@import url(/01-Entrainement/css/reset.css);

html, body{
    font-size: 16px;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-image: url(img_hexagones.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.title__h1{
    font-size: 2rem;
    color: white;
    text-align: center;
    margin-bottom: 2rem;
}

.sudoku__grid{
    width: 400px;
    margin: 0 auto;
    gap: 0;
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    margin-bottom: 2rem;

}

.sudoku__cell{
    width: 40px;
    height: 40px;
    font-size: 20px;
    text-align: center;
    border: 1px solid gray;
    box-sizing: border-box;
   
}

.sudoku__cell.invalid {
    border: 2px solid red;
    background-color: #ffe6e6;
  }
  

.sudoku__cell:nth-child(3n){
    border-right: 2px solid black;
/* bordure a chaque 3ème cellules */

}

.sudoku__cell:nth-child(1),
.sudoku__cell:nth-child(10),
.sudoku__cell:nth-child(19),
.sudoku__cell:nth-child(28),
.sudoku__cell:nth-child(37),
.sudoku__cell:nth-child(46),
.sudoku__cell:nth-child(55),
.sudoku__cell:nth-child(64),
.sudoku__cell:nth-child(73){
    border-left: 2px solid black;
/* bordure au debut de chaque bloc 3x3 sur la gauche*/

}

.sudoku__cell:nth-child(n + 19):nth-child(-n + 27),
.sudoku__cell:nth-child(n + 46):nth-child(-n + 54),
.sudoku__cell:nth-child(n + 73):nth-child(-n + 81){
    border-bottom: 2px solid black;

}

.sudoku__cell:nth-child(-n + 9){
    border-top: 2px solid black;
}


#validationMessage {
    margin-top: 1rem;
    font-size: 1.2rem;
    font-weight: bold;
    text-align: center;
  }
  

  #feedbackMessage {
    text-align: center;
    font-size: 1.2rem;
    margin-top: 1rem;
    color: #007BFF; /* Bleu pour indiquer un état actif */
    transition: opacity 0.5s ease;
  }

  .feedbackIcon {
    display: inline-block;
    margin-right: 0.5rem;
    font-size: 1.5rem;
    vertical-align: middle;
  }

  #difficultySelector {
    text-align: center;
    margin: 1rem 0;
  }
  
  .difficulty {
    margin: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
  }
  
  .difficulty:hover {
    background-color: #0056b3;
  }

  button {
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: bold;
    text-transform: uppercase;
    color: #ffffff;
    background-color: #007BFF;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
  }
  
  button:hover {
    background-color: #0056b3;
    transform: scale(1.05);
  }
  
  button:active {
    background-color: #003f7f;
    transform: scale(1);
  }
  
  button:focus {
    outline: none;
    box-shadow: 0 0 10px rgba(0, 123, 255, 0.5);
  }
  
   /* Style pour les cellules pendant le chargement */
   .sudoku__cell.loading {
    background-color: #f0f0f0;
    animation: blink 1s infinite;
  }

  #generateGrid {
    background-color: #28a745; /* Vert pour Nouvelle Grille */
  }
  
  #generateGrid:hover {
    background-color: #218838;
  }
  
  #generateGrid:active {
    background-color: #1e7e34;
  }
  
  #validateGrid {
    background-color: #dc3545; /* Rouge pour Valider */
  }
  
  #validateGrid:hover {
    background-color: #c82333;
  }
  
  #validateGrid:active {
    background-color: #bd2130;
  }
  

  .link__portfolio{
    margin-top: 2rem;
    font-size: 16px;
    font-weight: lighter;
    color: white;
    text-decoration: none;
  }
  
  .link__portfolio:hover{
    color: red;
  }
  
  
  
  

  
  
  

/* Animation de clignotement */
@keyframes blink {
    0%, 100% {
      opacity: 1;
    }
    50% {
      opacity: 0.5;
    }
  }
  
 

  @media (max-width: 768px) {
    .sudoku__grid {
      max-width: 90%; /* Réduire la largeur pour qu'elle s'adapte mieux */
    }
  
    .sudoku__cell {
      font-size: calc(0.8rem + 0.5vw); /* Ajuste encore plus sur mobile */
    }
  
    button {
      font-size: 0.8rem; /* Réduit la taille des boutons */
      padding: 0.4rem 0.8rem;
    }
  }