.vocabulary-drill-item {
  margin-bottom: 2.5rem;
  border-top: 1px solid #e0e0e0;
  padding-top: 1.25rem;
}

.vocabulary-drill-item:first-child {
  border-top: none;
  padding-top: 0;
}

.vocabulary-drill-base {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.35rem 0;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.vocabulary-drill-number {
  font-size: 1rem;
  font-weight: 600;
  color: #555;
  flex-shrink: 0;
  min-width: 1.5rem;
}

.vocabulary-drill-base .text-de {
}

.vocabulary-drill-separator {
  color: #555;
  flex-shrink: 0;
}

.vocabulary-drill-base .text-en {
  color: #555;
}

.vocabulary-drill-base:hover {
  background: #e3f2fd;
  border-radius: 4px;
  padding-left: 0.5rem;
  margin-left: -0.5rem;
}

.vocabulary-drill-sentences {
  width: 100%;
  border-collapse: collapse;
  margin-left: 1.5rem;
}

.vocabulary-drill-sentences td {
  padding: 0.2rem 0.4rem;
  vertical-align: top;
}

.vocabulary-label {
  width: 1.75rem;
  font-weight: 600;
  color: #555;
  flex-shrink: 0;
}

.vocabulary-drill-sentences .text-de {
  width: 50%;
}

.vocabulary-drill-sentences .text-en {
  width: 50%;
}

.vocabulary-drill-sentences td:last-child {
  width: 1%;
  white-space: nowrap;
  padding-right: 0;
}

.vocabulary-drill-sentences tr:hover {
  background: #e3f2fd;
}

@media (max-width: 600px) {
  .vocabulary-drill-base {
    flex-wrap: wrap;
    gap: 0.2rem;
  }

  .vocabulary-drill-sentences {
    margin-left: 0;
    display: block;
  }

  .vocabulary-drill-sentences tbody {
    display: block;
  }

  .vocabulary-drill-sentences tr {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0 0.4rem;
    padding: 0.4rem 0;
    border-bottom: 1px solid #f5f5f5;
  }

  .vocabulary-drill-sentences td {
    display: block;
    padding: 0;
  }

  .vocabulary-label {
    flex-shrink: 0;
    width: 1.75rem;
  }

  .vocabulary-drill-sentences .text-de {
    flex: 1;
    width: auto;
    min-width: 0;
  }

  .vocabulary-drill-sentences .text-en {
    flex-basis: 100%;
    width: auto;
    padding-left: 2.15rem;
    padding-top: 0.2rem;
  }
}