/* The lab is part of the site, not an embedded service. All visuals are native. */
html:has(.platform-lab),html:has(.platform-home){scroll-behavior:auto}
.platform-home,.platform-lab{--lab-soft:color-mix(in srgb,var(--brand) 8%,var(--card));--lab-focus:color-mix(in srgb,var(--brand) 55%,var(--line))}
.platform-home [hidden],.platform-lab [hidden]{display:none!important}
.platform-hero{padding:72px 0 68px;background:radial-gradient(ellipse at 80% 25%,var(--lab-soft),transparent 60%)}
.hero-split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.hero-copy h1{font-size:clamp(2.5rem,4.3vw,4rem);line-height:1.07;letter-spacing:-.055em;margin:15px 0 24px}.hero-copy h1 span,.lab-intro h1 span{color:var(--brand)}
.hero-copy>p:not(.eyebrow){color:var(--muted);font-size:1.07rem;max-width:540px}.hero-copy .hero-footnote{font-size:.8rem!important;margin-top:20px}.platform-home .button{gap:12px}.platform-home .button.primary{color:var(--paper)}
.journey-demo,.cache-demo,.hash-demo{padding:28px;background:var(--card);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);min-width:0}
.demo-topline{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:.75rem;color:var(--muted);margin-bottom:28px}.lab-tag{color:var(--brand);font-weight:700}.demo-topline>span:last-child{flex-shrink:0;font-variant-numeric:tabular-nums}
.mini-browser{display:flex;align-items:center;gap:12px;padding:12px;border-radius:12px;background:var(--paper);border:1px solid var(--line);font-size:.75rem;color:var(--muted)}.browser-dots{display:flex;gap:4px}.browser-dots i{width:5px;height:5px;border-radius:50%;background:var(--muted);opacity:.45}.address-check{margin-left:auto;color:var(--brand);font-size:.66rem}
.journey-scene{display:grid;grid-template-columns:1fr 52px 1fr;gap:8px;align-items:center;min-height:190px;margin:15px 0 5px}.journey-device{text-align:center;position:relative}.screen-content{aspect-ratio:1.6;border:2px solid var(--line);border-radius:12px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:9px;background:var(--paper);box-shadow:0 8px 0 -4px var(--line)}.screen-word{font-weight:800;letter-spacing:-.04em;opacity:.2;transition:opacity .4s}.screen-line{width:65%;height:5px;border-radius:4px;background:var(--line);transition:background .4s}.screen-line.short{width:40%}.device-label{display:block;margin-top:16px;font-size:.75rem;color:var(--muted)}.journey-wire{height:2px;background:var(--line);position:relative}.journey-packet{position:absolute;width:10px;height:10px;top:-4px;left:0;border-radius:50%;background:var(--brand);transition:left .5s ease}.journey-service{text-align:center;display:grid;justify-items:center;gap:8px}.service-symbol{display:grid;place-items:center;width:60px;height:60px;border-radius:20px;color:var(--brand);background:var(--lab-soft);font-size:1.7rem;transition:transform .35s}.journey-service strong{font-size:.8rem;line-height:1.3}.journey-service small{font-size:.68rem;color:var(--muted);line-height:1.4}
.journey-demo[data-step="1"] .journey-packet{left:30%}.journey-demo[data-step="2"] .journey-packet{left:65%}.journey-demo[data-step="3"] .journey-packet{left:calc(100% - 10px)}.journey-demo[data-step="3"] .screen-word{opacity:1}.journey-demo[data-step="3"] .screen-line{background:var(--lab-focus)}.journey-demo[data-step="2"] .service-symbol{transform:scale(1.08)}
.journey-story{min-height:164px}.lab-step{font-size:.72rem;color:var(--brand);font-weight:750;letter-spacing:.03em}.journey-story h3{font-size:1.2rem;line-height:1.25;letter-spacing:-.035em;margin:8px 0}.journey-story p{font-size:.88rem;color:var(--muted);margin:0;line-height:1.6}
.demo-controls{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:20px}.demo-controls button,.cache-actions button,.library-controls button,.library-more{font:700 .83rem/1.3 inherit;font-family:inherit;font-size:.83rem;font-weight:700;min-height:44px;padding:10px 14px;border:1px solid var(--line);border-radius:999px;background:var(--paper);color:var(--ink);cursor:pointer;transition:background .2s,transform .2s}.demo-controls button:hover,.cache-actions button:hover,.library-more:hover{border-color:var(--brand)}.demo-controls button:disabled{opacity:.45;cursor:default}.demo-controls button.lab-primary,.cache-actions button.lab-primary{background:var(--brand);color:var(--paper);border-color:var(--brand)}.step-dots{display:flex;gap:5px}.step-dots i{height:5px;width:5px;background:var(--line);border-radius:50%;transition:width .25s,background .25s}.step-dots .is-current{width:18px;background:var(--brand)}
