/* Extracted from index.html inline <style> block 01. */
      #whatsapp-button {
        position: fixed;
        left: 20px;
        bottom: 20px;
        display: none;
        z-index: 1000;
      }
      #whatsapp-button img {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        transition: transform 0.3s ease;
      }
      #whatsapp-button img:hover {
        transform: scale(1.1);
      }