:root{--bg: #0e1116;--panel: #161b22;--panel-2: #1c232c;--border: #30363d;--text: #c9d1d9;--muted: #8b949e;--buy: #2ea043;--sell: #f85149;--accent: #58a6ff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:13px/1.4 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}code{color:var(--muted)}.topbar{display:flex;align-items:baseline;gap:16px;padding:10px 16px;border-bottom:1px solid var(--border);background:var(--panel)}.brand{font-size:16px;font-weight:700;color:#fff}.tag{color:var(--muted);font-size:11px}.underlying{margin-left:auto;color:var(--text)}.underlying strong{color:var(--accent)}.feed{font-size:10px;padding:1px 5px;border-radius:3px;text-transform:uppercase;letter-spacing:.04em}.feed.live{background:#2ea04338;color:#7ee2a8}.feed.synth{background:var(--panel-2);color:var(--muted)}.ticker-select{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:5px;padding:4px 8px;font:inherit;font-weight:700}.grid{display:grid;grid-template-columns:2fr 1fr;grid-template-areas:"chain ticket" "chain payoff" "positions positions" "orders orders";gap:12px;padding:12px;align-items:start}.chain-pane{grid-area:chain}.ticket-pane{grid-area:ticket}.payoff-pane{grid-area:payoff}.positions-pane{grid-area:positions}.orders-pane{grid-area:orders}.account{color:var(--text);display:flex;align-items:center;gap:6px}.account strong{color:var(--buy)}.account .level{background:var(--accent);color:#0b0e13;border-radius:4px;padding:1px 6px;font-weight:700}.account .margin-call{background:var(--sell);color:#fff;font-weight:700;font-size:10px;padding:1px 6px;border-radius:4px;letter-spacing:.04em;animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.5}}.blotter tr.liq td{color:#ffb86b}.liq-tag{background:#ffb86b;color:#0b0e13;font-size:9px;font-weight:700;border-radius:3px;padding:0 4px;margin-left:6px}.settle-tag{background:var(--accent);color:#0b0e13;font-size:9px;font-weight:700;border-radius:3px;padding:0 4px;margin-left:6px}.expire-btn{background:var(--panel-2);color:var(--accent);border:1px solid var(--accent);border-radius:5px;padding:3px 8px;font:inherit;font-size:11px;cursor:pointer}.positions .stock-row td{color:#c9b3ff}.stock-tag{background:#c9b3ff;color:#0b0e13;font-size:9px;font-weight:700;border-radius:3px;padding:0 4px;margin-left:6px}.account .signout{margin-left:8px;background:transparent;color:var(--muted);border:1px solid var(--border);border-radius:4px;padding:2px 8px;cursor:pointer;font:inherit;font-size:11px}.onboard-wrap{display:flex;justify-content:center;padding:40px 12px}.onboard{width:520px;max-width:100%}.onboard-form{display:grid;grid-template-columns:1fr 1fr;gap:10px 14px}.onboard-form .full{grid-column:1 / -1}.onboard-form label{display:flex;flex-direction:column;gap:4px;font-size:11px;color:var(--muted)}.onboard-form input,.onboard-form select{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:5px;padding:6px 7px;font:inherit}.onboard .verify{display:flex;flex-direction:column;gap:10px}.onboard button.full{grid-column:1 / -1;width:100%}.positions th,.positions td{padding:4px 10px;text-align:right;border-bottom:1px solid var(--border)}.positions th:first-child,.positions td:first-child{text-align:left}.positions thead th{color:var(--muted);font-weight:400}.positions tfoot th,.positions tfoot td{color:var(--muted);border-top:1px solid var(--border);border-bottom:0}.positions .pos,.blotter .pos{color:var(--buy)}.positions .neg,.blotter .neg{color:var(--sell)}.pane{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:12px}.pane h2{margin:0 0 10px;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.pane h3{margin:16px 0 8px;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.pane-head{display:flex;align-items:center;justify-content:space-between}.mode-toggle{display:flex;gap:2px;margin-bottom:10px}.mode-toggle