@media (min-width: 768px) {
  html { background: #f0f0f0; }
  body {
    max-width: 412px !important;
    max-height: 915px !important;
    margin: 30px auto !important;
    border-radius: 24px !important;
    overflow: hidden !important;
    overflow-y: auto !important;
    box-shadow:
      0 0 0 4px #1a1a1a,
      0 0 0 6px #333,
      0 30px 80px rgba(0,0,0,0.3) !important;
    position: relative !important;
  }
  body::-webkit-scrollbar { display: none; }
  #root {
    max-height: 915px !important;
    overflow-y: auto !important;
    border-radius: 24px !important;
  }
  #root::-webkit-scrollbar { display: none; }
}