html, body {
  margin: 0; padding: 0; width: 100%; height: 100%;
  overflow: hidden; background: #002B50;
  -webkit-tap-highlight-color: transparent;
}

/* ------------------------------------------------------------- игра */
#game-container {
  position: absolute; left: 50%; top: 50%;
  display: none; overflow: hidden;
}
#game {
  display: block; width: 100%; height: 100%;
  background: #002B50;
}

/* --------------------------------------------------------- загрузка */
#loader {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  color: #fff;
}
#progress-bar {
  width: 60%; max-width: 420px; height: 12px;
  background: rgba(255, 255, 255, .18);
  border-radius: 999px; overflow: hidden;
}
#progress-fill {
  width: 0%; height: 100%;
  background: #fff; border-radius: 999px;
  transition: width .18s linear;
}
#progress-amount {
  margin-top: 12px; font-size: 15px;
  letter-spacing: .3px; text-shadow: 0 1px 3px rgba(0, 0, 0, .5);
}