/* === Color Palette === */
:root {
  --text: #0b1b38;
  --muted: #666666;

  --background: #fafafa;
  --surface: #ffffff;
  --surface-muted: #f2f5f9;

  --accent: #3b5b92;
  --accent-soft: #dce5f2;
  --class: #7a4b14;

  --border: #dddddd;
}

/* === Base === */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  font-size: 18px;
  background: var(--background);
  color: var(--text);
}

/* === Site Header === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--accent);
}

.site-header-inner {
  width: min(100% - 2rem, 960px);
  margin: 0 auto;
  padding: 0.85rem 0;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

.site-title {
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  color: #ffffff;
  font-weight: 750;
  line-height: 1;
}

.site-title:hover {
  text-decoration: none;
}

.site-title-logo {
  display: block;
  width: 1.65rem;
  height: 1.65rem;
  object-fit: contain;
  flex: 0 0 auto;
  transform: translateY(0.03rem);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  justify-content: flex-end;
  font-size: 0.95rem;
}

.site-nav a {
  color: #ffffff;
}

.site-nav a:hover {
  color: var(--accent-soft);
}

.site-header a:focus-visible {
  outline-color: #ffffff;
}

/* === Site Footer === */
.site-footer {
  margin-top: 2rem;
  background: var(--accent);
  color: #ffffff;
}

.site-footer-inner {
  width: min(100% - 2rem, 960px);
  margin: 0 auto;
  padding: 1rem 0;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  font-size: 0.78rem;
  line-height: 1.45;
}

.site-footer p {
  margin: 0;
}

.site-footer p + p {
  margin-top: 0.2rem;
  color: var(--accent-soft);
}

.footer-updated {
  flex: 0 0 auto;
  color: var(--accent-soft);
  text-align: right;
}

/* === Page Width === */
.container {
  width: min(100% - 2rem, 960px);
  margin: 0 auto;
  padding-block: 2rem;
}

/* === Typography === */
h1,
h2,
h3 {
  line-height: 1.25;
}

h1 {
  font-size: 2.4rem;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.7rem;
  margin: 2rem 0 1rem;
}

h3 {
  font-size: 1.3rem;
  margin: 1.5rem 0 0.75rem;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.08rem;
}

.eyebrow,
.meta,
.empty-note {
  color: var(--muted);
  font-size: 0.9rem;
}

.eyebrow {
  margin-bottom: 0.35rem;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

/* === Links === */
a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 9;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 6px;
  background: var(--accent);
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 750;
  line-height: 1;
  opacity: 0.78;
  box-shadow: 0 0.35rem 0.9rem rgba(11, 27, 56, 0.18);
}

.back-to-top:hover,
.back-to-top:focus-visible {
  color: #ffffff;
  opacity: 1;
  text-decoration: none;
}

/* === Page Elements === */
p {
  margin-top: 0;
  margin-bottom: 1rem;
}

section {
  margin-bottom: 2rem;
}

.hero {
  padding: 2rem 0 1rem;
}

.hero-brand {
  display: grid;
  grid-template-columns: minmax(7rem, 11rem) minmax(0, 1fr);
  gap: clamp(1.25rem, 4vw, 2.5rem);
  align-items: center;
}

.hero-logo {
  display: block;
  width: 100%;
  height: auto;
  max-height: 15rem;
  object-fit: contain;
}

.hero-copy > :last-child {
  margin-bottom: 0;
}

.page-header {
  margin-bottom: 2rem;
}

.page-section {
  scroll-margin-top: 5rem;
}

.page-section h3[id] {
  scroll-margin-top: 5rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.35rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.6rem;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
}

.button:hover {
  color: #ffffff;
  text-decoration: none;
}

.button.secondary {
  background: var(--surface);
  color: var(--accent);
}

.button.secondary:hover {
  color: var(--accent);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 1rem;
}

.section-heading h2 {
  margin: 0;
}

.term-search {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 2rem;
}

.term-search label {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
}

.term-search input {
  width: 100%;
  min-height: 3rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

