.big-button {
  width: 100%;
  height: 3.75rem;
  border-radius: 0.625rem;
  background-color: var(--button-color);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font: var(--button-small-font);
  color: var(--white);
}


.small-button {
  width:100%;
  height: 3rem;
  border-radius: 0.625rem;
  background-color: var(--button-color);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font: var(--mobile-button-small-font);
  color: var(--white);
}


.big-button:hover,
.small-button:hover {
  opacity: 0.8;
}

.big-button:focus,
.small-button:focus {
  opacity: 0.8;
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.5);
}

@media screen and (min-width: 63rem) {
  .big-button {
    font: var(--button-large-font);
  }
  .small-button {
    font: var(--button-large-font);
  }
}