:root {
  --bu: rgb(0, 55, 97);
  --w: #FFFFFF;
  --art: #679873;
}

.circular-menu {
  position: fixed;
  bottom: 1em;
  right: 1em;
  z-index: 2;
}

.circular-menu .floating-btn {
  display: block;
  width: 3.5em;
  height: 3.5em;
  border-radius: 50%;
  background-color: var(--bu);
  box-shadow: 0 0 30px white;
  color: white;
  text-align: center;
  line-height: 3.9;
  cursor: pointer;
  outline: 0;
}

.floating-btn:hover {
  animation: flicker 2s infinite alternate;
}

.circular-menu.active .floating-btn {
  box-shadow: 10px white;
}

.circular-menu .floating-btn:active {
  box-shadow: 0 4px 8px 0 hsla(0, 0%, 0%, .4);
}

.circular-menu .floating-btn i {
  font-size: 1.3em;
  transition: transform .2s;
}

.circular-menu.active .floating-btn i {
  transform: rotate(-180deg);
}

.circular-menu:after {
  display: block;
  content: ' ';
  width: 3.5em;
  height: 3.5em;
  border-radius: 50%;
  position: absolute;
  top: 0;
  right: 0;
  z-index: -2;
  background-color: var(--bu);
  transition: all .3s ease;
  box-shadow: 0 0 30px white;
}

.circular-menu.active:after {
  transform: scale3d(5.5, 5.5, 1);
  transition-timing-function: cubic-bezier(.68, 1.55, .265, 1);
}

.circular-menu .items-wrapper {
  padding: 0;
  margin: 0;
}

.circular-menu .menu-item {
  position: absolute;
  top: .2em;
  right: .2em;
  z-index: -1;
  display: block;
  text-decoration: none;
  color: white;
  font-size: 1em;
  width: 3em;
  height: 3em;
  border-radius: 50%;
  text-align: center;
  line-height: 3;
  background-color: hsla(0,0%,0%,.1);
  transition: transform .3s ease, background .2s ease;
}

.circular-menu .menu-item:hover {
  background-color: hsla(0,0%,0%,.3);
  box-shadow: 0 0 30px white;
}

.circular-menu.active .menu-item {
  transition-timing-function: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.circular-menu.active .menu-item:nth-child(1) {
  transform: translate3d(1em,-7em,0);
}

.circular-menu.active .menu-item:nth-child(2) {
  transform: translate3d(-3.5em,-6.3em,0);
}

.circular-menu.active .menu-item:nth-child(3) {
  transform: translate3d(-6.5em,-3.2em,0);
}

.circular-menu.active .menu-item:nth-child(4) {
  transform: translate3d(-7em,1em,0);
}


/*flicker*/
@keyframes flicker {
  0%, 18%, 22%, 25%, 53%, 57%, 100% {
    box-shadow:
      0 0 6px #FFFFFF,
      0 0 20px #FFFFFF,
      0 0 34px #FFFFFF,
      0 0 64px #FFFFFF,
      0 0 92px #FFFFFF,
      0 0 112px #FFFFFF;
  }
  20%, 24%, 55% {
    box-shadow: none;
  }
}