.lab-page{padding-top:68px;padding-bottom:64px}
.lab-intro{padding-bottom:60px}
.lab-intro h1{font-size:clamp(64px,7.3vw,112px);font-weight:750;letter-spacing:-.065em;line-height:.98;margin-top:26px}
.lab-deck{font-size:25px;letter-spacing:-.025em;line-height:1.5;max-width:650px;margin-top:32px}
.lab-jump{display:flex;gap:16px 36px;flex-wrap:wrap;margin-top:32px;font:15px/1.6 var(--mono)}
.lab-jump a{min-height:44px;display:inline-flex;align-items:center}
.lab-local{font:13px/1.7 var(--mono);color:var(--muted);margin-top:14px}
.lab-notice{padding:24px;border:1px solid var(--moss);font-size:17px;line-height:1.7;margin-bottom:40px}
.lab-experiment{display:grid;grid-template-columns:minmax(240px,.8fr) minmax(0,1.65fr);gap:clamp(32px,6vw,90px);padding:54px 0 64px;border-top:1px solid var(--line);scroll-margin-top:28px}
.lab-experiment-intro h2{font-size:clamp(37px,3.8vw,56px);line-height:1.05;letter-spacing:-.055em;font-weight:650;margin-top:22px}
.lab-experiment-intro>p:not(.section-label){font-size:19px;line-height:1.65;letter-spacing:-.015em;margin-top:24px;max-width:420px}
.lab-experiment-intro>p.lab-aside{font:14px/1.7 var(--mono);color:var(--muted);margin-top:22px}
.timing-panel{border:1px solid var(--line);padding:32px;background:#e9eadd;min-width:0}
.timing-target{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;font:12px/1.5 var(--mono);letter-spacing:.03em;color:var(--moss)}
.timing-target span{color:var(--ink)}
.timing-display{font:500 clamp(65px,7.2vw,110px)/1.25 var(--mono);letter-spacing:-.07em;margin-top:30px;font-variant-numeric:tabular-nums}
.timing-display span{font-size:28px;letter-spacing:-.04em;margin-left:10px;color:var(--moss)}
.timing-panel.is-running .timing-display{color:var(--moss)}
.timing-status{font-size:18px;line-height:1.6;min-height:58px;max-width:570px;margin-top:10px}
.lab-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px}
.lab-button{border:1px solid var(--ink);border-radius:0;min-height:48px;padding:12px 18px;background:var(--ink);color:var(--paper);font:14px/1.5 var(--mono);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:22px}
.lab-button:hover{background:var(--moss);border-color:var(--moss);color:var(--paper)}
.lab-button-secondary{background:transparent;color:var(--ink);border-color:#a9ad9e}
.lab-button-secondary:hover{background:#dfe2d3;color:var(--ink);border-color:var(--moss)}
.lab-button:disabled{opacity:.5;cursor:default}
.lab-page button:focus-visible,.lab-page textarea:focus-visible,.lab-page summary:focus-visible{outline:2px solid var(--moss);outline-offset:4px}
.lab-help{font:12px/1.8 var(--mono);color:var(--muted);margin-top:20px;max-width:720px}
.lab-page kbd{font:inherit;border:1px solid #adb29f;padding:1px 4px;border-radius:2px}
.timing-session{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;padding-top:24px;margin-top:28px;border-top:1px solid #c5c9b8;font:12px/1.7 var(--mono);color:var(--muted)}
.timing-session strong{display:block;margin-top:4px;font-size:18px;font-weight:500;color:var(--ink)}
.timing-history{padding:0;margin:18px 0 0;list-style:none;font:12px/1.6 var(--mono)}
.timing-history:empty{display:none}
.timing-history li{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 14px;padding:9px 0;border-top:1px solid #cdd0c1}
.timing-history li span:last-child{color:var(--moss)}
.lab-json{grid-template-columns:1fr}
.lab-json .lab-experiment-intro{display:grid;grid-template-columns:1fr 1fr;gap:0 56px}
.lab-json .lab-experiment-intro .section-label{grid-column:1}
.lab-json .lab-experiment-intro h2{grid-column:1;grid-row:2 / span 2}
.lab-json .lab-experiment-intro>p:not(.section-label){grid-column:2;margin-top:0;max-width:650px}
.lab-json .lab-experiment-intro>p.lab-aside{margin-top:14px}
.json-workspace{min-width:0;margin-top:-24px}
.json-inputs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.json-input-group{min-width:0}
.json-input-group label{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px;font-size:22px;letter-spacing:-.04em;font-weight:550;margin-bottom:12px}
.json-input-group label span{font:12px/1.6 var(--mono);color:var(--muted);letter-spacing:0}
