:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f6f8;
  --color-border: #d6dae0;
  --color-text: #1c2126;
  --color-text-muted: #4b5563;
  --color-accent: #1d4e89;
  --color-accent-contrast: #ffffff;
  --color-pass: #1a6b3c;
  --color-pass-bg: #e6f4ea;
  --color-revision: #8a5a00;
  --color-revision-bg: #fbf0d9;
  --color-fail: #a3242a;
  --color-fail-bg: #fbe8e8;
  --color-reference: #1d4e89;
  --color-judge: #6a3fa0;
  --focus-ring: 3px solid #1d4e89;
  --radius: 6px;
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip-link:focus {
  left: 0;
}

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

button {
  font: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}
.header-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 1rem;
}
.header-inner h1 {
  margin: 0 0 0.25rem;
  font-size: 1.6rem;
}
.subtitle {
  margin: 0;
  color: var(--color-text-muted);
}
.safety-banner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0.5rem 1.25rem 1rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.view-nav {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 10;
}
.view-nav ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  max-width: 72rem;
  margin: 0 auto;
  padding: 0.5rem 1.25rem;
}
.nav-tab {
  background: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.5rem 0.9rem;
  color: var(--color-text);
  font-weight: 600;
}
.nav-tab:hover {
  background: var(--color-bg-alt);
}
.nav-tab[aria-current="page"] {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}

main {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
}

.view h2 {
  margin-top: 0;
}

.view section {
  margin-bottom: 2.5rem;
}

.prose p, p.prose { margin: 0 0 0.75rem; }

.empty-state {
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
}

.task-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
}
.task-card h4 {
  margin: 0 0 0.25rem;
}
.task-card .category-tag {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  border-radius: 999px;
  padding: 0.1rem 0.6rem;
  margin-bottom: 0.5rem;
}
.task-card ul {
  margin: 0.25rem 0 0;
  padding-left: 1.25rem;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.5rem 0 1rem;
}
table.data-table th,
table.data-table td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
table.data-table th {
  background: var(--color-bg-alt);
}

.status-pill {
  display: inline-block;
  border-radius: 999px;
  padding: 0.15rem 0.7rem;
  font-weight: 600;
  font-size: 0.85rem;
  border: 1px solid transparent;
}
.status-pass { background: var(--color-pass-bg); color: var(--color-pass); }
.status-needs-revision { background: var(--color-revision-bg); color: var(--color-revision); }
.status-fail { background: var(--color-fail-bg); color: var(--color-fail); }
.status-pending { background: var(--color-bg-alt); color: var(--color-text-muted); border-color: var(--color-border); }

.delta-pill {
  display: inline-block;
  border-radius: 999px;
  padding: 0.1rem 0.6rem;
  font-weight: 600;
  font-size: 0.8rem;
  margin-left: 0.35rem;
}
.delta-improved { background: var(--color-pass-bg); color: var(--color-pass); }
.delta-worsened { background: var(--color-fail-bg); color: var(--color-fail); }
.delta-same { background: var(--color-bg-alt); color: var(--color-text-muted); }

.assessment-block {
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.assessment-block.reference { border-left: 4px solid var(--color-reference); }
.assessment-block.judge { border-left: 4px solid var(--color-judge); }
.assessment-label {
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  display: block;
  margin-bottom: 0.35rem;
}
.assessment-block.reference .assessment-label { color: var(--color-reference); }
.assessment-block.judge .assessment-label { color: var(--color-judge); }

.annotation {
  border-top: 1px solid var(--color-border);
  padding: 0.5rem 0;
  font-size: 0.95rem;
}
.annotation:first-of-type { border-top: none; }
.annotation .meta {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.output-text {
  white-space: pre-wrap;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
}

.context-packet dt {
  font-weight: 600;
  margin-top: 0.5rem;
}
.context-packet dd {
  margin: 0.15rem 0 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 0.75rem;
}

.metric-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  background: var(--color-bg-alt);
}
.metric-card .metric-value {
  font-size: 1.6rem;
  font-weight: 700;
}
.metric-card .metric-label {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.bar-row {
  display: grid;
  grid-template-columns: 12rem 1fr auto;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.4rem;
}
.bar-track {
  background: var(--color-bg-alt);
  border-radius: 999px;
  overflow: hidden;
  height: 0.9rem;
  border: 1px solid var(--color-border);
}
.bar-fill {
  background: var(--color-accent);
  height: 100%;
}
.bar-fill.clickable {
  cursor: pointer;
}
.bar-row-compact {
  grid-template-columns: 1fr auto;
  margin-bottom: 0;
}

.drilldown-list {
  margin-top: 0.5rem;
  padding-left: 1.25rem;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  background: var(--color-bg-alt);
}
.filter-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.9rem;
}
.filter-bar select {
  font: inherit;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
}
.filter-bar button {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  padding: 0.4rem 0.75rem;
}
.filter-bar button:hover {
  background: var(--color-bg-alt);
}

.source-group-heading {
  margin: 1rem 0 0.5rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}
.source-group-heading:first-child {
  margin-top: 0;
}

.stat-clickable {
  cursor: pointer;
  text-align: left;
  width: 100%;
  font: inherit;
  color: inherit;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}
.stat-clickable:hover {
  background: var(--color-border);
}
tr.stat-clickable {
  display: table-row;
}
tr.stat-clickable td {
  cursor: pointer;
}
tr.stat-clickable:hover {
  background: var(--color-bg-alt);
}

.link-button {
  background: none;
  border: none;
  padding: 0;
  color: var(--color-accent);
  text-decoration: underline;
  cursor: pointer;
  font: inherit;
}

.disagreement-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  border-top: 1px solid var(--color-border);
  padding: 0.5rem 0;
}
.disagreement-row:first-child { border-top: none; }
.disagreement-arrow {
  color: var(--color-text-muted);
}

.finding-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}
.finding-card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}
.finding-badge {
  display: inline-block;
  border-radius: 999px;
  padding: 0.25rem 0.85rem;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.monitoring-heading {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.monitoring-note-card {
  border-style: dashed;
}
.reasoning-step {
  margin-bottom: 1.25rem;
}
.reasoning-step:last-child {
  margin-bottom: 0;
}
.reasoning-step h4 {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.reasoning-step ul {
  margin: 0.25rem 0 0;
  padding-left: 1.25rem;
}
.reasoning-step li {
  margin-bottom: 0.4rem;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}
.site-footer p {
  max-width: 72rem;
  margin: 0 auto;
}

@media (max-width: 640px) {
  .bar-row { grid-template-columns: 1fr; }
}