.worker-lab{border:1px solid var(--line);background:var(--surface);border-radius:8px;margin-bottom:40px;overflow:hidden}.lab-toolbar{border-bottom:1px solid var(--line);background:var(--soft);justify-content:space-between;align-items:center;gap:15px;padding:15px 22px;display:flex}.lab-toolbar>.mono{letter-spacing:.5px;color:var(--muted);font-size:10px}.reset-button{color:var(--muted);padding:6px;font-size:11px}.reset-button:hover{color:var(--accent)}.lab-board{background-image:radial-gradient(var(--line) .6px,transparent .6px);background-size:17px 17px;grid-template-columns:1fr .8fr 1fr;align-items:center;gap:25px;padding:45px 50px;display:grid;position:relative}.simulation-host,.simulation-worker{border:1px solid var(--line);background:var(--bg);border-radius:7px;min-width:0;min-height:220px;padding:22px}.simulation-worker{transition:background .2s,border-color .2s}.simulation-worker[data-state=running]{background:var(--accent-soft);border-color:var(--accent)}.worker-heading{justify-content:space-between;align-items:center;gap:10px;display:flex}.worker-status{font:9px var(--mono);color:var(--muted);white-space:nowrap}.simulation-worker[data-state=running] .worker-status{color:var(--accent)}.sim-node-icon{width:30px;height:30px;color:var(--accent);font:25px var(--mono);place-items:center;margin-block:20px 13px;display:grid}.lab-board h2{letter-spacing:-.7px;font-size:20px}.lab-board p{margin-block:9px 14px;font-size:10px;line-height:1.7}.sim-tag{letter-spacing:.5px;color:var(--faint);font-size:8px}.simulation-channel{text-align:center;min-width:0}.simulation-channel>.eyebrow{letter-spacing:.8px;font-size:8px}.channel-track{border-block:1px dashed var(--line);height:45px;color:var(--accent);justify-content:space-around;align-items:center;margin-block:15px;display:flex}.simulation-channel>.mono{color:var(--muted);font-size:8px}.lab-controls{border-top:1px solid var(--line);flex-wrap:wrap;gap:8px;padding:20px 22px;display:flex}.lab-controls .button{min-height:40px;padding:8px 13px;font-size:11px}.message-input{flex:1;min-width:140px;max-width:210px}.message-input input{border:1px solid var(--line);background:var(--bg);width:100%;height:40px;color:var(--ink);font:11px var(--mono);border-radius:5px;padding:8px 10px}.message-input input:disabled{opacity:.45}.exit-button:not(:disabled){border-color:var(--muted)}.lab-explanation{background:var(--accent-soft);color:var(--ink);border-block:1px solid var(--line);padding:15px 23px;font-size:12px;line-height:1.9}.lab-lower{grid-template-columns:1fr 1fr;display:grid}.queue-panel{border-right:1px solid var(--line)}.panel-heading{justify-content:space-between;align-items:center;gap:12px;padding:20px 23px 15px;display:flex}.panel-heading h3{font-size:13px}.panel-heading .mono{color:var(--muted);font-size:9px}.panel-empty{color:var(--faint);padding:25px 0;font-size:11px;list-style:none}.message-queue{height:175px;padding:0 23px;overflow:auto}.message-item{border:1px solid var(--line);overflow-wrap:anywhere;border-radius:4px;align-items:start;gap:10px;margin-block:5px;padding:8px 10px;font-size:11px;display:flex}.message-item>.mono{color:var(--accent);padding-top:2px;font-size:9px}.message-item>span:nth-child(2){flex:1;min-width:0}.message-item small{color:var(--faint);font:8px var(--mono)}.lab-counters{border-top:1px solid var(--line);color:var(--muted);gap:25px;padding:15px 23px;font-size:10px;display:flex}.lab-counters b{font:14px var(--mono);color:var(--ink);margin-left:6px;font-weight:500}.event-log{height:225px;margin:0;padding:0 23px 20px;list-style:none;overflow:auto}.event-log li:not(.panel-empty){color:var(--muted);border-bottom:1px solid var(--line);grid-template-columns:20px 18px 1fr;gap:6px;padding-block:7px;font-size:10px;line-height:1.8;display:grid}.event-step{color:var(--faint);padding-top:3px;font-size:8px}.event-instance{color:var(--accent);padding-top:3px;font-size:8px}.event-log li[data-kind=cancel]>span:last-child{color:var(--ink)}.lab-footnotes{max-width:850px;margin-bottom:65px}.lab-footnotes h2{margin-bottom:15px;font-size:24px}.lab-footnotes p{margin-block:12px;font-size:13px;line-height:2}.lab-footnotes a{color:var(--accent);text-underline-offset:3px;text-decoration:underline}@media (width<=1000px){.lab-board{grid-template-columns:1fr .6fr 1fr;gap:15px;padding:30px 25px}.simulation-host,.simulation-worker{padding:18px}.lab-controls{gap:7px}.message-input{max-width:none}}@media (width<=760px){.lab-toolbar{padding:12px 15px}.lab-toolbar>.mono{letter-spacing:0;font-size:8px}.reset-button{white-space:nowrap;font-size:10px}.lab-board{grid-template-columns:1fr 1fr;gap:12px;padding:20px 15px}.simulation-channel{grid-area:2/1/auto/-1}.simulation-channel>.eyebrow{display:none}.channel-track{height:24px;margin-block:0 5px}.simulation-channel>.mono{font-size:8px}.simulation-host,.simulation-worker{min-height:207px;padding:14px}.lab-board h2{font-size:17px}.lab-board p{font-size:10px}.lab-board .eyebrow{letter-spacing:.5px;font-size:8px}.worker-heading{flex-direction:column;align-items:start;gap:4px}.simulation-host>.sim-node-icon{margin-top:32px}.sim-node-icon{margin-block:13px 12px}.lab-controls{padding:15px}.lab-controls>.button{white-space:nowrap;flex:1;padding:8px 10px}.message-input{flex-basis:100%;order:-1;max-width:none}.lab-explanation{padding:14px 15px;font-size:11px}.lab-lower{grid-template-columns:1fr}.queue-panel{border-right:0;border-bottom:1px solid var(--line)}.message-queue{height:140px;padding-inline:15px}.panel-heading{padding:18px 15px 12px}.lab-counters{padding:13px 15px}.event-log{height:210px;padding-inline:15px}}