/**
 * بلوک لینک‌سازی داخلی — مینیمال، راست‌چین، ریسپانسیو
 */
.discovery-hub {
  --dh-accent: var(--color-primary, #0c2e60);
  --dh-accent-soft: rgba(12, 46, 96, 0.08);
  --dh-border: rgba(12, 46, 96, 0.1);
  --dh-text: #334155;
  --dh-muted: #64748b;
  padding: clamp(2rem, 4vw, 3rem) 0;
  background: #f9fafb;
  border-top: 1px solid #eef2f6;
  direction: rtl;
  text-align: right;
}

.discovery-hub .container {
  max-width: 1140px;
}

.discovery-hub__head {
  text-align: right;
  max-width: 38rem;
  margin: 0 0 clamp(1.25rem, 3vw, 1.75rem);
}

.discovery-hub__title {
  font-size: clamp(1.2rem, 2.5vw, 1.45rem);
  font-weight: 800;
  color: var(--dh-accent);
  margin: 0 0 0.4rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.discovery-hub__lead {
  margin: 0;
  color: var(--dh-muted);
  font-size: clamp(0.84rem, 2vw, 0.92rem);
  line-height: 1.75;
}

.discovery-hub__grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
  align-items: stretch;
}

@media (min-width: 576px) {
  .discovery-hub__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }
}

@media (min-width: 992px) {
  .discovery-hub__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem 1.1rem;
  }
}

.discovery-hub__group {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: #fff;
  border: 1px solid var(--dh-border);
  border-radius: 12px;
  padding: 0.85rem 0.9rem 0.75rem;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.discovery-hub__group:hover {
  border-color: rgba(12, 46, 96, 0.16);
  box-shadow: 0 4px 16px rgba(12, 46, 96, 0.06);
}

.discovery-hub__group-title {
  flex-shrink: 0;
  margin: 0 0 0.55rem;
  padding: 0 0.55rem 0.45rem 0;
  border-bottom: 1px solid #f1f5f9;
  border-inline-end: 3px solid var(--dh-accent);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--dh-accent);
  line-height: 1.45;
  text-align: right;
}

.discovery-hub__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1;
  min-width: 0;
}

.discovery-hub__list > li {
  min-width: 0;
}

.discovery-hub__link {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-direction: row;
  gap: 0.45rem;
  width: 100%;
  padding: 0.4rem 0.5rem;
  border-radius: 8px;
  color: var(--dh-text);
  text-decoration: none;
  font-size: 0.86rem;
  line-height: 1.5;
  text-align: right;
  transition: background 0.15s ease, color 0.15s ease;
}

.discovery-hub__link-text {
  flex: 1;
  min-width: 0;
  text-align: right;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

.discovery-hub__link--blog .discovery-hub__link-text {
  -webkit-line-clamp: 2;
  font-size: 0.84rem;
  line-height: 1.55;
}

.discovery-hub__link-arrow {
  flex-shrink: 0;
  order: -1;
  margin-inline-end: 0.1rem;
  font-size: 0.7rem;
  color: #94a3b8;
  opacity: 1;
  transition: transform 0.15s ease, color 0.15s ease;
}

.discovery-hub__link:hover,
.discovery-hub__link:focus-visible {
  color: var(--dh-accent);
  background: var(--dh-accent-soft);
}

.discovery-hub__link:hover .discovery-hub__link-arrow,
.discovery-hub__link:focus-visible .discovery-hub__link-arrow {
  color: var(--dh-accent);
  transform: translateX(-2px);
}

.discovery-hub__link:focus-visible {
  outline: 2px solid rgba(12, 46, 96, 0.35);
  outline-offset: 1px;
}

/* نوع لینک — نقطه رنگی ظریف */
.discovery-hub__link--university::before,
.discovery-hub__link--major::before,
.discovery-hub__link--blog::before,
.discovery-hub__link--page::before {
  content: "";
  flex-shrink: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  margin-inline-start: 0.15rem;
  background: #cbd5e1;
}

.discovery-hub__link--university::before {
  background: #3b82f6;
}

.discovery-hub__link--major::before {
  background: #8b5cf6;
}

.discovery-hub__link--blog::before {
  background: #f59e0b;
}

.discovery-hub__link--page::before {
  background: #10b981;
}

/* ─── نسخه فشرده (وبلاگ) ─── */
.discovery-hub--compact {
  padding: 1.25rem 0 0;
}

.discovery-hub--compact .discovery-hub__group {
  padding: 0.7rem 0.75rem 0.65rem;
}

.discovery-hub--compact .discovery-hub__link {
  font-size: 0.84rem;
  padding: 0.32rem 0.4rem;
}

.discovery-hub--inline {
  padding: 1.25rem 0 0;
  background: transparent;
  border-top: none;
}

.discovery-hub--inline .discovery-hub__head {
  margin-bottom: 1rem;
}

.discovery-hub--inline .discovery-hub__title {
  font-size: 1.1rem;
}

.discovery-hub--inline .discovery-hub__grid {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .discovery-hub--inline .discovery-hub__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* موبایل — فاصله و لمس راحت‌تر */
@media (max-width: 575.98px) {
  .discovery-hub {
    padding: 1.75rem 0 2rem;
  }

  .discovery-hub__head {
    margin-bottom: 1.1rem;
  }

  .discovery-hub__group {
    padding: 0.8rem 0.85rem 0.7rem;
  }

  .discovery-hub__link {
    padding: 0.48rem 0.45rem;
    font-size: 0.88rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .discovery-hub__group,
  .discovery-hub__link,
  .discovery-hub__link-arrow {
    transition: none;
  }

  .discovery-hub__link:hover .discovery-hub__link-arrow {
    transform: none;
  }
}