body{margin:0;font:16px/1.55 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1d1f23;background:#fafafa}
main{max-width:640px;margin:0 auto;padding:40px 20px}
h1{font-size:1.8em;line-height:1.2;margin:0 0 .5em}
h2{font-size:1.15em;margin-top:1.6em}
.lead{font-size:1.1em}
.note,.small{color:#555;font-size:.92em}
form{margin-top:1.5em;padding:20px;background:#fff;border:1px solid #ddd;border-radius:8px}
label{display:block;margin-bottom:14px;font-weight:600}
label input[type=url],label input[type=text],label input[type=email]{display:block;width:100%;box-sizing:border-box;margin-top:4px;padding:9px;font:inherit;font-weight:400;border:1px solid #bbb;border-radius:5px}
label.check{font-weight:400}
button{font:inherit;font-weight:600;padding:10px 18px;background:#1f6feb;color:#fff;border:0;border-radius:6px;cursor:pointer}
footer{max-width:640px;margin:0 auto;padding:20px;color:#777;font-size:.85em}