/**
* c-radio
*/
@import url('../../styles/variables.css');

.c-radio {
  position: relative;
  cursor: pointer;
  user-select: none;

  & > input {
    position: absolute;
    clip: rect(0, 0, 0, 0);
  }

  & > .c-radio__box {
    position: relative;
    display: inline-block;
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    border: 1px solid var(--gray);
    margin-right: 0.3em;
    border-radius: 1em;
    transition: all 0.2s ease;

    &::after {
      content: '';
      position: absolute;
      top: -1px;
      left: -1px;
      width: 1em;
      height: 1em;
      border-radius: 0.5em;
      background-color: currentColor;
      transform: scale(0);
      transition: transform 0.2s ease;
    }
  }

  &:hover > .c-radio__box {
    border-color: var(--primary-color);
  }

  & > input:checked + .c-radio__box {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
  }

  & > input:checked + .c-radio__box::after {
    transform: scale(0.5);
  }

  & > input:focus + .c-radio__box {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.15em color(var(--primary-color) l(80%));
  }

  & > input[disabled] + .c-radio__box {
    border-color: var(--gray);
    background-color: color(var(--gray) l(90%));
    color: color(var(--gray) l(70%));
    cursor: not-allowed;
  }

  & > input[disabled] ~ .c-radio__label {
    color: var(--gray);
    cursor: not-allowed;
  }
}

.c-radio-group {
  display: inline-flex;
  font-size: var(--form-font-md);
  line-height: calc(var(--form-height-md) - 2px);

  &.is-xs {
    font-size: var(--form-font-xs);
    line-height: var(--form-height-xs);
    line-height: calc(var(--form-height-xs) - 2px);
  }

  &.is-sm {
    font-size: var(--form-font-sm);
    line-height: var(--form-height-sm);
    line-height: calc(var(--form-height-sm) - 2px);
  }

  &.is-lg {
    font-size: var(--form-font-lg);
    line-height: var(--form-height-lg);
    line-height: calc(var(--form-height-lg) - 2px);
  }

  &.is-xl {
    font-size: var(--form-font-xl);
    line-height: calc(var(--form-height-xl) - 2px);
  }
}

.c-radio + .c-radio {
  margin-left: 1em;
}

.c-radio--button {
  display: block;
  position: relative;

  & > input {
    position: absolute;
    clip: rect(0, 0, 0, 0);
  }

  & > .c-radio__label {
    position: relative;
    display: block;
    white-space: nowrap;
    border: 1px solid color(var(--gray) l(80%));
    padding: 0 1em;
    margin-left: -1px;
    cursor: pointer;
    transition: box-shadow 0.3s ease;
  }

  &:first-child .c-radio__label {
    margin-left: 0;
    border-radius: 0.3em 0 0 0.3em;
  }

  &:last-child .c-radio__label {
    border-radius: 0 0.3em 0.3em 0;
  }

  &:hover {
    color: var(--primary-color);
  }

  & > input:checked ~ .c-radio__label {
    z-index: 1;
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
  }

  & > input:active ~ .c-radio__label {
    z-index: 2;
    box-shadow: 0 0 0 0.4em color(var(--gray) l(50%) a(0.2));
  }

  & > input:focus ~ .c-radio__label {
    z-index: 1;
    box-shadow: 0 0 0 0.2em color(var(--primary-color) l(85%));
  }

  & > input[disabled] ~ .c-radio__label {
    background: color(var(--gray) l(95%));
    color: color(var(--gray) l(75%));
    cursor: not-allowed;
  }
}

.c-form-item__control .c-radio-group {
  /* fix IE10 alignment bug */
  vertical-align: top;
}