@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600&display=swap');
:root{color-scheme:light;--ink:#20252b;--muted:#626b74;--line:#d8dfe4;--accent:#244f74;--font:'IBM Plex Sans',Arial,sans-serif}
*{box-sizing:border-box}
html{scroll-padding-top:2rem}
body{margin:0;background:#fff;color:var(--ink);font-family:var(--font);font-size:20px;line-height:1.6}
.intro,.text{max-width:740px;margin-inline:auto}
.intro{padding-top:76px;padding-bottom:42px}
.eyebrow,.section-number,.technical,figcaption{font-family:var(--font);font-size:14px;line-height:1.5}
.eyebrow{color:var(--muted);margin-bottom:24px}
h1,h2,h3{font-weight:500;line-height:1.23}
h1{font-size:clamp(3rem,4.5vw,4.5rem);letter-spacing:-.035em;margin:0 0 24px}
.context{color:var(--muted);max-width:660px}
h2{font-size:clamp(2.25rem,3vw,3rem);letter-spacing:-.025em;margin:12px 0 32px}
h3{font-size:1.25rem;margin:32px 0 16px}
p{margin:0 0 20px}
.section{max-width:1160px;margin:0 auto;padding:64px 0 80px;border-top:1px solid var(--line)}
.section-number{color:var(--accent)}
.visuals{margin-top:40px}
.visuals:empty{display:none}
.pair,.columns{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.columns{margin-top:24px}
.columns h3{margin-top:0}
.columns ul{padding-left:22px}
li{padding-left:3px;margin-bottom:12px}
.contribution{padding-top:24px;border-top:1px solid var(--line);margin-top:24px}
.proof{margin:0 0 14px;min-width:0}
.placeholder{aspect-ratio:16/9;background:#f4f6f8;border:1px dashed #bbc6cf;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:14px;padding:24px;text-align:center;color:#485761}
.placeholder>.technical{color:var(--muted)}
figcaption{margin-top:5px;color:var(--muted)}
.translation{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;border-top:1px solid var(--line);padding-top:32px}
.translation h3{margin-top:12px}
.translation .placeholder{aspect-ratio:4/3}
code,pre{font-family:var(--font);font-size:14px}
pre{white-space:pre;overflow-x:auto;background:#f4f6f8;border:1px solid var(--line);padding:22px;min-height:190px;line-height:1.7}
.section-3 h3{border-top:1px solid var(--line);padding-top:28px;margin-top:36px}
.section-6 h3{margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.skip-link{position:fixed;left:16px;top:-100px;padding:12px 20px;background:white;z-index:10}
.skip-link:focus{top:16px}
:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.media-button{display:block;padding:0;width:100%;border:0;background:transparent;cursor:zoom-in;overflow:hidden}
.media-button img{width:100%;height:auto;display:block;transition:transform .18s ease}
@media(hover:hover) and (prefers-reduced-motion:no-preference){.media-button[data-kind="static"]:hover img{transform:scale(1.025)}}
dialog{width:calc(100% - 32px);max-width:1400px;max-height:94dvh;padding:64px 20px 16px;border:0;background:white;overflow:hidden}
dialog::backdrop{background:rgb(15 23 32 / .85)}
.close{position:absolute;right:16px;top:12px;min-height:44px;padding:8px 16px;font:inherit;font-size:16px;cursor:pointer;border:1px solid var(--line);background:white;z-index:1}
.lightbox-scroll{overflow:auto;max-height:calc(94dvh - 130px);touch-action:pan-x pan-y pinch-zoom}
.lightbox-scroll img{display:block;max-width:100%;height:auto;margin:auto}
dialog p{font-size:14px;margin:12px 0 0}
body.lightbox-open{overflow:hidden}
@media(max-width:800px){body{font-size:18px}.intro{padding:42px 24px 30px}.section{padding:40px 24px 48px}.pair,.columns,.translation{grid-template-columns:1fr;gap:12px}.visuals{margin-top:28px}.placeholder{padding:20px}.columns h3{margin-top:20px}.section h2{margin-bottom:24px}.translation{gap:24px}dialog{width:100%;max-height:100dvh;height:100dvh;margin:0}.lightbox-scroll{max-height:calc(100dvh - 130px)}}
.gif-media img{display:block;width:auto;max-width:100%;height:auto;border:1px solid #d8dfe4}

