:root,
html[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f0e8;
  --bg-deep: #ebe6db;
  --fg: #1b1822;
  --muted: #534d5c;
  --card: #fffdf8;
  --accent: #8a2e58;
  --accent-fg: #fffdf8;
  --accent-soft: #f3e2ea;
  --link: #7a2750;
  --danger: #8f2436;
  --warn: #7a4e00;
  --ok: #1d5a46;
  --border: #d4cdc0;
  --shadow: 0 1px 2px rgb(27 24 34 / 6%);
  --critical: #8f2436;
  --high: #8a4a12;
  --medium: #6a5a12;
  --low: #2a4f63;
  --focus: #8a2e58;
  --header-rule: #c9b8c4;
  font-family: "Segoe UI", "Helvetica Neue", system-ui, sans-serif;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #12182a;
  --bg-deep: #0c1020;
  --fg: #eceaf3;
  --muted: #b8b3c4;
  --card: #1a2034;
  --accent: #d889ae;
  --accent-fg: #140c14;
  --accent-soft: #2d2238;
  --link: #e4a3c2;
  --danger: #f0b6b8;
  --warn: #e6c48a;
  --ok: #9ec9b6;
  --border: #343c55;
  --shadow: none;
  --critical: #f0b6b8;
  --high: #e6c48a;
  --medium: #d4c98a;
  --low: #9bb8c9;
  --focus: #e4a3c2;
  --header-rule: #3d3150;
}

@media (prefers-color-scheme: dark) {
  html[data-theme="system"] {
    color-scheme: dark;
    --bg: #12182a;
    --bg-deep: #0c1020;
    --fg: #eceaf3;
    --muted: #b8b3c4;
    --card: #1a2034;
    --accent: #d889ae;
    --accent-fg: #140c14;
    --accent-soft: #2d2238;
    --link: #e4a3c2;
    --danger: #f0b6b8;
    --warn: #e6c48a;
    --ok: #9ec9b6;
    --border: #343c55;
    --shadow: none;
    --critical: #f0b6b8;
    --high: #e6c48a;
    --medium: #d4c98a;
    --low: #9bb8c9;
    --focus: #e4a3c2;
    --header-rule: #3d3150;
  }
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg-deep);
}

body {
  margin: 0 auto;
  max-width: 76rem;
  padding: 1.5rem 1.5rem 3.5rem;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  min-height: 100vh;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  transform: translateY(-180%);
  z-index: 4;
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.45rem 0.7rem;
}

.skip-link:focus {
  transform: none;
}

.site-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.85rem 1.5rem;
  align-items: start;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--header-rule);
}

.brand-lockup {
  min-width: 0;
}

.brand-name {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-link {
  color: var(--fg);
  text-decoration: none;
}

.brand-link:hover,
.brand-link:focus-visible {
  color: var(--link);
}

.eyebrow {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--muted);
  margin: 0.35rem 0 0;
}

.product-name {
  margin: 0.15rem 0 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.header-tools {
  justify-self: end;
}

.theme-switch {
  display: inline-flex;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 0.15rem;
}

.theme-switch button {
  background: transparent;
  color: var(--fg);
  border: 0;
  padding: 0.35rem 0.65rem;
  font-size: 0.82rem;
}

.theme-switch button[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--fg);
  font-weight: 650;
  box-shadow: inset 0 0 0 1px var(--accent);
}

.header-copy {
  grid-column: 1 / -1;
}

h1 {
  margin: 0 0 0.55rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  font-weight: 600;
  line-height: 1.2;
}

h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.8rem;
}

.lede,
footer,
.meta-list,
#recent-note,
#changes-note,
#catalog-note,
#catalog-status,
#provenance p,
.empty-state,
.detail-label {
  color: var(--muted);
}

.page-nav {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.35rem;
  margin: 0.15rem 0 0;
}

.page-nav a {
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 0.28rem 0.65rem;
}

.page-nav a:hover,
.page-nav a:focus-visible {
  border-color: var(--accent);
}

.banner {
  border: 1px solid var(--border);
  background: var(--card);
  padding: 0.95rem 1.05rem;
  margin: 1.4rem 0;
  box-shadow: var(--shadow);
}

.banner-label {
  display: inline-block;
  margin-right: 0.4rem;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.banner.ok {
  border-color: var(--ok);
}

