/* Large type, high contrast, no external fonts or scripts. */
:root {
  --ink: #111827;
  --muted: #3f4754;
  --page: #f4f5f7;
  --card: #ffffff;
  --line: #6b7280;
  --blue: #0b4a8f;
  --blue-dark: #07335f;
  --green: #0f5c2e;
  --green-bg: #e3f4e8;
  --yellow: #6b4800;
  --yellow-bg: #fff3cc;
  --red: #8f1d14;
  --red-bg: #fde5e2;
  --focus: #ffbf47;
}

* { box-sizing: border-box; }

html { font-size: 125%; }

body {
  margin: 0;
  font-family: Arial, Helvetica, "Segoe UI", sans-serif;
  line-height: 1.5;
  color: var(--ink);
  background: var(--page);
}

main, .site-header, footer {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 1rem;
}

.site-header { padding-top: 1.25rem; }
.site-header h1 { margin: 0; font-size: 2rem; }
.site-header p { margin: 0.25rem 0 1rem; font-size: 1.1rem; color: var(--muted); }

h2 { font-size: 1.3rem; margin: 0 0 0.75rem; }
h3 { font-size: 1.1rem; margin: 0; }
p { margin: 0.5rem 0; }
a { color: var(--blue); }

footer { padding-top: 1.5rem; padding-bottom: 2rem; color: var(--muted); font-size: 0.9rem; }

.skip-link { position: absolute; left: -999rem; }
.skip-link:focus { left: 1rem; top: 1rem; background: var(--card); padding: 0.5rem 1rem; z-index: 10; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

[hidden] { display: none !important; }

:focus-visible,
.visually-hidden:focus-visible + label {
  outline: 4px solid var(--focus);
  outline-offset: 2px;
  box-shadow: 0 0 0 6px var(--ink);
}

/* Mode switch */
.mode-switch { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; margin-bottom: 1rem; }
.mode-switch button {
  font: inherit;
  font-size: 1.2rem;
  font-weight: bold;
  padding: 1rem 0.5rem;
  border: 3px solid var(--blue);
  border-radius: 0.5rem;
  background: var(--card);
  color: var(--blue);
  cursor: pointer;
}
.mode-switch button[aria-selected="true"] { background: var(--blue); color: #fff; }

/* Steps and fields */
.step {
  background: var(--card);
  border: 1px solid #c9ced6;
  border-radius: 0.5rem;
  padding: 1rem 1.25rem 1.25rem;
  margin-bottom: 1rem;
}
.step-number {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  line-height: 2rem;
  text-align: center;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  margin-right: 0.4rem;
}

.field { margin-bottom: 1rem; }
.field-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.field label, legend { display: block; font-weight: bold; font-size: 1.1rem; padding: 0; }
.optional { font-weight: normal; color: var(--muted); }
.hint { color: var(--muted); font-size: 0.95rem; margin: 0.1rem 0 0.35rem; }

input[type="text"] {
  width: 100%;
  font: inherit;
  font-size: 1.15rem;
  padding: 0.65rem 0.75rem;
  border: 2px solid var(--line);
  border-radius: 0.35rem;
  background: #fff;
  color: var(--ink);
}

.choice-row { border: 0; padding: 0; margin: 0 0 1rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.choice-row legend { margin-bottom: 0.35rem; }
.choice {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  padding: 0.6rem 1rem;
  border: 2px solid var(--line);
  border-radius: 0.35rem;
  background: #fff;
  cursor: pointer;
}
.choice input { width: 1.4rem; height: 1.4rem; margin: 0; }
.choice:has(input:checked) { border-color: var(--blue); background: #e6effa; font-weight: bold; }

.drop-zone {
  border: 3px dashed var(--line);
  border-radius: 0.5rem;
  padding: 1rem;
  text-align: center;
  background: #fafbfc;
}
.drop-zone.is-over { border-color: var(--blue); background: #e6effa; }
.file-name { font-weight: bold; overflow-wrap: anywhere; }
.picture-buttons { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; }
.camera { margin-top: 0.75rem; }
.camera video { display: block; width: 100%; max-height: 28rem; background: #000; border: 1px solid var(--line); margin-bottom: 0.5rem; }
.picture-list { list-style: none; display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; padding: 0; margin: 0.75rem 0 0; }
.picture-list li { width: 11rem; background: #fff; border: 1px solid var(--line); border-radius: 0.35rem; padding: 0.5rem; }
.picture-list img { display: block; width: 100%; height: 9rem; object-fit: contain; background: #fafbfc; }
.picture-list .picture-name { font-size: 0.9rem; margin: 0.35rem 0; overflow-wrap: anywhere; }
.picture-list .button { width: 100%; }
.optional-group { border: 2px dashed var(--line); border-radius: 0.5rem; padding: 0.75rem 1rem 0.25rem; margin: 1rem 0 0; }
.optional-group legend { padding: 0 0.35rem; }
.check-where { font-size: 0.95rem; color: var(--muted); margin: 0.2rem 0; }

