/* Button */

.button,
[type='button'],
[type='submit'] {
  /* Some styles don't apply to <a> links since they are inline elements by default. */
  display: inline-block;
  font-family: var(--ff-headings);
  text-decoration: none;
  text-align: center;
  width: fit-content;
  padding: 0.5rem 1rem;
  text-box-trim: trim-both;
  text-box-edge: cap alphabetic;

  /* Improve usability and consistency of cursor style between image-type `input` and others. */
  cursor: pointer;
  color: var(--color-button-text);
  background: linear-gradient(var(--color-button), var(--color-button-hover));
  border: 1px solid var(--color-button-hover);
  border-radius: var(--radius-s);

  &:hover,
  &:focus-visible,
  &:active {
    /* Override any link underlines and color changes. */
    text-decoration: none;
    color: var(--color-button-text-hover);
    background: linear-gradient(var(--color-button-hover), var(--color-button));
  }

  &:active {
    box-shadow: inset 2px 2px 5px var(--color-black-40);
  }
}

.button--small {
  font-size: var(--fs-xs);
  padding: 0.35rem 0.5rem;
}

.button--alt {
  color: var(--color-button-text-hover);
  background: var(--color-button-hover);

  &:hover,
  &:focus-visible,
  &:active {
    color: var(--color-button-text);
    background: var(--color-button);
  }
}

.button--outline {
  color: var(--color-button);
  background: var(--color-button-text);
}

.button--accept,
.button--decline,
.button--delete {
  --color-button: currentColor;
  --color-button-text: light-dark(
    oklch(from var(--color-button) l c h),
    oklch(from var(--color-button) 100% 0.03 h)
  );
  --color-button-bg: light-dark(
    oklch(from var(--color-button) 100% 0.03 h),
    oklch(from var(--color-button) calc(l - 0.3) c h)
  );
  --color-button-border: light-dark(
    oklch(from var(--color-button) calc(l + 0.2) c h),
    oklch(from var(--color-button) calc(l - 0.07) c h)
  );
  --color-button-hover: light-dark(
    oklch(from var(--color-button) 90% 0.03 h),
    oklch(from var(--color-button) calc(l - 0.6) c h)
  );

  color: var(--color-button-text);
  background: linear-gradient(var(--color-button-bg), var(--color-button-hover));
  border-color: var(--color-button-border);

  &:hover,
  &:focus-visible,
  &:active {
    color: var(--color-button-text);
    background: linear-gradient(var(--color-button-hover), var(--color-button-bg));
  }
}

.button--accept {
  --color-button: var(--color-success);
}

.button--decline {
  --color-button: var(--color-warning);
}

.button--delete {
  --color-button: var(--color-error);
}

/* The disabled variation should always go last, so that it overrides any
other variations. */
.button,
[type='button'],
[type='submit'] {
  &:disabled {
    color: var(--color-disabled);
    background-color: var(--color-disabled-alt);
    border: 1px solid var(--color-disabled);
    background-image: none;
    text-shadow: none;
    cursor: default;

    &:hover,
    &:focus,
    &:active {
      /* Override any link underlines and color changes. */
      color: var(--color-disabled);
      background-color: var(--color-disabled-alt);
      text-decoration: none;
    }
  }
}

/* For forms with multiple fields show submit button below the form. */
input:not(:only-of-type),
textarea {
  & + [type='submit'] {
    display: block;
  }
}

/* For forms on mobile with single field add space between it and the submit button. */
@media (width >= 666px) {
  input:only-of-type {
    &:has(+ [type='submit']) {
      margin-inline-end: 0.5rem;
    }
  }
}