#fcb-buttons { position: fixed; bottom: 80px; z-index: 9999; }
#fcb-buttons.right { right:20px; }
#fcb-buttons.left { left:20px; }

.fcb-main-button { width:60px; height:60px; border-radius:50%; background:#0084ff; display:flex; justify-content:center; align-items:center; cursor:pointer; box-shadow:0 4px 8px rgba(0,0,0,0.2); position: relative; z-index:2; }
.fcb-main-button:hover { transform: scale(1.1); }

.fcb-sub-buttons { position:absolute; top:50%; left:50%; transform:translate(-50%, -50%); pointer-events:none; }
.fcb-sub-buttons a { width:50px; height:50px; border-radius:50%; display:flex; justify-content:center; align-items:center; color:white; text-decoration:none; box-shadow:0 3px 6px rgba(0,0,0,0.2); position:absolute; opacity:0; transition: all 0.4s; pointer-events:auto; }
.fcb-sub-buttons a img { width:25px; height:25px; }

.fcb-sub-buttons.active a:nth-child(1) { transform: translate(-80px, -40px); opacity:1; }
.fcb-sub-buttons.active a:nth-child(2) { transform: translate(0px, -100px); opacity:1; }
.fcb-sub-buttons.active a:nth-child(3) { transform: translate(80px, -40px); opacity:1; }