@font-face{font-family:"Plex";src:url(fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Plex";src:url(fonts/ibm-plex-sans-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Plex";src:url(fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"PlexMono";src:url(fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"PlexMono";src:url(fonts/ibm-plex-mono-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}

:root{
  --paper:#f7f6f2; --paper-2:#efede6; --ink:#121212; --ink-2:#3a3a38; --muted:#6b6a65;
  --rule:#d9d6cc; --night:#141515; --night-2:#1d1f1f; --night-rule:#333535; --night-muted:#a3a29c;
  --sun:#f2c000; --sun-ink:#7a5f00;
  --wrap:1180px; --gut:clamp(20px,4vw,48px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.6 "Plex",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}
h1,h2,h3{font-weight:600;letter-spacing:-.015em;line-height:1.12;margin:0;text-wrap:balance}
p{margin:0;text-wrap:pretty}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.mono{font-family:"PlexMono",ui-monospace,monospace;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase}
:focus-visible{outline:2px solid var(--sun);outline-offset:3px}

/* header */
header{position:sticky;top:0;z-index:10;background:rgba(247,246,242,.94);backdrop-filter:saturate(1.2) blur(6px);border-bottom:1px solid var(--rule)}
.bar{display:flex;align-items:center;justify-content:space-between;height:104px}
/* logo.webp has ~20% empty margin top and bottom: crop it with a fixed-height window */
.logo{display:block;height:72px;overflow:hidden;margin-left:-12px}
.logo img{height:120px;width:auto;display:block;margin-top:-24px}
@media (max-width:600px){.bar{height:80px}.logo{height:52px;margin-left:-9px}.logo img{height:87px;margin-top:-17px}}
nav{display:flex;gap:26px;align-items:center;margin-left:48px}
@media (max-width:600px){nav{margin-left:16px;gap:12px}}
nav a{text-decoration:none;font-size:.95rem;color:var(--ink-2);white-space:nowrap}
nav a:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:0 20px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);text-decoration:none;font-weight:500;font-size:.95rem;transition:background .15s,color .15s}
.btn:hover{background:var(--sun);border-color:var(--sun);color:var(--ink)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.sun{background:var(--sun);border-color:var(--sun);color:var(--ink)}
.btn.sun:hover{background:transparent;color:var(--sun)}
.btn.ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
@media (max-width:1000px){nav>a:not(.btn){display:none}}
.mnav{display:none;position:relative}
.mnav summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:10px;padding:9px 14px;border:1px solid var(--ink);font-size:.95rem;font-weight:500;color:var(--ink);background:var(--paper);user-select:none}
.mnav summary::-webkit-details-marker{display:none}
.mnav .burger{position:relative;width:16px;height:2px;background:var(--ink);box-shadow:0 -5px 0 var(--ink),0 5px 0 var(--ink)}
.mnav[open] .burger{background:transparent;box-shadow:none}
.mnav[open] .burger::before,.mnav[open] .burger::after{content:"";position:absolute;left:0;top:0;width:16px;height:2px;background:var(--ink);transform:rotate(45deg)}
.mnav[open] .burger::after{transform:rotate(-45deg)}
.mnav-panel{position:absolute;right:0;top:calc(100% + 12px);width:min(280px,calc(100vw - 32px));background:var(--paper);border:1px solid var(--ink);box-shadow:0 14px 34px rgba(0,0,0,.14);padding:6px 0;z-index:60}
nav .mnav-panel a{display:block!important;padding:13px 20px;color:var(--ink);font-size:1rem;text-decoration:none}
nav .mnav-panel a+a{border-top:1px solid var(--rule)}
nav .mnav-panel a.cta{margin:8px 12px 6px;border:0;background:var(--ink);color:var(--paper);text-align:center;font-weight:500}
@media (max-width:1000px){.mnav{display:block}}
@media (max-width:600px){nav>a.btn{display:none}}


/* footer */
.foot{border-top:1px solid var(--rule);padding:32px 0 40px;color:var(--muted);font-size:.9rem}
.foot .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot a{text-decoration:none}.foot a:hover{color:var(--ink)}

.lbl-sm{display:none}
@media (max-width:600px){.lbl-lg{display:none}.lbl-sm{display:inline}}
.cta-band{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;border-top:1px solid var(--ink);padding-top:32px}
.cta-band p{font-size:1.2rem;max-width:36em}

