/* Topics page styling */
.topics-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.topics-header {
  margin-bottom: 30px;
}

.topics-search-container {
  background-color: var(--bg-color);
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 30px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.topics-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  align-items: center;
  margin-bottom: 10px;
}

.filter-group {
  flex: 1;
  min-width: 200px;
}

.filter-group label {
  display: block;
  font-weight: bold;
  margin-bottom: 5px;
  color: var(--heading-color);
}

.topics-search-input, 
.topics-category-select {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
}

.topics-search-input:focus, 
.topics-category-select:focus {
  border-color: var(--secondary-color);
  outline: none;
}

.clear-button {
  background-color: var(--secondary-color);
  color: white;
  border: none;
  padding: 10px 15px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.3s;
}

.clear-button:hover {
  background-color: var(--accent-color);
}

.alphabet-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 20px;
  position: sticky;
  top: 20px;
  background-color: var(--bg-color);
  padding: 10px;
  border-radius: 8px;
  z-index: 10;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.alphabet-link {
  display: inline-block;
  width: 30px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  border-radius: 50%;
  background-color: var(--secondary-color);
  color: white;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s;
}

.alphabet-link:hover {
  background-color: var(--accent-color);
  transform: scale(1.1);
}

.alphabet-link.disabled {
  background-color: #ddd;
  color: #999;
  cursor: not-allowed;
}

.topic-category {
  margin-bottom: 30px;
  border-left: 4px solid var(--secondary-color);
  padding-left: 15px;
}

.category-title {
  color: var(--heading-color);
  font-size: 24px;
  margin-bottom: 15px;
  padding-bottom: 5px;
  border-bottom: 2px solid var(--secondary-color);
}

.topic-list {
  list-style-type: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 15px;
}

.topic-item {
  background-color: var(--bg-color);
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}

.topic-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.15);
}

.topic-title {
  color: var(--secondary-color);
  font-weight: bold;
  font-size: 18px;
  margin: 0;
  text-decoration: none;
  display: block;
}

.topic-title:hover {
  text-decoration: underline;
}

.topic-category-tag {
  display: inline-block;
  padding: 3px 8px;
  background-color: var(--accent-color);
  color: white;
  border-radius: 15px;
  font-size: 12px;
  margin-top: 8px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .topic-list {
    grid-template-columns: repeat(auto-fill, minmax(100%, 1fr));
  }
  
  .topics-filters {
    flex-direction: column;
    gap: 10px;
  }
  
  .filter-group {
    width: 100%;
  }
  
  .alphabet-nav {
    gap: 3px;
  }
  
  .alphabet-link {
    width: 25px;
    height: 25px;
    line-height: 25px;
    font-size: 14px;
  }
}