habitica/website/client/assets/scss/button.scss

@mixin btn-focus-hover-shadow () {
  box-shadow: 0 4px 4px 0 rgba($black, 0.16), 0 1px 8px 0 rgba($black, 0.12);
}

.btn {
  cursor: pointer;
  font-family: 'Roboto Condensed', sans-serif;
  font-size: 16px;
  font-weight: bold;
  line-height: 1.5;
  border: 1px solid transparent !important;
  padding: 7.5px 15.5px;
  border-radius: 2px;
  box-shadow: 0 2px 2px 0 rgba($black, 0.16), 0 1px 4px 0 rgba($black, 0.12);
  color: $white;

  &:focus {
    outline: none;
    border-color: $purple-400;
    @include btn-focus-hover-shadow();
  }

  &:hover {
    @include btn-focus-hover-shadow();
    border-color: transparent;
  }

  &:active {
    box-shadow: none;
    border: 1px solid transparent;
  }
}

.btn:disabled, .btn.disabled {
  box-shadow: none;
  opacity: 0.64;
  border-color: transparent;
}

.btn-primary {
  background: $purple-200;

  &:disabled {
    background: $purple-200;
  }

  &:hover:not(:disabled), &:active {
    background: #5d3b9c;
  }
}

.btn-secondary, .dropdown > .btn-secondary {
  color: $gray-50;
  background: $white !important;

  &:hover:not(:disabled):not(.disabled), &:active, &:focus {
    color: $purple-200 !important;
  }

  &:active, &:focus {
    border-color: $purple-500 !important;
  }

  &:disabled, &.disabled {
    background: $gray-500 !important;
    color: $gray-100 !important;
  }
}

.btn-success {
  background: $green-10;

  &:disabled {
    background: $green-10;
  }

  &:hover:not(:disabled), &:active {
    background: $green-50;
  }
}

.btn-info {
  background: $blue-50;

  &:disabled {
    background: $blue-50;
  }

  &:hover:not(:disabled), &:active {
    background: $blue-100;
  }
}

.btn-danger {
  background: $red-50;

  &:disabled {
    background: $red-50;
  }

  &:hover:not(:disabled), &:active {
    background: $red-100;
  }
}

.btn-show-more {
  display: block;
  width: 50%;
  max-width: 448px;
  margin: 0 auto;
  margin-top: 12px;
  padding: 8px;
  font-size: 14px;
  line-height: 1.43;
  font-weight: bold;
  text-align: center;
  background: $gray-600;
  color: $gray-200 !important; // Otherwise it gets ignored when used on an A element
  box-shadow: none;

  &:hover {
    box-shadow: none;
    color: inherit !important;
  }
}