body {
    font-family: proxima-nova, sans-serif;
    color: #7E7E7E;
    font-size: 17px;
    font-weight: 400;
    font-style: normal;
    line-height: 31px;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #fff;
}
header {
    background: #5B9BD5;
    color: #fff;
    text-align: left;
}
nav {
    display: flex;
    justify-content: right;
    background: #fff;
}

nav a {
    font-weight: 600;
    font-size: 14px;
    line-height: 25px;
    color: #7E7E7E;
    text-decoration: none;
    margin: 0 0.5rem;
    padding: 1rem 1rem;
}
nav a:hover {
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 4px; 
    text-decoration-color: #D4E5F7;    
}

.menu {
    display: flex;
    align-items: left;
    justify-content: left;
    flex-direction: row;  
}
.menu .foto-redonda {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    margin-top: 1rem;
    margin-bottom: 1rem;
    margin-left: 10rem;
}

@media (max-width: 1100px) {
    .menu .certif {
        display: none;
    }
}

@media (max-width: 750px) {
    .menu .foto-redonda {
        display: none;
    }
}

.menu .bio {
    margin: auto;
    margin-left: 3rem;
    overflow: hidden;
    line-height: 15px;
    text-align: left; 
}

.menu .certif {
    width: 170px;
    height: 170px;
    margin: auto;
    margin-right: 5rem; 
}
.container {
    max-width: 1100px;
    margin: auto;
    overflow: hidden;
    padding: 2rem;
}

.section {
    background: #fff;
    padding: 1rem;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}
footer {
    text-align: center;
    padding: 1rem 0;
    background: #0C498F;
    color: #fff;
    margin-top: 2rem;
}
.sub-title{
    text-align: center;
    font-family: Arial, sans-serif;
    font-weight: 700;
    line-height: 30px;
    font-size: 25px;
    max-width: 1100px;
    margin-top: 2rem;
    overflow: hidden;
    color: #000;
}