.toast-stack{
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 100000;
    display: grid;
    gap: 10px;
  }
  
  .toast{
    padding: 14px 16px;
    border-radius: 14px;
    color: #fff;
    background: rgba(17,17,17,0.92);
    box-shadow: 0 12px 30px rgba(0,0,0,0.22);
    max-width: min(420px, 92vw);
  }
  
  .toast-success{ background: rgba(18,167,203,0.95); }
  .toast-error{ background: rgba(176,0,32,0.95); }