:root{--bg:#f5f6f8;--surface:#fff;--border:#dfe3e8;--text:#1b2430;--muted:#64707e;--accent:#2563eb;--accent-hover:#1d4ed8;--danger:#dc2626;--danger-hover:#b91c1c;--focus:#0ea5e9;--radius:8px;--shadow:0 1px 3px #1018281a}*{box-sizing:border-box}html,body,#root{height:100%}body{color:var(--text);background:var(--bg);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:15px;line-height:1.45}button{font:inherit;cursor:pointer}button:focus-visible,input:focus-visible,a:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app-loading{height:100vh;color:var(--muted);place-items:center;display:grid}.btn{border-radius:var(--radius);color:var(--text);background:0 0;border:1px solid #0000;padding:8px 12px;transition:background .12s,color .12s}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-ghost{border-color:var(--border);background:var(--surface)}.btn-ghost:hover:not(:disabled){background:var(--bg)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--danger-hover)}.btn-small{padding:4px 8px;font-size:13px}.login-shell{place-items:center;min-height:100vh;padding:24px;display:grid}.login-card{background:var(--surface);border:1px solid var(--border);width:100%;max-width:380px;box-shadow:var(--shadow);border-radius:12px;flex-direction:column;gap:10px;padding:28px;display:flex}.login-card h1{margin:0;font-size:22px}.login-sub{color:var(--muted);margin:0 0 6px}.login-card label{margin-top:8px;font-size:13px;font-weight:600}.login-card input{border:1px solid var(--border);border-radius:var(--radius);font:inherit;padding:10px}.login-card button{margin-top:12px}.alert{border-radius:var(--radius);margin:6px 0;padding:10px 12px;font-size:14px}.alert-error{color:#b91c1c;background:#fef2f2;border:1px solid #fecaca}.app-shell{flex-direction:column;min-height:100vh;display:flex}.topbar{background:var(--surface);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:16px;padding:10px 20px;display:flex}.topbar-brand{align-items:center;gap:10px;font-size:17px;font-weight:700;display:flex}.brand-mark{background:linear-gradient(135deg, var(--accent), #7c3aed);border-radius:6px;width:22px;height:22px}.topbar-actions{align-items:center;gap:10px;display:flex}.topbar-user{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;max-width:180px;font-size:14px;overflow:hidden}.storage-bar{align-items:center;gap:8px;min-width:180px;display:flex}.storage-meter{background:var(--border);border-radius:999px;flex:1;height:8px;overflow:hidden}.storage-fill{background:var(--accent);height:100%;display:block}.storage-caption{color:var(--muted);white-space:nowrap;font-size:12px}.layout{flex:1;align-items:stretch;display:flex}.sidenav{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;gap:6px;width:220px;padding:20px 12px;display:flex}.sidenav-heading{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 6px;font-size:12px}.nav-item{text-align:left;border-radius:var(--radius);color:var(--text);background:0 0;border:0;padding:9px 12px}.nav-item:hover{background:var(--bg)}.nav-item-accent{color:var(--accent);font-weight:600}.sidenav-current{color:var(--muted);border-top:1px solid var(--border);margin-top:auto;padding:12px;font-size:12px}.content{flex:1;min-width:0;padding:20px 24px}.content-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;display:flex}.toolbar-actions{align-items:center;gap:8px;display:flex}.breadcrumbs{flex-wrap:wrap;align-items:center;gap:4px;display:flex}.crumb{color:var(--accent);background:0 0;border:0;border-radius:6px;padding:4px 6px;font-size:14px}.crumb:hover{background:var(--border)}.crumb-sep{color:var(--muted);margin:0 2px}.crumb-current{color:var(--muted);padding:4px 6px}.table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:10px;overflow-x:auto}.item-table{border-collapse:collapse;width:100%;min-width:620px}.item-table th,.item-table td{text-align:left;border-bottom:1px solid var(--border);padding:12px 16px}.item-table thead th{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);background:#fafbfc;font-size:12px}.item-table tbody tr:last-child td{border-bottom:0}.item-table tbody tr:hover{background:#fafbfc}.col-size{width:110px;color:var(--muted)}.col-date{width:180px;color:var(--muted)}.cell-actions{justify-content:flex-end;gap:6px;width:180px;display:flex}.cell-name,.name-link,.name-static{align-items:center;gap:8px;display:flex}.name-link{color:var(--text);text-align:left;background:0 0;border:0;border-radius:4px;padding:0;font-weight:600}.name-link:hover{color:var(--accent)}.item-icon{border-radius:4px;flex-shrink:0;width:18px;height:18px}.item-icon-folder{background:#fde68a;border:1px solid #f59e0b}.item-icon-file{background:#dbeafe;border:1px solid #93c5fd}.mobile-only{display:none}.card-list{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.item-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;justify-content:space-between;align-items:center;gap:12px;padding:12px;display:flex}.card-main{min-width:0}.card-title{text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:8px;font-weight:600;display:flex;overflow:hidden}.card-meta{color:var(--muted);margin-top:4px;font-size:12px;display:block}.card-actions{gap:6px;display:flex}.empty-state,.loading-state{color:var(--muted);padding:24px 0}.upload-panel{background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-top:20px;padding:14px 16px}.upload-panel-title{margin:0 0 10px;font-size:15px}.upload-list{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.upload-row{border:1px solid var(--border);border-radius:8px;flex-wrap:wrap;align-items:center;gap:12px;padding:10px 12px;display:flex}.upload-info{flex-direction:column;flex:1;min-width:0;display:flex}.upload-name{text-overflow:ellipsis;white-space:nowrap;font-weight:600;overflow:hidden}.upload-meta{color:var(--muted);font-size:12px}.upload-row-error{background:#fff7f7;border-color:#fecaca}.upload-bar{background:var(--border);border-radius:999px;flex:0 0 160px;height:8px;overflow:hidden}.upload-fill{background:var(--accent);height:100%;transition:width .15s;display:block}.upload-actions{gap:6px;display:flex}.dialog-backdrop{z-index:40;background:#0f172a73;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.dialog{background:var(--surface);border-radius:12px;width:100%;max-width:420px;padding:22px;box-shadow:0 10px 30px #0003}.dialog h2{margin:0 0 8px;font-size:18px}.dialog p{color:var(--muted);margin:0 0 14px}.dialog label{margin:8px 0 4px;font-size:13px;font-weight:600;display:block}.dialog input{border:1px solid var(--border);border-radius:var(--radius);width:100%;font:inherit;padding:10px}.dialog-actions{justify-content:flex-end;gap:8px;margin-top:16px;display:flex}.toast{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);z-index:50;max-width:360px;padding:12px 16px;position:fixed;bottom:20px;right:20px}.toast-error{color:#b91c1c;background:#fff7f7;border-color:#fecaca}@media (width>=901px){.mobile-only{display:none}.desktop-only{display:block}}@media (width<=900px){.layout{flex-direction:column}.sidenav{border-right:0;border-bottom:1px solid var(--border);flex-flow:wrap;align-items:center;width:100%;padding:10px 12px}.sidenav-heading,.sidenav-current{display:none}.nav-item{padding:8px 12px}.desktop-only{display:none}.mobile-only{display:block}.topbar{flex-wrap:wrap}.storage-bar{order:3;width:100%;min-width:0}}