html, body { margin: 0; }
body {
  background: #1a150c;
  color: #f0d9a0;
  font: 16px/1.45 "Segoe UI", Tahoma, sans-serif;
}
main { max-width: 44rem; margin: 0 auto; padding: 3.5rem 1.1rem 4rem; }
h1 { font-weight: 600; letter-spacing: 0.12em; margin: 0 0 1.1rem; }
textarea {
  width: 100%;
  min-height: 9rem;
  box-sizing: border-box;
  font: 14px/1.45 ui-monospace, Consolas, monospace;
  background: #241c10;
  color: #f6e6c2;
  border: 1px solid #5c4a22;
  padding: 0.7rem;
  resize: vertical;
}
.row { display: flex; gap: 0.45rem; margin: 0.7rem 0; flex-wrap: wrap; }
button {
  font: inherit;
  background: #d4a017;
  color: #1a150c;
  border: 0;
  padding: 0.5rem 0.95rem;
  cursor: pointer;
}
button.ghost { background: transparent; color: #d4a017; outline: 1px solid #d4a017; }
#err { color: #e08a6a; }
#b { min-height: 11rem; }