@media (max-width: 768px) {
    footer {
      flex-direction: column;
      gap: 0.6rem;
      padding: 1rem;
    }
  
    .contact-button,
    .phone-text {
      min-width: 100%;
    }
  
    .sheet-table {
      font-size: 0.85rem;
    }
  
    .sheet-table th,
    .sheet-table td {
      padding: 8px 12px;
      white-space: normal;
      min-width: auto;
    }
  }