.auth-modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
  }
  
  .auth-modal.hidden {
    display: none;
  }
  
  .auth-modal-content {
    background: #111;
    padding: 32px;
    border-radius: 12px;
    width: 340px;
    text-align: center;
    border: 1px solid #222;
  }