*{box-sizing:border-box}html{color-scheme:light}body{margin:0;background:#f6f6f7;color:#2c2d30;font:13px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer;min-height:36px;padding:0 12px;border:1px solid #dedee2;border-radius:7px;background:#fff;color:#333438;box-shadow:0 1px 2px #00000006;transition:transform 150ms ease-out}button:active{transform:scale(.98)}button:disabled{color:#b6b7be;cursor:default;background:transparent;box-shadow:none}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,pre:focus-visible{outline:2px solid #687caa;outline-offset:4px}a{color:inherit;text-decoration:none}h1,h2,p{margin:0}[hidden]{display:none!important}header{display:flex;justify-content:space-between;align-items:center;height:61px;border-bottom:1px solid #e4e4e7;padding:0 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solid #dce0e8;border-radius:5px;padding:3px 7px;font-size:9px}.upload{width:100%;max-width:310px;margin:45px auto 30px;background:#fff;border:1px solid #dedee4;border-radius:15px;box-shadow:0 12px 28px #242c3b0b,0 2px 5px #242c3b06,inset 0 1px 0 #fff;padding:24px}.upload-heading{text-align:center;padding-bottom:22px}.upload-symbol{display:grid;place-items:center;width:42px;height:42px;border:1px solid #e7e8ec;background:linear-gradient(#fff,#f4f4f6);border-radius:12px;margin:0 auto 16px;box-shadow:0 1px 2px #29313f05;color:#707886}.upload-symbol svg{width:24px;height:24px}.upload-heading h2{font-size:17px;font-weight:500;letter-spacing:-.45px}.upload-heading p{font-size:11px;color:#92959d;margin-top:5px}.file{display:flex;align-items:center;gap:10px;border:1px solid #e6e7eb;border-radius:9px;padding:10px;background:#fafafb}.file img{width:34px;height:34px;object-fit:contain;background:#eef0ed;border:1px solid #e4e5e6;border-radius:5px}.file 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#171d2b12;flex:1}.canvas-bottom{display:flex;justify-content:center;gap:30px;width:100%;font-size:9px;color:#969aa4;margin-top:auto}.canvas-bottom strong{display:block;font-size:10px;font-weight:400;color:#737b8b;margin-top:3px}.simulation-note{font-size:9px;color:#a0a5af;margin-top:15px}.map-panel{padding:26px 20px;border-left:1px solid #e7e7ea}.state-map{display:flex;flex-direction:column;gap:6px;margin-top:19px}.node{padding:9px 10px;border-radius:6px;font-size:10px;color:#9b9fa8;display:flex;justify-content:space-between;align-items:center;gap:7px;border:1px solid transparent}.node.active{color:#526888;background:#e9edf4;border-color:#d9e1ed}.node small{font-size:8px;color:#b0b4bc}.node.active small{color:#8d9eb9}.transition-readout{border-top:1px solid #e3e5e9;padding-top:17px;margin-top:22px}.transition-readout>span{display:block;font-size:9px;color:#a0a5af}.transition-readout code{display:block;font:10px/1.8 -apple-system,BlinkMacSystemFont,"Segoe 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0;font-size:10px;color:#7b879a}.log-row>span:first-child{font-size:9px;color:#b4bdca}.log-row>span:last-child{font-size:9px;color:#9aa6b8}.log-row[data-accepted=false]>span:last-child{color:#a58d69}.takeaway{display:grid;grid-template-columns:1fr 1.3fr;gap:55px;margin:36px 0}.takeaway h2{font-size:16px;font-weight:500;letter-spacing:-.3px}.takeaway p{font-size:11px;color:#8891a1;line-height:1.9;margin-top:10px;max-width:350px}.source{border:1px solid #dde3ec;border-radius:8px;background:#fafcfe;overflow:hidden}.source>div{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e4e9f0;padding:9px 14px;font-size:10px;color:#8996aa}.source button{min-height:27px;font-size:10px;box-shadow:none}.source pre{margin:0;padding:13px 