/* Basic page layout */
body {
    font-family: Arial, Helvetica, sans-serif;
    background: #f0f8ff;
    margin: 0;
    padding: 20px;
    text-align: center;
}
h1 {
    color: #333;
}

/* Game board – 8 columns, responsive spacing */
#game-board {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 8px;
    max-width: 800px;
    margin: 0 auto;
}

/* Card container */
.card {
    position: relative;
    width: 100%;
    height:100px;
    /* padding-top: 100%;   makes a square */
    cursor: pointer;
    perspective: 600px;  /* for 3D flip effect */
}

.card-inner {
    pointer-events: none;          /* NEW */
    position: absolute;
    width: 100%;
    height: 100%;
    transition: transform 0.4s;
    transform-style: preserve-3d;
}
.card.flipped .card-inner {
    transform: rotateY(180deg);
}

/* Front side – hidden */
.card-front,
.card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

/* Hidden side (back of the card) */
.card-front {
    background: #4a90e2;
    color: white;
}

/* Revealed side (fruit) */
.card-back {
    background: #fff;
    transform: rotateY(180deg);
    border: 2px solid #4a90e2;
}

  /* -------------------------- Weird Footer ----------------------*/
   :root {
      --lightness: 50%;
      --code-background: #ddd;
  }
   footer {
          /* position: absolute; */
          left:0;
          bottom:0;
          background: #FFF;
          text-align: center;
          clear: both;
          display: block;
          padding:10px;
          border: 2px dashed red;
          z-index: 20;
      }
  footer a:hover {
      display: inline-block;
      animation: 0.2s infinite alternate linear wiggle;

      background: linear-gradient(in hsl longer hue 45deg, hsl(0deg, 75%, var(--lightness)) 10%, hsl(0deg, 75%, var(--lightness)) 90%);
      background-clip: text;
      color: transparent;
  }
      @keyframes wiggle {
          from {
              transform: skewX(-8deg);
          }
          to {
              transform: skewX(8deg);
          }
      }