:root{color-scheme:light;--ink:#18251e;--muted:#526158;--green:#216343;--line:#d7dfd9;--paper:#fff;--wash:#f3f7f4}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;line-height:1.8}header,main,footer{width:min(100% - 40px,720px);margin-inline:auto}header{display:flex;align-items:center;justify-content:space-between;padding-block:28px;border-bottom:1px solid var(--line)}header a{color:var(--ink);font-weight:750;text-decoration:none;font-size:19px}header span{font-size:13px;color:var(--muted)}main{padding-block:48px 36px}h1{font-size:clamp(28px,5.5vw,42px);line-height:1.5;letter-spacing:-.025em;margin:0 0 20px;font-weight:750}.intro{color:var(--muted);margin:0 0 32px;font-size:16px}.checks{margin:0 0 40px;border-top:1px solid var(--line)}.checks div{padding:18px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr 1.25fr;gap:16px}dt{color:var(--muted);font-size:14px}dd{margin:0;font-weight:600;overflow-wrap:anywhere}h2{font-size:22px;margin:0 0 12px;line-height:1.5}ol{padding-left:1.5em;margin:0 0 24px}li+li{margin-top:6px}.actions{display:flex;gap:12px;flex-wrap:wrap}button{font:inherit;font-weight:650;cursor:pointer;padding:14px 20px;min-height:52px;border:1px solid var(--green);border-radius:6px;color:white;background:var(--green)}button:hover{background:#184d34}button.secondary{color:var(--green);background:white}button.secondary:hover{background:var(--wash)}button:focus-visible,a:focus-visible{outline:3px solid #a86b00;outline-offset:4px}#result{min-height:1.8em;color:var(--green);font-weight:600;margin:16px 0 0}#result.error{color:#a12621}.note{font-size:14px;color:var(--muted);margin:30px 0 0;max-width:65ch}footer{border-top:1px solid var(--line);padding-block:20px;display:flex;justify-content:space-between;color:var(--muted);font-size:12px}@media(max-width:480px){main{padding-top:32px}.checks div{display:block}dd{margin-top:6px}.actions{display:grid}button{width:100%}header{padding-block:20px}}