16px;max-height:220px;overflow:auto;font:10px/1.8 ui-monospace,SFMono-Regular,monospace;color:#67788f;white-space:pre-wrap}.source p{padding:0 15px}footer{display:flex;justify-content:space-between;font-size:10px;color:#8b98ab;padding-top:18px;border-top:1px solid #dde4ee}.embedded body>header,.embedded .heading,.embedded .takeaway,.embedded main>footer{display:none}.embedded main{padding:22px;max-width:none}@media(hover:hover){button:not(:disabled):hover{filter:brightness(.97)}#event-buttons button:not(:disabled):hover{background:#eeeef1}a:hover{text-decoration:underline}}@media(max-width:950px){.studio-grid{grid-template-columns:155px minmax(0,1fr) 165px}.events{padding:22px 17px}.map-panel{padding:22px 15px}.canvas{padding:20px 16px}.upload{padding:20px}.canvas-bottom{gap:20px}}@media(max-width:760px){.studio-grid{grid-template-columns:155px minmax(0,1fr)}.map-panel{grid-column:1/-1;border-left:0;border-top:1px solid #e7e7ea;display:grid;grid-template-columns:1fr 1fr;gap:15px 25px;padding:20px}.map-panel h2{grid-column:1/-1}.state-map{margin-top:0;display:grid;grid-template-columns:1fr 1fr;gap:3px}.transition-readout{margin:0;padding:0;border:0}.rules{grid-column:1/-1;margin:0}.heading>span{max-width:240px;text-align:right;font-size:10px}.takeaway{gap:30px}.upload{margin-top:35px}}@media(max-width:520px){header{height:55px;padding:0 20px}main{padding:20px 16px}.heading{align-items:start}.heading h1{font-size:20px;white-space:nowrap}.heading>span{max-width:155px;font-size:9px}.studio-grid{display:flex;flex-direction:column}.canvas{order:0;padding:18px;min-height:475px}.events{order:1;border:0;border-top:1px solid #e7e7ea;padding:22px}.map-panel{order:2;display:block}.map-panel h2{margin-bottom:14px}.events .hint{margin-top:6px}#event-buttons{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;margin:10px -8px}#event-buttons button{font-size:11px;text-align:center;border:1px solid #e3e5ea;padding:7px 5px}.network{display:inline-flex;width:48%;padding-right:12px;vertical-align:top}.quiet{display:block;margin-top:13px}.try-this{margin-top:10px}.state-map{grid-template-columns:repeat(3,1fr);gap:4px}.node{padding:9px 8px;font-size:10px}.node small{display:none}.transition-readout{margin-top:18px}.rules{margin-top:20px}.trace{padding:18px}.trace-heading button{font-size:9px;padding:0 9px}.log-row{grid-template-columns:18px 72px 1fr;gap:7px;font-size:9px}.log-row>span:last-child{grid-column:3;font-size:8px}.takeaway{grid-template-columns:1fr;gap:20px;margin:28px 0}.embedded main{padding:12px}.upload{max-width:290px;margin:28px auto 22px}.canvas-bottom{gap:37px}.simulation-note{margin-top:12px}.source pre{font-size:10px}}@media(prefers-reduced-motion:reduce){button,.upload-progress>span{transition:none}button:active{transform:none}}
/* The upload is the first interaction; technical inspection is optional. */
.example-intro{font-size:14px;line-height:1.65;color:#626873;max-width:560px;margin:0 0 22px}.studio-grid{display:block;min-height:0}.canvas{padding:22px;min-height:0;background:#f5f6f8}.canvas-top{font-size:12px;color:#666c77}.canvas-top>span:last-child{font-size:12px;color:#526480}.upload{max-width:350px;margin:26px auto 20px;padding:26px;border-radius:12px;box-shadow:0 5px 15px #25324609}.upload-heading h2{font-size:20px}.upload-heading p,.upload-content p,.file small,.file>span:last-child{font-size:12px;color:#6d7480}.file strong{font-size:13px}.file img{width:40px;height:40px}.upload-content h2{font-size:14px;color:#414953}.upload-content p{min-height:0}.upload-actions