:root{--bg: #0f1115;--panel: #181b22;--border: #2a2f3a;--text: #e7e9ee;--muted: #9aa3b2;--accent: #1f9d6b;--accent-hover: #25b97e;--danger: #e5534b;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.shell{max-width:760px;margin:0 auto;padding:32px 20px 80px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.topbar h1{font-size:18px;margin:0;letter-spacing:.5px}.topbar .who{color:var(--muted);font-size:13px;display:flex;gap:12px;align-items:center}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:22px;margin-bottom:22px}.card h2{margin:0 0 4px;font-size:15px}.card p.hint{margin:0 0 18px;color:var(--muted);font-size:12.5px}label,.field-label{display:block;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px;margin:14px 0 6px}input,textarea,select{width:100%;background:#0f1218;border:1px solid var(--border);color:var(--text);border-radius:8px;padding:10px 12px;font-size:14px;font-family:inherit}textarea{min-height:160px;resize:vertical}.row{display:flex;gap:14px}.row>div{flex:1}button{background:var(--accent);color:#fff;border:none;border-radius:8px;padding:11px 18px;font-size:13px;font-weight:600;letter-spacing:.3px;cursor:pointer;margin-top:18px}button:hover:not(:disabled){background:var(--accent-hover)}button:disabled{opacity:.55;cursor:not-allowed}button.ghost{background:transparent;border:1px solid var(--border);color:var(--muted);margin:0;padding:6px 12px;font-weight:500}.result{margin-top:16px;padding:12px 14px;border-radius:8px;font-size:13px;white-space:pre-wrap}.result.ok{background:#1f9d6b1f;border:1px solid rgba(31,157,107,.4)}.result.err{background:#e5534b1f;border:1px solid rgba(229,83,75,.4);color:#f1b0ab}.login{max-width:380px;margin:12vh auto 0}.nav{display:flex;gap:8px;margin-bottom:22px}.nav button.active{background:var(--accent);color:#fff;margin:0;padding:8px 14px}.nav button.ghost{margin:0;padding:8px 14px}.metric-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px;margin-top:8px}.metric{background:#0f1218;border:1px solid var(--border);border-radius:10px;padding:14px}.metric .value{font-size:22px;font-weight:700}.metric .label{margin-top:4px;font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.modes{display:flex;gap:8px;margin-bottom:18px}.modes button.active{background:var(--accent);color:#fff;margin:0;padding:8px 14px}.modes button.ghost{margin:0;padding:8px 14px}.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{margin:0;padding:6px 12px;background:#0f1218;border:1px solid var(--border);color:var(--muted);font-weight:500}.chip.active{background:var(--accent);color:#fff}.builder-row{display:flex;gap:8px;align-items:center;margin-bottom:8px}.builder-row>input,.builder-row>select{flex:1}.builder-row>button{flex:0 0 auto}.exhibit{border:1px solid var(--border);border-radius:8px;padding:12px;margin-bottom:12px}.grid-row{display:flex;gap:6px;margin-bottom:6px}.grid-row>input{flex:1}