styles.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-size: 16px;
    font-family: Arial, Helvetica, sans-serif;
    background: #000;
    color: rgb(29, 119, 209);
}

.contenedor {
    width: 90%;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    max-width: 1000px;
    min-width: 350px;
    margin: 20px auto;
    background: #fff;
}

header {
    width: 100%;
    padding: 10px 0 10px 0;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
}

header .logo {
    display: flex;
    align-items: center;
}

header .logo img {
    width: 100px;
    height: auto;
    background-size: cover;
}

header .encabezado {
    line-height: 12px;
}

header .menu a {
    color: rgb(29, 119, 209);
    text-decoration: none;
    margin-right: 40px;
    font-size: 20px;
}

header .menu a:hover {
    text-decoration: underline;
    padding: 10px;
    background: rgb(232, 90, 38);
    color: #fff;
}

.main {
    width: 70%;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    position: relative;
}

.main .imagen img {
    width: 100%;
    min-height: 468px;
    position: relative;
    vertical-align: top;

}

.subtitulo {
    display: flex;
    justify-content: space-between;
    flex-direction: row;
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;

}

.items {
    display: flex;
    width: 100%;
    font-size: 18px;
    padding: 30px;
    justify-content: space-around;
    align-items: center;
    background: rgba(29, 119, 209, 0.5);
}

.items .lorem {
    font-size: 18px;
    font-weight: 500;
    color: #fff;
}

.items .lorem i {
    margin-right: 10px;
    color: rgb(232, 90, 38);
}

.naranja {
    padding: 10px;
    color: #fff;
    background: rgb(232, 90, 38);

}

.naranja p {
    font-size: 18px;
    align-items: center;
}

.subtitulo2 {
    position: absolute;
    right: 0;
    bottom: 50%;
    text-align: left;
    font-size: 40px;
    margin-right: 50px;
}

.subtitulo2 div {
    text-align: right;
}

.subtitulo2 span {
    color: rgb(232, 90, 38);
}

.subtitulo2 .inscripcion {
    font-size: 25px;
}

.subtitulo2 .borde {
    padding-bottom: 5px;
    border-bottom: 2px solid rgb(29, 119, 209);
}

aside {
    width: 30%;
}

.formulario {
    width: 100%;
}

.formulario .contenedor1 {
    background: rgb(29, 119, 209);
    min-height: 468px;
    text-align: center;
}

.formulario .contenedor1 input {
    display: flex;
    width: 90%;
    padding: 5px 15px;
    margin: 10px 20px;
    text-align: left;
    outline: none;
}

.formulario .contenedor1 h3 {
    display: inline-block;
    margin-bottom: 20px;
    color: #fff;
    padding: 20px 0 10px 0;
    align-items: center;
    border-bottom: 2px solid rgb(114, 164, 214);
}

.formulario .contenedor1 h3 span {
    color: rgb(232, 90, 38);
}

.formulario .contenedor1 .boton {
    color: #fff;
    font-weight: 500;
    width: 80%;
    justify-content: center;
    text-align: center;
    margin: 30px auto;
    padding: 15px;
    border: none;
    background: rgb(232, 90, 38);
}

.main2 {
    width: 100%;
}

.main2 .centro {
    display: flex;
    justify-content: left;
    align-items: center;
    padding-left: 50px;
    background-color: rgba(210, 207, 207, 0.848);
    height: 200px;
    font-weight: bold;
    border-bottom: 5px solid rgb(29, 119, 209);
}

.main2 .centro .birrete {
    width: 100px;
    height: 100px;
}

.main2 .centro .texto {
    margin-left: 50px;
}

.contenido1 {
    width: 100%;
    display: grid;
    grid-template-columns: auto auto auto auto;
    gap: 10px;
    margin: 40px 30px;

}

.contenido1 .text {
    font-size: 16px;
    color: rgb(136, 133, 133);
}

.contenido1 .parrafo {
    border: 1px solid rgb(169, 166, 166);
    padding: 20px 0 20px 20px;
}

.contenido1 .parrafo h2 {
    font-size: 16px;
    margin-bottom: 20px;
}

.contenido1 .parrafo .rojo {
    color: red;
}

.contacto {
    display: flex;
    flex-direction: row;
    width: 100%;
}

.contacto .color {
    width: 40%;
    background-color: rgb(29, 119, 209);
    color: aliceblue;
    padding: 40px;
    flex-grow: 2;
    font-weight: bold;
}



 .redes_sociales {
    background: rgb(232, 90, 38);
    padding: 30px 0;
    width: 60%;
}
 .redes_sociales .contenedor {
    display: flex;
    flex-direction: row;
    width: 100%;    
    flex-wrap: wrap;
    justify-content: center;
    background: rgb(232, 90, 38);
}

 .redes_sociales a {
    color: #fff;
    text-align: center;
    width: 100px;
    display: block;
    padding: 15px 0;
    border-radius: 5px;
    font-size: 30px;
    margin: 0 20px;

}

 .redes_sociales .twitter:hover {
    background: #1DA1F2;
}

 .redes_sociales .facebook:hover {
    background: #1877F2;
}

 .redes_sociales .youtube:hover {
    background: #FF0000;
}

.redes_sociales .github:hover {
    background: #333333;
}

 .redes_sociales .instagram:hover {
    background: #E1306C;
}

.footer {
    width: 100%;
    padding: 10px;
    background-color: rgb(73, 71, 71);
    color: aliceblue;
    font-size: 10px;
    text-align: center;
}

@media screen and (max-width:850px) {
    .main {
        width: 100%;
    }

    aside {
        width: 100%;
        flex-direction: row;
    }

    .formulario .contenedor1 .boton {
        width: 50%;
    }
}

@media screen and (max-width:700px) {
    header {
        flex-direction: column;
        padding-bottom: 0px;
    }

    .encabezado h2 {
        justify-items: center;
        margin: 20px;
    }

    header .menu {
        width: 100%;
        background: rgba(29, 119, 209, 0.5);
        text-align: center;
        padding: 20px;
        margin-top: 20px;
    }

    header .menu a {
        margin: 0 20px;
    }

    .contenido1 {
        grid-template-columns: auto auto
    }
    .contacto {
        flex-direction: column;
    }

    .contacto .color {
        width: 100%;
    }

    .redes_sociales {
        width: 100%;
    }
}

@media screen and (max-width:450px) {
    .contenido1 {
        grid-template-columns: auto
    }

    .main2 .centro {
        flex-direction: column;
        padding: 0px;
    }

    .main2 .centro .birrete {
        margin-top: 20px;
    }

    .main2 .centro .texto {
        margin: 20px;
    }


    .items {
        padding: 20px;
    }

    .redes_sociales .contenedor {
        flex-direction: column;
        align-items: center;
    }
}