body.reference-page {
  background:
    radial-gradient(circle at 8% 4%, #fff4dd 0%, #fff4dd00 34%),
    radial-gradient(circle at 92% 12%, #f7d8bd 0%, #f7d8bd00 34%),
    var(--bg);
}

.reference-page .page-glow {
  opacity: 0.14;
}

.reference-page .page-glow-b {
  opacity: 0.08;
}

.reference-page .site-header {
  grid-template-columns: auto 1fr auto;
  gap: 0.8rem;
}

.reference-main {
  width: min(1200px, 100% - 2.8rem);
  margin: 0 auto;
  padding: 1.65rem 0 1.5rem;
  display: grid;
  gap: 1.55rem;
}

.reference-main .section {
  width: 100%;
  margin: 0;
  padding: 0;
}

.reference-hero {
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 0.3rem 0 0;
  overflow: visible;
}

.reference-hero .eyebrow {
  margin: 0 0 0.6rem;
}

.reference-hero h1 {
  margin: 0.18rem 0 0.58rem;
  font-size: clamp(1.9rem, 4vw, 3.1rem);
  letter-spacing: -0.02em;
}

.reference-lede {
  margin: 0;
  max-width: 68ch;
  color: var(--ink-soft);
}

.reference-chips {
  margin-top: 0.82rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.reference-chips span {
  border: 1px solid var(--outline);
  border-radius: 999px;
  background: #fff9ef;
  color: #24466c;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 0.26rem 0.58rem;
}

.reference-actions {
  margin-top: 0.88rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.reference-layout {
  margin-top: 0;
  display: grid;
  grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
  gap: 0.95rem;
  align-items: start;
  padding-top: 0;
  min-width: 0;
}

.reference-toc {
  position: sticky;
  top: 5.2rem;
  border: 1px solid var(--outline);
  border-radius: var(--radius-m);
  background: #fffdf7;
  box-shadow: 0 10px 24px rgba(17, 35, 65, 0.08);
  padding: 0.72rem;
  min-width: 0;
}

.reference-toc h2 {
  margin: 0;
  font-size: 0.92rem;
}

.reference-toc nav {
  margin-top: 0.56rem;
  display: grid;
  gap: 0.24rem;
  max-height: calc(100vh - 8.8rem);
  overflow: auto;
  padding-right: 0.15rem;
  scrollbar-width: thin;
  min-width: 0;
}

.reference-toc a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 650;
  border-radius: 8px;
  padding: 0.35rem 0.48rem;
  overflow-wrap: anywhere;
}

.reference-toc a:hover {
  background: #0f223f10;
  color: var(--ink);
}

.reference-toc a.active {
  background: #102949;
  color: #fff;
}

.reference-content {
  display: grid;
  gap: 0.9rem;
  min-width: 0;
}

.reference-content section[id] {
  scroll-margin-top: 5rem;
}

.reference-block {
  border: 1px solid var(--outline);
  border-radius: var(--radius-l);
  background: #fffef9;
  box-shadow: 0 12px 26px rgba(14, 34, 66, 0.09);
  padding: 1rem;
  min-width: 0;
}

.reference-block h2 {
  margin: 0;
  font-size: clamp(1.3rem, 2.3vw, 1.95rem);
}

.reference-block h3 {
  margin: 0.2rem 0 0.42rem;
  font-size: 1rem;
}

.reference-block p {
  margin: 0.56rem 0 0;
  color: var(--ink-soft);
}

.reference-block ul {
  margin: 0.62rem 0 0;
  padding-left: 1.1rem;
  color: var(--ink-soft);
}

.reference-grid {
  margin-top: 0.76rem;
  display: grid;
  gap: 0.8rem;
}

.reference-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.reference-grid article {
  border: 1px solid var(--outline);
  border-radius: 12px;
  background: #fffcf4;
  padding: 0.72rem;
}

.showcase-viewer {
  margin-top: 0.75rem;
  border: 1px solid var(--outline);
  border-radius: 12px;
  background: #fffdf6;
  overflow: hidden;
}

.showcase-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--outline);
  background: #f4f8ff;
  padding: 0.65rem 0.72rem;
}

