html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  color: rgba(255, 255, 255, 0.87);
  background-color: #0f0f0f;
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
  user-select: none;
  overscroll-behavior: none;
}

/* No flexbox here: Phaser's autoCenter CENTER_BOTH does the centering.
   100vh is the fallback; 100svh (small viewport = toolbars always expanded)
   keeps the FIT canvas inside the visible area on iOS Safari, where 100vh is
   the large viewport and would push the bottom behind the toolbar after a
   portrait→landscape rotation. Avoid 100dvh + flex (stale height on Chrome
   Android). iOS < 15.4 has no svh: main.ts `fitViewport()` patches it. */
#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  /* biome-ignore lint/suspicious/noDuplicateProperties: 100svh fallback overrides 100vh on browsers that support it */
  height: 100svh;
  overflow: hidden;
  touch-action: none;
}

#game-container {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

#app canvas {
  display: block;
  touch-action: none;
}

#rotate {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 14px;
  background: #05060d;
  font-family: monospace;
  text-align: center;
}

/* CSS-only phone outline that turns to landscape (rotation hint). */
.rotate-phone {
  width: 70px;
  height: 120px;
  border: 4px solid #39d0ff;
  border-radius: 14px;
  box-shadow: 0 0 18px #39d0ff;
  animation: phone-turn 2.6s ease-in-out infinite;
}

@keyframes phone-turn {
  0%,
  15% {
    transform: rotate(0deg);
  }

  55%,
  80% {
    transform: rotate(-90deg);
  }

  100% {
    transform: rotate(0deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .rotate-phone {
    animation: none;
    transform: rotate(-90deg);
  }
}

.rotate-title {
  font-size: 28px;
  letter-spacing: 2px;
  color: #39d0ff;
}

.rotate-sub {
  font-size: 18px;
  letter-spacing: 3px;
  color: #8b90a6;
}

@media (orientation: portrait) {
  #rotate {
    display: flex;
  }
}