:root{--bg: #f5f6fa;--bg-elevated: #ffffff;--bg-hover: #eef0f6;--bg-selected: #e8edff;--border: #e3e5ec;--text: #1b1e27;--text-muted: #6b7180;--text-faint: #9298a8;--accent: #4f6bff;--accent-hover: #3d57e6;--accent-soft: #eef1ff;--danger: #e5484d;--danger-soft: #fde9e9;--success: #1fa971;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--shadow-sm: 0 1px 2px rgba(20, 22, 30, .06);--shadow-md: 0 8px 24px rgba(20, 22, 30, .1);--shadow-lg: 0 16px 48px rgba(20, 22, 30, .2);--sidebar-w: 248px;color-scheme:light}@media (prefers-color-scheme: dark){:root{--bg: #0f1115;--bg-elevated: #171922;--bg-hover: #1f222c;--bg-selected: #24284a;--border: #2a2d38;--text: #eceef3;--text-muted: #9298a8;--text-faint: #6b7180;--accent: #6c85ff;--accent-hover: #8298ff;--accent-soft: #1c2140;--danger: #ff6b6f;--danger-soft: #3a1f22;--success: #35c98e;color-scheme:dark}}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Segoe UI,-apple-system,BlinkMacSystemFont,Inter,Roboto,Helvetica,Arial,sans-serif;font-size:14px;-webkit-font-smoothing:antialiased}button{font-family:inherit}a{color:inherit;text-decoration:none}h1,h2,h3{margin:0}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:8px}::-webkit-scrollbar-track{background:transparent}.app-shell{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-w);flex-shrink:0;background:var(--bg-elevated);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:20px 14px}.sidebar__logo{display:flex;align-items:center;gap:10px;padding:6px 10px 22px;font-weight:700;font-size:17px;color:var(--accent)}.sidebar__nav{display:flex;flex-direction:column;gap:2px}.sidebar__link{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--text-muted);font-weight:500;transition:background .15s,color .15s}.sidebar__link:hover{background:var(--bg-hover);color:var(--text)}.sidebar__link--active{background:var(--accent-soft);color:var(--accent)}.sidebar__footer{margin-top:auto;display:flex;flex-direction:column;gap:14px}.sidebar__user{display:flex;align-items:center;gap:10px;padding:14px 6px 8px;border-top:1px solid var(--border)}.sidebar__avatar{width:32px;height:32px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;flex-shrink:0}.sidebar__user-info{flex:1;min-width:0}.sidebar__username{font-weight:600;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar__usermail{font-size:11px;color:var(--text-faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.app-main{flex:1;display:flex;flex-direction:column;min-width:0}.topbar{height:64px;flex-shrink:0;display:flex;align-items:center;padding:0 28px;border-bottom:1px solid var(--border);background:var(--bg-elevated)}.topbar__search{display:flex;align-items:center;gap:10px;background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:9px 16px;width:100%;max-width:480px;color:var(--text-faint)}.topbar__search input{border:none;background:transparent;outline:none;flex:1;color:var(--text);font-size:14px}.app-content{flex:1;overflow-y:auto;padding:24px 28px 80px;position:relative}.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--radius-sm);border:1px solid transparent;font-weight:600;font-size:13.5px;cursor:pointer;transition:background .15s,border-color .15s,opacity .15s;white-space:nowrap}.btn:disabled{opacity:.55;cursor:default}.btn--primary{background:var(--accent);color:#fff}.btn--primary:hover:not(:disabled){background:var(--accent-hover)}.btn--ghost{background:transparent;color:var(--text);border-color:var(--border)}.btn--ghost:hover:not(:disabled){background:var(--bg-hover)}.btn--danger-ghost{background:transparent;color:var(--danger);border-color:var(--danger-soft)}.btn--danger-ghost:hover{background:var(--danger-soft)}.btn--block{width:100%;justify-content:center;margin-top:6px}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;border:none;background:transparent;color:var(--text-muted);cursor:pointer;transition:background .15s,color .15s}.icon-button:hover{background:var(--bg-hover);color:var(--text)}.icon-button--small{width:26px;height:26px}.icon-button--danger:hover{background:var(--danger-soft);color:var(--danger)}.icon-toggle{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border:1px solid var(--border);background:var(--bg-elevated);color:var(--text-muted);cursor:pointer}.icon-toggle:first-child{border-radius:var(--radius-sm) 0 0 var(--radius-sm)}.icon-toggle:last-child{border-radius:0 