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

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

.power-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(290px, 0.85fr);
  gap: 16px;
  padding: 22px;
  margin-bottom: 16px;
}

.power-hero-main {
  min-width: 0;
}

.power-hero-side {
  display: grid;
  gap: 10px;
  align-content: start;
}

.power-side-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  background: linear-gradient(180deg, #ffffff 0%, #f7fbf7 100%);
}

.power-side-label {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-900);
  margin-bottom: 5px;
}

.power-side-text {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.55;
}

.power-route-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
}

.power-route-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  text-decoration: none;
  color: inherit;
}

.power-route-card:hover {
  border-color: var(--color-brand-900);
  transform: translateY(-2px);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.power-route-card-emphasis {
  background: linear-gradient(180deg, #ffffff 0%, #eef7ee 100%);
}

.route-kicker {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.route-title {
  margin: 0;
  font-size: 18px;
  line-height: 1.28;
  color: var(--color-brand-900);
}

.route-text {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.62;
}

.power-compare {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-bottom: 16px;
  overflow: hidden;
}

.compare-block {
  padding: 16px 18px;
  border-right: 1px solid var(--color-border);
}

.compare-block:last-child {
  border-right: 0;
}

.compare-label {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-900);
  margin-bottom: 6px;
}

.compare-text {
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.58;
}

.power-main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 295px;
  gap: 16px;
  align-items: start;
}

.power-article {
  padding: 24px;
}

.power-article .article-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.power-article .article-section + .article-section {
  margin-top: 18px;
}

.power-article .article-heading {
  margin: 0;
  font-size: 21px;
  line-height: 1.32;
}

.power-article .article-paragraph {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--color-muted);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 14px;
  align-items: start;
}

.split-main {
  min-width: 0;
}

.split-note {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-brand-200);
  padding: 14px;
}

.note-label {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-900);
  margin-bottom: 6px;
}

.note-text {
  color: var(--color-ink);
  font-size: 14px;
  line-height: 1.56;
  font-weight: 600;
}

.power-side-rail {
  position: sticky;
  top: 20px;
  padding: 18px;
}

.side-rail-title {
  margin: 0 0 12px 0;
  font-size: 17px;
  font-weight: 900;
  color: var(--color-brand-900);
}

.side-rail-item {
  padding: 12px 0;
  border-top: 1px solid var(--color-border);
}

.side-rail-item:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.side-rail-label {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 6px;
}

.side-rail-value {
  color: var(--color-ink);
  line-height: 1.56;
  font-size: 14px;
  font-weight: 600;
}

.side-rail-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.side-link {
  color: var(--color-brand-900);
  text-decoration: none;
  font-weight: 700;
  line-height: 1.5;
}

.side-link:hover {
  text-decoration: underline;
}

.footer-links {
  row-gap: 8px;
}

@media (max-width: 1180px) {
  .power-route-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .power-route-card-emphasis {
    grid-column: 1 / -1;
  }

  .power-compare {
    grid-template-columns: repeat(2, 1fr);
  }

  .compare-block:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .compare-block:nth-child(1),
  .compare-block:nth-child(3) {
    border-bottom: 1px solid var(--color-border);
  }
}

@media (max-width: 980px) {
  .power-hero {
    grid-template-columns: 1fr;
  }

  .power-main-grid {
    grid-template-columns: 1fr;
  }

  .power-side-rail {
    position: static;
  }

  .split-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .power-hero,
  .power-article,
  .power-side-rail {
    padding: 20px;
  }

  .power-route-grid,
  .power-compare {
    grid-template-columns: 1fr;
  }

  .compare-block {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
    padding: 14px 16px;
  }

  .compare-block:last-child {
    border-bottom: 0;
  }

  .power-route-card {
    padding: 16px;
  }
}