.term-search-compact {
  margin-bottom: 1.25rem;
}

.term-search-compact input {
  min-height: 2.7rem;
  font-size: 0.95rem;
}

.search-status {
  min-height: 1.3rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.search-results {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.search-results li {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}

.search-results a {
  display: block;
  padding: 0.65rem 0.75rem 0.15rem;
  font-weight: 750;
}

.search-results .meta {
  display: block;
  padding: 0 0.75rem 0.65rem;
}

.summary-grid,
.field-grid,
.info-grid,
.highlight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.summary-card,
.highlight-card,
.field-card,
.info-card,
.callout {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 1rem;
  border-radius: 6px;
}

.summary-card {
  display: block;
  color: var(--text);
}

.summary-card:hover {
  border-color: var(--accent);
  text-decoration: none;
}

.summary-card strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
}

.summary-card .total-entry-count {
  font-size: clamp(4rem, 10vw, 6.5rem);
  letter-spacing: 0;
}

.summary-card span {
  display: block;
  margin-top: 0.35rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.summary-action {
  margin-top: 1.25rem;
}

.highlight-card .section-heading {
  margin-bottom: 0.75rem;
}

.highlight-card h2 {
  font-size: 1.25rem;
}

.monthly-term h3 {
  margin-top: 0;
  font-size: 1.55rem;
}

.highlight-card .term-list {
  margin-bottom: 0;
}

.summary-card-wide {
  display: grid;
  grid-template-columns: minmax(160px, 0.7fr) minmax(220px, 1.3fr);
  gap: 1.25rem;
  align-items: start;
}

.status-breakdown {
  display: grid;
  gap: 0.65rem;
  margin: 0;
}

.status-breakdown div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--border);
}

.status-breakdown div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.status-breakdown dt {
  color: var(--muted);
}

.status-breakdown dd {
  margin: 0;
  font-weight: 750;
}

.field-card h3,
.info-card h3 {
  margin-top: 0;
}

.post-list {
  display: grid;
  gap: 1rem;
}

.post-list-item {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
}

.post-list-item h2 {
  margin: 0.15rem 0 0.4rem;
  font-size: 1.45rem;
}

.post-category-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.6rem;
}

.post-category-chip {
  display: inline-flex;
  align-items: center;
  min-height: 1.65rem;
  padding: 0.16rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1.25;
}

.post-excerpt {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.post-excerpt > :last-child {
  margin-bottom: 0;
}

.post-entry {
  max-width: 760px;
}

.post-header {
  margin-bottom: 2rem;
}

.post-header h1 {
  margin-bottom: 0.5rem;
}

.post-byline {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.post-content > :last-child {
  margin-bottom: 0;
}

.field-card > :last-child,
.info-card > :last-child,
.callout > :last-child {
  margin-bottom: 0;
}

.alphabet-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.alphabet-nav a {
  min-width: 2.25rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  text-align: center;
  font-weight: 700;
}

.alphabet-nav a:hover {
  border-color: var(--accent);
  text-decoration: none;
}

.browse-mode-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.browse-mode-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--surface);
  color: var(--accent);
  font-weight: 700;
}

.browse-mode-nav a:hover {
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
}

.browse-group-nav a {
  min-width: auto;
}

.browse-chip-count {
  font-style: italic;
}

.browse-group-description {
  max-width: 760px;
  margin-top: -0.35rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.term-header {
  margin-bottom: 2rem;
}

.term-header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.25rem;
}

.sense {
  margin-bottom: 2rem;
}

.sense + .sense {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.sense-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  align-items: baseline;
  margin-bottom: 0.5rem;
  color: var(--accent);
}

.sense-head strong {
  font-size: 1.1rem;
}

.class {
  color: var(--class);
  font-style: normal;
  font-weight: 600;
}

.metadata-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.65rem;
  align-items: center;
  margin-bottom: 0.65rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.meta-chips {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.meta-chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 1.7rem;
  padding: 0.18rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 650;
  line-height: 1.25;
  cursor: help;
}

.meta-chip:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.chip-help {
  position: absolute;
  left: 0;
  top: calc(100% + 0.45rem);
  z-index: 5;
  width: min(18rem, calc(100vw - 2rem));
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  box-shadow: 0 0.5rem 1.25rem rgba(11, 27, 56, 0.14);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 400;
  line-height: 1.45;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-0.2rem);
  transition: opacity 140ms ease, transform 140ms ease;
}

