styles.css

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
  }
  
  body {
   background-color: #535756de;
  }

  .header {
    text-align: center;
    font-size: 25px;
  }
  
  .Memory-game-main-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 10px;

  }
  .memory-game-wrapper {
    min-width: var(--memoryGame-wrapper-size-width);
    min-height: var(--memoryGame-wrapper-size-height);
    background-color: #ffffff;
    padding: 15px 15px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
    box-shadow: 0 0.9em 2.8em rgba(0, 0, 0, 0.2);
  }

  .reset-size-main-container {
    width: 0;
    height: 0;
  }

  .memory-card-game-levels {
    width: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-evenly;
    flex-wrap: wrap;
    row-gap: 2rem;
  }

  .beginner-button .beginner-btn , .intermediate-button .intermediate-btn, .expert-button .expert-btn {
    padding: 10px 15px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    background-color: #3498db;
    color: #fff;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease;
  }
  
  .game-container {
    
    height: 325px;
    width: 325px;
    position: relative;
    display: grid;
    gap: 10px;
    align-items: center;
    margin-top: 10px;
}

  .score-stats {
    text-align: right;
    width: 100%;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: baseline;
  }

  .stats-container {
    text-align: left;
    margin-bottom: 1.2em;
  }
  
  .stars-res {
    text-align: center;
    margin-bottom: 1.2em;
  }
  
  .stats-container span {
    font-weight: 600;
  }


  .stars {
    display: flex;
    list-style: none;
    justify-content: center;
  }
  
  .card-container {
    position: relative;
    width: 100%;
    /* height: 5.45em; */
    cursor: pointer;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  #start,
  #restart,
  .new-game {
    font-size: 1.1em;
    margin: 1.1em auto 0 auto;
    padding: 10px 22px;
    cursor: pointer;
    margin: 0.8rem auto;
    border-radius: 20px;

    background-color: #FFE566;
     box-shadow: 0px 6px 0px #CCB029;
     color: #000000;
     border: none;
     width: 150px;
     border-radius: 20px;
     padding: 0.7rem 0.5rem;
     font-weight: 700;
     font-size: 19px;
  }
  
  #start {
     background-color: #FFE566;
     box-shadow: 0px 6px 0px #CCB029;
     color: #000000;
     border: none;
     width: 200px;
     border-radius: 20px;
     padding: 0.7rem 0.5rem;
     font-weight: 700;
     font-size: 22px;
     position: absolute;
     transform: translate(-50%, -50%);
     z-index: 1;
  }


  .startButton {
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .reduce-startButton-area {
    width: 0;
    height: 0;
  }
  
  .start-stop {
    margin: 0;
  }
  
  .restart {
    cursor: pointer;
  }
  
  .card-before{
    
    height: 70px;
    width: 70px;
    position: absolute;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #000000;
    transition: transform 0.7s ease-out;
    backface-visibility: hidden;
 }
  
  .card-after {
    
    height: 70px;
    width: 70px;
    position: absolute;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #000000;
    transition: transform 0.7s ease-out;
    backface-visibility: hidden;
}
  
  .card-before {
    background-color: #f4c531;
    font-size: 2.8em;
    font-weight: 600;
  }
  
  .card-after {
    background-color: #ffffff;
    transform: rotateY(180deg);
  }

  .card-after img {
    width: 80%;
  }
  
  .card-container.flipped .card-before {
    transform: rotateY(180deg);
  }
  
  .card-container.flipped .card-after {
    transform: rotateY(0deg);
  }
  
  .controls-container button {
    font-size: 1.3em;
    box-shadow: 0 0.6em 2em rgba(86, 66, 0, 0.2);
  }

  .hide {
    display: none;
  }

  #result {
    text-align: center;
  }
  
  #result h2 {
    font-size: 2.5em;
  }
  
  #result h4 {
    font-size: 1.8em;
    margin: 0.6em 0 1em 0;
  }
  
   /* Styling for the popup container */
   .popup {
    /* display: none; Initially hide the popup */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 20px;
    border: 1px solid #ccc;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.5);
    z-index: 9999;
    border-radius: 20px;
    min-width: 300px;
}
/* Styling for the overlay */
.overlay {
    /* display: none; Initially hide the overlay */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.hidePopUp {
  display: none;
}

  .center-results {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    margin-left: 10px;
  }
  
  .popup-content {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.5);
    padding: 20px;
    max-width: 400px;
    margin: 50% auto;
    text-align: center;
  }


  img, svg {
    vertical-align: middle;
  }

  .close {
    color: #e27f7f;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    
  }
  
  #closeBtn {
    background-color: #ff6347;
    min-width: 111px;
    color: #fff;
    border: none;
    padding: 8px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 20px;
    font-weight: bold;
    transition: background-color 0.3s ease;
    margin-top: 6%;
}
  #close:hover {
    background-color: #e74c3c; /* Background color on hover */
  }

  .close:hover,
  .close:focus {
    color: #e74c3c;
    text-decoration: none;
  }
  

  /* @media only screen and (min-width: 568px) and (max-width: 992px) {
   
    .memory-game-wrapper {
      min-width: 560px;

    }
  
    .popup-content {
      max-width: 60%; 
    }

    .card-container {
      min-width: 64px;
      min-height: 74px; 
    }

  
  } */

/*
  @media only screen and (max-width: 567px) {
    .memory-game-wrapper {
      min-width: 90%; 
      
    }
  
    .popup-content {
      max-width: 90%; 
    }

    .card-container {
      width: 100%;
      min-height: 100px; 
    }

    .game-container {
      min-width: 99%;
      gap: 0.1em;
    }

    .card-before, .card-after {
      aspect-ratio: 1/1;
      min-width: 98%;
    }
  }
  

 
  */