/* Buttons */
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1rem 0; }
.button {
  display: inline-block;
  font: inherit;
  font-size: 1.2rem;
  font-weight: bold;
  padding: 0.85rem 1.5rem;
  border-radius: 0.5rem;
  border: 3px solid var(--blue);
  cursor: pointer;
  text-align: center;
}
.button-primary { background: var(--blue); color: #fff; min-width: 16rem; }
.button-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.button-secondary { background: #fff; color: var(--blue); }
.button-secondary:hover { background: #e6effa; }
.button:disabled { opacity: 0.55; cursor: not-allowed; }
.button-small { font-size: 1rem; padding: 0.4rem 0.9rem; border-width: 2px; }

/* Messages */
.message { padding: 0.9rem 1rem; border-radius: 0.5rem; font-size: 1.1rem; font-weight: bold; margin: 1rem 0; white-space: pre-line; }
.message-error { background: var(--red-bg); color: var(--red); border: 3px solid var(--red); }
.busy { padding: 1rem; font-size: 1.2rem; font-weight: bold; background: #e6effa; border: 3px solid var(--blue); border-radius: 0.5rem; }

/* Results */
.verdict { padding: 1rem 1.25rem; border-radius: 0.5rem; border: 3px solid; margin: 1rem 0; }
.verdict h2 { font-size: 1.6rem; margin: 0; }
.verdict p { margin: 0.25rem 0 0; }

.is-match { background: var(--green-bg); color: var(--green); border-color: var(--green); }
.is-review { background: var(--yellow-bg); color: var(--yellow); border-color: var(--yellow); }
.is-mismatch, .is-error { background: var(--red-bg); color: var(--red); border-color: var(--red); }

.check {
  background: var(--card);
  border: 1px solid #c9ced6;
  border-left: 0.75rem solid;
  border-radius: 0.5rem;
  padding: 0.85rem 1rem;
  margin-bottom: 0.75rem;
  color: var(--ink);
}
.check.is-match { background: var(--card); border-left-color: var(--green); }
.check.is-review { background: var(--card); border-left-color: #b98900; }
.check.is-mismatch { background: var(--card); border-left-color: var(--red); }
.check-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem; }
.check-reason { font-size: 1.1rem; margin: 0.4rem 0; }
.check-values { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 1rem; margin: 0.5rem 0 0; }
.check-values div { background: var(--page); border-radius: 0.35rem; padding: 0.5rem 0.75rem; overflow-wrap: anywhere; }
.check-values dt { font-size: 0.9rem; color: var(--muted); font-weight: bold; }
.check-values dd { margin: 0; font-size: 1.05rem; }
.check-parts { margin: 0.5rem 0 0; padding-left: 0; list-style: none; }
.check-parts li { margin: 0.25rem 0; }

.badge {
  display: inline-block;
  font-weight: bold;
  font-size: 1rem;
  padding: 0.2rem 0.7rem;
  border-radius: 1rem;
  border: 2px solid;
  white-space: nowrap;
}

details { margin: 1rem 0; }
summary { cursor: pointer; font-weight: bold; color: var(--blue); padding: 0.4rem 0; }
pre { white-space: pre-wrap; background: var(--card); border: 1px solid #c9ced6; padding: 0.75rem; border-radius: 0.35rem; font-size: 0.95rem; }

/* Batch */
progress { display: block; width: 100%; height: 2rem; margin: 0.4rem 0 1rem; }
#batch-progress-text { font-weight: bold; font-size: 1.1rem; }
.summary { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }
.summary .badge { font-size: 1.1rem; padding: 0.4rem 1rem; }
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid #c9ced6; border-radius: 0.5rem; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 0.6rem 0.75rem; border-bottom: 1px solid #c9ced6; vertical-align: top; overflow-wrap: anywhere; }
th { background: #e9ecf0; }
.detail-cell { background: var(--page); }

@media (max-width: 40rem) {
  html { font-size: 112.5%; }
  .field-pair, .check-values { grid-template-columns: 1fr; }
  .button-primary { width: 100%; min-width: 0; }
  .actions .button { flex: 1 1 100%; }
}