.toolbar {
  margin: 0 0 1rem 1rem;
  /* on icons are hidden by default */

  .icon {
    position: relative;
    font-size: 24px;
    color: #fff;
    width: 48px;
    height: 48px;
    border-radius: 48px;
    box-shadow: 2px 2px 24px #444;
    transition: all .1s;
    transition-timing-function: ease-in-out;

    &::before {
      position: absolute;
      left: 1px;
      right: 0;
      text-align: center;
      top: 12px;
    }

    &.on {
      display: none;
    }

  }

  .tooltip {
    margin-left: 0.5rem;
    opacity: 0;
    visibility: hidden;
    color: white;
    text-shadow: 0 0 5px black;
    transition: opacity 200ms ease-in 25ms, transform 100ms ease-in;
    transform: translateX(-100%);
    z-index: 0;
  }

  .button {
    text-decoration: none;
    display: flex;
    flex-direction: row;
    align-items: center;
    cursor: pointer;

    &:hover {
      .icon {
        box-shadow: 4px 4px 48px #666;
        cursor: pointer;
        background-color: #407cf7;
      }
      .icon.icon-call_end {
        background-color: #dd2c00;
      }
      .tooltip {
        opacity: 1;
        visibility: visible;
        transform: translateX(0);
      }
    }
    &.on .icon {
      background: lighten(#407cf7, 10%);
      &.on {
        display: inherit;
      }
      &.off {
        display: none;
      }
    }
  }

  .button + .button {
    margin-top: 1rem;
  }

  .chat {
    &[data-blink="true"] .icon {
      -webkit-animation: bg-blink 1s infinite;
      -moz-animation: bg-blink 1s infinite;
      animation: bg-blink 1s infinite;
    }
  }

}

@-webkit-keyframes bg_blink {
  50% {
    background-color: #407cf7;
  }

  99% {
    background-color: #407cf7;
  }
}

@-moz-keyframes bg-blink {
  50% {
    background-color: #407cf7;
  }

  99% {
    background-color: #407cf7;
  }
}

@keyframes bg-blink {
  50% {
    background-color: #407cf7;
  }

  99% {
    background-color: #407cf7;
  }
}