:root{color-scheme:light;font-family:system-ui,-apple-system,sans-serif;color:#233b3a;background:#f4f5ef;line-height:1.8}*{box-sizing:border-box}body{margin:0}main,header,footer{max-width:920px;margin:auto;padding:24px}header{border-bottom:1px solid #c9d4cb}nav{display:flex;gap:20px;flex-wrap:wrap}a{color:#155d50}h1{font-size:clamp(1.8rem,5vw,3rem);line-height:1.4}h2{line-height:1.5}section,.card{background:#fff;border:1px solid #d7dfd7;border-radius:16px;padding:24px;margin:24px 0}.eyebrow{letter-spacing:.12em;color:#526b61}.lead{font-size:1.2rem}.button,button{display:inline-block;background:#176451;color:white;border:0;border-radius:8px;padding:12px 20px;font:inherit;text-decoration:none;cursor:pointer;margin:6px 6px 6px 0}button:disabled{background:#dce2dc;color:#4b5a50;cursor:default}input,select{font:inherit;padding:8px;max-width:100%}label{display:block;margin:12px 0}input[type=checkbox]{width:20px;height:20px;vertical-align:middle}input[type=number]{width:110px}#timer{font-size:3rem;font-variant-numeric:tabular-nums}#notice{font-weight:bold;color:#8c371b;min-height:1.8em}details{margin:16px 0}summary{cursor:pointer;font-weight:bold}dt{font-weight:bold;margin-top:16px}dd{margin-left:0}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.9rem}th,td{padding:10px;border-bottom:1px solid #d7dfd7;text-align:left}caption{text-align:left}small,.muted{color:#52635c}:focus-visible{outline:3px solid #b8641d;outline-offset:4px}[hidden]{display:none!important}@media(max-width:600px){main,header,footer{padding:16px}section{padding:16px}}