:root{--sidebar-w: 420px;--chat-w: 380px;--plate-h: 40vh;--readouts-h: 190px;--bg: #14161a;--panel: #1d2026;--border: #2c3038;--text: #e6e6e6;--muted: #9aa0a8;--accent: #e0a23a;--danger: #d9534f}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font:13px/1.4 system-ui,sans-serif}#app{display:grid;grid-template-columns:var(--sidebar-w) 6px 1fr;height:100vh}#app.with-chat{grid-template-columns:var(--sidebar-w) 6px 1fr 6px var(--chat-w)}.splitter.hidden,#chat.hidden{display:none}.splitter{background:var(--border);flex:none}.splitter.vertical{width:6px;cursor:col-resize}.splitter.horizontal{height:6px;cursor:row-resize}.splitter:hover,.splitter.active{background:var(--accent)}#sidebar{background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;min-height:0}#sidebar header{padding:10px 12px 4px;display:flex;align-items:baseline;gap:8px}.chat-toggle{margin-left:auto;padding:2px 10px}#sidebar h1{margin:0;font-size:18px;display:inline}.subtitle{color:var(--muted);margin-left:8px}.run{padding:6px 12px;border-bottom:1px solid var(--border)}.row{display:flex;gap:6px;align-items:center;margin:4px 0}.row label{display:flex;gap:6px;align-items:center;flex:1}.row select,.buttons button{flex:1}button{background:#2a2e36;color:var(--text);border:1px solid var(--border);border-radius:4px;padding:5px 10px;cursor:pointer}button:hover:not(:disabled){background:#343943}button:disabled{opacity:.45;cursor:default}button.primary{background:var(--accent);color:#111;border-color:var(--accent);font-weight:600}select,input[type=text],input[type=number]{background:#111318;color:var(--text);border:1px solid var(--border);border-radius:3px;padding:3px 5px}progress{flex:1;height:10px}.muted{color:var(--muted)}.tabs{display:flex;border-bottom:1px solid var(--border)}.tabs button{flex:1;border:none;border-radius:0;background:transparent;padding:6px;color:var(--muted)}.tabs button.active{color:var(--text);border-bottom:2px solid var(--accent)}.tab{flex:1;min-height:0;overflow:auto}.tab.hidden{display:none}#editor{height:100%}#editor .cm-editor{height:100%;font-size:12px}#editor .cm-scroller{font-family:ui-monospace,Menlo,Consolas,monospace}#issues{list-style:none;margin:0;padding:4px 12px;max-height:120px;overflow:auto;border-top:1px solid var(--border);font-size:12px}#issues li{color:var(--danger)}#issues li.ok{color:#6fbf73}#issues code{color:var(--text)}#form{padding:6px 10px}#form details{margin-bottom:4px}#form summary{cursor:pointer;font-weight:600;padding:3px 0}#form .grid{display:grid;grid-template-columns:1fr 120px;gap:3px 8px;align-items:center;padding:2px 0 6px 10px}#form .grid label{color:var(--muted)}#form .grid label span.unit{color:#6d737b;margin-left:4px}#form .hit{border:1px solid var(--border);border-radius:4px;padding:4px 8px;margin:4px 0}#form .hit .head{display:flex;justify-content:space-between;align-items:center}#form input[type=number]{width:100%}#summary{padding:6px 12px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;white-space:pre-wrap}main{display:flex;flex-direction:column;min-height:0;min-width:0}main section{min-height:0;display:flex;flex-direction:column}#plate-section{height:var(--plate-h);flex:none}#spec-section{flex:1;min-height:60px}#playback{flex:none;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.toolbar{display:flex;gap:14px;align-items:center;padding:4px 10px;font-weight:600}.toolbar label{font-weight:400;color:var(--muted);display:flex;gap:6px;align-items:center}canvas{flex:1;width:100%;height:100%;display:block;min-height:0}#playback{flex-direction:row;align-items:center;gap:10px;padding:6px 10px}#playback #position{flex:1}#playback label{color:var(--muted);display:flex;gap:6px;align-items:center}#readouts{padding:6px 10px;height:var(--readouts-h);flex:none;overflow:auto;font-size:12px}#readouts table{border-collapse:collapse;margin-right:24px;display:inline-table;vertical-align:top}#readouts th,#readouts td{padding:1px 8px;text-align:right;border-bottom:1px solid var(--border)}#readouts th{color:var(--muted);font-weight:400}#readouts .log{font-family:ui-monospace,Menlo,Consolas,monospace;color:var(--muted);white-space:pre-wrap;margin-top:4px}@media(max-width:900px){#app{grid-template-columns:1fr;grid-template-rows:auto auto 1fr}#sidebar{max-height:45vh}.splitter.vertical{display:none}}#chat{background:var(--panel);border-left:1px solid var(--border);display:flex;flex-direction:column;min-height:0;min-width:0}.chat-head{display:flex;align-items:center;gap:8px;padding:8px 10px;border-bottom:1px solid var(--border)}.chat-head .spacer{flex:1}.chat-head .dot{width:9px;height:9px;border-radius:50%;background:#666}.chat-head .dot.on{background:#6fbf73}.chat-head .dot.busy{background:var(--accent)}.chat-head .dot.off{background:#888}.chat-help{padding:8px 10px;color:var(--muted);font-size:12px;border-bottom:1px solid var(--border);line-height:1.5}.chat-help code{color:var(--text);font-size:11px;word-break:break-all}.chat-log{flex:1;overflow:auto;padding:8px 10px;display:flex;flex-direction:column;gap:8px}.msg{max-width:100%;border-radius:8px;padding:6px 10px;font-size:13px;line-height:1.45;white-space:pre-wrap;word-break:break-word}.msg.user{background:#2c3a55;align-self:flex-end}.msg.assistant{background:#262a32;white-space:normal}.msg.assistant p{margin:0 0 6px}.msg.assistant p:last-child{margin:0}.msg.assistant pre{background:#111318;padding:6px 8px;border-radius:4px;overflow:auto;font-size:11px;margin:4px 0}.msg.assistant code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px}.msg.assistant ul,.msg.assistant ol{margin:2px 0 6px 18px;padding:0}.msg.assistant h4{margin:4px 0}.msg.tool{color:var(--muted);font-family:ui-monospace,Menlo,Consolas,monospace;font-size:11px;padding:2px 6px}.msg.tool:before{content:"▸ "}.msg.system{color:var(--muted);font-size:11px;font-style:italic;padding:2px 6px;align-self:center}.chat-input{border-top:1px solid var(--border);padding:8px 10px;display:flex;flex-direction:column;gap:6px}.chat-input textarea{width:100%;resize:vertical;background:#111318;color:var(--text);border:1px solid var(--border);border-radius:4px;padding:6px;font:inherit}.chat-buttons{display:flex;justify-content:flex-end;gap:6px}.movie-bar{border-top:1px solid var(--border);font-weight:400}.movie-bar #movie-pos{flex:1;min-width:60px}.movie-bar input[type=number]{width:70px}.toolbar input[type=number]{background:#111318;color:var(--text);border:1px solid var(--border);border-radius:3px;padding:2px 4px}