.playground{padding:32px 0 84px;scroll-margin-top:28px}.playground-heading{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:28px}.playground-heading .eyebrow{color:var(--accent);margin-bottom:12px}.playground-heading h2{font-size:34px}.playground-heading>p{max-width:250px;font-size:13px;color:var(--muted)}.lab-tabs{display:flex;gap:6px;margin-bottom:16px;width:fit-content;padding:5px;border:1px solid #dbded7;background:#eaece6;border-radius:15px}.lab-tabs button{display:flex;align-items:center;gap:9px;padding:10px 18px;min-height:44px;border-radius:10px;font-size:12px;color:#60665d;transition:background .2s,box-shadow .2s}.lab-tabs button[aria-selected=true]{background:#fff;color:#292f29;box-shadow:0 1px 4px #23322212}.tab-symbol{font-size:21px;font-weight:400;line-height:1}.lab-panel{display:grid;grid-template-columns:.8fr 1.2fr;min-height:540px;overflow:hidden;border:1px solid #d9ddd5;border-radius:25px;background:#fbfcf9;box-shadow:0 20px 60px -35px #31403130}.lab-panel[hidden]{display:none}.lab-source{padding:38px;display:flex;flex-direction:column;border-right:1px solid #e0e4da;background:linear-gradient(140deg,#fbfcf8,#f0f2eb)}.source-label{font-size:9px;letter-spacing:1.4px;color:#727b6d;line-height:1.7}.lab-source blockquote{font-family:Georgia,"Times New Roman","Microsoft YaHei",serif;font-size:24px;line-height:1.65;letter-spacing:-.35px;margin:28px 0 20px;transition:background .2s}.source-explanation{color:#687060;font-size:13px;line-height:1.9}.shape-picker{display:flex;gap:7px;flex-wrap:wrap;margin-top:24px}.shape-picker button{font-size:11px;padding:8px 11px;min-height:38px;border:1px solid #d8ded1;border-radius:10px;background:#ffffff60}.shape-picker button[aria-pressed=true]{border-color:#859780;background:#e1e8da;color:#2a432e}.lab-observation{margin-top:auto;padding-top:32px}.lab-observation>span{font-size:9px;letter-spacing:1.5px;color:#6c7f63}.lab-observation>p{font-size:12px;line-height:1.8;color:#71796b;max-width:300px;margin-top:8px}.space-stage{position:relative;min-width:0;background:radial-gradient(ellipse at 52% 36%,#fff 0%,#f3f5ef 65%,#eef1e8 100%);padding:21px 26px 26px}.stage-heading{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#64705f;gap:16px}.quiet-button{font-size:11px;min-height:36px;padding:6px 10px;border-radius:9px}.quiet-button:hover{background:#dde4d466}#solid-canvas{width:100%;height:325px;display:block;touch-action:none;cursor:grab;border-radius:16px}#solid-canvas:active{cursor:grabbing}#solid-canvas:focus-visible{outline:2px solid var(--sage);outline-offset:-3px}.orbit-hint{text-align:center;color:#6a7664;font-size:10px;margin-top:-9px}.solid-result{min-height:54px;display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;margin:12px 0}.solid-result output{font:19px/1.5 Georgia,serif;color:#3b5540;overflow-wrap:anywhere;text-align:center}.solid-result>span{font-size:10px;color:#76816e;white-space:nowrap}.stage-actions{display:flex;align-items:center;justify-content:center;gap:10px}.lab-primary,.lab-secondary{border-radius:12px;min-height:44px;padding:10px 17px;font-size:12px;transition:background .2s,transform .2s}.lab-primary{background:#344f3c;color:#fff;box-shadow:inset 0 1px #ffffff22,0 2px 4px #16352515}.lab-primary:hover{background:#42654c}.lab-primary:disabled{opacity:.65;cursor:wait}.lab-secondary{background:#ffffff99;border:1px solid #d8dfd1;color:#465540}.lab-secondary:hover{background:#fff}.lab-footnote{max-width:690px;margin:18px auto 0;text-align:center;color:var(--muted);font-size:11px}.order-stage{padding:30px;display:flex;flex-direction:column;justify-content:center;min-width:0;background:linear-gradient(135deg,#f7f8fb,#f0f3f7)}.order-picker{display:grid;grid-template-columns:1fr 1fr;gap:12px}.order-picker button{display:flex;align-items:center;gap:12px;border:1px solid #dbe1e6;border-radius:14px;padding:12px 16px;background:#ffffff66;text-align:left;min-height:64px}.order-picker