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

body {
  font-family: 'Arial', sans-serif;
  background: #0a0a0a;
  color: #ffffff;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.game-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

#gameCanvas {
  display: block;
  background: #0a0a0a;
  border: 1px solid #1a1a1a;
}

.ui-panel {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.timer {
  font-size: 32px;
  font-weight: bold;
  color: #4ade80;
  text-shadow: 0 0 10px rgba(74, 222, 128, 0.5);
}

.timer.warning {
  color: #f87171;
  text-shadow: 0 0 10px rgba(248, 113, 113, 0.5);
}

.timer.critical {
  color: #ef4444;
  animation: pulse 0.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.objective {
  font-size: 18px;
  color: #94a3b8;
}

.status {
  font-size: 14px;
  color: #64748b;
}

.reveal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 10, 10, 0.95);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 100;
  flex-direction: column;
}

.reveal-overlay.visible {
  display: flex;
}

.reveal-message {
  font-size: 120px;
  font-weight: bold;
  color: #ffffff;
  text-shadow: 0 0 30px rgba(255, 255, 255, 0.8);
  animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}