/* ---- Documentation pages ---- */
.dhead{padding:clamp(40px,6vw,72px) 0 clamp(28px,4vw,44px);border-bottom:1px solid var(--rule)}
.crumb{font-size:.9rem;color:var(--muted);margin-bottom:22px}
.crumb a{text-decoration:none;color:var(--ink-2)}
.crumb a:hover{color:var(--ink);text-decoration:underline}
.crumb i{font-style:normal;margin:0 8px;color:var(--sun-ink)}
.dhead .mono{color:var(--sun-ink);margin-bottom:20px;display:flex;gap:12px;align-items:center}
.dhead .mono::before{content:"";width:28px;height:2px;background:var(--sun)}
.dhead h1{font-size:clamp(1.9rem,3.4vw,2.75rem);max-width:20em}
.dhead .lede{margin-top:20px;font-size:1.15rem;color:var(--ink-2);max-width:40em}
.docwrap{display:grid;grid-template-columns:240px minmax(0,1fr);gap:clamp(32px,5vw,72px);padding-top:clamp(36px,5vw,56px);padding-bottom:clamp(64px,8vw,104px);align-items:start}
.toc{position:sticky;top:128px}
.toc .mono{color:var(--muted);margin-bottom:12px}
.toc a{display:block;padding:8px 0 8px 14px;border-left:2px solid var(--rule);text-decoration:none;color:var(--ink-2);font-size:.95rem;line-height:1.35}
.toc a:hover{color:var(--ink);border-left-color:var(--ink)}
.toc a[aria-current=page]{border-left-color:var(--sun);color:var(--ink);font-weight:600}
.toc-m{display:none;border:1px solid var(--ink);background:#fff;margin-bottom:8px}
.toc-m summary{cursor:pointer;list-style:none;padding:12px 16px;font-weight:600;display:flex;justify-content:space-between;align-items:center}
.toc-m summary::-webkit-details-marker{display:none}
.toc-m summary::after{content:"+";font:500 1.1rem "PlexMono",monospace}
.toc-m[open] summary::after{content:"\2212"}
.toc-m a{display:block;padding:11px 16px;border-top:1px solid var(--rule);text-decoration:none;color:var(--ink-2)}
.toc-m a[aria-current=page]{color:var(--ink);font-weight:600;background:var(--paper-2)}
@media (max-width:960px){.docwrap{grid-template-columns:1fr}.toc{display:none}.toc-m{display:block}}
ul,ol,dl,figure{margin:0}
.art{min-width:0;max-width:760px}
.art>*+*{margin-top:18px}
.art h2{margin-top:56px;font-size:clamp(1.4rem,2.4vw,1.75rem);scroll-margin-top:128px}
.art h2:first-child{margin-top:0}
.art h3{margin-top:30px;font-size:1.15rem}
.art p,.art li{color:var(--ink-2)}
.art strong{color:var(--ink);font-weight:600}
.art a{text-decoration-thickness:1px;text-underline-offset:3px}
.art ul{padding:0;list-style:none;display:grid;gap:8px}
.art ul li{padding-left:18px;position:relative}
.art ul li::before{content:"";position:absolute;left:0;top:.75em;width:8px;height:2px;background:var(--sun)}
.ui{font:500 .8em "PlexMono",ui-monospace,monospace;background:var(--paper-2);border:1px solid var(--rule);padding:1px 6px;white-space:nowrap;color:var(--ink)}
ol.st{padding:0;list-style:none;display:grid;gap:14px;counter-reset:st}
ol.st>li{counter-increment:st;position:relative;padding-left:44px;min-height:30px}
ol.st>li::before{content:counter(st);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--sun);color:var(--ink);display:grid;place-items:center;font:600 .85rem "PlexMono",monospace}
dl.keys{display:grid;border-top:1px solid var(--ink)}
dl.keys>div{display:grid;grid-template-columns:200px 1fr;gap:6px 24px;padding:14px 0;border-bottom:1px solid var(--rule)}
dl.keys dt{font:500 .8rem/1.5 "PlexMono",ui-monospace,monospace;letter-spacing:.02em;color:var(--ink)}
dl.keys dd{margin:0;color:var(--ink-2)}
@media (max-width:600px){dl.keys>div{grid-template-columns:1fr}}
.fig{margin:28px 0 0}
.fig img{display:block;width:100%;height:auto;border:1px solid var(--rule);background:#fff;box-shadow:0 1px 0 var(--rule)}
