* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    }
    
    body {
      background-color: hsl(328, 100%, 50%);
      
    }
    
    header {
      display: flex;
      justify-content: space-around;
    }
    
    main {
      font-family: Arial, sans-serif;
      font-size: 150%;
      text-align: justify;
      display: flex;
      padding-left:1%;
      padding-right : 1%;
      background-color: #333;
    }
    .titre{
      /* margin-top: 3%; */
      text-align: center;
      margin-left: 30%;
      margin-right: 30%;
      border-radius: 10px;
      box-shadow : 10px 5px 5px white;
      background-color:#e9ecef;
      color : black;
    }
    
    .presentation{
      display: flex;
      justify-content: center;
      margin-left :20%;
      margin-right:20%;
      text-align: center;
      box-shadow: 10px 5px 5px rgb(223, 115, 21);
      border-radius: 10px;
      background-color: rgb(254, 219, 31);
      
    }

    table{
      width: 90%;
      margin: 20px auto;
      border-collapse: collapse;
      background-color: #fff;
      box-shadow: 0 0 10px rgba(0,0,0,0.1);
    }

    th, td{
      padding:10px;
      text-align:center;
      border:1px solid #ddd;
    }
    
    th{
      background-color: #333;
      color: #fff;
    }

    tr:nth-child(even){
      background-color:#f9f9f9;
    }

    tr:hover {
      background-color:#f1f1f1;
    }

    a{
      text-decoration : none;
      color : #007bff;
      padding:5px 10px;
      border-radius:5px;
    }
    a:hover{
      background-color:#e9ecef;
    }


    .presentation_tournoi{
      margin-top:3%;
      margin-left: 25%;
      margin-right:25%;
      text-align: center;
      justify-content: center;
      color:#fff;
      border-radius: 10px;
      background-color: rgb(251, 14, 70);
      box-shadow: 10px 5px 5px rgb(251, 14, 100);
    }
    .description{
      color:#fff;
      justify-content:center;
      text-align: justify;
      padding-left: 5%;
      padding-right:5%;
    }
   
    .Tableau_tournoi{
      justify-content:center;
      text-align: center;
    }
    footer {
      background-color: #333;
      color: white;
      text-align: center;
      padding: 5%;
    }

    .principale{
    background-image: url(image.png);
    } 

    form{
    justify-content : center;
    text-align : center;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 5%;
    }
    .inscription{
    text-align : center;
    }

    .formulaire_connexion{
      border-radius: 5%;
      margin-left : 35%;
      margin-right : 35%;
      background-color: rgb(0, 0, 0);
      color : white;
      box-shadow: 10px 5px 5px rgba(137,135,135);
    }

       
    .intro{
      justify-content: center;
      text-align:center;
      margin-top: 5%;
      margin-left:15%;
      margin-right: 15%;
      border-radius: 5%;
      color:#ddd;
    }
    .photo{
      justify-content : center;
      margin-top:5%;
      margin-left:15%;
      margin-right:15%;
      text-align : center;
    }
    img.responsive {
      max-width: 100%;
      height: auto;
    }
    .inscription{
      border-radius:5%;
      margin-right:15%;
      margin-left:15%;
      margin-top:3%;
      color:whitesmoke;
    }
   .formulaire_connexion{
    background-color:#28293d;
    border-radius:10px;
    padding:40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    max-width:400px;
    width:100%;
   }

  h2.formulaire_connexion{
    text-align:center;
    margin-bottom:20px;
    color:#ffffff;
    font-size:24px;
    letter-spacing:1px;
   }

  input[type="text"].formulaire_connexion, input[type="password"].formulaire_connexion{
    width:100%;
    padding:15px;
    margin:10px 0 20px;
    border:none;
    border-radius:5px;
    background-color: #3c3e56;
    color:#ffffff;
    font-size:16px;
    transition: all 0.3s ease;
  }
   
  input[type="text"].formulaire_connexion:focus, input[type="password"].formulaire_connexion:focus{
    outline: none;
    background-color: #4d4f6a;
    box-shadow:0 0 10px rgba(255,255,255,0.2);
  }

  button.formulaire_connexion:hover{
    background-color:#5753d8;
  }
  .erreur_inscription{
    justify-content: center;
    color :white;
    text-align:center;
    padding-top:15%;
  }

  .inscriptionAction{
    text-align:center;
    justify-content: center;
    color:green;

  }
  .desinscription{
    justify-content: center;
    text-align:center;
    color:#fff;
    padding:15%;
  }
  .moyenne_globale{
    justify-content: center;
    text-align:center;
    color:#fff;
    padding:15%;
  }