:root {
  --paper: #f4f1ea;
  --ink: #1c1b19;
  --muted: #6b665c;
  --line: #d6d0c3;
  --good: #2f6b3a;
  --bad: #9a2f22;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #161513; --ink: #e8e4da; --muted: #9a9486; --line: #34312c; --good: #7fbf8a; --bad: #e08a7c; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 18px/1.55 Georgia, "Times New Roman", serif;
}
main { max-width: 640px; margin: 0 auto; padding: 48px 16px 96px; }
h1 { font-size: 2.4rem; font-weight: normal; letter-spacing: 0.04em; margin: 0 0 8px; }
h2 { font-size: 1.3rem; font-weight: normal; border-bottom: 1px solid var(--line); padding-bottom: 6px; margin-top: 48px; }
.lede { color: var(--muted); font-style: italic; }
ol { padding-left: 1.4em; }
#questions li { margin-bottom: 18px; }
#questions label { display: block; margin-bottom: 6px; }
input {
  font: inherit; font-family: ui-monospace, Consolas, monospace;
  width: 100%; padding: 8px 10px; background: transparent; color: var(--ink);
  border: 1px solid var(--line); border-radius: 2px;
}
input:focus { outline: 2px solid var(--ink); outline-offset: 1px; }
input:disabled { color: var(--good); border-color: var(--good); }
button {
  font: inherit; padding: 8px 18px; cursor: pointer;
  background: var(--ink); color: var(--paper); border: 0; border-radius: 2px;
}
button:disabled { opacity: 0.5; cursor: wait; }
.row { display: flex; gap: 8px; }
.row input { flex: 1; }
.status { min-height: 1.5em; color: var(--muted); }
.status.bad, .note.bad { color: var(--bad); }
.status.good { color: var(--good); }
.note { font-size: 0.9rem; margin-top: 4px; }
.seal-list { list-style: none; padding: 0; }
.seal-list li { border-left: 2px solid var(--line); padding: 4px 0 4px 16px; margin-bottom: 20px; }
.seal-list .num { font-size: 0.85rem; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }
.seal-list blockquote { margin: 6px 0; font-style: italic; }
.seal-list .broken { font-family: ui-monospace, Consolas, monospace; color: var(--good); }
progress { width: 100%; height: 14px; accent-color: var(--ink); }
.code { font: 1.6rem ui-monospace, Consolas, monospace; letter-spacing: 0.06em; }