body {
  font-family: 'Inter', sans-serif;
  background-color: #f9f9f9;
  color: #333;
  padding: 2rem;
  max-width: 900px;
  margin: auto;
  line-height: 1.6;
}

#toggleButton {
  position: fixed;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  border: none;
  background-color: #ddd;
  cursor: pointer;
  border-radius: 4px;
}

.hover-word {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

.hover-word .original,
.hover-word .hover {
  display: inline-block;
}

.hover-word .hover {
  position: absolute;
  top: 0;
  left: 0;
  visibility: hidden;
  white-space: nowrap;
  background-color: #e0f0ff;
  padding: 0 2px;
  border-radius: 4px;
  z-index: 1;
}

.hover-word:hover .original {
  visibility: hidden;
}

.hover-word:hover .hover {
  visibility: visible;
}

.parallel-table {
  width: 100%;
  border-collapse: collapse;
}

.parallel-table td {
  vertical-align: top;
  padding: 0.0rem 1rem 0.2rem 0;
  width: 50%;
  line-height: 1.2;
}

.parallel-original {
  font-weight: 500;
}

.parallel-translation {
  color: #555;
}

tbody + tbody {
  border-top: 1rem solid transparent;
}