SiteWebAstrolabe/src/scss/components/_button.scss

.button,
.btn {
  display: inline-block;
  border: 0;
  background-color: var(--color-action-bg);
  color: var(--color-action-text);
  padding: get-size(300) get-size('base');
  line-height: 1;
  margin: 0;
  text-decoration: none;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
}

.button:hover,
.button:focus {
  filter: brightness(1.2);
}

.button:focus:hover,
.btn:focus:hover {
  outline: none;
}

.button:focus:not(:hover),
.btn:focus:not(:hover) {
  outline: 1px solid var(--color-action-text);
  outline-offset: -4px;
}

.button:active,
.btn:active {
  transform: scale(.99);
}

.btn {
  display: inline-block;
  padding: 1.125rem 2rem;
  border: 0;
  border-radius: 1.75rem;
  line-height: 1.25rem;
  text-decoration: none;
  font-size: 1.125rem;
  font-weight: 600;

  + .btn {
    margin-left: 2rem;
  }

  &.btn-primary {
    color: var(--color-dark);
    background-color: var(--color-primary);
    font-weight: 700;
  }

  &.btn-secondary {
    color: var(--color-white);
    background-color: var(--color-secondary);
    font-weight: 500;
  }
}