/* Language dropdown (CZ / EN), shared by the sign-in page and the app topbar */

.lang { position: relative; flex-shrink: 0; }
.lang.corner { position: fixed; top: 18px; right: 18px; z-index: 50; }

.lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 40px;
    padding: 0 8px 0 12px;
    border-radius: 10px;
    background: var(--panel, #111620);
    border: 1px solid var(--line, rgba(255, 255, 255, .07));
    color: var(--text, #e9edf4);
    font: 600 13px/1 var(--font, 'Inter', system-ui, sans-serif);
    letter-spacing: .05em;
    cursor: pointer;
    transition: border-color .15s, background .15s;
}
.lang-btn:hover,
.lang.open .lang-btn { background: var(--panel-2, #161c28); border-color: var(--line-2, rgba(255, 255, 255, .13)); }
.lang-btn:focus-visible { outline: 2px solid var(--accent, #f97316); outline-offset: 2px; }
.lang-btn img,
.lang-item img { width: 20px; height: 14px; border-radius: 3px; object-fit: cover; box-shadow: 0 0 0 1px rgba(255, 255, 255, .14); flex-shrink: 0; }

.lang-caret { width: 16px; height: 16px; fill: var(--muted, #8b94a7); transition: transform .15s; }
.lang.open .lang-caret { transform: rotate(180deg); }

.lang-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    z-index: 60;
    min-width: 180px;
    padding: 6px;
    border-radius: 12px;
    background: var(--panel, #111620);
    border: 1px solid var(--line-2, rgba(255, 255, 255, .13));
    box-shadow: 0 18px 40px rgba(0, 0, 0, .45);
    animation: lang-in .14s ease-out;
}
.lang-menu[hidden] { display: none; }

.lang-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 9px 10px;
    border: 0;
    border-radius: 8px;
    background: none;
    color: var(--text, #e9edf4);
    font: 500 14px/1.2 var(--font, 'Inter', system-ui, sans-serif);
    text-align: left;
    cursor: pointer;
}
.lang-item span { flex: 1; }
.lang-item:hover,
.lang-item:focus-visible,
.lang-item.on { background: rgba(255, 255, 255, .05); outline: none; }
.lang-check { width: 16px; height: 16px; fill: var(--accent, #f97316); opacity: 0; }
.lang-item.on .lang-check { opacity: 1; }

@keyframes lang-in { from { opacity: 0; transform: translateY(-4px); } }
@media (prefers-reduced-motion: reduce) { .lang-menu { animation: none; } }
@media (max-width: 600px) { .lang-btn span { display: none; } }