:root{font-family:system-ui,sans-serif;color:#193f35;background:#f5f7f1}body{margin:0;padding:clamp(20px,6vw,80px)}main{max-width:740px;margin:8vh auto;padding:clamp(24px,5vw,56px);background:white;border:1px solid #d7e1d3;border-radius:24px}.brand{font-weight:750;letter-spacing:.02em}h1{font-size:clamp(28px,4vw,44px);line-height:1.15}p{font-size:18px;line-height:1.7}.note{color:#52675e;font-size:16px}a,button{background:#225b4b;color:white;border:0;border-radius:10px;padding:14px 22px;font:inherit;text-decoration:none;display:inline-block}a:focus-visible,button:focus-visible{outline:3px solid #c88c2e;outline-offset:4px}