header {
    width: 100%;
    position: sticky;
    top: 0;
    z-index: 2;
}

header nav {
    display: flex;
    flex-direction: row;

    padding: 20px 80px 20px 80px;

    justify-content: space-between;

    background: var(--header-background);
}

#header-left-buttons {
    display: flex;
    gap: 10px;
    align-items: center;
}

#header-right-buttons {
    display: flex;
    gap: 20px;
}

.side-menu-container {
    display: none;
}

.grouped-buttons {
    display: flex;
    align-items: center;
}

.grouped-buttons button {
    all: unset;
    -webkit-user-select: none;
    user-select: none;
    font-weight: 500;
    font-size: medium;

    display: flex;
    justify-content: center;
    align-items: center;

    height: 20px;
    padding: 4px 15px;
    min-width: 50px;

    border: 1px solid var(--brand-border);

    cursor: pointer;
    color: var(--stone-950);

    &:first-child {
        border-radius: 1000px;
        border-top-right-radius: 0;
        border-bottom-right-radius: 0;
    }

    &:last-child {
        border-radius: 1000px;
        border-top-left-radius: 0;
        border-bottom-left-radius: 0;
    }

    &:hover {
        background-color: #fff;
    }
}

.dark-theme .grouped-buttons button {
    color: white;
}

.dark-theme .grouped-buttons button:hover {
    background-color: var(--stone-700);
}

.grouped-buttons button.active,
.grouped-buttons button:active {
    background-color: var(--brand);
    color: var(--brand-light);
}

@media (max-width: 850px) {
    .grouped-buttons {
        display: none;
    }
    header nav {
        padding: 20px 20px 20px 20px;
    }

    .side-menu-container {
        display: flex;
    }
}