/* The language switcher of every page (lang-switcher.js): a round button with the current
   language's flag or code that opens a list of the shop's languages. It is /book's own, moved
   here so every page draws the same one.

   A page's own --input-bg / --input-border / --input-hover-bg / --accent / --text win where it
   has them (that is how /book keeps its look, custom backgrounds included). Everything else
   follows the colour scheme - or stays dark on a page that is always dark, which says so with
   data-theme="dark" on the container (landing, register, saas-admin). */
.lang-switcher-wrap {
    --ls-fg: #fff;
    --ls-bg: rgba(255, 255, 255, 0.06);
    --ls-border: rgba(255, 255, 255, 0.18);
    --ls-hover-bg: rgba(255, 255, 255, 0.1);
    --ls-hover-border: #fff;
    --ls-menu-bg: var(--input-bg, rgba(20, 20, 22, 0.95));
    --ls-menu-border: var(--input-border, rgba(255, 255, 255, 0.18));
    --ls-menu-shadow: 0 18px 40px -16px rgba(0, 0, 0, 0.55), 0 6px 16px -8px rgba(0, 0, 0, 0.35);
    --ls-item-fg: var(--text, #fff);
    --ls-item-hover: rgba(255, 255, 255, 0.07);
    --ls-item-current: rgba(255, 255, 255, 0.1);
    --ls-chip-bg: rgba(255, 255, 255, 0.12);
    --ls-chip-fg: inherit;
    position: relative;
    display: inline-block;
}

.lang-switcher-wrap[hidden] {
    display: none !important;
}

@media (prefers-color-scheme: light) {
    .lang-switcher-wrap:not([data-theme="dark"]) {
        --ls-fg: #222;
        --ls-bg: rgba(0, 0, 0, 0.04);
        --ls-border: rgba(0, 0, 0, 0.12);
        --ls-hover-bg: rgba(0, 0, 0, 0.07);
        --ls-hover-border: #222;
        --ls-menu-bg: rgba(255, 255, 255, 0.97);
        --ls-menu-border: rgba(0, 0, 0, 0.1);
        --ls-menu-shadow: 0 18px 40px -16px rgba(0, 0, 0, 0.18), 0 6px 16px -8px rgba(0, 0, 0, 0.12);
        --ls-item-fg: #222;
        --ls-item-hover: rgba(0, 0, 0, 0.06);
        --ls-item-current: rgba(0, 0, 0, 0.08);
        --ls-chip-bg: rgba(0, 0, 0, 0.08);
        --ls-chip-fg: #333;
    }
}

/* ── The button ─────────────────────────────────────────── */
.lang-switcher-wrap .lang-toggle {
    appearance: none;
    margin: 0;
    padding: 4px 12px;
    background: var(--input-bg, var(--ls-bg));
    border: 1px solid var(--input-border, var(--ls-border));
    color: var(--ls-fg);
    border-radius: 25px;
    min-width: 48px;
    height: 32px;
    box-sizing: border-box;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    line-height: 1;
    transition: background 0.2s, border-color 0.2s;
}

@media (hover: hover) {
    .lang-switcher-wrap .lang-toggle:hover {
        background: var(--input-hover-bg, var(--ls-hover-bg));
        border-color: var(--accent, var(--ls-hover-border));
    }
}

.lang-switcher-wrap .lang-toggle:active {
    transform: scale(0.95);
}

.lang-toggle-flag {
    display: block;
    width: 24px;
    height: 16px;
    object-fit: cover;
    border-radius: 2px;
    pointer-events: none;
}

.lang-toggle-code {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: inherit;
    pointer-events: none;
}

/* ── The list ───────────────────────────────────────────── */
.lang-switcher-wrap .lang-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    z-index: 4000;
    /* content-box, as the browser gives it on /book: 180px of items plus padding and border. */
    box-sizing: content-box;
    min-width: 180px;
    max-width: 240px;
    background: var(--ls-menu-bg);
    border: 1px solid var(--ls-menu-border);
    border-radius: 12px;
    padding: 5px;
    box-shadow: var(--ls-menu-shadow);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    opacity: 0;
    transform: translateY(-4px) scale(0.97);
    transform-origin: top left;
    transition: opacity 0.16s ease, transform 0.18s cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
}

/* Too little room below the button (the drawer's foot on /index) opens it upwards, too little
   room to the right (a switcher in a page's top right corner) aligns it to the right edge. */
.lang-switcher-wrap--up .lang-menu {
    top: auto;
    bottom: calc(100% + 8px);
    transform: translateY(4px) scale(0.97);
    transform-origin: bottom left;
}

.lang-switcher-wrap--end .lang-menu {
    left: auto;
    right: 0;
    transform-origin: top right;
}

.lang-switcher-wrap--up.lang-switcher-wrap--end .lang-menu {
    transform-origin: bottom right;
}

.lang-switcher-wrap .lang-menu.is-open {
    opacity: 1;
    transform: none;
    pointer-events: auto;
}

.lang-switcher-wrap .lang-menu[hidden] {
    display: none !important;
}

.lang-switcher-wrap .lang-menu-item {
    appearance: none;
    background: transparent;
    border: 0;
    margin: 0;
    box-sizing: border-box;
    width: 100%;
    padding: 8px 11px 8px 9px;
    border-radius: 8px;
    cursor: pointer;
    color: var(--ls-item-fg);
    font-family: inherit;
    font-size: 0.85rem;
    line-height: normal;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background 0.14s ease, color 0.14s ease;
    text-align: left;
}

@media (hover: hover) {
    .lang-switcher-wrap .lang-menu-item:hover {
        background: var(--ls-item-hover);
    }
}

.lang-switcher-wrap .lang-menu-item.is-current {
    background: var(--ls-item-current);
}

.lang-switcher-wrap .lang-menu-item.is-current::after {
    content: "✓";
    margin-left: auto;
    font-size: 0.85em;
    opacity: 0.7;
}

.lang-switcher-wrap .lang-menu-item:focus-visible {
    outline: 2px solid var(--accent, currentColor);
    outline-offset: -2px;
}

.lang-menu-flag {
    width: 22px;
    height: 14px;
    object-fit: cover;
    border-radius: 2px;
    flex-shrink: 0;
}

.lang-menu-code {
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: var(--ls-chip-bg);
    color: var(--ls-chip-fg);
    padding: 3px 6px;
    border-radius: 4px;
    min-width: 28px;
    box-sizing: content-box;
    text-align: center;
    flex-shrink: 0;
}

/* Without a flag the code is the item's "icon". */
.lang-menu-code--solo {
    min-width: 32px;
}

.lang-menu-name {
    font-weight: 500;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}