.whatsapp-float {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    background-color: #25D366;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
    transition: background-color .2s;
    cursor: pointer;
    position: fixed;
  }

  .whatsapp-float:hover {
    background-color: #20b858;
  }

  .whatsapp-float svg {
    width: 32px;
    height: 32px;
  }

  .whatsapp-tooltip {
    position: absolute;
    right: calc(100% + 10px);
    top: 50%;
    transform: translateY(-50%) scale(0.8);
    background: #fff;
    color: #333;
    padding: 6px 12px;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease, transform .3s ease;
  }

  .whatsapp-tooltip::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -6px;
    transform: translateY(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: transparent transparent transparent #fff;
  }

  .whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateY(-50%) scale(1);
  }