#apostila {
  margin-top: 3em;
  padding-top: 1.5em;
  border-top: 1px solid #ddd;
}

.apostila-lista {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1em;
}

.apostila-lista fieldset {
  min-width: 0;
  margin: 0;
  padding: 0.8em 1em;
  border: 1px solid #d9e2e8;
  border-radius: 4px;
}

.apostila-lista legend {
  width: auto;
  padding: 0 0.35em;
  color: #168de2;
  font-weight: 600;
}

.apostila-topicos {
  display: grid;
  gap: 0.45em;
  margin-top: 0.4em;
  font-size: 0.9em;
}

.apostila-topicos label,
.apostila-lista legend {
  cursor: pointer;
}

.apostila-gerar-botao {
  margin-top: 1.5em;
  padding: 0.7em 1em;
  border: 0;
  border-radius: 4px;
  background: #168de2;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.apostila-gerar-botao:hover {
  background: #0d74bd;
}

.apostila-gerar-botao:disabled {
  opacity: 0.65;
  cursor: wait;
}