:root {
  color-scheme: dark;
  background: #03112a;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  display: grid;
  min-height: 100svh;
  place-items: center;
  overflow: hidden;
  background: #03112a;
  font-family: Arial, sans-serif;
}

/* Contenedor vertical 9:16. El alto se adapta sin que el teléfono se recorte. */
.stage {
  width: min(100vw, calc(100svh * 9 / 16));
  aspect-ratio: 9 / 16;
}

.phone-demo {
  position: relative;
  width: 100%;
  height: 100%;
}

/* Estas proporciones corresponden exactamente al hueco transparente de iphoneuba.png. */
.screen {
  position: absolute;
  z-index: 1;
  top: 8.65%;
  left: 15.46%;
  width: 67.22%;
  height: 80.75%;
  overflow: hidden;
  border-radius: 7% / 3.5%;
  background: #fff;
}

.screen iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
}

.phone-frame {
  position: absolute;
  z-index: 2;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  user-select: none;
}

@media (max-width: 600px) {
  .stage {
    width: 100vw;
  }
}