estilos.css

*{
    margin: 0;
    padding: 0;    
}
header{
    width: 100%;
    height: 60px;
    background-color: rgb(243, 247, 33);
    font-size: 25px;
    text-align: left;
    color: rgb(35, 26, 155);
       
    
}
header img{
    margin-left: 90px;
    padding: 3.5px;
}


.container{
    position: relative;
    width: 100%;
    height: 79.2vh;
    background: #200dca;
}

.texto{
    position: absolute;
    width: 42%;
    height: 60%;
    left: 12%;
    top: 15%;
    text-align:center;
    border: none;
    font-family: "Inter";
    font-style: normal;
    font-weight: 400;
    font-size: 32px;
    line-height: 150%;
    background-color: #fff;
    border-radius: 20px;
    border: 0;
    outline: 0;
    resize: none;
}

.texto::placeholder{
   color: #0a3871; 
   text-align: center;  
}

.texto:focus,
.texto:active{
    border: none;
    outline: none;
}

.terminos{
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 0px;
    gap: 8px;
    position: absolute;
    width: 80%;
    left: 12%;
    top: 80%;
}

.terminos p {
    font-family: "Inter";
    font-style: normal;
    font-weight: 400;
    font-size: 12px;
    line-height: 150%;
    color: white;
    opacity: 0.8;
    flex: none;
    order: 1;
    flex-grow: 0;
}

.botones{
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    padding: 1% 0;
    position: absolute;
    width: 80%;
    left: 12%;
    top: 82%;
}

.btn-encriptar{
    width: 25%;
    height: 45px;
    border-radius: 20px;
    border: 0;
    outline: 0;
    color: aliceblue;
    font-size: 20px;
    background: linear-gradient(180deg, #65bce8 0%, #306485 100%);
    transition: all .3s;
}

.btn-desencriptar{
    width: 25%;
    height: 45px;
    border-radius: 20px;
    border: 0;
    outline: 0;
    color: aliceblue;
    font-size: 20px;
    background: linear-gradient(180deg, #65bce8 0%, #306485 100%);
    transition: all .3s;
}

.btn-desencriptar:hover,
.btn-encriptar:hover{
    margin: 0.3%;
    width: 24.5%;
    padding: 1.8%;
    background: linear-gradient(180deg, #fbde74 0%, #ff9900 100%);
    transition: all .3s;
}

.encriptado{
    display: flex;
    justify-content: center;
    position: absolute;
    width: 30%;
    height: 90%;
    left: 60%;
    top: 5%;
    background: #fff;
    box-shadow: 0px 24px 32px -8px rgba(0,0,0,0.08);
    border-radius: 32px;
}

.mensaje-encriptado{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1%;
    gap: 16px;
    position: absolute;
    width: 100%;
    top: 65%;
    text-align: center;
}

.mensaje-encriptado h2{
    width: 60%;
    font-family: "Inter";
    font-style: normal;
    font-weight: 700;
    font-size: 24px;
    line-height: 120%;
    text-align: center;
    color: #343a40;
}

.mensaje-encriptado p{
    width: 80%;
    font-family: "Inter";
    font-style: normal;
    font-weight: 400;
    font-size: 16px;
    line-height: 150%;
    text-align: center;
    color: #495057;
}

.encriptado img{
    position: absolute;
    width: 80%;
    height: 50%;
    top: 15%;
}
footer{
    width: 100%;
    height: 60px;
    background-color: rgb(240, 21, 21);
    font-size: 25px;
    text-align: center;
    color: aliceblue;
    padding-top: 15px;
    box-sizing: border-box;

}

/*Responsive design*/
@media(max-width: 57.5em){
    .container{
        display: flex;
        flex-direction: row;
    }
    .encriptar{
        width: 100%;
    }
    .texto{
        width: 80%;
        height: 60%;
        left: 10%;
        top: 5%;
    }
    .terminos{
        width: 80%;
        left: 10%;
        top: 67%;        
    }
    .terminos p{
        font-size: 16px;
    }
    .botones{
        width: 80%;
        left: 10%;
        top: 70%;
    }
    .btn-encriptar,
    .btn-desencriptar{
        width: 48%;
        border-radius: 16px;
    }
    .btn-encriptar:hover,.btn-desencriptar:hover{
        margin: 0.3%;
        width: 47.5%;
        padding: 1.8%;
    }
    .encriptado{
        width: 80%;
        height: 15%;
        left: 10%;
        top: 80%;
    }
    .mensaje-encriptado{
        width: 100%;
        top: 5%;
    }
    .encriptado img{
        top: o;
        display: none;
        visibility: hidden;
    }
    .header{
        display: flex;
        flex-direction: row;
    }
}