*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body{
    background-color: #f0f0f0;
    padding: 20px;
}

.contenedor{
    max-width: 1000px;
    margin: auto;
    display: flex;
    background-color: white;
}

/* IZQUIERDA */

.izquierda{
    width: 35%;
    background-color: #1f6b9a;
    color: white;
    padding: 20px;
}

.foto{
    text-align: center;
    margin-bottom: 20px;
}

.foto img{
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 5px solid white;
}

.seccion{
    margin-bottom: 30px;
}

.seccion h2{
    color: orange;
    margin-bottom: 15px;
}

.seccion p,
.seccion li{
    margin-bottom: 10px;
}

.seccion ul{
    margin-left: 20px;
}

/* BARRAS */

.barra{
    width: 100%;
    height: 10px;
    background-color: white;
    border-radius: 10px;
    margin-bottom: 15px;
}

.nivel{
    height: 10px;
    background-color: orange;
    border-radius: 10px;
}

.español{
    width: 100%;
}

.ingles{
    width: 70%;
}

/* DERECHA */

.derecha{
    width: 65%;
    padding: 20px;
}

.encabezado{
    background-color: #1f6b9a;
    color: white;
    padding: 30px;
    margin-bottom: 20px;
}

.encabezado h1{
    font-size: 40px;
}
section{
    margin-bottom: 35px;
}

section h2{
    color: #1f6b9a;
    font-size: 24px;
    margin-bottom: 15px;
    border-bottom: 3px solid orange;
    padding-bottom: 5px;
}

section h3{
    margin-bottom: 5px;
    color: #333;
}

section p,
section li{
    margin-bottom: 10px;
    line-height: 1.6;
}

section ul{
    margin-left: 20px;
}
/* BOTON */

button{
    background-color: #1f6b9a;
    color: white;
    border: none;
    padding: 12px 20px;
    cursor: pointer;
    border-radius: 5px;
}

button:hover{
    background-color: #164d70;
}

/* RESPONSIVE */

@media(max-width: 768px){

    .contenedor{
        flex-direction: column;
    }

    .izquierda,
    .derecha{
        width: 100%;
    }

    .encabezado h1{
        font-size: 28px;
    }
}