.banner.ok .banner-label {
  color: var(--ok);
}

.banner.stale,
.banner.warn {
  border-color: var(--warn);
}

.banner.stale .banner-label,
.banner.warn .banner-label {
  color: var(--warn);
}

.banner.unavailable,
.banner.failed {
  border-color: var(--danger);
}

.banner.unavailable .banner-label,
.banner.failed .banner-label {
  color: var(--danger);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 0.85rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 1rem 1.05rem 1.05rem;
  box-shadow: var(--shadow);
}

.card h3 {
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
  font-weight: 650;
}

.card .value {
  margin: 0.4rem 0 0;
  font-size: 1.2rem;
  line-height: 1.3;
  font-weight: 650;
}

.card .hint {
  margin: 0.4rem 0 0;
  font-size: 0.86rem;
  font-weight: 400;
  color: var(--muted);
}

.card-fresh {
  border-color: var(--ok);
}

.card-fresh .value {
  color: var(--ok);
}

.card-stale .value,
.card-invalid .value,
.card-warn .value {
  color: var(--warn);
}

.card-stale,
.card-invalid,
.card-warn {
  border-color: var(--warn);
}

.pill {
  display: inline-block;
  border: 1px solid var(--border);
  background: var(--accent-soft);
  padding: 0.12rem 0.45rem;
  font-size: 0.82rem;
}

.pill.ok {
  color: var(--ok);
  border-color: var(--ok);
}

.pill.warn {
  color: var(--warn);
  border-color: var(--warn);
}

.pill.danger {
  color: var(--danger);
  border-color: var(--danger);
}

.severity-critical {
  color: var(--critical);
}

.severity-high {
  color: var(--high);
}

.severity-medium {
  color: var(--medium);
}

.severity-low {
  color: var(--low);
}

.severity-text {
  display: inline-block;
  margin-left: 0.3rem;
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

section {
  margin: 2.25rem 0;
}

.meta-list {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.45rem 1rem;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 52rem;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 0.7rem 0.8rem;
  border-bottom: 1px solid var(--border);
}

thead th {
  position: sticky;
  top: 0;
  background: var(--card);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.product-name {
  color: var(--muted);
  font-size: 0.92rem;
}

.catalog-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0.85rem 1rem;
  margin: 1rem 0;
}

.catalog-controls label {
  display: block;
  font-size: 0.82rem;
  margin-bottom: 0.25rem;
}

input,
select,
button {
  font: inherit;
  color: inherit;
}

input,
select {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  padding: 0.5rem 0.6rem;
}

button {
  background: var(--accent);
  color: var(--accent-fg);
  border: 0;
  padding: 0.5rem 0.85rem;
  cursor: pointer;
}

button:disabled,
input:disabled,
select:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.85rem;
}

a[href] {
  color: var(--link);
}

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

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

details {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 0.65rem 0.8rem;
}

details > summary {
  cursor: pointer;
  font-weight: 650;
}

details .meta-list,
details .diff-table {
  margin-top: 0.7rem;
}

.diff-table {
  min-width: 28rem;
}

#changes h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1rem;
}

.change-summary {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
}

#changes > details {
  margin: 0.75rem 0;
}

.empty-state {
  margin: 0;
}

.record-details {
  font-size: 0.92rem;
}

#technical-details,
#signals details {
  margin-top: 1rem;
}

footer {
  margin-top: 2.5rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border);
  font-size: 0.92rem;
}

@media (max-width: 40rem) {
  body {
    padding: 1rem 0.9rem 2.5rem;
  }

  .site-header {
    grid-template-columns: 1fr;
  }

  .header-tools {
    justify-self: start;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .page-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 0.25rem;
  }

  .page-nav a {
    flex: 0 0 auto;
  }

  .table-wrap {
    border: 0;
    box-shadow: none;
    background: transparent;
  }

  table,
  .diff-table {
    min-width: 0;
  }

  thead {
    display: none;
  }

  tbody tr {
    display: block;
    margin: 0 0 0.85rem;
    border: 1px solid var(--border);
    background: var(--card);
  }

  tbody td {
    display: grid;
    grid-template-columns: 8.5rem 1fr;
    gap: 0.6rem;
    border-bottom: 1px solid var(--border);
  }

  tbody td:last-child {
    border-bottom: 0;
  }

  tbody td::before {
    content: attr(data-label);
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 650;
  }

  tbody td[colspan] {
    display: block;
  }

  tbody td[colspan]::before {
    content: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}