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textarea:focus{outline:none;border-color:var(--magenta-500);box-shadow:0 0 0 4px #b8286e1a}.file-manager{display:grid;grid-template-columns:260px 1fr;gap:18px;align-items:start}.tree-panel{padding:14px}.tree-row{display:flex;align-items:center;gap:8px;padding:8px;border-radius:8px;cursor:pointer;font-size:13.5px;color:var(--ink-900);white-space:nowrap}.tree-row:hover{background:var(--cream-50)}.tree-row.active{background:var(--cream-100);color:var(--magenta-700);font-weight:600}.tree-row svg{flex-shrink:0;color:var(--ink-400)}.tree-row.active svg{color:var(--magenta-700)}.chevron{transition:transform .15s ease;flex-shrink:0}.chevron.open{transform:rotate(90deg)}.chevron-spacer{width:12px;flex-shrink:0}.tree-children{margin-left:10px;border-left:1px dashed var(--line)}.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:14px}.file-card{position:relative;border:1px solid var(--line);border-radius:12px;padding:12px;background:var(--white);cursor:pointer;text-align:center;font-family:inherit}.file-delete{position:absolute;top:8px;right:8px;width:24px;height:24px;border-radius:7px;border:1px solid var(--line);background:var(--white);color:var(--ink-400);display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:2}.file-delete:hover{border-color:var(--danger);color:var(--danger)}.file-card:hover{border-color:var(--magenta-500)}.file-thumb{width:100%;height:90px;border-radius:8px;background:var(--cream-100);color:var(--magenta-700);display:flex;align-items:center;justify-content:center;overflow:hidden;margin-bottom:8px}.file-thumb img{width:100%;height:100%;object-fit:cover}.folder-thumb{color:var(--orange-500)}.file-name{font-size:12.5px;font-weight:600;overflow-wrap:break-word}.file-meta{font-size:11px;color:var(--ink-400);margin-top:2px}.file-card-add{background:transparent;border:1.5px dashed var(--line)}.file-card-add:hover{border-color:var(--magenta-500)}.file-card-add .file-name{color:var(--magenta-700)}.add-thumb{background:transparent;color:var(--magenta-500)}@media (max-width: 1100px){.stat-grid{grid-template-columns:repeat(2,1fr)}.grid-2{grid-template-columns:1fr}}@media (max-width: 920px){.sidebar{position:fixed;top:0;left:0;bottom:0;z-index:100;transform:translate(-100%);transition:transform .25s ease;box-shadow:var(--shadow)}.sidebar.sidebar-open{transform:translate(0)}.sidebar-overlay{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#2b1b2e73;z-index:90}.hamburger{display:flex}.search{max-width:none}.content{padding:22px 18px}.topbar{padding:0 18px}.brand-side{display:none}.form-side{padding:32px 20px}.chat-layout.with-list{grid-template-columns:1fr}.chat-client-list{height:260px}}@media (max-width: 640px){.stat-grid{grid-template-columns:1fr}.page-head{flex-direction:column;align-items:flex-start}.page-actions{width:100%}.page-actions .btn{flex:1;justify-content:center}.user-chip .role{display:none}.topbar-right{gap:10px}.file-manager{grid-template-columns:1fr}}