#key-modules {
  padding: 88px 0;
}

.key-modules-intro {
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
}

.key-modules-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-primary-hover);
}

.key-modules-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

.key-modules-intro h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 14px;
}

.key-modules-intro p {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

.key-modules-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.key-module-card {
  padding: 26px 22px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.key-module-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.key-module-card .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  margin-bottom: 16px;
}

.key-module-card .icon svg {
  width: 20px;
  height: 20px;
}

.key-module-card h3 {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.key-module-card p {
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--color-text-muted);
}

.key-modules-cta {
  display: flex;
  justify-content: center;
}

@media (max-width: 900px) {
  .key-modules-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  #key-modules {
    padding: 64px 0;
  }

  .key-modules-grid {
    grid-template-columns: 1fr;
  }
}