:root{--bg:#f6f7f9;--panel:#fff;--border:#e6e8ec;--text:#15181d;--muted:#6b7280;--accent:#2f6df6;--accent-soft:#eaf1ff;--good:#15a36e;--bad:#d1453b;--radius:14px;--sidebar:248px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:14px;line-height:1.5}.shell{min-height:100vh;display:flex}.sidebar{width:var(--sidebar);flex:0 0 var(--sidebar);background:var(--panel);border-right:1px solid var(--border);flex-direction:column;gap:6px;height:100vh;padding:18px 14px;display:flex;position:sticky;top:0}.brand{align-items:center;gap:10px;padding:6px 8px 16px;display:flex}.brand .logo{color:#fff;background:linear-gradient(135deg,#2f6df6,#7aa0ff);border-radius:9px;place-items:center;width:30px;height:30px;font-weight:700;display:grid}.brand .name{font-size:15px;font-weight:700}.brand .sub{color:var(--muted);font-size:11px}.nav{flex-direction:column;gap:2px;display:flex}.nav a{color:var(--text);border-radius:10px;align-items:center;gap:10px;padding:9px 10px;font-weight:500;text-decoration:none;display:flex}.nav a:hover{background:#f1f3f6}.nav a.active{background:var(--accent-soft);color:var(--accent)}.nav .ico{text-align:center;width:18px}.sidebar .spacer{flex:1}.sidebar .foot{color:var(--muted);border-top:1px solid var(--border);padding:8px;font-size:11px}.main{flex:1;min-width:0;max-width:960px;padding:32px 40px}.page-title{margin:0 0 4px;font-size:24px;font-weight:700}.page-sub{color:var(--muted);margin:0 0 28px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:18px;padding:20px}.card h2{margin:0 0 14px;font-size:15px;font-weight:650}.row{border-bottom:1px solid #f0f1f3;justify-content:space-between;align-items:center;gap:12px;padding:9px 0;display:flex}.row:last-child{border-bottom:none}.row .label{color:var(--muted)}.grid2{grid-template-columns:1fr 1fr;gap:12px;display:grid}.btn{border:1px solid var(--border);background:var(--panel);color:var(--text);cursor:pointer;border-radius:10px;align-items:center;gap:8px;padding:9px 15px;font-size:14px;font-weight:600;display:inline-flex}.btn:hover{background:#f1f3f6}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{filter:brightness(1.05)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.good{background:var(--good);border-color:var(--good);color:#fff}.pill{border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600}.pill.on{color:var(--good);background:#e7f7f0}.pill.off{color:var(--bad);background:#fdeceb}input[type=text],input[type=number],select,textarea{border:1px solid var(--border);width:100%;font:inherit;color:var(--text);background:#fff;border-radius:10px;padding:10px 12px}textarea{resize:vertical;min-height:70px}label.field{margin-bottom:12px;display:block}label.field .lab{color:var(--muted);margin-bottom:5px;font-size:12px;display:block}.chat{flex-direction:column;gap:12px;margin-bottom:16px;display:flex}.bubble{white-space:pre-wrap;border-radius:14px;max-width:78%;padding:10px 14px}.bubble.me{background:var(--accent);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.bubble.lisa{border:1px solid var(--border);background:#fff;border-bottom-left-radius:4px;align-self:flex-start}.proposal{background:#f5f9ff;border:1px solid #cfe0ff;border-radius:12px;padding:14px}.proposal .sum{margin-bottom:8px;font-weight:600}.proposal .instr{border:1px solid var(--border);white-space:pre-wrap;background:#fff;border-radius:8px;padding:10px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}.dropzone{border:1.5px dashed var(--border);color:var(--muted);border-radius:12px;padding:10px 12px;font-size:12px}.dropzone.over{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.muted{color:var(--muted)}.attach{background:#f1f3f6;border-radius:8px;margin-right:6px;padding:4px 8px;font-size:12px;display:inline-block}.spin{color:var(--muted);font-size:13px}.tag{color:var(--muted);font-size:12px}.seg{background:#eef0f3;border-radius:12px;gap:4px;margin-bottom:22px;padding:4px;display:inline-flex}.seg button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:9px;padding:8px 16px;font-size:13.5px;font-weight:600}.seg button.active{background:var(--panel);color:var(--text);box-shadow:0 1px 2px #0000000f}.bubble-wrap{flex-direction:column;align-self:flex-start;gap:4px;max-width:88%;display:flex}.bubble-wrap.me{align-self:flex-end;align-items:flex-end}.msg-actions{color:var(--muted);align-items:center;gap:10px;padding-left:4px;font-size:12px;display:flex}.linkbtn{color:var(--accent);cursor:pointer;background:0 0;border:0;padding:0;font-size:12px;font-weight:600}.linkbtn.bad{color:var(--bad)}.correct{background:#f5f9ff;border:1px solid #cfe0ff;border-radius:12px;align-self:stretch;margin-top:4px;padding:14px}.correct h3{margin:0 0 10px;font-size:13.5px;font-weight:650}.diff{flex-direction:column;gap:6px;margin:10px 0;display:flex}.diff .ln{border-radius:8px;padding:6px 10px;font-size:13px}.diff .add{color:#0d7a52;background:#e7f7f0}.diff .rm{color:#b3362d;background:#fdeceb;text-decoration:line-through}.warn{color:#8a5a00;background:#fff7e6;border:1px solid #ffd98a;border-radius:10px;margin:10px 0;padding:11px 13px;font-size:13px}.warn label{cursor:pointer;align-items:flex-start;gap:8px;margin-top:8px;font-weight:600;display:flex}.warn input{width:auto}.ba{gap:8px;margin-top:12px;display:grid}.ba .col{border:1px solid var(--border);background:#fff;border-radius:10px;padding:10px 12px}.ba .col .k{letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-bottom:4px;font-size:11px;font-weight:700}.ba .col.before .body{color:var(--muted);text-decoration:line-through}.ba .col.after{background:#f4fbf8;border-color:#b8e6d2}