var(--radius-sm) var(--radius-sm) 0;border-left:none}.icon-toggle--active{background:var(--accent-soft);color:var(--accent)}.text-input{width:100%;padding:10px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg);color:var(--text);font-size:14px;margin-bottom:14px;outline:none;transition:border-color .15s}.text-input:focus{border-color:var(--accent)}.field-label{display:block;font-size:12px;font-weight:600;color:var(--text-muted);margin-bottom:6px}.checkbox-row{display:flex;align-items:center;gap:8px;font-size:13.5px;margin-bottom:14px}.link-button{background:none;border:none;color:var(--accent);cursor:pointer;font-weight:600;padding:0;font-size:inherit}.breadcrumbs{display:flex;align-items:center;gap:4px;margin-bottom:18px;flex-wrap:wrap}.breadcrumbs__segment{display:flex;align-items:center;gap:4px;color:var(--text-faint)}.breadcrumbs__item{background:none;border:none;cursor:pointer;color:var(--text-muted);font-size:14px;font-weight:600;padding:4px 8px;border-radius:6px;display:inline-flex;align-items:center;gap:6px}.breadcrumbs__item:hover{background:var(--bg-hover);color:var(--text)}.breadcrumbs__segment:last-child .breadcrumbs__item{color:var(--text)}.search-heading{font-size:18px;font-weight:700;margin-bottom:18px}.drive-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:12px;flex-wrap:wrap}.drive-toolbar__actions{display:flex;gap:10px;flex-wrap:wrap}.drive-toolbar__view{display:flex}.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}.file-card{position:relative;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:14px;cursor:pointer;transition:box-shadow .15s,border-color .15s,transform .1s;-webkit-user-select:none;user-select:none}.file-card:hover{box-shadow:var(--shadow-sm);border-color:var(--text-faint)}.file-card--selected{border-color:var(--accent);background:var(--bg-selected)}.file-card__favorite{position:absolute;top:10px;right:10px;background:none;border:none;cursor:pointer;color:var(--text-faint);opacity:0;transition:opacity .15s,color .15s}.file-card:hover .file-card__favorite,.file-card__favorite:has(svg[fill=currentColor]){opacity:1}.file-card__favorite:hover{color:#f5a623}.file-card__thumb{height:92px;display:flex;align-items:center;justify-content:center;background:var(--bg);border-radius:var(--radius-sm);margin-bottom:10px;overflow:hidden}.file-card__thumb img{width:100%;height:100%;object-fit:cover}.file-card__name{font-weight:600;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-card__meta{font-size:11.5px;color:var(--text-faint);margin-top:3px}.file-table{width:100%;border-collapse:collapse}.file-table thead th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.03em;color:var(--text-faint);font-weight:600;padding:8px 12px;border-bottom:1px solid var(--border)}.file-table tbody tr{cursor:pointer;transition:background .1s}.file-table tbody tr:hover{background:var(--bg-hover)}.file-table__row--selected{background:var(--bg-selected)!important}.file-table td{padding:10px 12px;border-bottom:1px solid var(--border);font-size:13.5px}.file-table__icon{width:30px}.file-table__name{font-weight:600;display:flex;align-items:center;gap:6px}.file-table__meta{color:var(--text-muted);white-space:nowrap}.file-table__row-actions{display:flex;gap:4px;justify-content:flex-end}.icon-folder{color:#f5b942}.icon-image{color:#4f9dff}.icon-video{color:#b06bff}.icon-audio{color:#ff7ab6}.icon-pdf{color:#ff5d5d}.icon-archive{color:#b98b5e}.icon-sheet{color:#29a879}.icon-code{color:#4fbf9f}.icon-generic{color:var(--text-faint)}.favorite-dot{color:#f5a623;flex-shrink:0}.empty-state,.empty-hint{text-align:center;color:var(--text-faint);padding:60px 20px}.empty-state__hint{font-size:12.5px;margin-top:6px}.empty-hint{padding:24px;font-size:13px}.drive-page{position:relative;min-height:calc(100vh - 200px)}.drive-page--drag-over{outline:2px dashed var(--accent);outline-offset:-4px;border-radius:var(--radius-md)}.drop-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#4f6bff14;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--accent);font-weight:700;font-size:18px;pointer-events:none;z-index:40}.context-menu{position:fixed;min-width:210px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:6px;z-index:100}.context-menu__item{width:100%;display:flex;align-items:center;gap:10px;padding:9px 