*{box-sizing:border-box}body{margin:0;background:white;color:#484848;font:14px Arial,Helvetica,sans-serif}.tools{display:flex;gap:8px;align-items:center;justify-content:center;flex-wrap:wrap;padding:8px}button,select{min-height:36px;background:#fff;border:1px solid #bbb;color:#333;border-radius:2px;padding:6px 10px}button{cursor:pointer;min-width:36px}button:focus-visible,select:focus-visible,#stage:focus-visible{outline:2px solid #b52939;outline-offset:2px}button[aria-pressed=true]{border-color:#b52939;color:#b52939}#stage{position:relative;width:100%;height:min(74vh,820px);min-height:320px;touch-action:none}canvas{display:block;width:100%;height:100%}#labels{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}#fallback{position:absolute;inset:0;display:grid;place-content:center;text-align:center}#fallback[hidden]{display:none}#fallback img{width:100%;height:100%;max-height:65vh;object-fit:contain}#measurements{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;padding:4px 16px}#measurements span{color:#b52939;background:white;border:1px solid #eee;padding:5px 8px}#help{text-align:center;margin:8px 14px 14px;color:#666;line-height:1.5}a{color:inherit}@media(max-width:480px){.tools{gap:4px;padding:5px}#stage{height:65vh;min-height:310px}button,select{min-height:38px}}