.zwcb-container {
  position: fixed;
  bottom: 20px;
  z-index: 9999;
}
.zwcb-pos-right { right: 20px; }
.zwcb-pos-left { left: 20px; }

.zwcb-button {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0,0,0,0.3);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
  text-decoration: none;
}
.zwcb-button:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 12px rgba(0,0,0,0.4);
}

.zwcb-button img {
  width: 70%;
  height: auto;
}

.zwcb-text {
  position: absolute;
  white-space: nowrap;
  padding: 5px 10px;
  border-radius: 6px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.zwcb-text-top    { bottom: 100%; margin-bottom: 5px; left: 50%; transform: translateX(-50%); }
.zwcb-text-bottom { top: 100%; margin-top: 5px; left: 50%; transform: translateX(-50%); }
.zwcb-text-left   { right: 100%; margin-right: 5px; top: 50%; transform: translateY(-50%); }
.zwcb-text-right  { left: 100%; margin-left: 5px; top: 50%; transform: translateY(-50%); }

.zwcb-text-hover { display: none; }
.zwcb-button:hover .zwcb-text-hover { display: flex; }