body {
  margin: 0;
  background-color: #000;
  font-family: 'Orbitron', sans-serif;
  overflow: hidden;
}

#backgroundCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

#gameContainer {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  position: relative;
  z-index: 1;
}

#gameCanvas {
  border: 2px solid #00ff7f; /* Verde neon mais vibrante */
  box-shadow: 0 0 20px #00ff7f, inset 0 0 10px rgba(0, 255, 127, 0.5);
  background: transparent;
}

#highScoreFormContainer {
  position: absolute;
  background-color: rgba(10, 4, 13, 0.95);
  color: #f0f6fc;
  border: 2px solid #00ff7f;
  box-shadow: 0 0 15px #00ff7f;
  padding: 25px;
  text-align: center;
  border-radius: 15px;
}

#highScoreFormContainer.hidden {
  display: none;
}

#highScoreFormContainer h2 {
    color: #00ff7f;
    text-shadow: 0 0 8px #00ff7f;
}

#highScoreFormContainer input {
  background-color: #0a040d;
  color: #f0f6fc;
  border: 1px solid #00ff7f;
  padding: 10px;
  font-size: 20px;
  text-transform: uppercase;
  width: 120px;
  text-align: center;
  font-family: 'Orbitron', sans-serif;
  margin-right: 10px;
  border-radius: 5px;
}

#highScoreFormContainer button {
  background-color: #00ff7f;
  color: #0a040d;
  border: none;
  border-radius: 5px;
  padding: 11px 20px;
  font-size: 18px;
  font-weight: bold;
  cursor: pointer;
  font-family: 'Orbitron', sans-serif;
  transition: all 0.2s ease;
}

#highScoreFormContainer button:hover {
    box-shadow: 0 0 10px #fff;
}