.delivery-lab{margin-block:44px 64px;color:var(--ink);color-scheme:light}
.lab-scenario{max-width:72ch;margin-bottom:38px}
.lab-scenario h2{font-size:clamp(27px,3vw,42px);line-height:1.3}
.lab-scenario>p{margin-top:18px;line-height:1.85}
.lab-scenario .lab-disclosure{font-size:14px;color:var(--ink-muted);padding-top:16px;border-top:1px solid var(--paper-line)}
.lab-workspace{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:start}
.lab-decisions{min-width:0}
.lab-progress{display:flex;gap:24px;list-style:none;padding:0;margin:0 0 24px;justify-content:space-between;border-bottom:1px solid var(--paper-line)}
.lab-progress li{display:flex;gap:8px;align-items:center;padding-bottom:14px;color:var(--ink-muted);font-size:14px;line-height:1.4;border-bottom:2px solid transparent}
.lab-progress li[aria-current]{color:var(--ink);border-bottom-color:var(--accent-dark);font-weight:700}
.lab-progress li.is-complete{color:var(--ink)}
.lab-progress li>span{font-variant-numeric:tabular-nums}
.lab-step-count{font-size:13px;color:var(--ink-muted);margin-bottom:14px}
.lab-step{border:0;margin:0;padding:0;min-width:0}
.lab-step legend{font-size:clamp(24px,2.5vw,34px);font-weight:650;line-height:1.35;letter-spacing:-.025em;padding:0;max-width:100%}
.lab-step-intro{font-size:16px;color:var(--ink-muted);line-height:1.8;margin:16px 0 24px}
.lab-choice{display:flex;align-items:flex-start;gap:14px;padding:20px 0;border-top:1px solid var(--paper-line);cursor:pointer;min-height:64px}
.lab-choice:last-of-type{border-bottom:1px solid var(--paper-line)}
.lab-choice input{width:20px;height:20px;flex:0 0 20px;accent-color:var(--accent-dark);margin:4px 0 0;cursor:pointer}
.lab-choice>span{display:block;min-width:0}
.lab-choice strong{font-size:17px;line-height:1.6;display:block;font-weight:650}
.lab-choice-detail{display:block;color:var(--ink-muted);font-size:14px;line-height:1.85;margin-top:5px}
.lab-choice:has(input:checked) strong{color:var(--accent-dark)}
.lab-choice:hover strong{text-decoration:underline;text-underline-offset:.2em}
.lab-feedback{font-size:15px;line-height:1.85;min-height:100px;margin-block:22px 20px}
.lab-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.lab-actions .button{min-height:48px;font-size:15px;padding:12px 22px;max-width:100%}
.lab-secondary,.lab-reset{border:0;background:transparent;color:var(--ink);min-height:44px;text-decoration:underline;padding:10px 2px;font-size:15px;text-underline-offset:.25em}
.lab-reset{font-size:13px;color:var(--ink-muted);margin-top:12px}
.lab-error{color:var(--accent-dark);font-weight:650;margin-bottom:18px}
.lab-trace{background:var(--ink);color:var(--paper);padding:32px;min-width:0}
.lab-trace>h3{font-size:clamp(25px,2.5vw,34px);line-height:1.3}
.lab-trace-intro{font-size:15px;line-height:1.8;color:var(--muted);margin-top:14px}
.lab-pipeline{list-style:none;padding:0;margin:32px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 22px}
.lab-pipeline li{border-top:1px solid var(--line);position:relative;padding-top:14px;min-width:0}
.lab-pipeline li::before{content:"";position:absolute;inset-block-start:-1px;inset-inline:0;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left}
[dir=rtl] .lab-pipeline li::before{transform-origin:right}
.lab-pipeline li[data-state=active]::before{animation:lab-trace-step .36s cubic-bezier(.16,1,.3,1) both}
.lab-pipeline li:not([data-state=waiting]):not([data-state=active])::before{transform:scaleX(1)}
