/**
 * Buttons
 */

@media screen {

  button {
    background-color: var(--btn-color);
    border-radius: var(--form-radius);
    border: 1px solid var(--btn-color);
    color: var(--btn-text);
    font-size: inherit;
    font-family: inherit;
    padding: 0.25em 0.75em;
    display: inline-block;
    vertical-align: middle;
    box-shadow: var(--button-shadow);
    position: relative;
  }

  /**
   * Button states
   */
  button,
  button * {
    cursor: pointer;
  }

  /* Overlay */
  button::after {
    content: "";
    background-color: var(--white);
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    opacity: 0;
    transition: opacity 250ms cubic-bezier(0.25, 0.8, 0.5, 1);
  }

  button.alt::after {
    background-color: var(--mid-grey);
  }

  button:hover::after,
  button:focus::after {
    opacity: 0.07;
  }

  /* Button pressed state */
  button:active {
    box-shadow: var(--button-shadow-pressed);
  }

  /* Button layout */
  button > span {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: default;
  }

  /* Button icon */
  button > span > .icon {
    flex: 0 0 auto;
  }

  /* Button text label */
  button > span > span {
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  button.alt {
    background-color: var(--btn-alt-color);
    border-color: var(--btn-alt-border);
    color: var(--btn-alt-text);
  }

  button span {
    margin: 0;
  }

  button .icon {
    height: 1.2em;
    width: 1.2em;
    margin: 0.15em 0;
  }

  button .icon + span {
    margin-left: 0.25em;
  }

  /* RTL */
  [dir="rtl"] button .icon + span {
    margin-left: 0;
    margin-right: 0.5em;
  }

  button[disabled] {
    background-color: var(--light-grey);
    color: var(--mid-grey);
    border: 1px solid var(--light-grey);
  }

  /**
   * Button sizes
   */

  /* Extra-extra small ಠ_ಠ */
  button.size-xxs {
    font-size: 0.8em;
    padding: 0.1em 0.4em;
  }

  /* Extra small */
  button.size-xs {
    font-size: 0.86em;
    padding: 0.1em 0.5em;
  }

  /* Small */
  button.size-s {
    padding: 0.1em 0.5em;
  }

  /* Large */
  button.size-l {
    padding: 1em 1.125em;
  }
}