:root{--bg:#0b0c10;--panel:#151821;--text:#e5e7eb;--muted:#9aa3b2;--accent:#7dd3fc;--danger:#f87171;--ok:#34d399;--border:#273043}@media (prefers-color-scheme:light){:root{--bg:#f7fafc;--panel:#fff;--text:#0f172a;--muted:#475569;--accent:#0369a1;--danger:#b91c1c;--ok:#047857;--border:#e2e8f0}}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Arial,Apple Color Emoji,Segoe UI Emoji}.container{max-width:960px;margin:0 auto;padding:1rem}.header{background:var(--panel);border:1px solid var(--border);border-radius:12px;justify-content:space-between;align-items:center;gap:.75rem;margin-bottom:1rem;padding:.75rem 1rem;display:flex}.tabs{gap:.5rem;display:flex}.tab{border:1px solid var(--border);color:var(--text);cursor:pointer;background:0 0;border-radius:8px;padding:.45rem .7rem}.tab.active{background:var(--accent);color:#0b0c10;border-color:#0000}.btn{border:1px solid var(--border);background:var(--panel);color:var(--text);cursor:pointer;border-radius:8px;padding:.5rem .8rem}.btn.primary{background:var(--panel);color:var(--accent);border-color:var(--accent)}.btn.primary:disabled{border-color:var(--border);color:var(--muted)}.btn.danger{background:var(--danger);color:#fff;border-color:#0000}.btn.ok{background:var(--ok);color:#062e1a;border-color:#0000}.btn:disabled{opacity:.6;cursor:not-allowed}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:1rem}.row{align-items:center;gap:.5rem;display:flex}.grid{gap:.75rem;display:grid}.grid.cols-2{grid-template-columns:1fr 1fr}.grid.cols-3{grid-template-columns:1fr 1fr auto}input,select,textarea{width:100%;color:var(--text);border:1px solid var(--border);background:0 0;border-radius:8px;padding:.5rem .6rem}label{color:var(--muted);font-size:.85rem}hr{background:var(--border);border:none;height:1px;margin:1rem 0}.kbd{border:1px solid var(--border);background:#00000020;border-radius:6px;padding:.1rem .35rem;font-family:ui-monospace,Menlo,Monaco,monospace;font-size:.85rem}.table{border-collapse:collapse;width:100%}.table th,.table td{border-bottom:1px solid var(--border);text-align:left;padding:.4rem .3rem}.table th{color:var(--muted);font-weight:600}.help{color:var(--muted);font-size:.9rem}.prompt{margin:.5rem 0 0;font-size:2rem}.answer{color:var(--muted);margin-top:.25rem;font-size:1.3rem}.progress>div{background:var(--accent);height:100%}.dataset-picker{flex-wrap:wrap;align-items:center;gap:.5rem;width:100%;display:flex}.dataset-picker>label{white-space:nowrap}.dataset-picker>select{flex:1;min-width:0}.dataset-actions{gap:.5rem;display:flex}@media (width<=640px){.dataset-actions{width:100%}}