body {
  margin: 0;
  font-family: 'Courier New', monospace;
  background-color: #4B3621;
  color: #E8D8A9;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  min-height: 100vh;
  transition: background-color 0.5s ease;
}

.nav {
  width: 100%;
  background-color: #2C1A0F;
  padding: 20px;
  text-align: center;
  box-shadow: 0px 5px 10px rgba(0, 0, 0, 0.7);
}

.nav a {
  color: #FFF8DC;
  text-decoration: none;
  font-size: 22px;
  margin: 0 15px;
  padding: 10px;
  border: 2px solid #6A4F2B;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.nav a:hover {
  background-color: #6A4F2B;
}

.container {
  background-color: #3E2C1B;
  border: 10px solid #2C1A0F;
  padding: 50px;
  border-radius: 15px;
  box-shadow: 5px 5px 20px rgba(0, 0, 0, 0.7);
  width: 90%;
  max-width: 800px;
  text-align: center;
  position: relative;
  margin-top: 20px;
}

h1 {
  color: #E8D8A9;
  font-size: 60px;
  text-shadow: 4px 4px 0px #1A120B;
}

p {
  font-size: 22px;
  line-height: 1.6;
  color: #FFF8DC;
  text-shadow: 2px 2px 0px #1A120B;
}

.button {
  display: inline-block;
  padding: 15px 30px;
  background-color: #6A4F2B;
  border: 5px solid #2C1A0F;
  color: #FFF8DC;
  font-size: 20px;
  text-decoration: none;
  margin: 15px;
  box-shadow: 3px 3px 0px #1A120B;
  transition: background-color 0.3s ease;
  cursor: pointer;
}

.button:hover {
  background-color: #8C7250;
}

.button.active {
  background-color: #D9534F;
  /* Active color for the button */
}

.stone-line {
  width: 100%;
  height: 5px;
  background-color: #2C1A0F;
  margin: 20px 0;
  box-shadow: 0px 4px 0px #1A120B;
}

.symbol-container {
  display: flex;
  justify-content: space-around;
  margin: 30px 0;
}

.symbol {
  font-size: 50px;
  text-shadow: 3px 3px 0px #1A120B;
  animation: flicker 3s infinite;
}

@keyframes flicker {

  0%,
  100% {
      opacity: 1;
  }

  50% {
      opacity: 0.5;
  }
}

.fade-in {
  opacity: 0;
  animation: fadeIn 2s forwards;
}

@keyframes fadeIn {
  to {
      opacity: 1;
  }
}

.points-display,
.high-score-display,
.timer-display,
.multiplier-display {
  font-size: 30px;
  margin-top: 20px;
  color: #FFF8DC;
  text-shadow: 3px 3px 0px #1A120B;
}

.timer-display {
  font-size: 24px;
}