* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

body {
  background: #1a1a2e;
  color: #eee;
  font-family: system-ui, -apple-system, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100dvh;
  overflow: hidden;
  touch-action: none;
}

#game-wrapper {
  position: relative;
  width: 100%;
  max-width: 500px;
  height: 100dvh;
  max-height: 900px;
  touch-action: none;
  background: #87CEEB;
}

#hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  padding: 10px 14px;
  font-size: 1rem;
  font-weight: bold;
  background: linear-gradient(180deg, rgba(0,0,0,0.5) 0%, transparent 100%);
}

#score { color: #ffd700; }
#shots { color: #fff; }
#level { color: #70a1ff; }

canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

#overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.7);
  z-index: 20;
  gap: 12px;
  padding: 24px;
}

#overlay.hidden { display: none; }

#overlay-title {
  font-size: 2rem;
  color: #ffd700;
  font-weight: bold;
}

#overlay-sub {
  font-size: 1rem;
  color: #ccc;
  text-align: center;
}

#btn-next {
  padding: 14px 48px;
  font-size: 1.2rem;
  border: none;
  border-radius: 12px;
  background: #e94560;
  color: #fff;
  cursor: pointer;
  margin-top: 8px;
}

#btn-next:active { opacity: 0.7; }