body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-family: Helvetica,Arial,sans-serif;
    font-size: 62,5%;
    max-width: 1920px;
}

/* ----- NAVIGATION BAR ----- */

nav {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-top: 20px;
    width: 90%;
    flex-wrap: wrap;
}

.nav-class1 {
    justify-content: end;
}

.nav_button {
    display: flex;
    flex-direction: row;    
    align-items: center;
    justify-content: center;
    background-color: rgb(15,118, 110);
    border-radius: 5px;
    height: auto;
    min-width: 150px;
    min-height: 30px;
}

.nav_link {
    text-decoration: none;
    color: white;
}

.nav_button img {
    width: 15%; 
    height: auto;   
}

.nav_button span {
    width: 75%;
    text-align: center;
}


/* ----- MAIN: HEADER ------ */

header {
    height: auto;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
    width: 60%;
    max-width: 95%;
}

header a {
    display: flex;
    align-items: center;
}

header a, ul {
    height: 90%;
}

header img {
    height: 100px;
}

header ul {
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin-left: 30px;
    width: 70%;
}

header ul li:first-of-type {
    height: 70%;
}

header ul li {
    height: 30%;
    display: flex;
    align-items: center;
}

header ul h1 {
    font-weight: 700;
    font-size: 2rem;
}

header ul h2 {
    color: rgb(107, 114, 144);
    font-size: 1.5rem;
}

/* ----- MAIN ----- */

main {
    line-height: 2rem;
    width: 60%;
    max-width: 95%;
}

main section {
    margin-top: 20px;
}

main p {
    font-weight: 700;

}

main a {
    font-weight: 400;
}

main span {
    font-weight: 700;
    font-size: 1.2rem;
    color: rgb(15,118, 110);
    text-decoration: underline;
    line-height: 4rem;
}