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

body {
  font-family: Arial, sans-serif;
  background: #131313;
  color: #fff;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.5;
  }
  50% {
    opacity: 0.8;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  10%,
  30%,
  50%,
  70%,
  90% {
    transform: translateX(-10px);
  }
  20%,
  40%,
  60%,
  80% {
    transform: translateX(10px);
  }
}

@keyframes glitch {
  0% {
    text-shadow: 2px 2px #ff0000, -2px -2px #00ff00;
  }
  25% {
    text-shadow: -2px -2px #ff0000, 2px 2px #00ff00;
  }
  50% {
    text-shadow: 2px -2px #ff0000, -2px 2px #00ff00;
  }
  75% {
    text-shadow: -2px 2px #ff0000, 2px -2px #00ff00;
  }
  100% {
    text-shadow: 2px 2px #ff0000, -2px -2px #00ff00;
  }
}

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

@keyframes bloodDrip {
  0% {
    transform: translateY(-50px);
    opacity: 0;
  }
  20% {
    opacity: 1;
  }
  100% {
    transform: translateY(100vh);
    opacity: 0;
  }
}

.container {
  position: relative;
  z-index: 1;
  text-align: center;
  width: 100%;
  max-width: 1200px;
  padding: 20px;
}

h1 {
  font-family: "Creepster", cursive;
  font-size: 5em;
  color: #ae0f0e;
  margin-bottom: 20px;
  animation: float 3s ease-in-out infinite;
  letter-spacing: 5px;
}

.subtitle {
  font-family: "Nosifer", cursive;
  font-size: 1.5em;
  color: #ccc;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
  margin-bottom: 30px;
  opacity: 0.9;
}

#gameCanvas {
  border: 3px solid #ae0f0e;
  background: #131313;
  cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><circle cx="16" cy="16" r="8" fill="none" stroke="red" stroke-width="2"/><circle cx="16" cy="16" r="2" fill="red"/></svg>')
      16 16,
    crosshair;
  display: none;
  margin: 0 auto;
  max-width: 100%;
}

#startScreen {
  animation: fadeIn 1s ease-in;
}

.btn {
  font-family: "Creepster", cursive;
  font-size: 2em;
  padding: 20px 50px;
  background: #ae0f0e;
  color: #fff;
  border: 3px solid #ae0f0e;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;

  margin-top: 30px;
}

.btn:hover {
  background: linear-gradient(145deg, #a00000, #700000);
  box-shadow: 0 8px 25px rgba(255, 0, 0, 0.8),
    inset 0 -3px 10px rgba(0, 0, 0, 0.5);
  transform: translateY(-3px);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 3px 10px rgba(139, 0, 0, 0.6),
    inset 0 -3px 10px rgba(0, 0, 0, 0.5);
}

.stats {
  display: none;
  justify-content: space-around;
  margin-top: 20px;
  font-size: 1.5em;
  font-weight: bold;
  background: #131313;
  padding: 15px;
  border-radius: 10px;
  border: 2px solid #8b0000;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.stat-label {
  color: #ae0f0e;
}

.stat-value {
  color: #fff;
  font-size: 1.2em;
}

.lives {
  color: #ff0000;
  font-size: 1.5em;
}

#gameOver {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #131313;
  padding: 50px;
  border: 5px solid #ff0000;
  border-radius: 20px;
  z-index: 100;
  text-align: center;
  animation: fadeIn 0.5s ease-in;
}

#gameOver h2 {
  font-family: "Nosifer", cursive;
  font-size: 3em;
  color: #ff0000;
  margin-bottom: 20px;
  animation: glitch 1s infinite;
}

#gameOver p {
  font-size: 1.5em;
  margin: 15px 0;
  color: #ae0f0e;
}

.blood-drip {
  position: absolute;
  width: 3px;
  height: 30px;
  background: linear-gradient(to bottom, #8b0000, #ff0000);
  animation: bloodDrip 3s linear;
  border-radius: 0 0 50% 50%;
}

.shake {
  animation: shake 0.5s;
}

.instructions {
  background: #131313;
  padding: 20px;
  margin-top: 20px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.instructions h3 {
  font-family: "Creepster", cursive;
  color: #ae0f0e;
  margin-bottom: 15px;
  font-size: 1.8em;
}

.instructions ul {
  list-style: none;
  padding: 0;
}

.instructions li {
  margin: 10px 0;
  padding-left: 25px;
  position: relative;
  color: #ccc;
}

@media (max-width: 768px) {
  h1 {
    font-size: 3em;
  }

  .subtitle {
    font-size: 1em;
  }

  .btn {
    font-size: 1.5em;
    padding: 15px 30px;
  }

  .stats {
    font-size: 1em;
    flex-wrap: wrap;
    gap: 10px;
  }

  .stat-item {
    font-size: 0.9em;
  }

  .instructions {
    font-size: 0.9em;
    padding: 15px;
  }

  .instructions h3 {
    font-size: 1.4em;
  }

  .instructions li {
    font-size: 0.85em;
    margin: 8px 0;
  }

  #gameOver {
    padding: 30px;
    width: 90%;
    max-width: 400px;
  }

  #gameOver h2 {
    font-size: 2em;
  }

  #gameOver p {
    font-size: 1.2em;
  }

  #gameCanvas {
    touch-action: none; /* Previne scroll ao tocar no canvas */
  }
}