:root {
  --page-bg-start: #020617;
  --page-bg-end: #111827;

  --board-bg: #0f172a;
  --accent: #99e99c;
  --accent-hover: #7ddf82;

  --text-color: #f9fafb;
  --dark-text: #020617;

  --board-shadow: rgba(153, 233, 156, 0.35);
  --text-shadow: rgba(153, 233, 156, 0.55);
}

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

body {
  min-height: 100vh;
  background:
    radial-gradient(
      circle at center,
      rgba(153, 233, 156, 0.08),
      transparent 35%
    ),
    linear-gradient(135deg, var(--page-bg-start), var(--page-bg-end));
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-layout {
  width: min(1100px, 95vw);
  display: grid;
  grid-template-columns: 280px minmax(400px, 500px) 230px;
  align-items: center;
  justify-content: center;
  gap: clamp(2rem, 3vw, 3rem);
}

.welcome-area {
  width: 100%;
  max-width: 280px;
  justify-self: center;
}

.snake-area {
  width: 100%;
  max-width: 230px;
  justify-self: center;
}

.welcome-area img,
.snake-area img {
  display: block;
  width: 100%;
  height: auto;
}

#gameContainer {
  display: flex;
  flex-direction: column;
  align-items: center;
}

#gameBoard {
  background-color: var(--board-bg);
  border: 3px solid var(--accent);
  border-radius: 10px;
  box-shadow: 0 0 35px var(--board-shadow);
}

#scoreText {
  font-family: "Permanent Marker", cursive;
  font-size: 80px;
  color: var(--text-color);
  text-shadow: 0 0 14px var(--text-shadow);
}

#resetBtn {
  font-family: "Permanent Marker", cursive;
  font-size: 22px;
  width: 120px;
  height: 50px;
  border: none;
  border-radius: 14px;
  cursor: pointer;
  background-color: var(--accent);
  color: var(--dark-text);
  box-shadow:
    0 6px 0 #4f9f58,
    0 0 16px rgba(153, 233, 156, 0.35);
}

#resetBtn:hover {
  transform: translateY(3px);
  background-color: var(--accent-hover);
  box-shadow:
    0 3px 0 #4f9f58,
    0 0 22px rgba(153, 233, 156, 0.55);
}

@media (max-width: 1100px) {
  body {
    align-items: flex-start;
    padding: 2rem 1rem;
  }

  .page-layout {
    width: min(520px, 100%);
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .welcome-area {
    max-width: 280px;
  }

  .snake-area {
    max-width: 200px;
  }

  #gameBoard {
    width: min(500px, 100%);
    height: auto;
  }
}