.recent-tools-section {
  padding: 40px 0;
}

.recent-tools-section h2 {
  font-size: 1.8rem;
  margin-bottom: 25px;
  color: var(--text-color);
  position: relative;
  padding-bottom: 10px;
}

.recent-tools-section h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background-color: var(--primary-color);
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-state i {
  font-size: 3rem;
  margin-bottom: 20px;
  color: var(--primary-light);
}

.empty-state h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
  color: var(--text-color);
}

.empty-state p {
  margin-bottom: 20px;
}

.clear-history-btn {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
  margin-bottom: 25px;
  text-decoration: none;
}

.clear-history-btn .fa-tools {
  font-size: 1.2em;
}

.clear-history-btn:hover {
  background-color: var(--secondary-color);
}

.tool-card .recent-time {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 10px;
}

nav ul li a.active {
  background-color: rgba(255, 255, 255, 0.2);
}