body {
    background-color: #f4f7f9 !important; /* Blanc bleuâtre doux */
}

/* Custom CSS */
#lin_grad, #lin_grad2 {
    background-image: linear-gradient(135deg, #e0f7fa, #80deea, #26c6da); /* Turquoise dégradé */
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

#lin_grad {
    height: 80vh;
    padding: 0 20px;
}

#lin_grad h1,
#lin_grad h6 {
    color: #0d1b2a; /* Bleu nuit profond */
    font-weight: 900;
}

#lin_grad h1 {
    font-size: 40px;
}

#lin_grad img {
    max-width: 100%;
    height: auto;
    margin-top: 20px;
}

#lin_grad .btn {
    background-color: #0d1b2a; /* Même bleu nuit que le texte */
    color: #ffffff;
    border: none;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

#lin_grad .btn:hover {
    background-color: #1b263b; /* Légèrement plus clair au survol */
    transform: scale(1.05);
}

hr {
    border-top: 4px solid #0d1b2a;
}