@media screen and (max-width: 1200px) {
    .main {
        display: block;
    }
    .mensagem { 
        margin-top: 140px;
        width: 100%;
        height: 500px;
    }
    .informacao {
        display: flex;
        justify-content: center;
        margin-right: 35%;
        font-size: 15px;
    }
    .texto-saida {
        position: absolute;
        bottom: -270px;
        margin-left: -25px;
        width: 100%;
        text-align: center;
    }
    #btnCopiar {
        position: absolute;
        bottom: -280px;
        left: 35%;
    }
}
@media screen and (max-width: 768px) {
    .main {
        display: inline-block;
    }
    .logo h1 {
        font-size: 18px;
    }
    .msg-saida {
        text-align: center;
    }
    .informacao {
        margin: 10px 17% 20px 0%;
    }
    .mensagem {
        border-radius: 15px;
        padding: inherit;
        background-size: 200px;
        height: 250px;
    }
    .encriptar {
        width: 200px;
        height: 48px;
        font-size: 14px;
    }
    .desencriptar {
        width: 200px;
        height: 48px;
        font-size: 14px;
    }
    .texto-saida {
        bottom: -10px;
    }
    .texto-saida h3 {
        font-size: 10px;
        width: 100%;
    }
    .texto-saida p {
        margin-top: 5px;
        font-size: 8px;
        width: 100%;
    }
    .footer span {
        font-size: 12px;
    }
    #btnCopiar {
        bottom: 0px;
        left: 30%;
    }
}

@media screen and (max-width: 600px){
    body {
        text-align: center;
    }
    .main {
        display: block;
    }
    .informacao {
        margin: 10px 0 20px 5%;
        font-size: 10px;
    }
    .logo a h1 {
        font-size: 9px;
    }
    .input-texto {
        height: 120px;
        font-size: 16px;
       
    }
    .input-texto::placeholder {
        font-size: 14px;
    }
    .encriptar {
        width: 90%;
        height: 48px;
        margin-bottom: 10px;
    }
    .desencriptar {
        width: 90%;
        height: 48px;
        font-size: 18px;
        margin-bottom: 20px;
        margin-left: 0px;
    }
    .msg-saida {
        width: 100%;
        text-align: center;
    }
    .mensagem {
        background-size: 130px;
    }
    .texto-saida {
        bottom: 130px;
    }
    
    #btnCopiar {
        bottom: 110px;
        left: 30%;
        width: 200px;
        height: 48px;
    }
    .footer {
        flex-direction: column;
        margin-top: -110px;
        margin-left: 0px;
    }
    .footer span {
        display: block;
        margin-bottom: 5px;
    }
   
}