.cluster-page {
  background: var(--black);
  color: var(--white);
}

.cluster-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(8, 8, 8, 0.96);
  border-bottom: 1px solid var(--border);
  /* backdrop-filter removed: re-composites its backdrop every scrolled frame (scroll stutter); near-opaque background instead. */
}

.cluster-topbar__inner,
.cluster-shell,
.cluster-footer__inner {
  width: min(1120px, calc(100vw - 40px));
  margin: 0 auto;
}

.cluster-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 74px;
}

.cluster-brand {
  color: var(--white);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.cluster-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.cluster-nav a {
  color: var(--gray-light);
  text-decoration: none;
  font-family: var(--sans);
  font-size: 14px;
}

.cluster-nav a:hover,
.cluster-nav a:focus-visible {
  color: var(--pink-text);
}

.cluster-shell {
  padding: 30px 0 88px;
}

.cluster-page .breadcrumb {
  margin: 0 0 30px;
}

.cluster-hero {
  padding: 22px 0 38px;
  border-bottom: 1px solid var(--border);
}

.cluster-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--pink-text);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.cluster-tag::before {
  content: "";
  display: block;
  width: 30px;
  height: 1px;
  background: currentColor;
}

.cluster-title {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-size: clamp(42px, 7vw, 76px);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.cluster-title em {
  color: var(--pink-text);
  font-style: italic;
}

.cluster-subtitle {
  max-width: 860px;
  color: var(--gray-light);
  font-size: clamp(18px, 2.5vw, 22px);
  line-height: 1.55;
}

.cluster-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.cluster-stat {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
}

.cluster-stat__label {
  display: block;
  margin-bottom: 10px;
  color: var(--gray);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.cluster-stat__value {
  color: var(--white);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.4;
}

.cluster-intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 34px;
}

.cluster-panel,
.cluster-card,
.cluster-mini-card {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
}

.cluster-panel {
  padding: 26px;
}

.cluster-panel h2,
.cluster-section h2,
.cluster-sidepanel h2 {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.cluster-panel p,
.cluster-sidepanel p,
.cluster-section-lead {
  color: var(--gray-light);
  font-size: 16px;
  line-height: 1.75;
}

.cluster-list {
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--gray-light);
}

.cluster-list li + li {
  margin-top: 10px;
}

.cluster-list a,
.cluster-list a:visited,
.cluster-panel a,
.cluster-panel a:visited,
.cluster-sidepanel a,
.cluster-sidepanel a:visited,
.cluster-card__desc a,
.cluster-card__desc a:visited,
.cluster-section-body a,
.cluster-section-body a:visited,
.snippet-answer a,
.snippet-answer a:visited {
  color: var(--white);
  text-decoration: underline;
  text-decoration-color: rgba(219, 38, 108, 0.45);
  text-underline-offset: 2px;
  transition: color .2s, text-decoration-color .2s;
}

.cluster-list a:hover,
.cluster-list a:focus-visible,
.cluster-panel a:hover,
.cluster-panel a:focus-visible,
.cluster-sidepanel a:hover,
.cluster-sidepanel a:focus-visible,
.cluster-card__desc a:hover,
.cluster-card__desc a:focus-visible,
.cluster-section-body a:hover,
.cluster-section-body a:focus-visible,
.snippet-answer a:hover,
.snippet-answer a:focus-visible {
  color: var(--pink-text);
  text-decoration-color: var(--pink-text);
}

.cluster-sidepanel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 520px), 1fr));
  align-items: start;
  gap: 16px;
}

/* When the card count is odd, let the last card span the full row so no empty cell is stranded. */
.cluster-sidepanel .cluster-mini-card:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.cluster-mini-card {
  padding: 22px;
}

.cluster-mini-card__label {
  display: block;
  margin-bottom: 10px;
  color: var(--pink-text);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.cluster-mini-card__title {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 400;
}

.cluster-sections {
  display: grid;
  gap: 28px;
  margin-top: 42px;
}

.cluster-section {
  padding-top: 28px;
  border-top: 1px solid var(--border);
  max-width: 100%;
  min-width: 0;
}

.cluster-kicker {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--pink-text);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.cluster-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
  max-width: 100%;
  min-width: 0;
}

