:root{font-family:system-ui,sans-serif;background:#f5f0e4;color:#24483c}*{box-sizing:border-box}body{margin:0}main{max-width:1440px;margin:auto;padding:18px}header{display:flex;align-items:center;justify-content:space-between;gap:16px}h1{font-family:Georgia,serif;font-size:clamp(25px,3vw,40px);margin:4px 0}small{font-size:10px;letter-spacing:2px;font-weight:700}p{line-height:1.5}header p{margin:4px 0;color:#668477}.toolbar{display:flex;gap:8px;flex-wrap:wrap}button,select{font:inherit;color:inherit;border:1px solid #bacdbd;background:#fffdf6;border-radius:10px;padding:10px 14px;cursor:pointer;min-height:44px}button:hover{background:#e2efd7}button:disabled{opacity:.45;cursor:default}button:focus-visible,select:focus-visible,canvas:focus-visible{outline:3px solid #e5a14e;outline-offset:3px}.layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:16px}canvas{display:block;width:100%;height:auto;border-radius:18px;border:1px solid #d6ddce;touch-action:none;background:#ecf2df}aside{background:#fffcf5;border:1px solid #e0dfd1;border-radius:18px;padding:16px}#controls{display:grid;grid-template-columns:1fr 1fr;gap:8px}#controls button{font-size:13px;padding:9px 5px}#status{padding:10px 14px;background:#e4ecd6;border-radius:12px;min-height:44px}#summary{font-weight:700;font-size:16px;white-space:pre-line}#help{font-size:13px}#notice{background:#fff0d3;color:#8b432d;font-size:13px}#notice:empty{display:none}#next{background:#2c735a;color:#fff;width:100%;margin-top:15px}footer{font-size:11px;text-align:center;color:#6c8277;margin-top:15px}#loading{text-align:center;padding:40px}dialog{border:0;border-radius:18px;padding:25px;max-width:90vw}dialog::backdrop{background:#1e392fcc}[hidden]{display:none!important}@media(max-width:840px){.layout{grid-template-columns:1fr}aside{padding:12px}#controls{grid-template-columns:repeat(4,1fr)}header{flex-wrap:wrap}main{padding:10px}#help{margin-bottom:0}#summary{margin:2px 0 10px}}@media(max-width:430px){#controls{grid-template-columns:repeat(3,1fr)}button{padding:9px}.toolbar{gap:5px}}