/* ============================================================
   sections/advantages.css – Khối 4 lợi thế cho nhà thầu
   ============================================================ */

.advantages-section {
  background: var(--bg-page);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.advantages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.adv-card {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.adv-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand-navy-light);
  box-shadow: var(--shadow-card-hover);
}

.adv-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-blue-light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-navy);
  margin-bottom: 20px;
  transition: all var(--transition);
}

.adv-icon svg {
  stroke: var(--brand-navy);
}

.adv-card:hover .adv-icon {
  background: var(--brand-navy);
}

.adv-card:hover .adv-icon svg {
  stroke: #FFFFFF;
}

.adv-card h4 {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.adv-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (min-width: 640px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .advantages-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
}