:root {
  color-scheme: light;
  font-family: Arial, Helvetica, sans-serif;
  background: #0f1115;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(66, 93, 127, 0.35), transparent 30%),
    #0f1115;
  color: #fff;
}

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
  padding: 16px;
}

.screen-stage {
  position: relative;
  width: min(100%, 1440px);
  aspect-ratio: 2880 / 1800;
  margin: 0 auto;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
  background: #101418;
}

.screen-image {
  display: block;
  width: 100%;
  height: 100%;
}

.hotspot {
  position: absolute;
  border: 2px dashed rgba(72, 155, 255, 0.9);
  border-radius: 18px;
  background: rgba(72, 155, 255, 0.12);
  cursor: pointer;
  opacity: 0;
  transition: opacity 120ms ease;
}

.hotspot.is-active,
.hotspot:focus-visible {
  opacity: 1;
}

.controls {
  width: min(100%, 1440px);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.control-button {
  border: 0;
  border-radius: 999px;
  padding: 10px 16px;
  background: #ffffff;
  color: #111;
  font-size: 14px;
  cursor: pointer;
}

.hint {
  margin: 0;
  color: rgba(255, 255, 255, 0.75);
  font-size: 13px;
}

@media (max-width: 800px) {
  .app-shell {
    padding: 10px;
  }

  .controls {
    flex-direction: column;
    align-items: flex-start;
  }
}