.cluster-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 220px;
  min-width: 0;
  padding: 22px;
  text-decoration: none;
  color: var(--gray-light);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

a.cluster-card:visited {
  color: var(--gray-light);
}

.cluster-card:hover,
.cluster-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(219, 38, 108, 0.38);
  background: rgba(219, 38, 108, 0.08);
}

.cluster-card__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--pink-text);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.cluster-card__title {
  margin: 0 0 10px;
  color: var(--white);
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 400;
  line-height: 1.04;
}

.cluster-card__desc {
  margin: 0;
  color: var(--gray-light);
  font-size: 15px;
  line-height: 1.72;
}

.cluster-card__meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  margin-top: 18px;
  color: var(--gray);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.cluster-card__meta strong {
  color: var(--white);
  font-weight: 500;
}

.cluster-footer {
  margin-top: 54px;
  border-top: 1px solid var(--border);
}

.cluster-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 0 40px;
}

.cluster-footer__copy {
  max-width: 680px;
  color: var(--gray-light);
  font-size: 14px;
  line-height: 1.7;
}

.cluster-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.cluster-footer__links a {
  color: var(--white);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.cluster-footer__links a:hover,
.cluster-footer__links a:focus-visible {
  color: var(--pink-text);
}

@media (max-width: 920px) {
  .cluster-intro,
  .cluster-grid,
  .cluster-stats {
    grid-template-columns: 1fr;
  }

  .cluster-footer__inner {
    flex-direction: column;
  }
}

/* AI-extractable quick-answer strip (mirrors /calculator pattern) */
.cluster-answer-strip {
  margin: 22px 0 28px;
  padding: 24px 26px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
}

.cluster-answer-strip__label {
  margin: 0 0 14px;
  color: var(--pink-text);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.cluster-answer-strip__values {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  color: var(--gray-light);
  font-size: 16px;
  line-height: 1.55;
}

.cluster-answer-strip__values li {
  padding-left: 14px;
  border-left: 2px solid rgba(219, 38, 108, 0.45);
}

.cluster-answer-strip__values strong {
  color: var(--white);
  font-weight: 600;
}

.cluster-answer-strip__link {
  margin: 16px 0 0;
  color: var(--gray-light);
  font-size: 14px;
}

.cluster-answer-strip__link a {
  color: var(--white);
  text-decoration: underline;
  text-decoration-color: rgba(219, 38, 108, 0.45);
  text-underline-offset: 2px;
}

.cluster-answer-strip__link a:hover,
.cluster-answer-strip__link a:focus-visible {
  color: var(--pink-text);
  text-decoration-color: var(--pink-text);
}

/* FAQ block — literal Q&A with FAQPage parity */
.cluster-faq {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.cluster-faq__item {
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}

.cluster-faq__question {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--white);
}

.cluster-faq__answer {
  margin: 0;
  color: var(--gray-light);
  font-size: 16px;
  line-height: 1.7;
}

.cluster-faq__answer a,
.cluster-faq__answer a:visited {
  color: var(--white);
  text-decoration: underline;
  text-decoration-color: rgba(219, 38, 108, 0.45);
  text-underline-offset: 2px;
}

.cluster-faq__answer a:hover,
.cluster-faq__answer a:focus-visible {
  color: var(--pink-text);
  text-decoration-color: var(--pink-text);
}

@media (max-width: 640px) {
  .cluster-answer-strip {
    padding: 20px 56px 20px 18px;
  }

  .cluster-faq__item {
    padding: 18px 56px 18px 18px;
  }

  .cluster-faq__question {
    font-size: 19px;
  }
}

@media (max-width: 640px) {
  .cluster-topbar__inner,
  .cluster-shell,
  .cluster-footer__inner {
    width: min(1120px, calc(100vw - 28px));
  }

  .cluster-topbar__inner {
    padding: 12px 0;
    min-height: 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .cluster-nav {
    gap: 10px 14px;
  }

  .cluster-shell {
    padding-top: 22px;
  }

  .cluster-card {
    min-height: 0;
    padding-right: 22px;
  }

  .cluster-card__title {
    font-size: 26px;
  }
}