.plumbing-page .nav-link[aria-current="page"] {
  color: var(--color-brand-900);
  background: var(--color-brand-200);
}

.plumbing-page .mobile-nav-link[aria-current="page"] {
  background: var(--color-brand-200);
  border-color: var(--color-brand-200);
  color: var(--color-brand-900);
}

.plumbing-page .plumbing-hero {
  padding: var(--space-7);
}

.plumbing-page .plumbing-hero-top {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.plumbing-page .plumbing-kicker {
  margin: 0;
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-900);
}

.plumbing-page .plumbing-standfirst {
  margin: 0;
  max-width: 76ch;
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.7;
}

.plumbing-page .plumbing-hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: var(--space-5);
}

.plumbing-page .plumbing-hero-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #ffffff;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  height: 100%;
}

.plumbing-page .plumbing-panel-title,
.plumbing-page .plumbing-scope-title,
.plumbing-page .plumbing-subtitle,
.plumbing-page .plumbing-timeline-title,
.plumbing-page .plumbing-detail-title,
.plumbing-page .plumbing-review-title {
  margin: 0;
  color: var(--color-brand-900);
  font-size: 18px;
  font-weight: 900;
}

.plumbing-page .plumbing-scope-section,
.plumbing-page .plumbing-section {
  padding-top: var(--space-6);
}

.plumbing-page .plumbing-heading-wrap {
  margin-bottom: var(--space-4);
}

.plumbing-page .plumbing-scope-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.plumbing-page .plumbing-scope-card,
.plumbing-page .plumbing-main-panel,
.plumbing-page .plumbing-side-panel,
.plumbing-page .plumbing-detail-card,
.plumbing-page .plumbing-review-card {
  padding: var(--space-5);
}

.plumbing-page .plumbing-scope-text,
.plumbing-page .plumbing-detail-text,
.plumbing-page .plumbing-review-text {
  margin: var(--space-2) 0 0 0;
  color: var(--color-ink);
  font-size: 14px;
  line-height: 1.7;
}

.plumbing-page .plumbing-layout-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: var(--space-6);
  padding-top: var(--space-6);
  align-items: start;
}

.plumbing-page .plumbing-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}

.plumbing-page .plumbing-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.plumbing-page .plumbing-timeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.plumbing-page .plumbing-timeline-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-brand-200);
}

.plumbing-page .plumbing-timeline-step {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-brand-900);
  color: #ffffff;
  font-size: 18px;
  font-weight: 900;
}

.plumbing-page .plumbing-timeline-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.plumbing-page .plumbing-timeline-text {
  margin: 0;
  color: var(--color-ink);
  font-size: 14px;
  line-height: 1.7;
}

.plumbing-page .plumbing-inline-link {
  color: var(--color-brand-900);
  font-weight: 800;
  text-decoration: none;
}

.plumbing-page .plumbing-inline-link:hover {
  text-decoration: underline;
}

.plumbing-page .plumbing-detail-grid,
.plumbing-page .plumbing-review-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
}

@media (max-width: 1180px) {
  .plumbing-page .plumbing-hero-grid,
  .plumbing-page .plumbing-scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .plumbing-page .plumbing-hero-panel-main {
    grid-column: 1 / -1;
  }

  .plumbing-page .plumbing-detail-grid,
  .plumbing-page .plumbing-review-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .plumbing-page .plumbing-layout-grid,
  .plumbing-page .plumbing-columns,
  .plumbing-page .plumbing-timeline {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .plumbing-page .plumbing-hero,
  .plumbing-page .plumbing-scope-card,
  .plumbing-page .plumbing-main-panel,
  .plumbing-page .plumbing-side-panel,
  .plumbing-page .plumbing-detail-card,
  .plumbing-page .plumbing-review-card {
    padding: var(--space-5);
  }

  .plumbing-page .plumbing-hero-grid,
  .plumbing-page .plumbing-scope-grid,
  .plumbing-page .plumbing-detail-grid,
  .plumbing-page .plumbing-review-grid {
    grid-template-columns: 1fr;
  }
}