.topic-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 18px;
}

.topic-filter {
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  font: inherit;
  font-size: 0.95rem;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.topic-filter:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.26);
}

.topic-filter:focus-visible {
  outline: none;
  border-color: rgba(0, 255, 136, 0.48);
  box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.16);
}

.topic-filter.active {
  background: rgba(0, 255, 136, 0.12);
  border-color: rgba(0, 255, 136, 0.4);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.topic-filter[hidden] {
  display: none;
}

@media (max-width: 640px) {
  .topic-filters {
    gap: 8px;
  }

  .topic-filter {
    padding: 9px 12px;
    font-size: 0.9rem;
  }
}