:root {
  /* Background Color */
  --bg-primary-color: #161616;
  --bg-snake-color: #3c903f;
  --bg-food-color: #f44336;

  /* Text Color */
  --txt-primary-color: #f1f1f1;

  /* Spacing Variables */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 20px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 40px;

  /* Border Color */
  --border-primary-color: #3b3737;

  /* Border Radius Variables */
  --brdr-xs: 5px;
  --brdr-sm: 10px;
  --brdr-md: 15px;
  --brdr-lg: 20px;
  --brdr-xl: 25px;
  --brdr-2xl: 30px;
  --brdr-3xl: 35px;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "helvetica neue";
}
html,
body {
  height: 100%;
  width: 100%;
}
main {
  height: 100%;
  width: 100%;
  background-color: var(--bg-primary-color);
  color: var(--txt-primary-color);
  padding: var(--space-3xl) calc(2 * var(--space-3xl));
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
main .info-area {
  display: flex;
  justify-content: space-between;
}
main .info-area .info-box {
  border: 2px solid var(--border-primary-color);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--brdr-md);
}
main .play-area {
  border: 1px solid var(--border-primary-color);
  flex-grow: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
  grid-template-rows: repeat(auto-fill, minmax(50px, 1fr));
}
main .play-area .cell {
  height: 50px;
  width: 50px;
  border: 1px solid var(--border-primary-color);
}
.btn {
  padding: var(--space-sm) var(--space-md);
  border: none;
  border-radius: var(--brdr-md);
  cursor: pointer;
  font-size: 1.15rem;
  transition: all 0.3s ease;
}
.btn:hover {
  transform: scale(1.1);
}
.snake {
  background-color: var(--bg-snake-color);
}
.food {
  background-color: var(--bg-food-color);
}
.modal {
  height: 100vh;
  width: 100vw;
  position: fixed;
  top: 0;
  left: 0;
  background-color: rgba(52, 49, 49, 0.724);
  backdrop-filter: blur(5px);
  display: flex;
  justify-content: center;
  align-items: center;
}
.modal .start-game,
.modal .restart-game {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}
.modal .restart-game {
  display: none;
}