#panel-menu {
  position: fixed;
  top: 1rem;
  left: 1rem;
  background-color: #000000;
  opacity: 0.6;
  z-index: 1500;
  color: #FFFFFF;
  border-radius: 25px;
  transition: border-radius 0.3s ease-in-out, opacity 0.3s ease-in-out;
}

#panel-menu.active {
  border-radius: 0;
  opacity: 1;
}

#panel-menu .container {
  padding: 0.5rem;
  width: 40px;
  height: 40px;
  transition: width 0.3s ease-in-out, height 0.3s ease-in-out;
  overflow: hidden;
}

#panel-menu .container.active {
  width: 200px;
  height: auto;
}

#panel-menu .btn-toggle {
  cursor: pointer;
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
}
#panel-menu .btn-toggle svg {
  padding: 0.75rem;
  fill: #FFFFFF;
}

#panel-menu .container .list {
  opacity: 0;
  height: 0;
  overflow: hidden;
  margin-top: 30px;
  transition: opacity 0.3s ease-in-out, height 0.3s ease-in-out;
}

#panel-menu .container.active .list {
  opacity: 1;
  height: auto;
}

#panel-menu .list .item {
  padding-top: 0.5rem;
}

#panel-menu .list .item {
  display: block;
  color: #FFFFFF;
  text-decoration: none;
}

#panel-menu .list .item:hover {
  color: #51A8E4;
}