10px;background:none;border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:13.5px;color:var(--text);text-align:left}.context-menu__item:hover{background:var(--bg-hover)}.context-menu__item--danger{color:var(--danger)}.context-menu__item--danger:hover{background:var(--danger-soft)}.context-menu__divider{height:1px;background:var(--border);margin:6px 4px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0c1273;display:flex;align-items:center;justify-content:center;z-index:90;padding:20px}.modal{width:100%;background:var(--bg-elevated);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden}.modal__header{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--border)}.modal__header h3{font-size:16px}.modal__body{padding:20px}.modal__actions{display:flex;justify-content:flex-end;gap:10px;margin-top:6px}.folder-picker__crumbs{display:flex;gap:4px;flex-wrap:wrap;align-items:center;margin-bottom:12px;font-size:13px;color:var(--text-faint)}.folder-picker__crumbs span{display:flex;align-items:center;gap:4px}.folder-picker__list{max-height:260px;overflow-y:auto;border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:16px}.folder-picker__item{width:100%;display:flex;align-items:center;gap:10px;padding:10px 12px;background:none;border:none;border-bottom:1px solid var(--border);cursor:pointer;font-size:13.5px;color:var(--text);text-align:left}.folder-picker__item:last-child{border-bottom:none}.folder-picker__item:hover{background:var(--bg-hover)}.folder-picker__chevron{margin-left:auto;color:var(--text-faint)}.share-result{display:flex;gap:10px;margin-bottom:6px}.share-result .text-input{margin-bottom:0}.toast-stack{position:fixed;bottom:22px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:8px;z-index:200;width:100%;max-width:380px;padding:0 16px}.toast{display:flex;align-items:center;gap:10px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;box-shadow:var(--shadow-md);font-size:13.5px;font-weight:500;animation:toast-in .2s ease-out}.toast--success{border-color:var(--success);color:var(--success)}.toast--error{border-color:var(--danger);color:var(--danger)}.toast--info{color:var(--text)}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.upload-tray{position:fixed;bottom:20px;right:24px;width:340px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);overflow:hidden;z-index:60}.upload-tray__header{display:flex;align-items:center;gap:10px;padding:12px 14px;font-size:13px;font-weight:600;cursor:pointer;background:var(--bg)}.upload-tray__header-actions{margin-left:auto;display:flex;gap:2px}.upload-tray__list{max-height:260px;overflow-y:auto}.upload-tray__item{display:flex;align-items:center;gap:10px;padding:10px 14px;border-top:1px solid var(--border)}.upload-tray__item-icon{width:18px;flex-shrink:0;display:flex}.upload-tray__item-info{flex:1;min-width:0}.upload-tray__item-name{font-size:12.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.upload-tray__item-error{font-size:11px;color:var(--danger)}.upload-tray__item-size{font-size:11px;color:var(--text-faint);flex-shrink:0}.upload-tray__progress{height:4px;background:var(--border);border-radius:4px;margin-top:5px;overflow:hidden}.upload-tray__progress-fill{height:100%;background:var(--accent);transition:width .2s}.text-success{color:var(--success)}.text-danger{color:var(--danger)}.spinner{width:30px;height:30px;border-radius:50%;border:3px solid var(--border);border-top-color:var(--accent);animation:spin .7s linear infinite}.spinner--small{width:14px;height:14px;border-width:2px}@keyframes spin{to{transform:rotate(360deg)}}.full-screen-center{display:flex;align-items:center;justify-content:center;height:60vh}.full-screen-center--column{flex-direction:column;gap:10px}.storage-meter{padding:0 6px}.storage-meter__bar{height:6px;background:var(--border);border-radius:4px;overflow:hidden}.storage-meter__bar--large{height:10px}.storage-meter__fill{height:100%;background:linear-gradient(90deg,var(--accent),#8298ff);border-radius:4px;transition:width .3s}.storage-meter__label{font-size:11px;color:var(--text-faint);margin-top:6px}.auth-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 20% 20%,var(--accent-soft),transparent 45%),radial-gradient(circle at 80% 80%,var(--accent-soft),transparent 