.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.language-control, .fleet-control {
    display: inline-flex;
    align-items: center;
}

.language-control {
    position: relative;
}

.language-control::after {
    width: 0.45rem;
    height: 0.45rem;
    border-right: 2px solid rgba(255, 255, 255, 0.88);
    border-bottom: 2px solid rgba(255, 255, 255, 0.88);
    content: "";
    pointer-events: none;
    position: absolute;
    inset-inline-end: 0.9rem;
    top: 50%;
    transform: translateY(-65%) rotate(45deg);
}

.language-control select, .fleet-control select {
    min-height: 2.5rem;
    padding: 0.4rem 2rem 0.4rem 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.52);
    border-radius: 0.55rem;
    background-color: rgba(255, 255, 255, 0.16);
    color: #ffffff;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    opacity: 1;
}

.language-control select {
    -webkit-appearance: none;
    appearance: none;
    height: 2.5rem;
    line-height: 1.2;
    padding-block: 0.5rem;
    padding-inline: 0.8rem 2.55rem;
}

.language-control select:hover, .fleet-control select:hover {
    background-color: rgba(255, 255, 255, 0.24);
    border-color: rgba(255, 255, 255, 0.78);
}

.language-control select:focus-visible, .fleet-control select:focus-visible {
    outline: 3px solid rgba(255, 255, 255, 0.9);
    outline-offset: 2px;
}

.language-control select option, .fleet-control select option {
    background: #ffffff;
    color: #0f172a;
}

.login-language-row {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 1rem;
}

.login-page .language-control select {
    border-color: rgba(15, 23, 42, 0.32);
    background: #fff;
    color: #0f172a;
}

.login-page .language-control::after {
    border-color: #334155;
}

.utc-footer {
    display: flex;
    justify-content: flex-end;
}

#utc-clock {
    display: block;
    width: 28ch;
    margin-inline-start: auto;
    text-align: end;
    white-space: nowrap;
    overflow: hidden;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum" 1;
    contain: layout inline-size;
}

@media (max-width: 640px) {
    .topbar {
        gap: 0.75rem;
    }

    .main-nav {
        gap: 0.5rem;
    }

    .language-control select {
        max-width: 100%;
    }

    #utc-clock {
        width: 100%;
    }
}