.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);
}

.pneu-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(295px, 0.88fr);
  gap: 16px;
  padding: 22px;
  margin-bottom: 16px;
}

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

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

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

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

.hero-side-text {
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.56;
}

.pneu-family-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

.pneu-family-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
}

.pneu-family-card-strong {
  background: linear-gradient(180deg, #ffffff 0%, #eef7ee 100%);
}

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

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

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

.pneu-system-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-bottom: 16px;
  overflow: hidden;
}

.system-band-item {
  padding: 16px 18px;
  border-right: 1px solid var(--color-border);
}

.system-band-item:last-child {
  border-right: 0;
}

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

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

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

.pneu-article {
  padding: 24px;
}

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

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

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

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

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

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

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

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

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

.article-section-table {
  margin-top: 20px;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: 12px;
}

.pneu-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  background: #ffffff;
}

.pneu-table th,
.pneu-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  line-height: 1.56;
}

.pneu-table th {
  background: var(--color-brand-200);
  color: var(--color-brand-900);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.pneu-table tbody tr:last-child td {
  border-bottom: 0;
}

.pneu-sidebar {
  position: sticky;
  top: 20px;
  padding: 18px;
}

.sidebar-title {
  margin: 0 0 12px 0;
}

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

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

.sidebar-link-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.sidebar-route:hover {
  text-decoration: underline;
}

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

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

  .pneu-family-card-strong {
    grid-column: 1 / -1;
  }
}

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

  .pneu-layout {
    grid-template-columns: 1fr;
  }

  .pneu-sidebar {
    position: static;
  }

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

  .pneu-system-band {
    grid-template-columns: 1fr;
  }

  .system-band-item {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .system-band-item:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 720px) {
  .pneu-hero,
  .pneu-article,
  .pneu-sidebar {
    padding: 20px;
  }

  .pneu-family-grid {
    grid-template-columns: 1fr;
  }

  .pneu-family-card {
    padding: 16px;
  }

  .pneu-table th,
  .pneu-table td {
    padding: 10px 12px;
  }
}