.fig figcaption{margin-top:10px;color:var(--muted);font-size:.9rem}
.note{border-left:3px solid var(--sun);background:var(--paper-2);padding:14px 18px;color:var(--ink-2)}
.note strong{color:var(--ink)}
.dflow{display:flex;align-items:stretch;margin:26px 0 0}
.dflow .n{flex:1 1 0;min-width:0;border:1px solid var(--ink);background:#fff;padding:14px 14px 16px}
.dflow .n b{display:block;font-weight:600;color:var(--ink);line-height:1.25}
.dflow .n span{display:block;margin-top:6px;font-size:.88rem;line-height:1.45;color:var(--ink-2)}
.dflow .n.rr{background:var(--ink)}
.dflow .n.rr b{color:var(--paper)}
.dflow .n.rr span{color:#c9c7bf}
.dflow .a{flex:0 0 38px;display:grid;place-items:center;color:var(--sun-ink);font-weight:600;font-size:1.3rem}
@media (max-width:760px){.dflow{flex-direction:column}.dflow .a{flex:none;height:34px;transform:rotate(90deg)}}
.dg{margin:26px 0 0;border:1px solid var(--rule);background:#fff;padding:clamp(12px,2vw,22px)}
.dg svg{display:block;width:100%;height:auto;max-width:560px;margin:0 auto;font-family:"Plex",system-ui,sans-serif}
.dg figcaption{margin-top:12px;color:var(--muted);font-size:.9rem;text-align:center}
.dg .t{font:600 13px "Plex",system-ui,sans-serif;fill:#121212}
.dg .s{font:400 12px "Plex",system-ui,sans-serif;fill:#6b6a65}
.dg .ax{stroke:#9b998f;stroke-width:1.5;fill:none}
.dg .ln{stroke:#121212;stroke-width:2.2;fill:none;stroke-linejoin:round;stroke-linecap:round}
.dg .th{stroke:#c0392b;stroke-width:1.6;stroke-dasharray:6 5;fill:none}
.dg .tl{stroke:#2563b0;stroke-width:1.6;stroke-dasharray:6 5;fill:none}
.dg .brk{stroke:#7a5f00;stroke-width:1.6;fill:none}
.dg .dot{fill:#f2c000;stroke:#121212;stroke-width:1.6}
.dg .col{fill:#2e7d32}
.dg .col2{fill:#a5c8a7}
.dg .lead{stroke:#6b6a65;stroke-width:1.2;stroke-dasharray:2 4}
.pn{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:64px;border-top:2px solid var(--ink);padding-top:24px}
.pn a{display:block;text-decoration:none;border:1px solid var(--rule);background:#fff;padding:16px 18px}
.pn a:hover{border-color:var(--ink)}
.pn small{display:block;font:400 .72rem "PlexMono",monospace;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.pn b{font-weight:600;color:var(--ink)}
.pn a.next{text-align:right;grid-column:2}
@media (max-width:600px){.pn{grid-template-columns:1fr}.pn a.next{grid-column:1;text-align:left}}
.cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cards a{display:block;text-decoration:none;border:1px solid var(--rule);background:#fff;padding:18px 20px}
.cards a:hover{border-color:var(--ink)}
.cards b{display:block;font-weight:600;color:var(--ink);margin-bottom:6px}
.cards span{font-size:.95rem;color:var(--ink-2)}
@media (max-width:600px){.cards{grid-template-columns:1fr}}
.roles{display:grid;border-top:1px solid var(--ink)}
.roles>div{padding:16px 0;border-bottom:1px solid var(--rule)}
.roles b{display:block;color:var(--ink);font-weight:600;margin-bottom:4px}
.gal{display:grid;grid-template-columns:1fr 1fr;gap:30px 22px;align-items:start;margin-top:26px}
.gal .gi{margin:0}
.gal .gi img{display:block;width:100%;height:auto;border:1px solid var(--rule);background:#fff;box-shadow:0 1px 0 var(--rule)}
.gal figcaption{margin-top:10px;font-size:.93rem;line-height:1.5;color:var(--ink-2)}
.gal figcaption b{display:block;color:var(--ink);font-weight:600;margin-bottom:2px}
.gal .wide{grid-column:1/-1}
.cap{margin-top:12px;color:var(--muted);font-size:.9rem}
@media (max-width:560px){.gal{grid-template-columns:1fr}}