body {
  height: 100vh;
  width: 100vw;
  display: flex;
  flex-direction: column; /* Arrange children in a column */
  align-items: center;
  justify-content: center;
  margin: 0;
  background: linear-gradient(to bottom right, #ff6f00, #ff5722); /* Fire-like gradient */
  font-family: 'Press Start 2P', cursive; /* Classic pixel font */
}

#game-board {
  background: rgba(255, 255, 255, 0.4); /* Slightly more transparent */
  margin-top: -80px;
  width: 95%;
  height: calc(95% - 60px); /* Adjust height to account for footer */
  display: grid;
  grid-template-rows: repeat(35, 1fr);
  grid-template-columns: repeat(35, 1fr);
  border: 5px solid #ff3d00; /* Fiery orange border */
  border-radius: 12px; /* Rounded corners */
  transition: none;
  box-shadow: 0 0 20px rgba(255, 69, 0, 0.7); /* Fiery shadow */
}

.snake {
  background: linear-gradient(to bottom, #00aaff, #0066cc); /* Water-like gradient */
  border-radius: 0.5vmin;
  box-shadow: 0 0 6px rgba(0, 0, 255, 0.5); /* Water reflection effect */
}

.food {
  position: relative;
  width: 100%;
  height: 100%;
}

.food::before {
  content: "🔥"; /* Fire emoji */
  font-size: vmin; /* Larger size for emphasis */
  color: #ffeb3b; /* Bright yellow to simulate flame */
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.popup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8); /* Darker overlay */
  display: none; /* Hide the popup by default */
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.5s ease-in-out; /* Fade-in effect */
}

.popup-content {
  background: #ff6f00; /* Fiery orange */
  padding: 20px;
  border-radius: 10px;
  text-align: center;
  color: #fff; /* White text for contrast */
  box-shadow: 0 0 10px rgba(255, 69, 0, 0.8); /* Fiery shadow */
}

#restart-button {
  background: #ff5722; /* Fiery red */
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.3s ease; /* Smooth transition */
}

#restart-button:hover {
  background: #d84315; /* Darker red on hover */
}

/* Fade-in animation for the popup */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

footer {
  background: #333;
  color: #fff;
  text-align: center;
  padding: 10px 0;
  position: fixed;
  bottom: 0;
  width: 100%;
  font-family: 'Press Start 2P', cursive; /* Match the game font */
  z-index: 1000; /* Ensure it is above other content */
}

footer p {
  margin: 5px 0;
}

footer a {
  color: #ffeb3b; /* Base bright yellow color */
  text-decoration: none;
  background: linear-gradient(45deg, #ff6f00, #ff5722, #ffeb3b);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  animation: flameEffect 2s infinite linear;
  text-shadow: 0 0 8px rgba(255, 215, 0, 0.7), 0 0 15px rgba(255, 69, 0, 0.7), 0 0 20px rgba(255, 0, 0, 0.7);
}

@keyframes flameEffect {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

footer a:hover {
  text-decoration: underline;
}