* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #0C0D14;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  overflow: hidden;
  color: #E0E0E0;
}

#hud {
  display: flex;
  gap: 40px;
  padding: 12px 24px;
  margin-bottom: 10px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

#hud span {
  text-transform: uppercase;
  font-size: 14px;
}

#score {
  color: #4FC3F7;
}

#level {
  color: #AED581;
}

#lives {
  color: #FF8A65;
}

#gameCanvas {
  border-radius: 6px;
  box-shadow: 0 0 40px rgba(79, 195, 247, 0.1);
  display: block;
}

#message {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background: rgba(12, 13, 20, 0.85);
  z-index: 10;
  pointer-events: all;
}

#message.visible {
  display: flex;
}

#message h1 {
  font-size: 48px;
  margin-bottom: 12px;
  text-shadow: 0 0 20px currentColor;
}

#message p {
  font-size: 18px;
  opacity: 0.7;
}

#message .win {
  color: #AED581;
}

#message .lose {
  color: #FF8A65;
}

#message .launch {
  color: #4FC3F7;
}