:root{--bg: #020817;--surface: #0f172a;--surface-2: #1e293b;--border: #334155;--text: #f8fafc;--text-dim: #94a3b8;--accent: #3b82f6;--accent-2: #6366f1;--green: #22c55e;--blue: #3b82f6;--yellow: #f59e0b;--red: #ef4444;--radius: 8px;--mono: ui-monospace, "SF Mono", Menlo, monospace}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif;font-size:14px;line-height:1.5}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.app{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--surface);border-right:1px solid var(--border);padding:20px 16px;position:sticky;top:0;height:100vh;flex-shrink:0}.sidebar .logo{font-weight:700;font-size:16px;margin-bottom:4px;display:flex;align-items:center;gap:8px}.sidebar .logo .dot{color:var(--accent)}.sidebar .tagline{color:var(--text-dim);font-size:12px;margin-bottom:24px}.nav-link{display:block;padding:8px 12px;border-radius:8px;color:var(--text-dim);margin-bottom:2px;font-weight:500}.nav-link:hover{background:var(--surface-2);text-decoration:none;color:var(--text)}.nav-link.active{background:var(--surface-2);color:var(--text)}.main{flex:1;padding:32px 40px;max-width:1100px}h1{font-size:22px;margin:0 0 4px}h2{font-size:17px;margin:28px 0 12px}h3{font-size:14px;margin:18px 0 8px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px}.page-sub{color:var(--text-dim);margin:0 0 24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;margin-bottom:14px}.card.clickable{cursor:pointer;transition:border-color .15s}.card.clickable:hover{border-color:var(--accent)}.card-title{font-weight:600;font-size:15px;margin-bottom:4px}.card-meta{color:var(--text-dim);font-size:12px}.grid{display:grid;gap:14px}.grid-2{grid-template-columns:1fr 1fr}.grid-3{grid-template-columns:repeat(3,1fr)}button,.btn{font:inherit;border:1px solid var(--border);background:var(--surface-2);color:var(--text);padding:8px 16px;border-radius:8px;cursor:pointer;font-weight:500;transition:all .15s}button:hover:not(:disabled){border-color:var(--text-dim)}button:disabled{opacity:.4;cursor:not-allowed}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover:not(:disabled){background:#2563eb;border-color:#2563eb}button.ghost{background:transparent}.btn-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:14px 0}textarea,input,select{font:inherit;width:100%;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:10px 12px}textarea{font-family:var(--mono);font-size:12.5px;min-height:280px;resize:vertical}label{display:block;font-size:12px;color:var(--text-dim);margin:12px 0 4px}.badge{display:inline-block;padding:2px 9px;border-radius:100px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.3px}.badge.pending{background:#30363d;color:var(--text-dim)}.badge.sampling{background:#1f3a5f;color:var(--blue)}.badge.awaiting_approval{background:#4d3a17;color:var(--yellow)}.badge.batching,.badge.running{background:#16341b;color:var(--green)}.badge.analyzing,.badge.reporting{background:#3a2b52;color:#b07ddb}.badge.done{background:#16341b;color:var(--green)}.badge.failed{background:#4a1d1d;color:#f85149}.badge.paused{background:#4d3a17;color:var(--yellow)}table{width:100%;border-collapse:collapse;font-size:13px;margin:8px 0}th,td{text-align:left;padding:7px 10px;border-bottom:1px solid var(--border)}th{color:var(--text-dim);font-weight:600;font-size:11px;text-transform:uppercase}td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}.progress{height:8px;background:var(--surface-2);border-radius:100px;overflow:hidden;margin:6px 0}.progress .bar{height:100%;background:var(--green);transition:width .3s}.gap-row{display:flex;align-items:center;gap:10px;margin:4px 0;font-size:13px}.gap-row .label{width:110px;flex-shrink:0;color:var(--text-dim)}.gap-bar{flex:1;height:18px;background:var(--surface-2);border-radius:5px;overflow:hidden;position:relative}.gap-bar .fill{height:100%;background:var(--green)}.gap-bar .fill.deficit{background:var(--accent)}.gap-row .vals{width:130px;text-align:right;font-variant-numeric:tabular-nums;font-size:12px}.muted{color:var(--text-dim)}.mono{font-family:var(--mono);font-size:12px}.pill{background:var(--surface-2);padding:2px 8px;border-radius:5px;font-size:11px;font-family:var(--mono)}.kv{display:flex;gap:8px;font-size:13px;margin:3px 0}.kv .k{color:var(--text-dim);width:140px;flex-shrink:0}.spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;bottom:24px;right:24px;background:var(--surface-2);border:1px solid var(--border);padding:12px 18px;border-radius:8px;max-width:360px;z-index:100}.toast.error{border-color:#f85149}.empty{text-align:center;color:var(--text-dim);padding:60px 20px}.stepper{display:flex;gap:4px;margin-bottom:24px;flex-wrap:wrap}.step{display:flex;align-items:center;gap:6px;padding:6px 12px;border-radius:6px;font-size:12px;color:var(--text-dim);background:var(--surface)}.step.active{color:var(--text);background:var(--surface-2)}.step.done{color:var(--green)}.step .n{width:18px;height:18px;border-radius:50%;background:var(--surface-2);display:inline-flex;align-items:center;justify-content:center;font-size:11px}.step.active .n{background:var(--accent);color:#fff}.step.done .n{background:var(--green);color:#fff}.report-md{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 36px}.report-md h1{font-size:24px;border-bottom:1px solid var(--border);padding-bottom:12px}.report-md h2{font-size:19px;color:var(--text);text-transform:none;letter-spacing:0}.report-md h3,.report-md h4{color:var(--text);text-transform:none;letter-spacing:0}.report-md table{font-size:13px}.report-md code{background:var(--surface-2);padding:1px 5px;border-radius:4px;font-size:12px}.report-md blockquote{border-left:3px solid var(--accent);margin-left:0;padding-left:14px;color:var(--text-dim)}.chat{display:flex;flex-direction:column;height:640px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.chat-head{padding:12px 18px;border-bottom:1px solid var(--border);font-weight:600;font-size:13px;display:flex;align-items:center;gap:6px}.chat-log{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:14px}.chat-empty{color:var(--text-dim)}.chat-suggestions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.chip{background:var(--surface-2);border:1px solid var(--border);border-radius:100px;padding:6px 14px;font-size:12.5px;color:var(--text);cursor:pointer}.chip:hover{border-color:var(--accent)}.chat-msg{display:flex;flex-direction:column;max-width:80%}.chat-msg.user{align-self:flex-end;align-items:flex-end}.chat-msg.assistant{align-self:flex-start;align-items:flex-start}.chat-bubble{padding:10px 14px;border-radius:12px;font-size:13.5px;line-height:1.55;white-space:pre-wrap}.chat-msg.user .chat-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.chat-msg.assistant .chat-bubble{background:var(--surface-2);border:1px solid var(--border);border-bottom-left-radius:4px}.chat-changes{margin-top:6px;display:flex;flex-direction:column;gap:3px}.chat-change{font-size:11.5px;color:var(--green);font-family:var(--mono)}.chat-input{display:flex;gap:10px;padding:14px 16px;border-top:1px solid var(--border);align-items:flex-end}.chat-input textarea{min-height:0;font-family:inherit;font-size:13.5px}.chat-input button{flex-shrink:0}.sidebar-user{position:absolute;bottom:18px;left:16px;right:16px;padding-top:14px;border-top:1px solid var(--border)}.signin-screen{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:28px;background:var(--bg)}.signin-brand{text-align:center;font-weight:700;font-size:20px}.signin-brand .dot{color:var(--accent)}.signin-brand .tagline{color:var(--text-dim);font-size:12px;font-weight:400;margin-top:4px}