:root{--bg:#edf1f4;--paper:#fff;--ink:#17242d;--muted:#566672;--line:#cdd7de;--blue:#2059ff;--uart:#376cd5;--usb:#008f8a;--power:#bb711b;--amber:#8b5715;font-family:"Avenir Next",Avenir,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:14px;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{border:1px solid var(--line);background:var(--paper);color:var(--ink);padding:8px 11px;border-radius:5px;cursor:pointer}button:hover{border-color:#7c90a0}button[aria-pressed=true]{background:var(--blue);color:#fff;border-color:var(--blue)}button:disabled{opacity:.5;cursor:default}a{color:#164dc9;text-underline-offset:3px}button:focus-visible,a:focus-visible,input:focus-visible,canvas:focus-visible{outline:3px solid 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var(--line);font-size:12px;flex-wrap:wrap}.scene-tools label{display:flex;gap:5px;align-items:center;margin-right:auto}.scene-tools input{accent-color:var(--blue)}.scene-tools button{font-size:12px;padding:5px 9px}.legend{display:flex;gap:16px;align-items:center;flex-wrap:wrap;padding:0 18px 15px;color:var(--muted);font-size:11px}.legend span{display:flex;align-items:center;gap:6px}.legend i{width:18px;height:3px;display:inline-block;border-radius:2px}.uart{background:var(--uart)}.usb{background:var(--usb)}.power{background:var(--power)}.alternate{background:#738390}.legend .unknown{height:0;background:none;border-top:2px dashed #bc8b3d}aside{border-left:1px solid var(--line);padding:22px 20px;min-width:0}.eyebrow{font-size:10px;letter-spacing:1.5px;color:var(--muted);display:block;margin-bottom:8px}.aside-title h2{font-size:24px;margin-bottom:6px}.aside-title p{font-size:12px;color:var(--muted);margin-bottom:18px}.connector-list{display:grid;gap:5px;margin-bottom:20px}.connector-list 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