:root {
  --sgs-surface: #ffffff;
  --sgs-border: #e2e8f0;
  --sgs-text: #0f172a;
  --sgs-muted: #475569;
  --sgs-shadow-sm: 0 8px 24px rgba(15, 23, 42, 0.08);
  --sgs-shadow-md: 0 18px 40px rgba(15, 23, 42, 0.12);
  --sgs-radius: 20px;
}

.sgs-category-hub,
.sgs-hub-booster-card {
  box-sizing: border-box;
}

.sgs-category-hub {
  color: var(--sgs-text);
  margin: 2rem 0 3rem;
}

.sgs-category-hub a,
.sgs-hub-booster-card a {
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
}

.sgs-category-hub__breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  color: var(--sgs-muted);
  font-size: .92rem;
}

.sgs-category-hub__breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: .5rem;
  color: #94a3b8;
}

.sgs-category-hub__breadcrumb a {
  color: inherit;
  text-decoration: none;
}

.sgs-category-hub__hero {
  background: linear-gradient(135deg, var(--sgs-grad-start), var(--sgs-grad-mid) 55%, var(--sgs-grad-end));
  color: #fff;
  border-radius: 28px;
  padding: clamp(1.5rem, 4vw, 3rem);
  box-shadow: var(--sgs-shadow-md);
}

.sgs-category-hub__badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  color: #fff;
  padding: .5rem .9rem;
  border-radius: 999px;
  font-size: .88rem;
  font-weight: 700;
}

.sgs-category-hub__title {
  margin: 1rem 0 .75rem;
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  line-height: 1.07;
  letter-spacing: -.03em;
}

.sgs-category-hub__title span {
  color: #fff7b3;
}

.sgs-category-hub__description {
  margin: 0;
  max-width: 58rem;
  font-size: 1.06rem;
  line-height: 1.7;
  color: rgba(255,255,255,.92);
}

.sgs-category-hub__stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.25rem 0;
}

.sgs-category-hub__stat {
  background: var(--sgs-surface);
  border: 1px solid var(--sgs-border);
  border-radius: var(--sgs-radius);
  padding: 1.1rem 1rem;
  box-shadow: var(--sgs-shadow-sm);
}

.sgs-category-hub__stat strong {
  display: block;
  font-size: 1.4rem;
  color: var(--sgs-accent);
}

.sgs-category-hub__stat span {
  display: block;
  margin-top: .35rem;
  color: var(--sgs-muted);
  font-size: .96rem;
}

.sgs-category-hub__trust-box {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin: 1.25rem 0 0;
  padding: 1rem;
  background: var(--sgs-trust-bg);
  border: 1px solid var(--sgs-trust-border);
  border-radius: var(--sgs-radius);
}

.sgs-category-hub__trust-item {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--sgs-trust-text);
  background: #fff;
  border: 1px solid var(--sgs-trust-item-border);
  padding: .65rem .9rem;
  border-radius: 999px;
  font-size: .92rem;
  font-weight: 600;
}

.sgs-category-hub__section {
  margin-top: 1.5rem;
}

.sgs-category-hub__section-head h2 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: -.02em;
}

.sgs-category-hub__section-head p {
  margin: .45rem 0 0;
  color: var(--sgs-muted);
}

.sgs-category-hub__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.sgs-category-hub__card {
  background: var(--sgs-surface);
  border: 1px solid var(--sgs-border);
  border-radius: 22px;
  padding: 1.2rem;
  box-shadow: var(--sgs-shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.sgs-category-hub__card:hover {
  transform: translateY(-2px);
  box-shadow: var(--sgs-shadow-md);
  border-color: var(--sgs-accent);
}

.sgs-category-hub__card-top {
  display: flex;
  align-items: center;
  gap: .7rem;
  margin-bottom: .8rem;
}

.sgs-category-hub__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  background: var(--sgs-icon-bg);
  border-radius: 14px;
  font-size: 1.25rem;
}

.sgs-category-hub__card:hover .sgs-category-hub__icon {
  background: var(--sgs-icon-bg-hover);
}

.sgs-category-hub__label {
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .03em;
  text-transform: uppercase;
  color: var(--sgs-accent);
}

.sgs-category-hub__card h3,
.sgs-hub-booster-card h2 {
  margin: 0 0 .55rem;
  font-size: 1.15rem;
}

.sgs-category-hub__card p,
.sgs-hub-booster-card p {
  margin: 0 0 1rem;
  color: var(--sgs-muted);
  line-height: 1.65;
}

.sgs-category-hub__link,
.sgs-hub-booster-card__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 44px;
  padding: .8rem 1rem;
  border-radius: 14px;
  font-weight: 700;
  text-decoration: none;
  color: #fff;
  background: var(--sgs-accent);
}

.sgs-category-hub__link:hover,
.sgs-hub-booster-card__button:hover,
.sgs-category-hub__link:focus,
.sgs-hub-booster-card__button:focus {
  color: #fff;
  text-decoration: none;
  filter: brightness(.96);
}

.sgs-category-hub__link:focus-visible,
.sgs-hub-booster-card__button:focus-visible {
  outline: 3px solid rgba(37, 99, 235, .25);
  outline-offset: 3px;
}

.sgs-hub-booster-card {
  margin: 2rem 0;
  padding: 1.2rem;
  border-radius: 22px;
  border: 1px solid var(--sgs-compact-border, #cbd5e1);
  background: linear-gradient(135deg, var(--sgs-compact-bg, #eff6ff), #ffffff);
  box-shadow: var(--sgs-shadow-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.sgs-hub-booster-card__eyebrow {
  display: inline-block;
  margin-bottom: .45rem;
  color: var(--sgs-compact-accent, #2563eb);
  font-size: .84rem;
  font-weight: 700;
  letter-spacing: .03em;
  text-transform: uppercase;
}

.sgs-hub-booster-card__button {
  white-space: nowrap;
  background: linear-gradient(135deg, var(--sgs-compact-accent, #2563eb), var(--sgs-compact-accent-light, #60a5fa));
}

@media (max-width: 900px) {
  .sgs-category-hub__stats,
  .sgs-category-hub__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .sgs-category-hub__stats,
  .sgs-category-hub__grid {
    grid-template-columns: 1fr;
  }

  .sgs-hub-booster-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .sgs-hub-booster-card__button {
    width: 100%;
  }
}