:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:#18201c;background:#f5f7f5;font-family:system-ui,sans-serif}body{margin:0}main{max-width:680px;margin:0 auto;padding:28px 20px}header{margin-bottom:24px}h1{margin:0 0 12px;font-size:28px}p{line-height:1.5}section{background:#fff;border:1px solid #d6ded7;border-radius:14px;padding:24px}label{gap:8px;display:grid}input,button{font:inherit;border:1px solid #a7b7aa;border-radius:8px;padding:12px 16px}button{color:#fff;cursor:pointer;background:#16452c;margin-top:12px}button:disabled{opacity:.5;cursor:default}[role=alert]{color:#8c1717}