.logo {
    height: 2.5rem;
    padding: 5px;
}

.navigation-bar {
    display: flex;
    position: sticky;
    top: 0;
    justify-content: space-between;
    background-color: rgb(123, 84, 145);
    color: white;
    border-bottom: 3px solid rgba(0, 0, 0, 0.25);
    box-shadow: 0 10px 5px -5px rgba(0, 0, 0, 0.75);
    z-index: 50;
}

.navigation-bar h1 {
    display: flex;
    align-items: center;
    font-size: 1.75rem;
    padding: 0.5rem;
    margin: 0;
}

/* navigation options */
.navigation-options {
    display: flex;
    cursor: pointer;
}
.navigation-options > * {
    position: relative;
    padding: 0.5rem;
    font-size: 1.25rem;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    transition: background-color 0.25s;
}
.navigation-options a {
    color: inherit;
    text-decoration: none;
}

.navigation-options a > span {
    padding: 0 0.25rem;
}

.navigation-options > *:hover {
    background-color: rgba(0, 0, 0, 0.25);
    text-decoration: underline;
}

/* mobile adjustments */
@media screen and (max-width: 500px){
    .navigation-bar {
        flex-direction: column;
    }
    .navigation-options > *:first-child {
        flex: 4;
    }
    .navigation-options > *:not(:first-child) {
        flex: 1;
    }
    .navigation-bar h1 {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
}