create-menu-item-sub{font-size:.73rem;color:var(--text3);margin-top:1px}.view-toggle{display:flex;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;flex-shrink:0}.view-toggle button{padding:5px 8px;border-radius:0;display:flex;align-items:center;transition:all var(--transition);color:var(--text3)}.view-toggle button.active{background:var(--primary-light);color:var(--primary)}.view-toggle button:hover:not(.active){background:var(--surface2);color:var(--text2)}.section-header{font-size:.73rem;font-weight:700;color:var(--text3);text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px;display:flex;align-items:center;gap:7px}.section-count{background:var(--surface2);border-radius:100px;padding:1px 7px;font-size:.714rem;font-weight:700;color:var(--text3)}.folder-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(155px,1fr));gap:8px;margin-bottom:24px;align-items:start}.folder-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:12px;cursor:pointer;transition:border-color var(--transition),box-shadow var(--transition);position:relative;display:flex;flex-direction:column;gap:7px;-webkit-user-select:none;user-select:none}.folder-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}.folder-icon{width:38px;height:38px;background:#fef3c7;border-radius:9px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.folder-name{font-size:.87rem;font-weight:500;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.3}.folder-meta{font-size:.73rem;color:var(--text3)}.folder-card-actions{position:absolute;top:7px;right:7px;display:none}.folder-card:hover 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transparent}.file-row:hover{background:var(--surface);border-color:var(--border)}.file-row-icon{width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.file-row-info{flex:1;min-width:0}.file-row-name{font-size:.87rem;font-weight:500;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-row-meta{font-size:.73rem;color:var(--text3);margin-top:1px}.file-row-size{font-size:.8rem;color:var(--text2);flex-shrink:0;width:72px;text-align:right}.file-row-date{font-size:.8rem;color:var(--text3);flex-shrink:0;width:130px;text-align:right}.file-row-actions{display:none;gap:2px;flex-shrink:0}.file-row:hover .file-row-actions{display:flex}.upload-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;z-index:300;display:flex;align-items:center;justify-content:center;padding:20px;animation:fadeIn .2s ease}.upload-panel{background:var(--surface);border-radius:var(--radius-xl);padding:24px;width:100%;max-width:500px;max-height:80vh;display:flex;flex-direction:column;gap:14px;animation:scaleIn .2s ease;box-shadow:var(--shadow-xl)}.upload-panel-header{display:flex;align-items:center;justify-content:space-between}.upload-panel-title{font-size:1rem;font-weight:600}.dropzone{border:2px dashed var(--border2);border-radius:var(--radius-lg);padding:32px 20px;text-align:center;cursor:pointer;transition:all var(--transition);background:var(--surface2)}.dropzone:hover,.dropzone.dragging{border-color:var(--primary);background:var(--primary-light)}.dropzone-icon{margin-bottom:10px;color:var(--text3)}.dropzone.dragging 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36px)}.toast{display:flex;align-items:flex-start;gap:10px;padding:11px 14px;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);font-size:.87rem;pointer-events:all;animation:slideInRight .22s ease;border-left:3px solid;background:var(--surface)}.toast.success{border-left-color:var(--success)}.toast.error{border-left-color:var(--danger)}.toast.warning{border-left-color:var(--warning)}.toast.info{border-left-color:var(--info)}.toast-icon{flex-shrink:0;margin-top:1px}.toast-icon.success{color:var(--success)}.toast-icon.error{color:var(--danger)}.toast-icon.warning{color:var(--warning)}.toast-icon.info{color:var(--info)}.toast-content{flex:1;min-width:0}.toast-message{color:var(--text);line-height:1.45;word-break:break-word}.toast-close{flex-shrink:0;color:var(--text3);padding:1px;transition:color var(--transition);display:flex}.toast-close:hover{color:var(--text)}.pagination{display:flex;align-items:center;justify-content:center;gap:3px;margin-top:24px;flex-wrap:wrap}.page-btn{min-width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);font-size:.87rem;color:var(--text2);transition:all var(--transition);padding:0 7px;border:1px solid transparent}.page-btn:hover:not(:disabled){background:var(--surface);border-color:var(--border);color:var(--text)}.page-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.page-btn:disabled{opacity:.35;cursor:not-allowed}.page-ellipsis{color:var(--text3);padding:0 3px;font-size:.87rem}.pagination-info{font-size:.8rem;color:var(--text3);text-align:center;margin-top:6px}.folder-picker{max-height:220px;overflow-y:auto;border:1px solid var(--border);border-radius:var(--radius)}.folder-pick-item{display:flex;align-items:center;gap:9px;padding:8px 12px;cursor:pointer;transition:background var(--transition);font-size:.87rem}.folder-pick-item:hover{background:var(--surface2)}.folder-pick-item.selected{background:var(--primary-light);color:var(--primary);font-weight:500}.folder-pick-item+.folder-pick-item{border-top:1px solid var(--border)}.search-banner{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--primary-light);border-radius:var(--radius);font-size:.87rem;color:var(--primary);margin-bottom:14px;font-weight:500}@media (max-width: 768px){.header-logo{width:auto;min-width:30px}.header-logo-text{display:none}.sidebar{transform:translate(-100%);width:256px;box-shadow:var(--shadow-xl)}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:block}.main-content{margin-left:0;padding:14px 16px}.folder-grid,.file-grid{grid-template-columns:repeat(2,1fr);gap:7px}.file-row-size,.file-row-date,.user-name,.btn-label{display:none}.toolbar{gap:6px}.breadcrumb-item{max-width:100px}.toast-container{bottom:12px;right:12px;left:12px;max-width:100%;width:auto}.modal{max-width:100%}.preview-docx{padding:20px 16px}}@media (min-width: 1280px){.file-grid,.folder-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}.main-content{padding:24px 28px}}.header{-webkit-backdrop-filter:saturate(1.1);backdrop-filter:saturate(1.1)}.header-logo-icon{background:var(--brand-grad);box-shadow:0 2px 8px #6366f159}.user-avatar{background:var(--brand-grad);box-shadow:0 1px 4px 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