:root{color-scheme:light;--navy:#132e48;--ink:#203b51;--muted:#64788a;--line:#dce5eb;--blue:#087abb;--paper:#f3f6f8;--green:#157354}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button,input,select{font:inherit}
button{cursor:pointer}
a{color:var(--blue)}
a:focus-visible,button:focus-visible{outline:3px solid #f0ac48;outline-offset:2px}
.skip{position:absolute;left:8px;top:-40px;background:#fff;padding:8px 12px;z-index:3}
.skip:focus{top:8px}
.masthead{min-height:64px;background:var(--navy);color:#fff;display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;padding:10px 16px;border-bottom:3px solid #169bd7}
.brand{display:flex;align-items:center;gap:10px;min-height:44px;color:#fff;text-decoration:none;font-size:18px;font-weight:750;letter-spacing:1px}
.brand-icon{display:grid;place-items:center;background:#1299d4;border-radius:5px;width:32px;height:32px}
.atlas-link{color:#fff;font-size:14px;min-height:44px;display:inline-flex;align-items:center}
main{padding:16px;max-width:72rem;margin:0 auto}
h1{font-size:28px;line-height:1.2;margin:6px 0 10px}
h2{font-size:20px;margin:22px 0 8px}
h3{font-size:18px;margin:16px 0 8px}
p,li{margin:8px 0;max-width:70rem}
p,li,td,th,button,a{overflow-wrap:break-word}
.eyebrow{font-size:12px;letter-spacing:1.4px;font-weight:700;color:var(--muted);margin:0}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:0.92em}
.toolbar{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.toolbar button,.actions button,.actions a{min-height:44px}
button{min-height:44px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:6px;padding:8px 12px;text-align:left}
button:hover{border-color:var(--blue);color:var(--blue)}
button[aria-pressed="true"]{border-color:var(--blue);background:#e7f2fb}
.example[data-mark="node"] [data-part="node"],
.example[data-mark="port"] [data-part="port"],
.example[data-mark="wire"] [data-part="wire"],
.example[data-mark="class"] [data-part="class"],
.example[data-mark="check"] [data-part="check"]{outline:2px solid var(--blue);background:#e7f2fb}
.stack{display:grid;gap:12px}
.card,[data-on="true"]{background:#fff}
.card{border:1px solid var(--line);border-radius:8px;padding:12px}
[data-on="true"]{background:#e7f2fb}
tr[data-on="true"] td{background:#e7f2fb}
.actions,.class-list{display:flex;flex-wrap:wrap;gap:8px}
.ports{list-style:none;padding:0;margin:8px 0 0}
.ports li{border-top:1px solid var(--line);padding-top:8px}
.scroll{overflow-x:auto;max-width:100%;background:#fff;border:1px solid var(--line);border-radius:8px}
table{border-collapse:collapse;width:100%;font-size:16px}
caption{text-align:left;padding:10px 12px;color:var(--muted);font-size:14px}
th,td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
th{background:#f2f6f8;color:#526a7c;font-weight:650}
#detail p{margin:4px 0}
@media (max-width:700px){
.actions button,.actions a,.class-list button,.toolbar button{flex:1 1 100%}
.card button,.ports button,.ports a{display:flex;width:100%;align-items:center}
}
@media (min-width:900px){
main{padding:28px 32px}
h1{font-size:32px}
.stack.nodes{grid-template-columns:1fr 1fr}
}