/* Mobile-first. Staff run this on a phone; the desk is the exception. */
:root {
  color-scheme: light dark;
  --gap: 0.75rem;
  --ok: #158a45;
  --bad: #c22a2a;
  --muted: color-mix(in srgb, currentColor 55%, transparent);
  --line: color-mix(in srgb, currentColor 18%, transparent);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 1rem;
  max-width: 44rem;
  margin-inline: auto;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

h1 { font-size: 1.25rem; margin: 0; }
h2 { font-size: 1.05rem; margin: 0 0 var(--gap); }
.sub, .hint { color: var(--muted); font-size: 0.875rem; margin: 0.25rem 0 1rem; }
.warn { color: var(--bad); font-weight: 600; }

section {
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  padding: 1rem;
  margin-bottom: 1rem;
}

label { display: block; margin-bottom: var(--gap); font-size: 0.875rem; }

input, select {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.6rem;
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: transparent;
  color: inherit;
}

button {
  font: inherit;
  padding: 0.65rem 1rem;
  border: 1px solid transparent;
  border-radius: 0.4rem;
  color: Canvas;
  background: CanvasText;
  cursor: pointer;
  min-height: 44px; /* thumb-sized */
}
button.secondary, button.link { background: transparent; color: inherit; border-color: var(--line); }
button.link { border: none; text-decoration: underline; padding: 0.25rem; min-height: auto; }
button[disabled] { opacity: 0.5; cursor: not-allowed; }

.row { display: flex; gap: var(--gap); flex-wrap: wrap; align-items: end; }
.row > label { flex: 1 1 8rem; margin-bottom: 0; }
.row.between { justify-content: space-between; align-items: center; }

output { display: block; margin-top: var(--gap); font-size: 0.9rem; }
output.err { color: var(--bad); }
output.ok { color: var(--ok); }

pre#answer {
  white-space: pre-wrap;
  word-break: break-word;
  font: 0.9rem/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  border-top: 1px solid var(--line);
  margin-top: var(--gap);
  padding-top: var(--gap);
  min-height: 2rem;
}
pre#answer:empty { border: none; padding: 0; }

code.pick, .pick { user-select: all; -webkit-user-select: all; }
code#totp-secret {
  display: block;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  padding: 0.6rem;
  border: 1px dashed var(--line);
  border-radius: 0.4rem;
  word-break: break-all;
}
#backup-codes { font-family: ui-monospace, monospace; }
#qr { width: 100%; max-width: 256px; height: auto; image-rendering: pixelated; background: #fff; }
#preview { max-width: 100%; border-radius: 0.4rem; margin: var(--gap) 0; }

table { border-collapse: collapse; width: 100%; font-size: 0.85rem; margin-top: var(--gap); }
th, td { text-align: left; padding: 0.35rem 0.5rem; border-bottom: 1px solid var(--line); }
th { font-weight: 600; }
td.y { color: var(--ok); }
td.n { color: var(--bad); }
caption { text-align: left; font-weight: 600; padding-bottom: 0.35rem; }