.modules {
  background: linear-gradient(180deg, transparent, rgba(67, 217, 173, 0.03), transparent);
}

.modules-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.module-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  cursor: pointer;
  transition: border-color 0.25s, box-shadow 0.25s;
  border-left: 3px solid var(--mod-color);
}

.module-card:hover,
.module-card.active {
  border-color: color-mix(in srgb, var(--mod-color) 40%, var(--border));
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.module-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.module-left {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.module-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.module-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.module-level {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.module-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.module-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 4px;
}

.module-toggle {
  color: var(--text-muted);
  font-size: 0.75rem;
  flex-shrink: 0;
  padding-top: 4px;
  transition: color 0.2s;
}

.module-card.active .module-toggle {
  color: var(--primary-light);
}

.module-topics {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  animation: fadeInUp 0.3s ease;
}

.topics-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.topics-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.topics-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.topic-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

@media (max-width: 560px) {
  .topics-list {
    grid-template-columns: 1fr;
  }
  .module-left {
    flex-direction: column;
  }
}