button{font-size:13px;min-height:44px}.simulation-note{font-size:12px;color:#6b7380;margin:0 0 6px}.advanced-panel{border:1px solid #dedee3;border-radius:10px;background:#fff;margin-top:18px;overflow:hidden}.advanced-panel>summary{display:flex;align-items:center;gap:16px;min-height:54px;padding:16px 22px;list-style:none;cursor:pointer;font-size:13px}.advanced-panel>summary span{font-size:12px;color:#697180}.advanced-panel>summary:after{content:'+';margin-left:auto}.advanced-panel[open]>summary:after{content:'−'}.advanced-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid #e3e5e9}.events{border:0;padding:24px}.map-panel{padding:24px;border-left:1px solid #e3e5e9;display:block}.events h2,.map-panel h2{font-size:14px}.hint,.network,.quiet,#guard,.try-this summary,.try-this p,.transition-readout>span,.transition-readout code,.rules summary,.rules p,.trace-heading button,.takeaway p,.source>div,footer{font-size:12px;color:#636c7b}#event-buttons{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:12px 0 18px}#event-buttons button{font-size:12px;text-align:center;min-height:44px;padding:6px;border:1px solid #e1e5eb}.network{min-height:44px;margin:0}.quiet{min-height:44px}.network input{width:18px;height:18px}.try-this summary,.rules summary{min-height:44px;padding:12px 0}.node{font-size:12px;color:#606b7d}.node small,.node.active small{font-size:11px;color:#727e90}.state-map{display:grid;grid-template-columns:1fr 1fr;gap:7px}.transition-readout{margin-top:18px}.canvas-bottom{font-size:12px;color:#697386;margin-top:22px;justify-content:start;gap:30px}.canvas-bottom strong{font-size:13px;color:#414c60}.trace-heading h2{font-size:14px}.trace-heading button,.source button{min-height:44px;font-size:12px}.log-row{font-size:12px;color:#59697f;grid-template-columns:30px 85px 1fr auto;gap:10px}.log-row>span:first-child,.log-row>span:last-child{font-size:11px;color:#6d7c90}#log:empty:before{font-size:12px;color:#697687}.takeaway{margin:0;padding:24px;gap:25px}.takeaway h2{font-size:17px}.takeaway p{margin-top:10px}.source pre{font-size:12px;color:#475a74}.source>div{padding:9px 12px}header{font-size:13px}header a{display:inline-flex;align-items:center;min-height:44px}.heading>span{display:none}.embedded .takeaway{display:grid}.embedded main{padding:22px}.primary:disabled{color:#79818f;background:#eef0f4;border-color:#e0e3e9}button:not(:disabled):active{transform:translateY(1px)}
@media(max-width:600px){.advanced-grid{display:block}.events,.map-panel{padding:20px}.map-panel{border-left:0;border-top:1px solid #e3e5e9}.network{display:flex;width:100%}.canvas{padding:18px}.upload{margin:18px auto;max-width:350px;padding:22px}.advanced-panel>summary{padding:15px 18px;gap:10px}.advanced-panel>summary span{font-size:12px}.takeaway,.embedded .takeaway{grid-template-columns:1fr;padding:20px}.log-row{grid-template-columns:25px 70px 1fr}.log-row>span:last-child{grid-column:3}.trace{padding:20px}.trace-heading{gap:8px}.trace-heading button{padding:0 10px}.example-intro{font-size:13px}.embedded main{padding:16px}.canvas-bottom{gap:30px}.file{gap:8px}.file strong{font-size:12px}.simulation-note{font-size:12px}}
@media(prefers-reduced-motion:reduce){button:not(:disabled):active{transform:none}}
