:root { color-scheme: dark; }

@media (min-width: 821px) {
  body {
    background: radial-gradient(circle at 50% 5%, rgba(59,130,246,.18), transparent 28%), #060816 !important;
  }

  #root {
    width: min(430px, 100%);
    min-height: 100vh;
    margin: 0 auto;
    overflow: hidden;
    border-left: 1px solid rgba(96,165,250,.18);
    border-right: 1px solid rgba(96,165,250,.18);
    box-shadow: 0 0 90px rgba(0,0,0,.72);
  }
}

button, a { -webkit-tap-highlight-color: transparent; }