:root {
  --bg: #faf9f7;
  --fg: #1c1b1a;
  --muted: #6f6b66;
  --border: #e2ddd6;
  --card: #ffffff;
  --accent: #1a6c8f;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;

  --full-bg: #e7f4ea;
  --full-fg: #18643a;
  --full-bd: #9cceb1;
  --qual-bg: #fdf3e0;
  --qual-fg: #8a5a12;
  --qual-bd: #e9c98c;
  --fail-bg: #fbe9e9;
  --fail-fg: #97241f;
  --fail-bd: #e6a9a6;
  --error-bg: #eeecea;
  --error-fg: #5a564f;
  --error-bd: #d6d0c7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1b1a;
    --fg: #ece8e1;
    --muted: #a39e96;
    --border: #36332f;
    --card: #232120;
    --accent: #6cb6d4;
    --full-bg: #16301f;
    --full-fg: #8fd6a8;
    --qual-bg: #33260f;
    --qual-fg: #e7c486;
    --fail-bg: #361917;
    --fail-fg: #e3a39e;
    --error-bg: #2a2824;
    --error-fg: #b8b2a8;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  line-height: 1.55;
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

a { color: var(--accent); }

code, .mono {
  font-family: var(--mono);
  font-size: 0.9em;
}

.back {
  display: inline-block;
  margin-bottom: 1rem;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.9rem;
}

h1 { font-size: 1.7rem; margin: 0 0 0.5rem; }

.lede { color: var(--fg); margin: 0 0 1.25rem; }

.privacy {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  background: color-mix(in srgb, var(--accent) 8%, var(--card));
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--border));
  border-radius: 10px;
  padding: 0.85rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}
.privacy .lock { font-size: 1.2rem; line-height: 1.4; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
}

.tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}
.tab {
  appearance: none;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.5rem 0.75rem;
  font: inherit;
  color: var(--muted);
  cursor: pointer;
}
.tab[aria-selected="true"] {
  color: var(--fg);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.field-label {
  display: block;
  font-weight: 600;
  margin: 1rem 0 0.4rem;
}
.field-label .hint, .hint {
  display: block;
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--muted);
}

textarea {
  width: 100%;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  resize: vertical;
}
textarea:focus { outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent); outline-offset: 1px; }

.anchor-box { margin-top: 1rem; }
.anchor-box summary { cursor: pointer; color: var(--muted); }
.anchor-box .hint { margin: 0.5rem 0; }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  margin-top: 1.1rem;
}

button.primary, button.ghost {
  font: inherit;
  border-radius: 8px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  border: 1px solid var(--border);
}
button.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 600;
}
button.primary:disabled { opacity: 0.55; cursor: progress; }
button.ghost { background: transparent; color: var(--fg); }
button.ghost:hover, button.primary:not(:disabled):hover { filter: brightness(0.96); }

.status { color: var(--muted); font-size: 0.9rem; }

/* ---- result ---- */
.result { margin-top: 1.5rem; }

.banner {
  border-radius: 12px;
  border: 1px solid;
  padding: 1rem 1.2rem;
  margin-bottom: 1rem;
}
.banner h2 { margin: 0 0 0.25rem; font-size: 1.25rem; }
.banner p { margin: 0; }

.banner.full   { background: var(--full-bg);  color: var(--full-fg);  border-color: var(--full-bd); }
.banner.qualified { background: var(--qual-bg); color: var(--qual-fg); border-color: var(--qual-bd); }
.banner.fail   { background: var(--fail-bg);  color: var(--fail-fg);  border-color: var(--fail-bd); }
.banner.error  { background: var(--error-bg); color: var(--error-fg); border-color: var(--error-bd); }

.banner .verdict-tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid currentColor;
  margin-bottom: 0.5rem;
}

.rings {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
@media (max-width: 620px) { .rings { grid-template-columns: 1fr; } }

.ring {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  background: var(--card);
}
.ring h3 { margin: 0 0 0.35rem; font-size: 0.95rem; }
.ring .ring-state { font-weight: 700; }
.ring .ring-state.ok   { color: var(--full-fg); }
.ring .ring-state.warn { color: var(--qual-fg); }
.ring .ring-state.bad  { color: var(--fail-fg); }
.ring .ring-state.na   { color: var(--muted); }
.ring p { margin: 0.3rem 0 0; font-size: 0.9rem; color: var(--muted); }

table.receipts {
  width: 100%;
  border-collapse: collapse;
  margin: 0.5rem 0 1rem;
  font-size: 0.85rem;
}
table.receipts th, table.receipts td {
  text-align: left;
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid var(--border);
}
table.receipts th { color: var(--muted); font-weight: 600; }
table.receipts td.id { font-family: var(--mono); font-size: 0.8rem; word-break: break-all; }
.check { color: var(--full-fg); font-weight: 700; }
.cross { color: var(--fail-fg); font-weight: 700; }

.notes { margin: 0.5rem 0; padding-left: 1.1rem; }
.notes li { font-size: 0.9rem; color: var(--muted); }

.detail {
  font-family: var(--mono);
  font-size: 0.82rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.page-foot {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--muted);
}
.page-foot a { color: var(--accent); }