:root {
  color-scheme: light dark;
  --fg: #16181d;
  --muted: #5b6270;
  --line: #d7dbe2;
  --bg: #fbfcfd;
  --ok: #17603a;
  --bad: #9a1c1c;
}
@media (prefers-color-scheme: dark) {
  :root { --fg:#e8eaf0; --muted:#98a1b3; --line:#333a47; --bg:#111318; --ok:#5fd39a; --bad:#ff8a8a; }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 46rem; margin: 0 auto; padding: 3rem 1.25rem 5rem; }
h1 { font-size: 1.5rem; margin: 0 0 .5rem; }
h2 { font-size: 1.1rem; margin: 0 0 .5rem; }
.lede { color: var(--muted); margin: 0 0 2rem; }

dl { display: grid; grid-template-columns: minmax(9rem, auto) 1fr; gap: .55rem 1.25rem; margin: 0 0 1.5rem; }
dt { color: var(--muted); }
dd { margin: 0; overflow-wrap: anywhere; }
dd ul { margin: 0; padding-left: 1.1rem; }

#f-nonce, #f-digest, pre, code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .85em; }
pre { white-space: pre-wrap; overflow-wrap: anywhere; border: 1px solid var(--line); border-radius: .4rem; padding: .75rem; background: transparent; }
details { margin-bottom: 1.5rem; }
summary { cursor: pointer; color: var(--muted); }

button {
  font: inherit;
  font-weight: 600;
  padding: .7rem 1.4rem;
  border: 1px solid var(--fg);
  border-radius: .4rem;
  background: var(--fg);
  color: var(--bg);
  cursor: pointer;
}
button[disabled] { opacity: .45; cursor: progress; }

label { display: block; color: var(--muted); margin-bottom: .3rem; }
input {
  font: inherit;
  width: 100%;
  padding: .55rem .7rem;
  margin-bottom: .9rem;
  border: 1px solid var(--line);
  border-radius: .4rem;
  background: transparent;
  color: inherit;
}

section { border-top: 1px solid var(--line); padding-top: 1.5rem; }
#status { margin-top: 1.5rem; font-weight: 600; min-height: 1.5rem; }
#status[data-tone="ok"] { color: var(--ok); }
#status[data-tone="bad"] { color: var(--bad); }