.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);
}

.gs-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(290px, 0.88fr);
  gap: 16px;
  padding: 22px;
  margin-bottom: 16px;
}

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

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

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

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

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

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

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

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

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

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

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

.gs-flow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}

.flow-box {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 16px 18px;
}

.flow-step {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: var(--color-brand-900);
  color: #ffffff;
  font-size: 18px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flow-copy {
  min-width: 0;
}

.flow-label {
  font-size: 15px;
  line-height: 1.42;
  font-weight: 800;
  color: var(--color-brand-900);
  margin-bottom: 4px;
}

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

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

.gs-article {
  padding: 24px;
}

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

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

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

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

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

.dual-panel {
  min-width: 0;
}

.dual-panel-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;
}

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

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

.gs-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: #ffffff;
}

.gs-table th,
.gs-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;
}

.gs-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;
}

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

.gs-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) {
  .gs-compare-grid {
    grid-template-columns: 1fr;
  }

  .gs-flow-grid {
    grid-template-columns: 1fr;
  }
}

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

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

  .gs-sidebar {
    position: static;
  }

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

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

  .flow-box {
    grid-template-columns: 36px minmax(0, 1fr);
    padding: 14px 16px;
  }

  .flow-step {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }

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