.lightbox-scroll{cursor:grab;touch-action:none;user-select:none;overscroll-behavior:contain}
.lightbox-scroll.dragging{cursor:grabbing}
.lightbox-scroll img{max-width:none;max-height:none;margin:0;height:auto;pointer-events:none}
@media(max-width:480px){body{font-size:18px}}

.chapter-nav{position:fixed;top:0;left:0;z-index:20;background:#fff;max-width:100%;box-shadow:0 1px 0 var(--line)}
.chapter-toggle{display:flex;align-items:center;justify-content:center;width:72px;height:64px;border:0;background:white;color:var(--ink);cursor:pointer;font-size:30px}
.chapter-list{width:min(670px,100vw);max-height:calc(100dvh - 64px);overflow-y:auto;padding:0 24px 24px;background:#fff}
.chapter-list[hidden]{display:none}
.chapter-list a{display:block;padding:16px 0;border-bottom:1px solid var(--line);font-size:22px;line-height:1.3;color:var(--ink);text-decoration:none}
.chapter-list a:hover,.chapter-list a:focus-visible{color:var(--accent)}
html{scroll-padding-top:84px}
@media(max-width:800px){.intro{padding-top:90px}.chapter-list a{font-size:18px}}
.chapter-nav{width:100%;transition:background-color .2s ease}
.chapter-toggle{background:transparent;transition:height .2s ease;font-size:26px}
.chapter-nav.is-scrolled{background:rgb(255 255 255 / .8);backdrop-filter:blur(8px)}
.chapter-nav.is-scrolled .chapter-toggle{height:32px}
.chapter-nav.is-scrolled .chapter-list{max-height:calc(100dvh - 32px)}
.chapter-list{padding:0 16px 16px}
.chapter-list a{display:flex;align-items:baseline;gap:10px;padding:10.6667px 0;font-size:18px}
.chapter-index{flex:0 0 1.5em;color:var(--muted);font-variant-numeric:tabular-nums}
@media(max-width:800px){.chapter-list a{font-size:16px}}
@media(prefers-reduced-motion:reduce){.chapter-nav,.chapter-toggle{transition:none}}
.media-button,.media-button img,.gif-media img{border-radius:12px}
.chapter-list{width:100%;padding:0 0 16px}
.chapter-list a{padding:10.6667px max(24px,calc((100% - 740px)/2));gap:10px;border-bottom:1px solid #d8dfe4;color:var(--ink)}
.chapter-list a:hover,.chapter-list a:focus-visible{background:#E7E7E7;color:var(--ink)}
.chapter-index{color:inherit}
.chapter-list a{border-bottom-color:#F2F2F2}.chapter-list a:hover,.chapter-list a:focus-visible{background:#F2F2F2}

.chapter-backdrop{position:fixed;inset:0;z-index:19;background:rgba(0,0,0,.3)}.chapter-backdrop[hidden]{display:none}

.chapter-list a{align-items:flex-start}.chapter-index{font-size:12px;line-height:1.3}

.visuals:not(:empty){background:#F2F2F2;padding:24px;border-radius:12px}.visuals>.proof:last-child,.visuals>.pair:last-child .proof:last-child{margin-bottom:0}@media(max-width:800px){.visuals:not(:empty){padding:16px}}

.chapter-list a{gap:7.5px}.chapter-index{flex-basis:1.125em}

.chapter-toggle{font-size:17.3333px}

.section-3 h3{border-top:0}

.text h3.rubric-heading{font-size:24px;font-weight:500;color:#20252B;line-height:1.4;border-top:0;border-bottom:1px solid #D8DFE4;padding:0 0 12px;margin-bottom:16px}

@media(max-width:800px){.text h3.rubric-heading{font-size:20px}}

.section-5 .columns{column-gap:28px}.section-5 .text h3.rubric-heading{margin-bottom:12.3077px}.section-5 .columns ul{margin-top:12.3077px}.section-5 .columns li{margin-bottom:9.2308px}

.text .columns{column-gap:28px}.text .columns h3.rubric-heading{margin-bottom:12.3077px}.text .columns ul{margin-top:12.3077px;line-height:1.4}.text .columns li{margin-bottom:9.2308px}