button{background:var(--panel-2);color:var(--muted);border:1px solid var(--border);padding:3px 10px;cursor:pointer;font:inherit;font-size:11px}.mode-toggle button:first-child{border-radius:5px 0 0 5px}.mode-toggle button:last-child{border-radius:0 5px 5px 0}.mode-toggle button.active{background:var(--accent);color:#0b0e13;border-color:var(--accent)}.hint,.loading{color:var(--muted);padding:8px 0}table{border-collapse:collapse;width:100%}.chain th,.chain td{padding:3px 8px;text-align:right}.chain thead .group th{text-align:center;color:var(--muted);border-bottom:1px solid var(--border)}.chain thead tr:last-child th{color:var(--muted);font-weight:400;border-bottom:1px solid var(--border)}.chain .strike-col{text-align:center;font-weight:700;color:#fff;background:var(--panel-2)}.chain tbody tr:hover{background:#11161d}.clickable{cursor:pointer}.call.clickable:hover{background:#2ea04324}.put.clickable:hover{background:#f8514924}.selected{background:#58a6ff2e!important}.ticket{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px}.ticket .series{grid-column:1 / -1;color:var(--text)}.ticket label{display:flex;flex-direction:column;gap:3px;font-size:11px;color:var(--muted)}.ticket input,.ticket select{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:5px;padding:5px 6px;font:inherit}.ticket .est{grid-column:1 / -1;color:var(--muted)}.ticket .est strong{color:var(--text)}.ticket button{grid-column:1 / -1;padding:8px;border:0;border-radius:6px;font:inherit;font-weight:700;color:#fff;cursor:pointer}.ticket button.buy{background:var(--buy)}.ticket button.sell{background:var(--sell)}.msg{grid-column:1 / -1;padding:6px 8px;border-radius:5px}.msg.ok{background:#2ea0432e;color:#7ee2a8}.msg.err{background:#f851492e;color:#ffa198}.payoff-svg{width:100%;height:170px;background:var(--panel-2);border-radius:6px}.payoff-svg .axis{stroke:var(--border);stroke-width:1}.payoff-svg .spot-line{stroke:var(--accent);stroke-dasharray:3 3;stroke-width:1}.payoff-svg .strike-line{stroke:var(--muted);stroke-dasharray:2 4;stroke-width:1}.payoff-svg .pl-line{fill:none;stroke:#7ee2a8;stroke-width:2}.legend{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:11px;margin:6px 0}.legend .dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-left:6px}.legend .dot.spot{background:var(--accent)}.legend .dot.strike{background:var(--muted)}.greeks{margin-top:6px}.greeks th{text-align:left;color:var(--muted);font-weight:400;padding:2px 8px 2px 0}.greeks td{text-align:right;padding:2px 16px 2px 0}.disclaimer{color:var(--muted);font-size:10px;margin:8px 0 0}.blotter th,.blotter td{padding:4px 10px;text-align:left;border-bottom:1px solid var(--border)}.blotter th{color:var(--muted);font-weight:400}.blotter .status-filled td{color:#7ee2a8}.blotter .status-rejected td,.blotter .status-canceled td{color:var(--muted)}.blotter button{background:transparent;color:var(--sell);border:1px solid var(--sell);border-radius:4px;padding:2px 8px;cursor:pointer;font:inherit}@media (max-width: 720px){body{font-size:12px}.grid{grid-template-columns:1fr;grid-template-areas:"chain" "ticket" "payoff" "positions" "orders";gap:10px;padding:10px}.topbar{flex-wrap:wrap;gap:4px 10px;padding:8px 10px}.topbar .tag{display:none}.brand{font-size:15px}.underlying{margin-left:0;flex-basis:100%}.account{flex-basis:100%;flex-wrap:wrap;font-size:11px}.account .signout{margin-left:auto}.pane{overflow-x:auto;-webkit-overflow-scrolling:touch}.chain{font-size:11px}.chain th,.chain td,.blotter th,.blotter td,.positions th,.positions td{padding:3px 6px}.onboard{width:100%}.mode-toggle button,.ticker-select,.account .signout{padding:5px 10px}}