@font-face{font-family:Plex;src:url(/fonts/ibm-plex-sans-latin.woff2) format("woff2");font-display:swap}
@font-face{font-family:Serif;src:url(/fonts/source-serif-4-latin.woff2) format("woff2");font-weight:600;font-display:swap}
:root{color-scheme:light;--paper:#f6f4ef;--panel:#fffefb;--ink:#17191c;--muted:#454a52;--rule:#e2ded4;--accent:#1d5c46;--on:#fff;--edge:#646a73}
@media(prefers-color-scheme:dark){:root{color-scheme:dark;--paper:#131416;--panel:#1a1b1e;--ink:#ecebe6;--muted:#b8b6af;--rule:#2c2d31;--accent:#7cc3a1;--on:#0f1a15;--edge:#95948e}}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 Plex,system-ui,sans-serif}
.wrap{max-width:1080px;margin:auto;padding:0 24px 40px}header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 0;border-bottom:1px solid var(--ink)}
.mark{font:600 25px Serif,Georgia,serif;text-decoration:none;color:var(--ink)}nav{display:flex;gap:16px;flex-wrap:wrap}nav a{min-height:44px;display:inline-flex;align-items:center}
a{color:var(--accent);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.skip{position:absolute;left:16px;top:-100px;background:var(--panel);padding:10px;z-index:1}.skip:focus{top:8px}
.intro{max-width:780px;margin:40px 0 28px}.eyebrow{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
h1,h2,h3{font-family:Serif,Georgia,serif;font-weight:600;line-height:1.2}h1{font-size:42px;letter-spacing:-.7px;margin:8px 0 14px}h2{font-size:25px;margin:0 0 16px}h3{font-size:21px;margin:0 0 10px}
p{margin:12px 0;color:var(--muted)}.intro>p:last-child{font-size:19px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.panel{border:1px solid var(--rule);border-radius:12px;background:var(--panel);padding:24px;min-width:0}.controls{display:grid;grid-template-columns:1fr 100px;gap:16px}
label{display:block;font-weight:600;margin-bottom:6px}select,textarea{width:100%;background:var(--panel);color:var(--ink);border:1px solid var(--edge);border-radius:6px;padding:10px;font:inherit;min-height:44px}
textarea{font:13px/1.65 Consolas,monospace;resize:vertical;margin-bottom:8px}button{background:var(--accent);color:var(--on);border:0;border-radius:6px;padding:12px 18px;min-height:44px;font:600 16px Plex,system-ui,sans-serif;cursor:pointer}
button:disabled,select:disabled{opacity:.65;cursor:default}.note{font-size:14px}.status{min-height:24px;font-size:14px}iframe{width:100%;height:560px;border:1px solid var(--rule);border-radius:6px;background:white}
.steps{max-width:780px;display:grid;gap:20px}.steps li{margin:10px 0;padding-left:4px}code{overflow-wrap:anywhere;white-space:normal}footer{border-top:1px solid var(--rule);margin-top:32px;padding-top:20px;font-size:14px}footer p{margin:8px 0}
@media(max-width:700px){.grid{grid-template-columns:1fr}h1{font-size:32px}.wrap{padding:0 18px 32px}.panel{padding:20px}.intro{margin-top:28px}header{align-items:flex-start;flex-direction:column;gap:4px;padding:18px 0}nav{gap:20px}}