.json-input-group textarea{display:block;width:100%;resize:vertical;min-height:260px;max-height:900px;border:1px solid #aeb2a4;background:#f8f7f2;border-radius:0;padding:20px;color:var(--ink);font:14px/1.8 var(--mono);tab-size:2;overflow-wrap:normal;white-space:pre;overflow:auto}
.json-input-group textarea::placeholder{color:#777d6e}
.json-input-group textarea[aria-invalid="true"]{border-color:#9b4134}
.json-input-group textarea:disabled{opacity:.6}
.json-error{font:13px/1.7 var(--mono);color:#953b2f;margin-top:10px;overflow-wrap:anywhere}
.json-error:empty{margin:0}
.json-details{font:13px/1.8 var(--mono);margin-top:16px;color:var(--muted);max-width:880px}
.json-details summary{cursor:pointer;width:fit-content;min-height:36px;align-content:center;color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.json-details p{margin-top:12px}
.json-results{margin-top:36px;border-top:1px solid var(--line);padding-top:30px}
.json-results[hidden]{display:none}
.json-results h3{font-size:28px;line-height:1.25;letter-spacing:-.04em;font-weight:550;scroll-margin-top:36px}
.json-results h3:focus{outline:none}
.json-results h3:focus-visible{outline:2px solid var(--moss);outline-offset:6px}
.json-result-note{font:13px/1.8 var(--mono);color:var(--muted);margin-top:10px}
.json-diff-list{list-style:none;padding:0;margin:24px 0 0}
.json-diff-list:empty{display:none}
.json-diff{padding:20px 0;border-top:1px solid var(--line)}
.json-diff-heading{display:flex;align-items:flex-start;gap:12px 20px;flex-wrap:wrap}
.json-diff-kind{font:11px/1.7 var(--mono);text-transform:uppercase;letter-spacing:.02em;padding:3px 8px;border:1px solid #a7b097;color:var(--moss);white-space:nowrap}
.json-diff[data-kind="removed"] .json-diff-kind{color:#8c4033;border-color:#c9aba4}
.json-diff[data-kind="type"] .json-diff-kind{color:#815615;border-color:#c9b791}
.json-diff-heading code{font:14px/1.8 var(--mono);overflow-wrap:anywhere;word-break:break-word;min-width:0;padding-top:2px}
.json-diff-values{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:16px 0 0}
.json-diff-values>div{min-width:0}
.json-diff-values dt{font:11px/1.6 var(--mono);text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.json-diff-values dd{margin:0;padding:12px 14px;background:#e8e9df;border:1px solid #d8dbcd;min-height:46px;max-height:220px;overflow:auto}
.json-diff-values pre{font:13px/1.7 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;margin:0}
.json-diff-values em{font:12px/1.7 var(--mono);color:var(--muted)}
.lab-next{border-top:1px solid var(--line);padding-top:30px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;font:14px/1.7 var(--mono)}
.lab-next p{color:var(--muted)}
@media(max-width:900px){.lab-experiment{grid-template-columns:1fr;gap:30px}.lab-experiment-intro>p:not(.section-label){max-width:640px}.lab-json .lab-experiment-intro{display:block}.lab-json .lab-experiment-intro>p:not(.section-label){margin-top:24px}.lab-json .lab-experiment-intro>p.lab-aside{margin-top:16px}.json-workspace{margin-top:0}.timing-display{font-size:90px}}
@media(max-width:600px){.lab-page{padding-top:44px;padding-bottom:40px}.lab-intro{padding-bottom:38px}.lab-intro h1{font-size:clamp(48px,12vw,70px);margin-top:22px}.lab-deck{font-size:20px;line-height:1.5;margin-top:26px}.lab-jump{gap:4px 24px;font-size:12px;margin-top:24px}.lab-local{font-size:11px}.lab-experiment{padding-top:34px;padding-bottom:40px}.lab-experiment-intro h2{font-size:40px;margin-top:18px}.lab-experiment-intro>p:not(.section-label){font-size:17px;margin-top:18px}.lab-experiment-intro>p.lab-aside{font-size:12px;margin-top:16px}.timing-panel{padding:22px}.timing-target{font-size:10px}.timing-display{font-size:clamp(55px,15vw,90px);margin-top:24px}.timing-status{font-size:16px;min-height:72px}.lab-button{font-size:12px;padding:11px 14px;gap:14px}.lab-help{font-size:11px}.timing-session{font-size:11px}.timing-session strong{font-size:16px}.json-inputs{grid-template-columns:1fr;gap:26px}.json-input-group textarea{padding:14px;font-size:12px;min-height:220px;max-height:550px}.json-input-group label{font-size:20px}.json-input-group label span{font-size:11px}.json-diff-values{grid-template-columns:1fr;gap:12px}.json-results h3{font-size:25px}.json-diff-heading code{font-size:12px}.lab-next{font-size:12px}}