:root{--bg: #f5f7fa;--panel: #ffffff;--panel2: #eef1f5;--line: #d9dee5;--text: #1a1f27;--muted: #667085;--accent: #2f6fe0;--accent2: #2560c9;--ok: #1a8f52;--warn: #b7791f;--danger: #d14343;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.app{display:flex;flex-direction:column;height:100vh}header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;border-bottom:1px solid var(--line);background:var(--panel)}header h1{margin:0;font-size:20px}.tagline{color:var(--muted);font-size:13px;margin-left:10px}.header-right{display:flex;align-items:center;gap:20px}.health{display:flex;gap:14px;font-size:12px;color:var(--muted)}.health .ok{color:var(--ok)}.health .warn{color:var(--warn)}.user{display:flex;align-items:center;gap:10px;font-size:13px}.user .uname{color:var(--text);max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user .logout{color:var(--accent);text-decoration:none;font-size:12px}.user .logout:hover{text-decoration:underline}.user .badge{background:var(--warn);color:#fff;font-size:10px;padding:2px 7px;border-radius:10px;text-transform:uppercase;letter-spacing:.04em}.login{display:flex;align-items:center;justify-content:center;height:100vh}.login-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:40px 44px;text-align:center;max-width:420px}.login-card h1{margin:0 0 4px;font-size:28px}.login-card .tagline{color:var(--muted);margin:0 0 20px}.login-btn{display:inline-block;margin-top:12px;background:var(--accent2);color:#fff;border-radius:8px;padding:12px 32px;text-decoration:none;font-size:15px}.login-btn:hover{background:var(--accent)}.small{font-size:11px;margin-top:14px}.error{background:#fdecec;color:#9b2c2c;border-bottom:1px solid #f3c9c9;padding:10px 20px;cursor:pointer}.error em{color:#b06a6a;font-style:normal;font-size:12px}.body{display:flex;flex:1;overflow:hidden}aside{width:280px;border-right:1px solid var(--line);padding:16px;overflow-y:auto;background:var(--panel)}aside h3{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.05em}main{flex:1;overflow-y:auto;padding:24px 32px}.new-session{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}input,textarea,select{background:var(--panel2);border:1px solid var(--line);color:var(--text);border-radius:6px;padding:8px 10px;font-size:14px;font-family:inherit}textarea{width:100%;resize:vertical;line-height:1.4}button{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:6px;padding:8px 14px;cursor:pointer;font-size:14px}button:hover:not(:disabled){border-color:var(--accent)}button:disabled{opacity:.45;cursor:not-allowed}button.primary{background:var(--accent2);border-color:var(--accent2);color:#fff}button.primary:hover:not(:disabled){background:var(--accent)}button.danger{border-color:var(--danger);color:#b42318}.sessions{list-style:none;padding:0;margin:0}.sessions li{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:9px 10px;border-radius:6px;cursor:pointer;margin-bottom:4px}.sessions li:hover{background:var(--panel2)}.sessions li.active{background:var(--panel2);outline:1px solid var(--accent)}.sessions li.muted{color:var(--muted);cursor:default}.sessions strong{font-weight:500;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.state{font-size:11px;padding:2px 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input[type=file]{font-size:12px}.filelist{margin:4px 0 0;padding-left:16px;font-size:12px;color:var(--muted)}.docs{width:100%;border-collapse:collapse;margin-top:14px;font-size:13px}.docs th,.docs td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line)}.docs th{color:var(--muted);font-weight:500}.model-row{display:flex;align-items:flex-end;gap:16px;flex-wrap:wrap}.model-row.advanced{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}.field{display:flex;flex-direction:column;gap:4px;min-width:240px;flex:1}.field>span{font-size:12px;color:var(--muted)}.field em{font-style:normal;opacity:.7}.check{display:flex;align-items:center;gap:7px;font-size:13px;padding-bottom:8px;cursor:pointer}.check input{accent-color:var(--accent)}button.link{background:none;border:none;color:var(--accent);padding:0 0 8px;font-size:12px}button.link:hover{text-decoration:underline}.step{margin:12px 0}.step 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