ボタン15

$BLOCK_NAME: '.button-15';

// 変数
$color_primary: #018ebe;
$color_bg: #f4f4f4;
$gradient_gloss: linear-gradient(
  90deg,
  hsla(0, 0%, 100%, 0.13) 0,
  hsla(0, 0%, 100%, 0.13) 77%,
  hsla(0, 0%, 100%, 0.5) 92%,
  hsla(0, 0%, 100%, 0.3)
);
$shadow_default: inset 0 0 15px rgba(55, 82, 170, 0),
  inset 0 0 8px hsla(0, 0%, 100%, 0), inset 0 0 4px hsla(0, 0%, 100%, 0.2),
  5px 5px 9px rgba(126, 209, 235, 0.3), -9px -7px 13px #fff;
$transition_default: 0.1s;
$easing_default: cubic-bezier(0.25, 0.46, 0.45, 0.94);

#{ $BLOCK_NAME } {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 220px;
  height: 50px;
  overflow: hidden;
  color: $color_primary;
  letter-spacing: 0.01em;
  background: $color_bg;
  border-radius: 5px;
  box-shadow: $shadow_default;
  &::before,
  &::after {
    position: absolute;
    top: 0;
    bottom: 0;
    display: block;
    content: '';
  }
  &::before {
    right: 16px;
    width: 6px;
    height: 6px;
    margin: auto 0;
    color: $color_primary;
    border-top: 2px solid;
    border-right: 2px solid;
    transition: $transition_default $easing_default;
    transform: rotate(45deg);
  }
  &::after {
    left: 0;
    width: 200%;
    background: $gradient_gloss;
    opacity: 0;
    transform: translateX(-100%);
  }
  & > span {
    transition: $transition_default $easing_default;
  }
  &:hover {
    color: $color_primary;
    &::before {
      opacity: 0.55;
    }
    &::after {
      opacity: 1;
      transition-timing-function: ease;
      transition-duration: 0.7s, 0.15s;
      transition-property: transform, opacity;
      transform: translateX(0);
    }
    & > span {
      opacity: 0.55;
    }
  }
  // 背景
  &__bg {
    padding: 64px;
    background: $color_bg;
  }
}