*,
*:before,
*:after {
  box-sizing: border-box;
}

:root {
  --menu-expand-bg-color: #dedede;
}

#chaboiga {
  & .menu {
    display: block;
    z-index: 100;
    width: 40px;
    height: 40px;
    border-radius: 50% 50% 50% 50%;
    cursor: pointer;
  }

  & .hamburger {
    position: absolute;
    top: 24px;
    right: 8px;
    width: 30px;
    height: 2px;
    background: #011706;
    display: block;
    -webkit-transform-origin: center;
    transform-origin: center;
    -webkit-transition: 0.5s ease-in-out;
    transition: 0.5s ease-in-out;
  }

  & .hamburger:after,
  & .hamburger:before {
    -webkit-transition: 0.5s ease-in-out;
    transition: 0.5s ease-in-out;
    content: "";
    position: absolute;
    display: block;
    width: 100%;
    height: 100%;
    background: #011706;
  }

  & .hamburger:before {
    top: -10px;
  }

  & .hamburger:after {
    bottom: -10px;
  }

  & input {
    display: none;
  }

  & input:checked + .menu {
    position: absolute;
    background: var(--menu-expand-bg-color);
    right: 0;
    top: 0;
    width: 100vw;
    height: 100vh;

    box-shadow: 0 0 0 100vw var(--menu-expand-bg-color),
      0 0 0 100vh var(--menu-expand-bg-color);
    border-radius: 0;
  }

  & input:checked + .menu .hamburger {
    -webkit-transform: rotate(45deg);
    transform: rotate(45deg);
  }

  & input:checked + .menu .hamburger:after {
    -webkit-transform: rotate(90deg);
    transform: rotate(90deg);
    bottom: 0;
  }

  & input:checked + .menu .hamburger:before {
    -webkit-transform: rotate(90deg);
    transform: rotate(90deg);
    top: 0;
  }

  & input:checked + .menu + #menu-items {
    opacity: 1;
  }

  & #menu-items {
    z-index: 200;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: 0.25s 0s ease-in-out;
  }
}