button[aria-pressed=true]{background:#fff;border-color:#819ab4;box-shadow:0 2px 5px #3049660b}.order-picker strong{font:25px Georgia,serif;color:#4e6883}.order-picker span{font-size:11px;color:#6b7786}#order-svg{width:100%;height:auto;max-height:310px;overflow:visible}#order-result{display:block;text-align:center;font:25px Georgia,serif;color:#394f65}.order-takeaway{text-align:center;font-size:11px;color:#707c89;margin-top:12px}.notes-stage{padding:27px;min-width:0;background:#f0efeb;display:flex;flex-direction:column;align-items:start;gap:18px}.note-view-picker{display:flex;gap:4px;padding:4px;border:1px solid #dbdcd5;border-radius:10px}.note-view-picker button{font-size:11px;padding:6px 12px;min-height:34px;border-radius:6px}.note-view-picker button[aria-pressed=true]{background:#fff;box-shadow:0 1px 3px #30301f10}.sample-note{width:100%;background:#fffdf8;border:1px solid #e3dfd4;border-radius:3px 15px 15px 3px;padding:27px 29px;box-shadow:0 4px 10px #33352506}.sample-note h3{font:23px/1.4 Georgia,"Microsoft YaHei",serif;margin:18px 0}.sample-note>p:not(.note-source-line){font-size:12px;color:#777468;line-height:1.9}.note-source-line{font-size:10px;color:#8e897b}.note-formula{font:23px/1.7 Georgia,serif;text-align:center;padding:16px 0;color:#534f40}.note-back{font-size:11px;color:#8d6149;margin:10px -8px 0;padding:8px}.notes-stage>pre{width:100%;white-space:pre-wrap;overflow-wrap:anywhere;overflow:auto;margin:0;max-height:360px;padding:20px;border:1px solid #e3dfd4;border-radius:12px;background:#fffdf8;font:11px/1.8 ui-monospace,monospace}.notes-stage>pre[hidden],.sample-note[hidden]{display:none}.notes-stage>.lab-secondary{margin-top:auto}#note-source.source-flash{background:#dde7cd;border-radius:8px;outline:8px solid #dde7cd}.quick-start{padding:44px 0 56px;border-top:1px solid var(--line)}.quick-start h2{font-size:24px}.setup-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:25px;list-style:none;padding:0;counter-reset:setup}.setup-steps li{counter-increment:setup;display:grid;grid-template-columns:30px 1fr;gap:12px;align-items:start}.setup-steps li:before{content:counter(setup);display:grid;place-items:center;width:28px;height:28px;border:1px solid #cdd4c5;border-radius:50%;font-size:11px;color:#64785a}.setup-steps strong{display:block;font-size:13px;font-weight:500;margin-bottom:5px}.setup-steps p{font-size:12px;color:var(--muted)}.download-match{font-size:12px;color:#5d6e56;margin-top:-10px;min-height:22px}.platform-card.recommended{border-color:#8e9f82;box-shadow:0 0 0 2px #8e9f8214}.platform-card.recommended h3:after{content:'✓';margin-left:9px;color:#748767;font-size:16px}.product{padding-top:0}.product-frame{box-shadow:0 20px 55px -35px #35393060}
@media(max-width:950px){.lab-source{padding:28px}.lab-source blockquote{font-size:21px}.space-stage{padding:18px}.order-stage,.notes-stage{padding:22px}.site-header nav{gap:20px}.playground-heading>p{max-width:210px}.order-picker button{padding:10px;gap:8px}}
@media(max-width:700px){.playground{padding:20px 0 58px}.playground-heading{display:block}.playground-heading>p{max-width:none;margin-top:12px}.playground-heading h2{font-size:28px}.lab-panel{grid-template-columns:1fr}.lab-source{border-right:0;border-bottom:1px solid #e0e4da;padding:24px}.lab-source blockquote{font-size:21px;margin:17px 0 12px}.lab-observation{padding-top:20px}.lab-source .lab-observation>p{max-width:none}.lab-tabs{width:100%;gap:2px}.lab-tabs button{flex:1;justify-content:center;padding:9px 6px;gap:6px;font-size:10px}.tab-symbol{font-size:18px}.shape-picker{margin-top:18px}#solid-canvas{height:290px}.space-stage{padding:16px 18px 24px}.stage-actions{flex-wrap:wrap}.order-stage{padding:24px 18px}.notes-stage{padding:22px 18px}.sample-note{padding:22px}.setup-steps{grid-template-columns:1fr;gap:22px}.quick-start{padding:30px 0 35px}.site-header nav>a[href='#experience']{display:none}}
@media(prefers-reduced-motion:reduce){.token{transition:none}.source-flash{animation:none}}