45%),var(--bg);padding:20px}.auth-card{width:100%;max-width:380px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:32px}.auth-card__brand{display:flex;align-items:center;gap:10px;color:var(--accent);margin-bottom:6px}.auth-card__brand h1{font-size:20px}.auth-card__subtitle{color:var(--text-muted);font-size:13px;margin:0 0 24px}.auth-card__error{color:var(--danger);font-size:13px;margin-bottom:14px}.public-shell{min-height:100vh;background:var(--bg)}.public-header{display:flex;align-items:center;gap:10px;padding:18px 28px;border-bottom:1px solid var(--border);background:var(--bg-elevated);font-weight:700;color:var(--accent)}.public-content{max-width:1100px;margin:0 auto;padding:28px}.public-file-card{display:flex;flex-direction:column;align-items:center;gap:14px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);padding:48px;max-width:420px;margin:40px auto;text-align:center}.public-file-card__name{font-weight:700;font-size:15px;word-break:break-word}.simple-page__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.simple-page__header h2{font-size:20px}.share-list{display:flex;flex-direction:column;gap:10px}.share-list__item{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:14px 16px}.share-list__name{font-weight:600;font-size:13.5px}.share-list__meta{display:flex;gap:14px;font-size:11.5px;color:var(--text-faint);margin-top:4px}.share-list__meta span{display:inline-flex;align-items:center;gap:4px}.share-list__actions{display:flex;align-items:center;gap:6px}.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:24px}.stat-card{display:flex;align-items:center;gap:14px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px}.stat-card__icon{color:var(--accent);flex-shrink:0}.stat-card__value{font-size:19px;font-weight:700}.stat-card__label{font-size:11.5px;color:var(--text-faint);margin-top:2px}.dashboard-quota{margin-bottom:24px}.dashboard-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:18px}@media (max-width: 900px){.dashboard-grid{grid-template-columns:1fr}}.panel{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px}.panel h3{font-size:14px;margin-bottom:16px}.type-breakdown__row{display:flex;align-items:center;gap:10px;margin-bottom:12px}.type-breakdown__label{display:flex;align-items:center;gap:8px;width:110px;font-size:12.5px;color:var(--text-muted);flex-shrink:0}.type-breakdown__bar{flex:1;height:8px;background:var(--bg);border-radius:4px;overflow:hidden}.type-breakdown__fill{height:100%;background:var(--accent);border-radius:4px}.type-breakdown__count{width:28px;text-align:right;font-size:12.5px;color:var(--text-faint)}.recent-list__item{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}.recent-list__item:last-child{border-bottom:none}.recent-list__date{color:var(--text-faint);font-size:11.5px}.viewer-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#06070af0;z-index:150;display:flex;flex-direction:column}.viewer-topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;color:#fff}.viewer-title{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60vw}.viewer-actions{display:flex;gap:4px}.viewer-actions .icon-button{color:#fff}.viewer-actions .icon-button:hover{background:#ffffff1f}.viewer-stage{flex:1;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:20px}.viewer-image{max-width:100%;max-height:82vh;object-fit:contain;cursor:zoom-in;border-radius:4px}.viewer-image--zoomed{max-width:none;max-height:none;cursor:zoom-out}.viewer-media{max-width:90%;max-height:82vh;border-radius:8px}.viewer-pdf{width:90vw;height:84vh;border:none;border-radius:8px;background:#fff}.viewer-audio-card{background:var(--bg-elevated);border-radius:var(--radius-lg);padding:40px;text-align:center;min-width:320px}.viewer-audio-title{font-weight:600;margin-bottom:18px}.viewer-audio{width:100%}.viewer-unsupported{background:var(--bg-elevated);border-radius:var(--radius-lg);padding:40px;text-align:center;display:flex;flex-direction:column;gap:16px;align-items:center}.viewer-nav{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;border:none;background:#ffffff14;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:5}.viewer-nav:hover{background:#ffffff2e}.viewer-nav--prev{left:20px}.viewer-nav--next{right:20px}@media (max-width: 860px){.sidebar{position:fixed;z-index:80;height:100%;transform:translate(-100%);transition:transform .2s}.app-content{padding:18px 16px 90px}.topbar{padding:0 16px}.dashboard-grid{grid-template-columns:1fr}}