.header {
    background-color: transparent;
    color: var(--main-third);
    padding: 20px;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    font-family: "Arial Rounded MT Bold", "Arial";
    z-index: 10;
    transition: 0.4s;
}

.header.changed {
    background-color: var(--main-second);
    box-shadow: 0px -5px 10px #111;
}

.header-title {
    font-weight: bolder;
    font-size: 20px;
}

.header-title a {
    color: var(--main-third);
    text-decoration: none;
}

.nav {
    display: inline-block;
}

.nav li {
    display: inline-block;
}

.nav ul {
    margin: 0;
}

.nav li a {
    color: var(--main-third);
    text-decoration: none;
    padding: 10px;
    display: inline-block;
    margin: 5px;
}

.header a:hover {
    color: var(--main-fourth);
}