@charset "UTF-8";
:root {
  --primary-background-color: #222;
  --primary-board-color: whitesmoke;
  --primary-snake-color: rgb(83, 233, 83);
  --primary-food-color: crimson;
  --primary-text-color: #fff;
  --unit-xxsm: 0.5px;
  --unit-xsm: 4px;
  --unit-sm: 8px;
  --unit-m: 16px;
  --unit-l: 32px;
  --unit-xl: 48px;
  --unit-xxl: 96px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS", sans-serif;
  font-weight: 300;
}

html,
body {
  height: 100%;
  width: 100%;
  background: var(--primary-background-color);
  color: var(--primary-text-color);
}

#container {
  height: 100%;
  width: 100%;
  background: var(--primary-background-color);
  display: flex;
  align-items: center;
  justify-content: center;
}
#container #gameboard {
  height: 95%;
  width: 95%;
  background: url(../assets/img/background.jpg);
  background-position: center;
  background-size: cover;
  border-radius: var(--unit-xsm);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--unit-xl), 1fr));
  grid-template-rows: repeat(auto-fill, minmax(var(--unit-xl), 1fr));
}
#container #gameboard .block {
  box-sizing: border-box;
}
#container #gameboard {
  /* =========================
  🐍 SNAKE BODY
  ========================= */
}
#container #gameboard .snake {
  background: linear-gradient(135deg, #4caf50, #2e7d32);
  border-radius: 12px;
  margin: 2px;
}
#container #gameboard {
  /* =========================
  🐍 SNAKE HEAD
  ========================= */
}
#container #gameboard .snake-head {
  position: relative;
  border-radius: 50%;
  background: linear-gradient(135deg, #81c784, #1b5e20);
}
#container #gameboard {
  /* =========================
  👀 EYES (2 pseudo elements)
  - before = left eye
  - after = right eye
  ========================= */
}
#container #gameboard .snake-head::before,
#container #gameboard .snake-head::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  /* white eye with black pupil effect */
  background: white;
  box-shadow: inset -3px -3px 0 black;
  animation: blink 2s infinite;
}
#container #gameboard {
  /* default (facing right) */
}
#container #gameboard .snake-head::before {
  top: 8px;
  left: 8px;
}
#container #gameboard .snake-head::after {
  top: 8px;
  right: 8px;
}
#container #gameboard {
  /* =========================
  👀 BLINK ANIMATION
  ========================= */
}
@keyframes blink {
  0%, 90%, 100% {
    transform: scaleY(1);
  }
  95% {
    transform: scaleY(0.2);
  }
}
#container #gameboard {
  /* =========================
  🔄 DIRECTION-BASED EYES
  ========================= */
  /* RIGHT (default, optional) */
}
#container #gameboard .snake-head.right::before {
  top: 8px;
  left: 8px;
}
#container #gameboard .snake-head.right::after {
  top: 8px;
  right: 8px;
}
#container #gameboard {
  /* LEFT */
}
#container #gameboard .snake-head.left::before {
  top: 8px;
  left: 8px;
}
#container #gameboard .snake-head.left::after {
  top: 8px;
  right: 8px;
}
#container #gameboard {
  /* UP */
}
#container #gameboard .snake-head.up::before {
  top: 4px;
  left: 10px;
}
#container #gameboard .snake-head.up::after {
  top: 4px;
  right: 10px;
}
#container #gameboard {
  /* DOWN */
}
#container #gameboard .snake-head.down::before {
  bottom: 4px;
  left: 10px;
}
#container #gameboard .snake-head.down::after {
  bottom: 4px;
  right: 10px;
}
#container #gameboard {
  /* =========================
  🍎 FOOD
  ========================= */
}
#container #gameboard .food {
  background: radial-gradient(circle, red, darkred);
  border-radius: 50%;
}
#container #gameboard {
  /* =========================
  👅 TONGUE (REAL ELEMENT, not pseudo)
  ⚠️ You must create <div class="tongue">
  ========================= */
}
#container #gameboard .tongue {
  position: absolute;
  width: 4px;
  height: 12px;
  background: red;
  top: 50%;
  left: 100%;
  transform: translateY(-50%) scaleY(0);
  transform-origin: top;
  animation: tongueFlick 0.4s infinite;
}
#container #gameboard {
  /* =========================
  👅 TONGUE ANIMATION
  ========================= */
}
@keyframes tongueFlick {
  0%, 100% {
    transform: translateY(-50%) scaleY(0);
  }
  50% {
    transform: translateY(-50%) scaleY(1);
  }
}
#container #gameboard {
  /* =========================
  🔄 TONGUE DIRECTION
  ========================= */
}
#container #gameboard .snake-head.left .tongue {
  left: auto;
  right: 100%;
}
#container #gameboard .snake-head.up .tongue {
  left: 50%;
  top: 0;
  transform: translateX(-50%) rotate(-90deg) scaleY(0);
}
#container #gameboard .snake-head.down .tongue {
  left: 50%;
  bottom: 0;
  top: auto;
  transform: translateX(-50%) rotate(90deg) scaleY(0);
}

/* =========================
   🎮 OVERLAY BASE
========================= */
.overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  z-index: 10;
  visibility: hidden;
  opacity: 0;
  transition: 0.3s ease;
  backdrop-filter: blur(5px);
}

/* show overlay */
.overlay.active {
  visibility: visible;
  opacity: 1;
}

/* =========================
   🎮 TITLE
========================= */
.game-title {
  font-size: 3rem;
  letter-spacing: 2px;
}

/* =========================
   📦 CARD (rules box)
========================= */
.card {
  background: #222;
  padding: 20px 30px;
  border-radius: 12px;
  text-align: left;
}

.card ul {
  margin-top: 10px;
}

.card li {
  margin-bottom: 8px;
}

/* =========================
   🔘 BUTTONS
========================= */
.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
}

.btn:hover {
  transform: scale(1.05);
}

.primary {
  background: #4caf50;
  color: white;
}

.secondary {
  background: crimson;
  color: white;
}

/* =========================
   💀 GAME OVER
========================= */
.game-over {
  font-size: 2.5rem;
  color: crimson;
}

/* =========================
   📊 SCORE BOX
========================= */
.score-box {
  text-align: center;
}/*# sourceMappingURL=style.css.map */