:root{color-scheme:light dark;--fg: #1b1b1f;--bg: #fafafa;--muted: #6b6b73;--line: #d9d9e0;--accent: #2f6fed;--error: #c0392b;--success: #1e7e4c;--info-bg: #eef3ff;font-family:system-ui,-apple-system,Segoe UI,Pretendard,sans-serif}@media(prefers-color-scheme:dark){:root{--fg: #ececf1;--bg: #141418;--muted: #9a9aa6;--line: #34343c;--info-bg: #1d2538}}*{box-sizing:border-box}body{margin:0;color:var(--fg);background:var(--bg)}.card{max-width:480px;margin:48px auto;padding:24px 16px}.workspace{max-width:800px;margin:0 auto;padding:16px}h1{font-size:1.5rem;margin:0 0 16px}h2{font-size:1.1rem;margin:24px 0 8px}.form{display:flex;flex-direction:column;gap:12px}.field{display:flex;flex-direction:column;gap:4px}.field span{font-size:.9rem;color:var(--muted)}input,select{font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:6px;background:transparent;color:inherit}button{font:inherit;padding:8px 14px;border:1px solid var(--accent);border-radius:6px;background:var(--accent);color:#fff;cursor:pointer}button:disabled{opacity:.6;cursor:default}button.linklike{background:none;border:none;color:var(--accent);padding:0;text-decoration:underline}.links{display:flex;gap:16px;margin-top:16px;flex-wrap:wrap}.links a{color:var(--accent)}.notice{padding:10px 12px;border-radius:6px;background:var(--info-bg);margin:8px 0}.notice-error{color:var(--error);background:transparent;border:1px solid var(--error)}.notice-success{color:var(--success);background:transparent;border:1px solid var(--success)}small.error{color:var(--error)}.list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}.list small{color:var(--muted);margin-left:6px}.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 0 16px;border-bottom:1px solid var(--line);margin-bottom:16px}.topbar .links{margin:0}code{word-break:break-all}.app{min-height:100vh;display:flex;flex-direction:column}.app>.topbar{padding:8px 16px;margin-bottom:0}.workspace-body{flex:1;display:grid;grid-template-columns:260px 1fr;min-height:0}.sidebar{border-right:1px solid var(--line);padding:12px 8px;overflow-y:auto}.sidebar-title{display:block;font-weight:600;padding:4px 8px 12px;color:inherit;text-decoration:none}.content{padding:24px 32px;max-width:900px;overflow-y:auto}.muted{color:var(--muted)}.small{font-size:.85rem}.error{color:var(--error)}.tree{list-style:none;margin:0;padding:0 0 0 12px}.sidebar-tree>.tree{padding-left:0}.tree-row{display:flex;align-items:center;gap:2px;border-radius:4px;padding:1px 2px;border:1px solid transparent}.tree-row:hover{background:var(--info-bg)}.tree-row.active{background:var(--info-bg);font-weight:600}.tree-row.drop-inside{border-color:var(--accent)}.tree-row.drop-before{border-top:2px solid var(--accent)}.tree-row.drop-after{border-bottom:2px solid var(--accent)}.tree-toggle,.tree-add{background:none;border:none;color:var(--muted);padding:0 4px;width:20px;cursor:pointer}.tree-toggle:disabled{cursor:default}.tree-add{visibility:hidden}.tree-row:hover .tree-add,.tree-add:focus{visibility:visible}.tree-link{flex:1;color:inherit;text-decoration:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:2px 0}.page-head{display:flex;gap:8px;align-items:center;margin:8px 0}.page-icon{width:56px;font-size:1.6rem;text-align:center;border-color:transparent}.page-title{flex:1;font-size:2rem;font-weight:700;border-color:transparent;padding:4px 0}.page-icon:focus,.page-title:focus{border-color:var(--line)}.page-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:16px 0}.inline{display:inline-flex;gap:6px;align-items:center}.breadcrumbs{font-size:.9rem;color:var(--muted)}.breadcrumbs a{color:inherit}button.danger{background:transparent;color:var(--error);border-color:var(--error)}@media(max-width:720px){.workspace-body{grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--line)}.content{padding:16px}}.search-box{padding:0 4px 12px}.search-box input{width:100%}.editor{margin:16px 0}.editor-status{font-size:.85rem;margin-bottom:8px}.editor-status [data-status=disconnected]{color:var(--error)}.editor .bn-container{border:1px solid var(--line);border-radius:8px;min-height:240px}.editor .bn-editor{padding-inline:44px}.snapshots{margin:12px 0 20px}.snapshots-head{display:flex;align-items:center;gap:12px}.snapshots-head h2{margin:0;font-size:1.05rem}.snapshots .list li{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.snapshots .list li.selected{font-weight:600}.snapshots .confirm{display:inline-flex;align-items:center;gap:8px}.snapshot-preview{width:100%;min-height:320px;border:1px solid var(--line);border-radius:8px;background:#fff;margin-top:8px}.modal-backdrop{position:fixed;inset:0;background:#0000008c;display:flex;align-items:center;justify-content:center;z-index:50;padding:16px}.modal{background:var(--bg);color:var(--fg);border-radius:10px;width:min(960px,100%);max-height:92vh;display:flex;flex-direction:column;overflow:hidden}.modal-head{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--line)}.modal-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.modal-head .button{font:inherit;padding:6px 12px;border:1px solid var(--accent);border-radius:6px;background:var(--accent);color:#fff;text-decoration:none}.viewer-image{max-width:100%;max-height:80vh;object-fit:contain;margin:12px auto}.viewer-frame{width:100%;height:80vh;border:0;background:#52525b}