*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body,
#root {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #0a0a0a;
}
/* App-level styles — layout only */
.app {
  position: relative;
  width: 100vw;
  height: 100vh;
  background: #0a0a0a;
  overflow: hidden;
}