.back-home {
    display: inline-block;
    margin: 15px 20px;
    padding: 10px 15px;
    background-color: #34495e;
    color: #ecf0f1;
    text-decoration: none;
    font-weight: bold;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: background-color 0.3s ease, transform 0.2s ease;
}
.back-home:hover {
    background-color: #2c3e50;
    transform: translateX(-3px);
}


* {
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f9f9f9;
    color: #333;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.page-title {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 20px 0;
    margin-bottom: 20px;
}

.content {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

h2 {
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 5px;
    margin-bottom: 20px;
    margin-top: 30px;
}


.bloc-illustratif {
    background-color: #ecf0f1;
    padding: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px dashed #bdc3c7;
    border-radius: 4px;
    margin-top: 15px;
}


.bouton-transition {
    background-color: #3498db;
    color: white;
    font-size: 1.2em;
    font-weight: bold;
    padding: 15px 30px;
    border: none;
    border-radius: 5px; 
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); 
    
    
    transition: background-color 0.3s ease, 
                transform 0.3s ease, 
                box-shadow 0.3s ease;
}


.bouton-transition:hover {
    background-color: #2980b9; 
    transform: translateY(-5px); 
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.2); 
}



.loader {
    width: 60px;
    height: 60px;
    
    border: 8px solid #bdc3c7;
    border-radius: 50%; 
    
    
    border-top: 8px solid #e74c3c; 
    
    
    animation: rotation-spinner 1s linear infinite;
}


@keyframes rotation-spinner {
    0% {
        
        transform: rotate(0deg); 
    }
    100% {
        
        transform: rotate(360deg); 
    }
}


.back-btn {
    position: absolute;
    top: 15px;
    left: 15px;
    width: 40px;
    height: 40px;
    background-color: #fff;
    color: #333;
    border: 1px solid #ddd;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: bold;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s;
    z-index: 1000;
}
.back-btn:hover {
    transform: scale(1.1);
    background-color: #f4f4f4;
}