body {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: #F2F3FC;
    font-family: Arial, Helvetica, sans-serif;
}

header {
    position: fixed;
    width: 100%;
    display: flex;
    justify-content: space-between;
    box-shadow: 2px 2px 2px rgba(0,0,0,0.1);
    height: 65px;
    background-color: white;
    z-index: 1000;
    padding: 0 10px;
}

#logo {
    margin: 10px;
    width: 40px;
    height: 40px;
}

#out {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin: 10px;
    margin-right: 30px;
    padding: 20px;
}

#out2 {
    display: flex;
    justify-content: center;
    background-color: #ccc;
    width: 30px;
    height: 30px;
    padding: 5px;
    border-radius: 50%;
}

#out:hover {
    background-color: rgba(12,12,12,0.1);
    border-radius: 10px;
    cursor: pointer;
}

#content {
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
    margin-top: 150px;
    background-color: white;
    padding: 10px;
    border-radius: 10px;
}

#content p {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 17px;
}

#h1 {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

#btn {
    display: flex;
    flex-direction: column;
}

#btn button {
    padding: 5px;
    background-color: #0866FF;
    border-radius: 5px;
    border: 1px solid #0866FF;
    color: white;
    font-size: 17px;
    cursor: pointer;
}

#btn button:hover {
    background-color: rgba(6,66,255,0.9);
}

#btn a {
    text-decoration: none;
    color: #0866FF;
    font-weight: bold;
    text-align: center;
    margin: 10px;
    padding-top: 5px;
}

#btn a:hover {
    text-decoration: underline;
}

/* 📱 Tablette */
@media (max-width: 768px) {
    #content {
        max-width: 90%;
        margin-top: 120px;
    }

    #content p {
        font-size: 16px;
    }

    header {
        height: 60px;
    }

    #logo {
        width: 35px;
        height: 35px;
    }

    #btn button {
        font-size: 16px;
    }
}

/* 📱 Mobile */
@media (max-width: 480px) {
    #content {
        max-width: 95%;
        margin-top: 100px;
        padding: 8px;
    }

    #content p {
        font-size: 15px;
    }

    header {
        height: 55px;
        padding: 0 5px;
    }

    #logo {
        width: 30px;
        height: 30px;
    }

    #out {
        padding: 10px;
        margin-right: 10px;
        gap: 5px;
    }

    #out2 {
        width: 25px;
        height: 25px;
        padding: 4px;
    }

    #btn button {
        font-size: 15px;
        padding: 8px;
    }

    #btn a {
        font-size: 14px;
        margin: 5px 0;
    }
}