html, body { margin: 0; }
body {
  background: #ece8d8;
  color: #2e2c18;
  font: 16px/1.45 "Segoe UI", Tahoma, sans-serif;
}
main { max-width: 38rem; margin: 0 auto; padding: 3.3rem 1.15rem 4rem; }
h1 { font-family: Georgia, serif; font-weight: 500; margin: 0 0 1.1rem; }
label { display: block; font-size: 0.82rem; color: #6a6648; margin-bottom: 0.8rem; }
textarea {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  box-sizing: border-box;
  font: 13px/1.45 ui-monospace, Consolas, monospace;
  background: #f7f4ea;
  border: 1px solid #2e2c18;
  padding: 0.6rem;
  resize: vertical;
}
.row { display: flex; gap: 0.45rem; margin: 0 0 0.9rem; }
button {
  font: inherit;
  background: #2e2c18;
  color: #ece8d8;
  border: 0;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
}
#err { color: #8a3b1c; }