.meta-chip:hover .chip-help,
.meta-chip:focus .chip-help,
.meta-chip:focus-within .chip-help {
  opacity: 1;
  transform: translateY(0);
}

.sense-number {
  font-weight: bold;
  color: var(--accent);
}

.english {
  color: var(--muted);
  font-style: italic;
}

.definition {
  margin-bottom: 1rem;
}

.definition > :last-child {
  margin-bottom: 0;
}

.example {
  margin-bottom: 1rem;
  padding: 0.55rem 0.75rem;
  border-left: 3px solid var(--accent-soft);
  background: var(--surface-muted);
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.example p {
  display: inline;
  margin: 0;
}

.usage-note,
.status-note {
  margin-bottom: 1rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.usage-note > :last-child,
.status-note > :last-child {
  margin-bottom: 0;
}

.references,
.categories,
.fields,
.term-section,
.sources {
  font-size: 0.9rem;
  color: var(--muted);
}

.metadata-details {
  margin: 1rem 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.9rem;
}

.metadata-details summary {
  padding: 0.65rem 0.8rem;
  color: var(--text);
  font-weight: 700;
  cursor: pointer;
}

.metadata-details summary:hover {
  color: var(--accent);
}

.metadata-details > ul,
.metadata-details > dl {
  margin: 0;
  padding: 0 0.9rem 0.85rem 1.75rem;
}

.metadata-details dl {
  padding-left: 0.9rem;
}

.metadata-details dl div {
  display: grid;
  grid-template-columns: minmax(8rem, 0.4fr) 1fr;
  gap: 0.75rem;
  padding-top: 0.4rem;
}

.metadata-details dt {
  color: var(--text);
  font-weight: 700;
}

.metadata-details dd {
  margin: 0;
}

.word-relations {
  margin: 1rem 0;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}

.word-relations dl {
  display: grid;
  gap: 0.4rem;
  margin: 0;
}

.word-relation-row {
  display: grid;
  grid-template-columns: minmax(8rem, 0.35fr) 1fr;
  gap: 0.75rem;
  align-items: baseline;
}

.word-relation-row dt {
  color: var(--text);
  font-weight: 700;
}

.word-relation-row dd {
  margin: 0;
}

.references ul,
.entry-history ul {
  margin: 0.35rem 0 0;
  padding-left: 1.25rem;
}

.categories,
.fields {
  margin-bottom: 0.5rem;
}

.redirect,
.alternate {
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--accent);
  background: var(--surface-muted);
}

.entry-history {
  margin-top: 2rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface-muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.entry-history ul {
  padding-left: 1rem;
}

/* === Alphabet Browse Pages === */
.term-list,
.compact-list {
  list-style: none;
  padding: 0;
}

.term-list,
.compact-list,
.container > ul {
  line-height: 1.5;
}

.term-list li,
.compact-list li {
  margin-bottom: 0.5rem;
}

.term-list .meta {
  display: block;
}

.container > ul {
  padding-left: 1.25rem;
}

.container > ul li {
  margin-bottom: 0.5rem;
}

@media (max-width: 520px) {
  body {
    font-size: 16px;
  }

  .container {
    width: min(100% - 1.25rem, 960px);
    padding-block: 1.25rem;
  }

  .site-header-inner,
  .section-heading,
  .summary-card-wide {
    align-items: flex-start;
    flex-direction: column;
  }

  .summary-card-wide {
    display: flex;
    gap: 1rem;
  }

  .word-relation-row {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .site-title-logo {
    width: 1.55rem;
    height: 1.55rem;
  }

  .hero-brand {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .hero-logo {
    width: min(8.5rem, 52vw);
    max-height: none;
  }

  .site-footer-inner {
    width: min(100% - 1.25rem, 960px);
    flex-direction: column;
    gap: 0.5rem;
  }

  .footer-updated {
    text-align: left;
  }

  .term-header h1 {
    font-size: 2rem;
  }

}