.nav-link.is-current {
  color: var(--color-brand-900);
  background: var(--color-brand-200);
}

.mobile-nav-link.is-current {
  background: var(--color-brand-200);
  border-color: var(--color-brand-200);
  color: var(--color-brand-900);
}

.maintenance-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.9fr);
  gap: var(--space-4);
  padding: var(--space-6);
}

.maintenance-hero-copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-width: 0;
}

.maintenance-hero-side {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.hero-note {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  padding: var(--space-4);
}

.hero-note-title {
  margin: 0 0 var(--space-2) 0;
  font-size: 16px;
  font-weight: 900;
  color: var(--color-brand-900);
}

.hero-note-text {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.7;
}

.maintenance-signal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.signal-box {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  padding: var(--space-4);
}

.signal-label {
  margin-bottom: var(--space-2);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-900);
}

.signal-text {
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.7;
}

.maintenance-main-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.82fr 0.82fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
  align-items: stretch;
}

.main-article,
.action-card {
  display: flex;
  flex-direction: column;
}

.maintenance-flow-shell {
  margin-top: var(--space-6);
  padding: var(--space-5);
}

.flow-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.8fr);
  gap: var(--space-4);
  align-items: end;
  margin-bottom: var(--space-4);
}

.flow-intro {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.7;
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.flow-step {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  padding: var(--space-4);
}

.flow-step-number {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-900);
  margin-bottom: var(--space-2);
}

.flow-step-title {
  margin: 0 0 var(--space-2) 0;
  font-size: 16px;
  font-weight: 900;
  color: var(--color-ink);
}

.maintenance-two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.9fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
  align-items: start;
}

.content-block {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.content-side {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.side-block {
  padding: var(--space-4);
}

.dense-list {
  margin: 0;
  padding-left: 20px;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.7;
}

.topic-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.maintenance-bottom-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
  align-items: stretch;
}

.footer-links-wide {
  flex-wrap: wrap;
}

.footer-inner-stacked {
  justify-content: center;
}

@media (max-width: 1180px) {
  .maintenance-main-grid,
  .flow-grid,
  .maintenance-bottom-grid {
    grid-template-columns: 1fr;
  }

  .flow-header,
  .maintenance-hero,
  .maintenance-two-column {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .maintenance-hero,
  .maintenance-flow-shell,
  .content-block {
    padding: var(--space-5);
  }

  .topic-links .btn {
    width: 100%;
  }

  .maintenance-signal-grid {
    grid-template-columns: 1fr;
  }
}