.studio-grid{display:grid;grid-template-columns:minmax(0,1fr) 260px}.map-panel{padding:22px;border-left:1px solid #e3e5e9;background:#fff}.map-panel .events{padding:0;margin-top:18px}.map-panel .hint{margin-top:0}.state-map{margin-top:14px}.node{padding:8px;font-size:12px}.node small{display:none}.canvas-bottom{display:none}.transition-readout{margin-top:14px;padding-top:12px}.transition-readout>span{display:none}.transition-readout code{margin:0}.map-panel #event-buttons{grid-template-columns:repeat(3,1fr);gap:4px;margin:8px 0}.map-panel #event-buttons button{font-size:12px;min-height:36px;padding:5px}.map-panel .network{min-height:36px;font-size:12px}.map-panel .quiet{margin-top:8px;font-size:12px;min-height:36px}.map-panel #guard{min-height:0;margin-top:5px;font-size:12px}.advanced-panel>.rules,.advanced-panel>.try-this{margin:0;padding:0 24px 14px;border:0}.upload{margin:24px auto 20px}.canvas{justify-content:center;min-height:490px}.canvas-top{margin-bottom:auto}.simulation-note{margin-top:auto}.example-intro{margin-bottom:16px}
@media(max-width:700px){.studio-grid{grid-template-columns:1fr}.canvas{min-height:0;padding:16px}.upload{margin:14px auto 16px;padding:20px;max-width:360px}.upload-symbol{display:none}.upload-heading{padding-bottom:16px}.upload-heading h2{font-size:18px}.map-panel{padding:18px;border-left:0;border-top:1px solid #e3e5e9}.state-map{grid-template-columns:repeat(3,1fr)}.map-panel #event-buttons{grid-template-columns:repeat(4,1fr)}.map-panel #event-buttons button{min-height:44px}.map-panel .network{display:inline-flex;width:49%;min-height:44px}.map-panel .quiet{min-height:44px}.simulation-note{margin:0;font-size:12px}.upload-content{padding-top:14px}}
.studio{border-color:#d5dbe4;background:linear-gradient(#fff,#f7f9fb);box-shadow:inset 0 1px 0 #fff,0 1px 2px #26324408,0 18px 36px -28px #27344945}.canvas{background:radial-gradient(ellipse at 20% 0%,#fff,#f1f4f8 70%,#eaf0f7)}.upload{background:linear-gradient(145deg,#fff 35%,#f9fafc);border-color:#fff;border-radius:18px;box-shadow:inset 0 1px 0 #fff,inset 0 -1px 0 #e2e6ed,0 0 0 1px #cad2de80,0 3px 5px #26344808,0 18px 34px -20px #283e6340}.upload-symbol{background:linear-gradient(135deg,#fff,#eef1f7);border-color:#fdfefe;box-shadow:inset 0 1px 0 #fff,0 0 0 1px #dce1eaaa,0 3px 5px #2634480b}.file{background:linear-gradient(#f1f4f8,#f9fbfd);border-color:#e0e6ef;box-shadow:inset 0 1px 3px #27384c07,0 1px 0 #fff}.primary{background:linear-gradient(#485160,#303844);border-color:#303947;box-shadow:inset 0 1px 0 #ffffff38,inset 0 -1px 0 #1d2634,0 2px 3px #26344818}.upload-actions button:not(.primary){background:linear-gradient(#fff,#eef1f6);border-color:#d4dae3;box-shadow:inset 0 1px 0 #fff,0 1px 2px #2634480d}.node.active{background:linear-gradient(#fff,#edf1f7);border-color:#d8e0eb;box-shadow:inset 0 1px 0 #fff,0 2px 3px #30456a0a}.map-panel{background:linear-gradient(100deg,#f9fafc,#fff 35%)}

.studio-grid{grid-template-rows:auto 1fr}.canvas{grid-row:1 / span 2}.map-panel{grid-column:2;grid-row:1;border-bottom:0;padding-bottom:0}.studio-grid>.events{grid-column:2;grid-row:2;padding:0 22px 22px;border-left:1px solid var(--line);background:#fff}#event-buttons button,.network,#stale{min-height:44px}.embedded main{max-width:1180px;margin-inline:auto}
@media(max-width:700px){.studio-grid{grid-template-rows:auto auto auto}.map-panel{grid-column:1;grid-row:1;border-left:0;padding:14px 18px}.map-panel h2{margin-bottom:10px}.state-map{gap:4px}.state-map>div{min-height:30px}.transition-readout{margin-top:10px;padding-top:10px}.canvas{grid-column:1;grid-row:2;min-height:0;border-top:1px solid var(--line)}.studio-grid>.events{grid-column:1;grid-row:3;border-left:0;padding:16px 18px;border-top:1px solid var(--line)}.upload-heading{display:none}.canvas .upload{margin:6px auto 12px;padding:18px}.canvas-top{padding:12px 18px}.simulation-note{margin:0 18px 16px}.upload-content{padding-top:14px}.example-intro{margin-bottom:16px}.network{min-height:44px}}