.workflow-steps{list-style:none;padding:0;margin:28px 0 0}
.workflow-step{position:relative;display:grid;grid-template-columns:40px minmax(0,1fr);gap:20px;margin:0;padding:0 0 36px}
.workflow-step:not(:last-child)::before{content:'';position:absolute;left:19.5px;top:40px;bottom:0;border-left:1px solid #D8DFE4}
.step-number{position:relative;display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid #D8DFE4;border-radius:50%;background:#F2F2F2;color:#20252B;font-size:16px;font-weight:500;line-height:1}
.section-3 .workflow-step h3{margin:6px 0 12px;padding:0;border:0}
.workflow-step p{margin:0}
.workflow-step:last-child{padding-bottom:0}
@media(max-width:800px){.workflow-step{gap:14px;padding-bottom:28px}}
.workflow-step{grid-template-columns:36px minmax(0,1fr)}.step-number{width:36px;height:36px;border:0}.workflow-step:not(:last-child)::before{left:17.5px;top:36px}

.step-number{background:#6E6E6E;color:#FFFFFF}

.text h3.rubric-heading{font-weight:600}



.code-examples h3.rubric-heading{font-size:24px;font-weight:600;line-height:1.4;border-bottom:1px solid #D8DFE4;padding-bottom:12px;margin:32px 0 16px}.code-preview{display:block;min-width:0;border-radius:12px;overflow:hidden}.code-preview img{display:block;width:100%;height:auto;border-radius:12px}.code-example+.code-example{margin-top:24px}@media(max-width:800px){.code-examples h3.rubric-heading{font-size:20px}}
.contact-footer{max-width:740px;margin:0 auto;padding:48px 0 64px;border-top:1px solid var(--line)}
.contact-footer h2{font-size:32px;margin:0 0 12px}
.contact-footer>p{font-size:16px;color:var(--muted);line-height:1.5}
.contact-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.contact-button{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:8px 14px;border:1px solid var(--line);border-radius:6px;background:white;color:var(--ink);font:400 16px/1.4 var(--font);text-decoration:none;cursor:pointer}
.contact-button:hover{background:#F2F2F2}
.contact-button svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.contact-footer .copy-status{min-height:24px;margin:12px 0 0;font-size:14px}
@media(max-width:800px){.contact-footer{margin:0 24px;padding:40px 0 48px}.contact-footer h2{font-size:28px}}
.contact-footer .copy-status:empty{display:none}

.contact-button{border-radius:999px}

.contact-actions{gap:8px}.contact-button{padding-inline:21px}

.contact-footer{position:relative;border-top:0}.contact-footer::before{content:"";position:absolute;top:0;left:0;width:100%;height:1px;background:var(--line)}

.close{border-radius:999px}#code-lightbox{height:90dvh;padding:64px 0 0;background:#25272B;max-width:1400px}.code-frame{display:block;width:100%;height:100%;border:0}#code-lightbox .close{background:#303339;color:#BCBEC4;border-color:#50545C}
.gif-media img{width:300px;max-width:100%;height:auto}

.status-columns{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;max-width:740px;margin:0 auto;align-items:start}.status-columns h2{margin-top:12px}@media(max-width:800px){.status-columns{grid-template-columns:1fr}}
.gif-media img{border-radius:2px}

.gif-media img{border:0}

.contact-button.contact-primary{background:#20252B;color:#FFFFFF;border-color:#20252B}.contact-button.contact-primary:hover{background:#363C43;border-color:#363C43}

.contact-footer{padding-top:96px}@media(max-width:800px){.contact-footer{padding-top:80px}}

.chapter-list a{font-size:24px}@media(max-width:800px){.chapter-list a{font-size:20px}}

h1{margin-bottom:36px}.section h2{margin-bottom:48px}.contact-footer h2{margin-bottom:18px}@media(max-width:800px){.section h2{margin-bottom:36px}}

.contact-footer>p:not(.copy-status){font-size:inherit;color:var(--ink);line-height:inherit}

.contact-footer h2{margin-bottom:27px}.contact-actions{margin-top:36px}

@media(max-width:800px){.chapter-toggle{width:100%;justify-content:flex-start;padding-left:27.3333px}}

@media(max-width:800px){.chapter-toggle{font-size:26px;padding-left:23px}.contact-button{font-size:24px;min-height:66px;padding:12px 31.5px;gap:15px}.contact-button svg{width:27px;height:27px}}

@media(max-width:460px){.contact-actions{flex-direction:column;align-items:stretch}.contact-button{width:100%;justify-content:center}}

.contact-footer h2{font-size:24px}@media(max-width:800px){.contact-footer h2{font-size:20px}}

.contact-footer h2{font-weight:600}

.contact-footer{max-width:none;margin-inline:0;padding-inline:max(24px,calc((100% - 740px)/2))}@media(max-width:800px){.contact-footer{margin-inline:0}}

.media-button,.media-button img,.code-preview,.code-preview img{border-radius:8px}