body {
    margin: 0;
    padding: 0;
}

.btn-start {
    display: block;
    margin: auto;
    margin-top: 2%;
    padding: 15px 30px;
    font-size: 2rem;
    border-radius: 50px;
    color: #fff;
    background-color: #f39c12;
    border: none;
    outline: none;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    text-shadow: 0 0 5px #fff;
}
.btn-start:hover {
    transform: scale(1.1);
    box-shadow: 0 0 10px #f39c12;
}

.content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 50px;
    color: white;
}

.custom-title {
    text-align: center;
    font-size: 2.5rem;
    color: #fff;
    text-shadow: 0 0 5px #fff;
    margin-top: 2%;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.custom-title::before,
.custom-title::after {
    content: '';
    position: absolute;
    width: 150px;
    height: 4px;
    background-color: #f39c12;
    top: 50%;
    transform: translateY(-50%);
    transition: all 0.2s ease-in-out;
}

.custom-title::before {
    left: -160px;
}

.custom-title::after {
    right: -160px;
}

.title-highlighted {
    background-color: rgba(0, 0, 0, 0.8); border-radius: 10px;
}

.text-black {
    color: #000000;
}

.background-image {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;           /* Utilise 100% de la largeur de la fenêtre */
    height: 100vh;          /* Utilise 100% de la hauteur de la fenêtre */
    z-index: -1;            /* Place l'image en arrière-plan */
    background: url('../images/backgrounds/Fond2.png') no-repeat center center;
    background-size: cover; /* Couvre toute la fenêtre */
    overflow: hidden;       /* Empêche tout débordement */
}

.btn-back {
    position: fixed;
    top : 10px;
    left : 10px;
    z-index:100;
}

.arrow_back {
    width: 5vw;
    height: 7vh;
    cursor: pointer;
}

.arrow_back:hover {
    transform: scale(1.2); /* Effet d'agrandissement au survol */
}