:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --border: #d8d8d8;
  --muted: #6b6b6b;
  --pass: #1a7f37;
  --pass-bg: #e6f4ea;
  --fail: #b3261e;
  --fail-bg: #fbe7e5;
  --pending-bg: #eeeeee;
  --card-bg: #f7f7f8;
  --audit-bg: #f2f2f2;
  --accent: #3b5bfd;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #16171a;
    --fg: #ececec;
    --border: #3a3b3f;
    --muted: #a0a0a0;
    --pass: #58d68d;
    --pass-bg: #133622;
    --fail: #f2867a;
    --fail-bg: #3a1a17;
    --pending-bg: #2b2c30;
    --card-bg: #1f2023;
    --audit-bg: #1c1d20;
    --accent: #8ba3ff;
  }
}

:root[data-theme="dark"] {
  --bg: #16171a;
  --fg: #ececec;
  --border: #3a3b3f;
  --muted: #a0a0a0;
  --pass: #58d68d;
  --pass-bg: #133622;
  --fail: #f2867a;
  --fail-bg: #3a1a17;
  --pending-bg: #2b2c30;
  --card-bg: #1f2023;
  --audit-bg: #1c1d20;
  --accent: #8ba3ff;
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
  line-height: 1.5;
}

.site-header h1 {
  font-size: 1.4rem;
  margin-bottom: 0.15rem;
}

.byline {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 1.5rem;
}

.site-footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
}

h2 { margin-top: 0; }

label {
  display: block;
  font-weight: 600;
  margin: 1rem 0 0.25rem;
}

textarea, input[type="file"] {
  width: 100%;
  font-family: ui-monospace, "Consolas", monospace;
  font-size: 0.85rem;
  padding: 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--fg);
}

.hint {
  color: var(--muted);
  font-size: 0.8rem;
  margin: 0.35rem 0 0;
}

.small-print {
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 1.5rem;
}

button {
  margin-top: 1.25rem;
  padding: 0.6rem 1.25rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  font-size: 0.95rem;
  cursor: pointer;
}

button:hover { filter: brightness(1.05); }

/* Timeline */
#timeline {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

#timeline li {
  border-left: 3px solid var(--border);
  padding: 0.5rem 0.9rem;
  margin-bottom: 0.6rem;
  background: var(--card-bg);
  border-radius: 0 6px 6px 0;
}

#timeline .detail {
  font-family: ui-monospace, "Consolas", monospace;
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

.extract-table {
  margin-top: 0.4rem;
  font-family: ui-monospace, "Consolas", monospace;
  font-size: 0.82rem;
  border-collapse: collapse;
}

.extract-table th {
  text-align: left;
  color: var(--muted);
  padding: 0.1rem 0.6rem 0.1rem 0;
  font-weight: 500;
}

.extract-table td { padding: 0.1rem 0; }

/* Status pills */
.pill {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.pill-pass { background: var(--pass-bg); color: var(--pass); }
.pill-fail { background: var(--fail-bg); color: var(--fail); }
.pill-pending { background: var(--pending-bg); color: var(--muted); }

/* Approval card */
#approval-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}

.approval-heading {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.badge {
  display: inline-block;
  background: var(--pending-bg);
  color: var(--fg);
  border-radius: 4px;
  padding: 0.1rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.approval-message {
  white-space: pre-wrap;
}

.approval-actions button {
  margin-top: 0.5rem;
  margin-right: 0.5rem;
  opacity: 0.5;
  cursor: not-allowed;
  background: var(--pending-bg);
  border-color: var(--border);
  color: var(--muted);
}

.approval-caption {
  color: var(--muted);
  font-size: 0.78rem;
  margin: 0.4rem 0 0;
}

/* Audit block */
#audit-block {
  font-family: ui-monospace, "Consolas", monospace;
  font-size: 0.78rem;
  background: var(--audit-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  overflow-x: auto;
  white-space: pre;
}