.lab-node-index{font-size:12px;font-variant-numeric:tabular-nums;color:var(--muted);display:block;margin-bottom:8px}
.lab-pipeline strong{font-size:19px;line-height:1.4;display:block;font-weight:600}
.lab-pipeline [data-lab-node-status]{display:block;font-size:13px;color:var(--muted);line-height:1.75;margin-top:9px}
.lab-pipeline li[data-state=failed] [data-lab-node-status],.lab-pipeline li[data-state=blocked] [data-lab-node-status],.lab-pipeline li[data-state=warning] [data-lab-node-status]{color:#ffa17f}
.lab-run-status{color:var(--muted);font-size:14px;line-height:1.75;border-top:1px solid var(--line);padding-top:20px;margin-top:28px;min-height:65px}
.lab-result{border-top:1px solid var(--line);padding-top:28px;margin-top:20px}
.lab-result h3{font-size:27px;line-height:1.35}
.lab-result>p{font-size:15px;line-height:1.9;color:#d9dccf;margin-top:16px}
.lab-evidence{margin:24px 0;font-size:13px;line-height:1.8}
.lab-evidence>div{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:18px;padding-block:12px;border-bottom:1px solid var(--line)}
.lab-evidence dt{color:var(--muted)}
.lab-evidence dd{margin:0;font-weight:500}
.lab-evidence code{direction:ltr;unicode-bidi:isolate;font-size:13px}
.lab-download{display:inline-block;border:1px solid var(--paper-line);padding:12px 16px;min-height:48px;color:var(--paper);background:transparent;border-radius:5px;font-size:14px;text-align:start;line-height:1.6}
.lab-download:hover{background:var(--paper);color:var(--ink)}
.lab-monox{max-width:78ch;margin-top:56px;padding-top:32px;border-top:1px solid var(--paper-line)}
.lab-monox h3{font-size:clamp(24px,2.8vw,34px);line-height:1.4}
.lab-monox p{font-size:16px;color:var(--ink-muted);line-height:1.9;margin-top:16px}
.lab-source-links{display:flex;gap:20px 32px;flex-wrap:wrap;margin-top:22px}
.lab-source-links a{color:var(--accent-dark);text-decoration:underline}
.lab-fallback{max-width:72ch;padding-block:24px;border-block:1px solid var(--paper-line)}
.lab-fallback h3{font-size:25px}.lab-fallback p,.lab-fallback li{line-height:1.9;margin-top:12px}
@keyframes lab-trace-step{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@media(min-width:1250px){.lab-workspace{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:56px}}
@media(max-width:850px){.lab-workspace{grid-template-columns:1fr;gap:32px}.lab-feedback{min-height:0}.lab-trace{padding:28px}.lab-pipeline{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.lab-pipeline strong{font-size:17px}.lab-pipeline [data-lab-node-status]{font-size:12px}}
@media(max-width:540px){.delivery-lab{margin-top:24px}.lab-scenario{margin-bottom:24px}.lab-scenario>p{margin-top:12px}.lab-scenario .lab-disclosure{padding-top:12px}.lab-progress{margin-bottom:18px}.lab-step-intro{margin:12px 0 18px}.lab-step[data-lab-key=context] .lab-step-intro{display:none}.lab-step[data-lab-key=context] legend{margin-bottom:18px}.lab-progress{gap:12px}.lab-progress li{font-size:13px;gap:6px}.lab-trace{padding:24px 20px}.lab-pipeline{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 18px}.lab-choice{gap:12px}.lab-choice strong{font-size:16px}.lab-evidence>div{gap:12px}.lab-actions{gap:14px}.lab-monox{margin-top:40px}.lab-source-links{flex-direction:column;align-items:flex-start}}
@media(prefers-reduced-motion:reduce){.lab-pipeline li::before{animation:none!important}.delivery-lab *{scroll-behavior:auto!important}}