:root {
  --wiki-ink: #1c2430;
  --wiki-muted: #5a6775;
  --wiki-line: rgba(28, 36, 48, 0.14);
  --wiki-blue: #3a78a8;
  --wiki-blue-soft: #dcecf8;
  --wiki-slate: #263747;
  --wiki-warm: #efe7dc;
}

html { scroll-behavior: smooth; }

/* A solid, quiet bridge between the shared header and the Wiki content. */
.site-header { background: #f6f9fb; }

.wiki-subnav {
  position: static;
  z-index: 90;
  background: rgba(246, 249, 251, 0.97);
  border-bottom: 1px solid var(--wiki-line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.wiki-subnav .container {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 46px;
  overflow-x: auto;
  scrollbar-width: thin;
  white-space: nowrap;
}

.wiki-subnav a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  color: var(--wiki-slate);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
}

.wiki-subnav a:hover,
.wiki-subnav a:focus-visible { background: var(--wiki-blue-soft); }

.wiki-main {
  min-height: 55vh;
  background:
    linear-gradient(
      180deg,
      rgba(231, 240, 247, 0.92) 0%,
      rgba(243, 245, 247, 1) 18%,
      rgba(239, 231, 220, 0.54) 56%,
      rgba(243, 245, 247, 1) 100%
    );
  color: var(--wiki-ink);
}

.wiki-shell {
  width: min(100% - 2rem, 1120px);
  margin: 0 auto;
}

.wiki-hero {
  padding: clamp(3.5rem, 8vw, 6rem) 0 clamp(3rem, 7vw, 5rem);
  text-align: center;
}

.wiki-kicker {
  margin: 0 0 0.75rem;
  color: var(--wiki-blue);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.wiki-hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  line-height: 1.05;
}

.wiki-hero > p:not(.wiki-kicker) {
  max-width: 760px;
  margin: 1.2rem auto 0;
  color: var(--wiki-muted);
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  line-height: 1.75;
}

.wiki-section {
  padding: clamp(3.2rem, 8vw, 6rem) 0;
}

.wiki-section + .wiki-section { border-top: 1px solid var(--wiki-line); }

.wiki-section-heading {
  max-width: 760px;
  margin-bottom: 2rem;
}

.wiki-section-heading h2 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.15;
}

.wiki-section-heading p,
.wiki-copy {
  color: var(--wiki-muted);
  line-height: 1.75;
}

.wiki-section-heading p { margin: 0; }
.wiki-copy { max-width: 850px; }

.wiki-feature-link {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(190px, 0.6fr);
  gap: clamp(1.25rem, 5vw, 4rem);
  align-items: center;
  padding: clamp(1.5rem, 4vw, 2.6rem) 0;
  color: inherit;
  text-decoration: none;
}

.wiki-feature-link + .wiki-feature-link { border-top: 1px solid var(--wiki-line); }

.wiki-feature-link h3 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.wiki-feature-link p {
  margin: 0;
  color: var(--wiki-muted);
  line-height: 1.7;
}

.wiki-feature-link:hover h3,
.wiki-feature-link:focus-visible h3 {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.wiki-link-meta {
  color: var(--wiki-blue);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.wiki-category-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.wiki-category-link {
  display: block;
  min-height: 150px;
  padding: 1.35rem;
  border-top: 3px solid var(--wiki-blue);
  background: rgba(255, 255, 255, 0.56);
  color: inherit;
  text-decoration: none;
}

.wiki-category-link h3 { margin: 0 0 0.55rem; }
.wiki-category-link p { margin: 0; color: var(--wiki-muted); line-height: 1.6; }
.wiki-category-link:hover h3,
.wiki-category-link:focus-visible h3 { text-decoration: underline; text-underline-offset: 0.18em; }

.wiki-word-title {
  margin: 0 0 1.5rem;
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  line-height: 1.25;
}

.wiki-word-details {
  display: grid;
  grid-template-columns: minmax(145px, 0.25fr) 1fr;
  gap: 0.65rem 1.2rem;
  max-width: 850px;
  margin: 0 0 1.5rem;
}

.wiki-word-details dt { color: var(--wiki-blue); font-weight: 700; }
.wiki-word-details dd { margin: 0; }

.wiki-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-top: 1.5rem;
}

.wiki-action {
  color: var(--wiki-slate);
  font-weight: 700;
  text-decoration: none;
}

.wiki-action:hover,
.wiki-action:focus-visible { text-decoration: underline; text-underline-offset: 0.18em; }

.wiki-fact-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 2.5rem; }
.wiki-fact { padding: 1.5rem 0; border-top: 1px solid var(--wiki-line); }
.wiki-fact h2 { margin: 0 0 0.55rem; color: var(--wiki-blue); font-size: 1.15rem; }
.wiki-fact p { margin: 0; line-height: 1.75; }

/* Keep the Lexicon browse guide in normal page flow. The shared desktop
   sidebar rule is sticky and can slide beneath the main WordGeek header. */
.wiki-lexicon-main .sidebar {
  position: static;
  top: auto;
}

.wiki-closing {
  max-width: 780px;
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  text-align: center;
}

.wiki-closing h2 { margin: 0 0 1rem; font-size: clamp(1.7rem, 4vw, 2.7rem); }
.wiki-closing p { color: var(--wiki-muted); line-height: 1.75; }

/* The Lexicon remains more structured because it is the permanent archive. */
.wiki-lexicon-main { background: linear-gradient(180deg, rgba(231, 240, 247, 0.72), #f3f5f7 36%); }
.page-intro h1 { margin: 0 0 0.75rem; font-size: clamp(1.8rem, 3vw, 2.4rem); }

@media (max-width: 760px) {
  .wiki-shell { width: min(100% - 1rem, 1120px); }
  .wiki-subnav .container {
    min-height: 40px;
    padding-block: 0.2rem;
    overflow-y: hidden;
    overscroll-behavior-inline: contain;
    -webkit-overflow-scrolling: touch;
  }
  .wiki-subnav a { flex: 0 0 auto; min-height: 32px; padding: 0.25rem 0.55rem; font-size: 0.82rem; }
  .wiki-hero { padding: 2.25rem 0 2rem; }
  .wiki-hero h1 { font-size: 2.25rem; }
  .wiki-hero > p:not(.wiki-kicker) { margin-top: 0.8rem; font-size: 0.95rem; line-height: 1.5; }
  .wiki-feature-link,
  .wiki-category-list,
  .wiki-word-details,
  .wiki-fact-list { grid-template-columns: 1fr; }
  .wiki-word-details { gap: 0.2rem; }
  .wiki-word-details dd + dt { margin-top: 0.55rem; }
}