main {
    padding: 40px 0 60px 0; /* espace haut et bas, pas sur les côtés */
    background-color: #ffffff;
    font-family: 'Arial', sans-serif;
    color: #333;
    line-height: 1.6;
    min-height: 70vh;
    margin-bottom: 40px; /* marge blanche en bas */
    display: flex;
    flex-direction: column;
    align-items: center;
}

main h2 {
    font-size: 2rem;
    color: #97c00e;
    margin-bottom: 20px;
    text-align: center;
    letter-spacing: 1px;
}

main p {
    font-size: 1.1rem;
    margin: 10px 0;
    text-align: center;
}

main a {
    color: #97c00e;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.2s;
}

main a:hover {
    text-decoration: underline;
    color: #6d8c0a;
}

main div {
    margin-top: 30px;
    text-align: center;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

main h3 {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 15px;
}

main iframe {
    border: 2px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    height: 35vh;
    width: 90vw;
    max-width: 600px;
    margin-top: 10px;
}

@media (max-width: 900px) {
    main {
        padding: 25px 0 40px 0;
        margin-bottom: 25px;
    }
    main iframe {
        height: 25vh;
        width: 98vw;
        max-width: 98vw;
    }
}

@media (max-width: 600px) {
    main {
        padding: 15px 0 25px 0;
        margin-bottom: 15px;
    }
    main h2 {
        font-size: 1.3rem;
    }
    main h3 {
        font-size: 1.1rem;
    }
    main p {
        font-size: 1rem;
    }
    main iframe {
        height: 18vh;
        width: 100vw;
        max-width: 100vw;
    }
}