.glossary-hero {
  padding-top: clamp(54px, 8vw, 92px);
  padding-bottom: clamp(58px, 8vw, 96px);
  background:
    radial-gradient(48% 72% at 92% 16%, var(--color-pink-soft), transparent),
    radial-gradient(42% 68% at 72% 88%, var(--color-blue-soft), transparent),
    var(--color-page);
}

.glossary-hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  align-items: center;
  gap: clamp(36px, 7vw, 84px);
}

.glossary-hero-copy {
  min-width: 0;
  max-width: 790px;
}

.glossary-hero-copy .subtitle {
  margin-bottom: 0;
}

.glossary-overview {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.glossary-overview-item {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-card);
  padding: 18px 20px;
}

.glossary-overview-item strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
}

.glossary-overview-item span {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-align: right;
}

.glossary-directory {
  padding-top: clamp(58px, 8vw, 92px);
  padding-bottom: clamp(58px, 8vw, 92px);
}

.glossary-toc {
  position: relative;
  top: auto;
  margin-bottom: 18px;
}

.glossary-toc ul {
  width: 100%;
}

.glossary-toc li {
  flex: 1 0 auto;
}

.glossary-toc a {
  width: 100%;
  justify-content: center;
  font-weight: 700;
}

.glossary-letter-index {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface-soft);
  padding: 12px;
}

.glossary-letter-index a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background: var(--color-surface);
  color: var(--color-ink);
  padding: 0.42rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  text-decoration: none;
}

.glossary-letter-index a:hover {
  border-color: var(--color-accent);
  background: var(--color-pink-soft);
  color: var(--color-accent-deep);
}

.glossary-letter-label {
  margin-right: 4px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.glossary-reading-note {
  margin-top: 22px;
}

.glossary-category {
  scroll-margin-top: calc(var(--header-height) + 18px);
}

.glossary-category-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 24px;
  margin-bottom: clamp(30px, 5vw, 50px);
}

.glossary-category-heading > div {
  min-width: 0;
  max-width: 760px;
}

.glossary-category-heading .subtitle {
  margin-bottom: 0;
}

.category-count {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-muted);
  padding: 0.45rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.glossary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(16px, 2.5vw, 26px);
}

.glossary-grid .term-card {
  scroll-margin-top: calc(var(--header-height) + 24px);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.glossary-grid .term-card dt {
  display: flex;
  align-items: center;
  gap: 10px;
}

.glossary-grid .term-card dt::after {
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  background: var(--color-accent);
  content: "";
}

.glossary-grid .term-card:nth-child(3n + 2) dt::after {
  background: var(--color-cyan);
}

.glossary-grid .term-card:nth-child(3n) dt::after {
  background: var(--color-orange);
}

.glossary-grid .term-card dd {
  line-height: 1.78;
}

.glossary-summary {
  margin-top: clamp(26px, 4vw, 42px);
}

@media (max-width: 900px) {
  .glossary-hero-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .glossary-overview {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .glossary-overview-item {
    align-items: flex-start;
    flex-direction: column;
  }

  .glossary-overview-item span {
    text-align: left;
  }
}

@media (max-width: 720px) {
  .glossary-overview {
    grid-template-columns: minmax(0, 1fr);
  }

  .glossary-overview-item {
    align-items: center;
    flex-direction: row;
  }

  .glossary-overview-item span {
    text-align: right;
  }

  .glossary-category-heading {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
  }

  .category-count {
    justify-self: start;
  }

  .glossary-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 420px) {
  .glossary-overview-item {
    align-items: flex-start;
    flex-direction: column;
  }

  .glossary-overview-item span {
    text-align: left;
  }

  .glossary-letter-index a {
    flex: 1 1 64px;
  }
}