.path-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.learning-paths{border-top:1px solid var(--line)}.platform-home .section-head h2{font-size:clamp(1.7rem,3vw,2.3rem);line-height:1.15;margin-top:10px;letter-spacing:-.045em}.path-card{padding:26px;border-radius:22px;background:var(--card);border:1px solid var(--line);position:relative}.path-number{font-size:2rem;font-weight:800;letter-spacing:-.06em;color:var(--line);position:absolute;right:24px;top:14px}.path-card>.pill{margin-right:25px;font-size:.65rem}.path-card h3{font-size:1.2rem;line-height:1.25;letter-spacing:-.035em;margin:12px 0}.path-card>p:not(.pill){color:var(--muted);font-size:.9rem}.path-card ol{list-style:none;counter-reset:path;padding:0;margin:22px 0 0}.path-card li{counter-increment:path;border-top:1px solid var(--line)}.path-card li a{display:flex;gap:10px;padding:14px 0;color:var(--ink);text-decoration:none;font-size:.8rem;align-items:center;line-height:1.4;min-height:48px}.path-card li a:before{content:counter(path);color:var(--brand);font-weight:800}.path-card li a span{margin-left:auto;color:var(--brand)}.path-card li a:hover{color:var(--brand)}.platform-note{font-size:.8rem;color:var(--muted);line-height:1.65;margin:24px 0 0}
.guide-library{background:var(--card);border-top:1px solid var(--line)}.guide-library .section-head p:not(.eyebrow){color:var(--muted);font-size:.94rem}.library-controls{display:grid;grid-template-columns:2fr 1fr auto;gap:18px;align-items:end;margin:24px 0}.library-controls label,.hash-inputs label{display:grid;gap:8px;font-size:.8rem;font-weight:700}.library-controls input,.library-controls select,.hash-inputs input{min-width:0;width:100%;min-height:48px;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:12px;font:inherit;font-size:1rem}.library-count{color:var(--muted);font-size:.85rem}.library-more{display:block;margin:28px auto 0}.guide-library .card{box-shadow:none}.guide-library .card .meta{flex-wrap:wrap}.guide-library .card h3{font-size:1.07rem}.guide-library .card p{font-size:.87rem}.platform-promise{padding:70px 0;text-align:center}.platform-promise h2{font-size:clamp(1.7rem,3vw,2.6rem);letter-spacing:-.05em;line-height:1.15}.platform-promise p:not(.eyebrow){color:var(--muted);max-width:580px;margin:20px auto 28px}
.lab-intro{padding-top:65px;padding-bottom:65px;text-align:center}.lab-intro h1{font-size:clamp(2.8rem,6vw,5rem);line-height:1.05;letter-spacing:-.06em;margin:16px 0 22px}.lab-intro>p:not(.eyebrow){max-width:620px;margin:20px auto;color:var(--muted)}.lab-jump{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin:26px 0}.lab-jump a{padding:11px 16px;background:var(--card);border:1px solid var(--line);border-radius:999px;font-size:.85rem;font-weight:700;text-decoration:none}.lab-jump a:hover{color:var(--brand);border-color:var(--brand)}
.lab-experiment{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:64px;padding-top:65px;padding-bottom:65px;align-items:center;border-top:1px solid var(--line);scroll-margin-top:96px}.lab-number{font-size:.74rem;color:var(--brand);font-weight:750;letter-spacing:.06em}.experiment-copy h2{font-size:clamp(1.8rem,3.2vw,2.8rem);line-height:1.1;letter-spacing:-.05em;margin:16px 0 24px}.experiment-copy>p{color:var(--muted)}.lab-limit{margin:24px 0;font-size:.83rem;color:var(--muted)}.lab-limit summary{cursor:pointer;font-weight:700;color:var(--ink);padding:12px 0}.lab-limit p{margin:8px 0}.lab-reference{font-size:.77rem;line-height:1.7}.lab-reference a{color:var(--brand);text-underline-offset:3px}
.cache-scene{display:grid;grid-template-columns:1fr 18px 1fr 18px 1fr;align-items:center;gap:8px;margin:24px 0}.place-label{display:block;color:var(--muted);font-size:.72rem;margin-bottom:10px;text-align:center}.page-preview{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:12px;display:grid;justify-items:center;gap:10px;text-align:center;min-height:156px;transition:border-color .3s,transform .3s}.page-preview strong{font-size:.9rem}.page-preview small{font-size:.68rem;color:var(--muted)}.page-art{width:100%;height:53px;border-radius:6px;background:linear-gradient(135deg,var(--lab-soft),var(--brand));filter:hue-rotate(var(--page-hue,0deg));transition:filter .4s;opacity:.7}.page-preview[data-version="0"] .page-art{background:var(--line);filter:none}.cache-arrow{text-align:center;color:var(--muted)}.cache-demo[data-route="hit"] .cache-copy,.cache-demo[data-route="origin"] [data-origin-version]{border-color:var(--brand);transform:translateY(-4px)}.cache-result,.hash-result{font-size:.91rem;font-weight:600;line-height:1.55;min-height:86px;margin:22px 0 16px}.cache-actions{display:flex;flex-wrap:wrap;gap:10px}.lab-hint{font-size:.74rem;color:var(--muted);margin:20px 0 0;line-height:1.6}.hash-inputs{display:grid;grid-template-columns:1fr 1fr;gap:16px}.hash-output{margin-top:26px;display:grid;gap:8px}.hash-output>span{font-size:.72rem;color:var(--muted);margin-top:8px}.hash-output code{display:block;font-size:.87rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;line-height:1.9;overflow-wrap:anywhere;letter-spacing:.015em}.hash-different{background:var(--lab-soft);color:var(--brand);border-radius:2px}.hash-result{min-height:52px}.lab-next{padding-top:55px;padding-bottom:65px;border-top:1px solid var(--line)}.lab-next h2{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.2;letter-spacing:-.04em}.lab-next-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.lab-next-grid a{display:block;background:var(--card);border:1px solid var(--line);border-radius:22px;padding:26px;text-decoration:none}.lab-next-grid a>span{font-size:.72rem;color:var(--brand);font-weight:700}.lab-next-grid strong{display:block;font-size:1.3rem;line-height:1.25;letter-spacing:-.035em;margin:15px 0}.lab-next-grid p{font-size:.85rem;color:var(--muted)}.lab-next-grid a:hover{border-color:var(--brand)}
.navlinks .lab-nav{font-weight:750;color:var(--brand)}
@media(min-width:950px){.hero-split .journey-demo{transform:rotate(1deg)}}
@media(max-width:1000px){.hero-split{gap:28px}.lab-experiment{gap:32px}.path-grid{gap:16px}.path-card{padding:20px}.demo-controls .step-dots{display:none}.journey-story{min-height:190px}}
@media(max-width:780px){.hero-split,.lab-experiment{grid-template-columns:1fr}.platform-hero{padding:42px 0}.hero-copy h1{max-width:600px}.hero-split .journey-demo{max-width:580px;width:100%;margin:10px auto 0}.path-grid{grid-template-columns:1fr}.path-card{padding:24px}.path-card h3{font-size:1.3rem}.path-card>p:not(.pill){max-width:500px}.lab-intro{padding:45px 0}.lab-experiment{padding-top:44px;padding-bottom:44px;gap:24px}.experiment-copy h2 br{display:none}.experiment-copy h2{max-width:540px}.experiment-copy>p{max-width:600px}.lab-next-grid{grid-template-columns:1fr}.library-controls{grid-template-columns:1fr 1fr}.library-controls label:first-child{grid-column:1/-1}.library-controls button{justify-self:start}.journey-story{min-height:145px}.section-head{align-items:start}.section-head>a{max-width:120px;text-align:right}}
@media(max-width:520px){.journey-demo,.cache-demo,.hash-demo{padding:20px;border-radius:22px}.demo-topline{font-size:.66rem;margin-bottom:22px}.mini-browser{gap:8px;font-size:.69rem}.address-check{display:none}.journey-scene{grid-template-columns:1fr 30px 1fr;min-height:168px}.journey-story{min-height:172px}.demo-controls button,.cache-actions button{font-size:.78rem;padding:10px 12px}.cache-scene{grid-template-columns:1fr 12px 1fr;gap:8px}.cache-scene>.cache-arrow:nth-child(4){display:none}.cache-scene>.cache-place:last-child{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;align-items:center;margin-top:18px;gap:20px}.cache-scene>.cache-place:last-child .page-preview{min-height:125px}.cache-scene>.cache-place:last-child .place-label{font-size:.82rem;text-align:left}.page-preview{min-height:140px}.cache-result{min-height:100px}.hash-inputs{grid-template-columns:1fr}.hash-output code{font-size:.86rem}.navlinks .lab-nav{display:none}.lab-jump{justify-content:flex-start}.lab-jump a{flex:1 1 auto;text-align:center}.platform-home .hero-actions .button{font-size:.85rem}.platform-home .section-head{flex-wrap:wrap}.section-head>a{max-width:none;text-align:left}}
@media(prefers-reduced-motion:reduce){.platform-home *, .platform-lab *{transition:none!important;animation:none!important}html{scroll-behavior:auto}}
@media(max-width:560px){.navlinks>a.lab-nav{display:inline;font-size:.75rem}.navlinks>a[href="/"]{display:none}}
@media(max-width:380px){.hero-copy h1{font-size:2.1rem}.hero-copy>p:not(.eyebrow){font-size:1rem}}