/**
 * @file
 * Buttons.
 */

.button {
  --button-color-bg: var(--color--white);
  --button-color-primary: var(--color--primary-50);
  --button-color-primary-dark: var(--color--primary-50);
  --button-border-radius: 0.1875rem;
  --button-line-height: 1.125rem;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--sp3);
  margin-inline-start: 0;
  margin-inline-end: var(--sp1);
  padding: 1px var(--sp1-5);
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  color: var(--button-color-primary);
  border: solid 2px var(--button-color-primary);
  border-radius: var(--button-border-radius);
  background-color: var(--button-color-bg);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  line-height: var(--button-line-height);
  margin-block: var(--sp1);
  appearance: none;
  -webkit-font-smoothing: antialiased;
  touch-action: manipulation;

  &:where(:hover),
  &:where(:focus) {
    text-decoration: none;
    color: color-mix(in lab, var(--button-color-primary-dark) 80%, black 20%);
    border-color: color-mix(
      in lab,
      var(--button-color-primary-dark) 80%,
      black 20%
    );
  }

  &:where(:active) {
    color: color-mix(in lab, var(--button-color-primary-dark) 80%, black 20%);
    border-color: color-mix(
      in lab,
      var(--button-color-primary-dark) 80%,
      black 20%
    );
  }

  &:where(:disabled),
  &.is-disabled {
    cursor: default;
    color: var(--color--gray-70);
    border-color: var(--color--gray-70);
  }
}

/* No margin if is part of a menu. */
.menu .button {
  margin-block: 0;
  margin-inline-start: 0;
  margin-inline-end: 0;
}

.button--primary {
  --button-color-bg: var(--color--white);
  --button-color-primary: var(--color--primary-50);
  --button-color-primary-dark: var(--color--primary-50);
  --button-border-radius: 0.1875rem;
  --button-line-height: 1.125rem;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--sp3);
  margin-inline-start: 0;
  margin-inline-end: var(--sp1);
  padding: 1px var(--sp1-5);
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  color: var(--button-color-primary);
  border: solid 2px var(--button-color-primary);
  border-radius: var(--button-border-radius);
  background-color: var(--button-color-bg);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  line-height: var(--button-line-height);
  margin-block: var(--sp1);
  appearance: none;
  -webkit-font-smoothing: antialiased;
  touch-action: manipulation;

  /* button base interactions */
  &:where(:hover),
  &:where(:focus) {
    text-decoration: none;
    color: color-mix(in lab, var(--button-color-primary-dark) 80%, black 20%);
    border-color: color-mix(
      in lab,
      var(--button-color-primary-dark) 80%,
      black 20%
    );
  }

  &:where(:active) {
    color: color-mix(in lab, var(--button-color-primary-dark) 80%, black 20%);
    border-color: color-mix(
      in lab,
      var(--button-color-primary-dark) 80%,
      black 20%
    );
  }

  &:where(:disabled),
  &.is-disabled {
    cursor: default;
    color: var(--color--gray-70);
    border-color: var(--color--gray-70);
  }

  /* primary overrides */
  &:where(:hover),
  &:where(:focus) {
    filter: saturate(400%);
    color: var(--button-color-primary);
    border-color: color-mix(
      in lab,
      var(--button-color-primary-dark) 80%,
      black 20%
    );
    background-color: color-mix(
      in lab,
      var(--button-color-primary-dark) 80%,
      black 80%
    );
  }

  &:where(:active) {
    filter: saturate(200%);
    color: var(--button-color-primary);
    border-color: color-mix(
      in lab,
      var(--button-color-primary-dark) 80%,
      black 20%
    );
    background-color: color-mix(
      in lab,
      var(--button-color-primary-dark) 80%,
      black 20%
    );
  }
}

.button--action,
.button--highlight {
  color: var(--text-on-secondary);
  border-color: transparent;
  background-color: var(--secondary);

  &:where(:hover) {
    border-color: transparent;
  }
}

.button--icon-back {
  display: inline-flex;
  align-items: center;

  &::before {
    display: block;
    width: 0.5em;
    height: 0.5em;
    margin-inline-end: 0.5em;
    content: '';
    transform: rotate(45deg); /* LTR */
    border-block-end: solid 2px currentColor;
    border-inline-start: solid 2px currentColor;
  }
}

.button--small {
  height: var(--sp2-5);
  padding-inline: var(--sp);
  font-size: 1rem;
  line-height: normal;
}

.button--large {
  height: var(--sp4);
  font-size: 1.25rem;
  line-height: normal;

  .arrow-right {
    margin-left: 0.625rem;
  }
}