.showcase-toolbar label {
  color: #1f466e;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.showcase-toolbar select {
  min-width: 260px;
  flex: 1 1 300px;
  border: 1px solid var(--outline);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 0.84rem;
  padding: 0.34rem 0.48rem;
}

.showcase-tier,
.showcase-concepts {
  border: 1px solid var(--outline);
  border-radius: 999px;
  background: #fff;
  color: #24466c;
  font-size: 0.74rem;
  font-weight: 700;
  line-height: 1.3;
  padding: 0.24rem 0.55rem;
}

.showcase-concepts {
  max-width: 440px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#showcaseSource {
  margin-left: auto;
  color: #163f68;
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
}

#showcaseSource:hover {
  text-decoration: underline;
}

.showcase-code {
  margin: 0;
  min-height: 420px;
}

.reference-block pre {
  margin: 0.56rem 0 0;
  background: #0f223f;
  color: #ecf4ff;
  border: 1px solid #1f3b64;
  border-radius: 12px;
  font-family: "IBM Plex Mono", "Menlo", "Consolas", monospace;
  font-size: 0.78rem;
  line-height: 1.58;
  padding: 0.72rem;
  overflow: auto;
}

.reference-block code {
  font-family: "IBM Plex Mono", "Menlo", "Consolas", monospace;
}

.reference-block p code,
.reference-block li code,
.micro-note code {
  border: 1px solid rgba(20, 47, 80, 0.16);
  border-radius: 6px;
  background: #f7f9fd;
  color: #173559;
  font-size: 0.92em;
  padding: 0.06rem 0.26rem;
}

.table-wrap {
  margin-top: 0.72rem;
  border: 1px solid var(--outline);
  border-radius: 12px;
  overflow: auto;
  background: #fff;
}

.reference-table {
  width: 100%;
  min-width: 740px;
  border-collapse: collapse;
}

.reference-table th,
.reference-table td {
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--outline);
  color: var(--ink-soft);
  font-size: 0.82rem;
  padding: 0.58rem 0.62rem;
}

.reference-table th {
  background: #f5f8ff;
  color: #1f466e;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.reference-table tr:last-child td {
  border-bottom: 0;
}

.inline-notes {
  margin-top: 0.65rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.inline-notes span {
  border: 1px solid var(--outline);
  border-radius: 999px;
  background: #f6fafc;
  color: #204a76;
  font-size: 0.77rem;
  font-weight: 700;
  padding: 0.28rem 0.58rem;
}

.micro-note {
  margin: 0.52rem 0 0;
  color: #2d5278;
  font-size: 0.8rem;
}

.reference-footer {
  margin-top: 1.2rem;
}

@media (max-width: 1080px) {
  .reference-layout {
    grid-template-columns: 1fr;
  }

  .reference-toc {
    position: static;
    top: auto;
  }

  .reference-toc nav {
    max-height: none;
    overflow: visible;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .reference-page .site-header {
    grid-template-columns: auto 1fr;
  }

  .reference-grid.two {
    grid-template-columns: 1fr;
  }

  .reference-toc nav {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .reference-main {
    width: min(1200px, 100% - 1.25rem);
    padding-top: 0.95rem;
    gap: 0.95rem;
  }

  .reference-hero {
    padding: 0.16rem 0 0;
  }

  .reference-block {
    padding: 0.82rem;
  }

  .reference-hero h1 {
    font-size: clamp(1.6rem, 8vw, 2.3rem);
  }

  .showcase-toolbar {
    align-items: stretch;
  }

  .showcase-toolbar select {
    min-width: 100%;
    flex-basis: 100%;
  }

  .showcase-concepts {
    max-width: none;
  }

  #showcaseSource {
    margin-left: 0;
  }

  .reference-block pre {
    font-size: 0.72rem;
    padding: 0.6rem;
    border-radius: 8px;
  }

  .reference-table {
    min-width: 100%;
    font-size: 0.75rem;
  }

  .reference-table th,
  .reference-table td {
    padding: 0.4rem 0.35rem;
    font-size: 0.72rem;
  }

  .table-wrap {
    border-radius: 8px;
  }

  .reference-chips {
    gap: 0.35rem;
  }

  .reference-chips span {
    font-size: 0.7rem;
    padding: 0.2rem 0.45rem;
  }

}