:root {
  /*Nord color pallete*/
  --yellow:       #ebcb8b;
  --orange:       #d08770;
  --red:          #bf616a;
  --magenta:      #b48ead;
  --blue:         #5e81ac;
  --cyan:         #81a1c1;
  --aqua:         #8fbcbb; 
  --green:        #a3be8c;
  --white:        #d8dee9;
  --black:        #242933;
  --gray:        #323a48; 
}
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600;700&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Open Sans', sans-serif;
}

*,
*:before,
*:after {
  box-sizing: inherit;
}

::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--HTML_BG);
}

::-webkit-scrollbar-thumb {
  background: var(--btn_BG);
  border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--btn-hover_color);
}

html {
  scrollbar-width: thin;
  scrollbar-color: var(--btn_BG) var(--HTML_BG);
  background-color: var(--blue);
  color: var(--text);
  box-sizing: border-box;
  scroll-snap-type: y mandatory;
}

html,
body {
  height: 100%;
  margin: 0;
  background-color: var(--HTML_BG);
  padding: 0;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--white); 
}

.wrapper {
  flex-shrink: 0;  
  min-height: 65vmin !important;
  width: 65vmin;
  height: 70vmin;
  display: flex;
  overflow: hidden;
  flex-direction: column;
  justify-content: center;
  border-radius: 5px;
  background: var(--blue);
  box-shadow: 8px 8px 4px 1px var(--gray);
}

.game-details {
  color: var(--white);
  font-weight: 500;
  font-size: 1.2rem;
  padding: 20px 27px;
  display: flex;
  justify-content: space-between;
}

.play-board {
  height: 100%;
  width: 100%;
  display: grid;
  background: var(--black)  ; 
  grid-template: repeat(30, 1fr) / repeat(30, 1fr); 
}

.play-board .food {
  background: var(--red);
}

.play-board .head {
  background: var(--green); 
}

.controls {
  display: none;
  justify-content: space-between;
}

.controls i {
  padding: 25px 0;
  text-align: center;
  font-size: 1.3rem;
  color: var(--white);
  width: calc(100% / 4);
  cursor: pointer;
  border-right: 1px solid var(--black); 
}

@media (max-width: 768px) {
  .wrapper {
    width: 90vmin;
    height: 115vmin;
  }
  .game-details {
    font-size: 1rem;
    padding: 15px 27px;
  }
  .controls {
    display: flex; 
  }
  .controls i {
    padding: 15px 0;
    font-size: 1rem;
  }
}

.message {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--white);
  font-size: 1.5rem;
  background: rgba(0, 0, 0, 0.7);
  padding: 20px 30px;
  border-radius: 8px;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  z-index: 2;
}
.hidden {
  display: none; 
}

.difficulty {
  font-size: 1.2rem;
  padding-top: 10px;
  display: flex;
  justify-content: center;
  gap: 10px;
}

.difficulty button {
  padding: 10px 20px;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  background-color: var(--blue); 
  color: var(--black);
  border-radius: 12px; 
  transition: all 0.3s ease; 
  box-shadow: 6px 6px 12px rgba(0, 0, 0, 0.1), -1px -1px 2px rgba(255, 255, 255, 0.6);
}

.difficulty button.active {
  background-color: var(--blue); 
  color: var(--white);
  box-shadow: inset 1px 1px 2px rgba(0, 0, 0, 0.2), inset -1px -1px 2px rgba(255, 255, 255, 0.4); 
}

.difficulty button:hover {
  box-shadow: inset 2px 2px 4px rgba(0, 0, 0, 0.1), inset -2px -2px 4px rgba(255, 255, 255, 0.5);
}


header {
  position: fixed;
  top: 0;
  background-color: var(--blue);
  padding: 2rem 0;
  text-align: center;
  width: 100%;
  margin-bottom: 10rem; 
  z-index: 3;
  box-shadow: 6px 6px 12px rgba(0, 0, 0, 0.3), -1px -1px 2px rgba(255, 255, 255, 0.6);

}

footer {
  box-shadow: 0px -6px 12px rgba(0, 0, 0, 0.3), 0px -1px 2px rgba(255, 255, 255, 0.6);
  width: 100%;
  background-color: var(--blue);
  padding: 2rem 0;
  text-align: center;
  color: var(--text);
  position: absolute; 
  bottom: 0;          
  left: 0;            
  margin-top: 2rem;   
}