:root{--ink:#18181b;--muted:#52525b;--line:#d4d4d8;--bg:#f7f7f5;--accent:#0f766e;--err:#b91c1c}
*{box-sizing:border-box}
[hidden]{display:none !important}
body{margin:0;min-height:100vh;background:var(--bg);color:var(--ink);
  font:17px/1.55 ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
main{width:min(36rem,calc(100vw - 2.5rem));margin:0 auto;padding:clamp(2rem,8vh,5rem) 0 3rem}
.mark{margin:0 0 2rem;font-weight:600;letter-spacing:-.01em}
.mark span{color:var(--accent)}
h1{font-size:clamp(1.75rem,4.5vw,2.5rem);line-height:1.15;letter-spacing:-.02em;margin:0 0 1rem}
h2{font-size:1.5rem;letter-spacing:-.01em;margin:0 0 .5rem}
.lede{color:var(--muted);margin:0 0 2rem}
form{display:grid;gap:1.1rem}
.field{display:grid;gap:.35rem}
label{font-size:.9rem;font-weight:600}
input[type=text],input[type=email]{font:inherit;width:100%;padding:.7rem .8rem;border:1px solid var(--line);
  border-radius:.5rem;background:#fff;color:var(--ink)}
input:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
input[aria-invalid=true]{border-color:var(--err)}
.consent{grid-template-columns:auto 1fr;align-items:start;column-gap:.6rem}
.consent input{width:1.15rem;height:1.15rem;margin:.2rem 0 0;accent-color:var(--accent)}
.consent label{font-weight:400}
.consent .error{grid-column:1/-1}
.error{color:var(--err);font-size:.875rem;margin:0}
.error:empty{display:none}
.privacy{color:var(--muted);font-size:.875rem;margin:0}
.hp{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}
button{font:inherit;font-weight:600;padding:.75rem 1rem;border:0;border-radius:.5rem;background:var(--accent);
  color:#fff;cursor:pointer;justify-self:start}
button[disabled]{opacity:.6;cursor:progress}
.success{border-left:3px solid var(--accent);padding:.25rem 0 .25rem 1rem}
.success:focus{outline:none}
footer{margin-top:3rem;color:var(--muted);font-size:.8rem}