/* =========================================================
   navigation.css — floating glass pill header (ported from
   kaminoone/css/navigation.css: transparent at rest, frosts
   in once scrolled) + mobile menu + skip link
========================================================= */

.nav {
    position: fixed;
    inset: var(--space-3) 0 auto 0;
    z-index: 1000;
    display: flex;
    justify-content: center;
    pointer-events: none;
    transition: inset var(--dur) var(--ease);
}

.nav__inner {
    position: relative;
    pointer-events: auto;
    width: min(var(--container-wide), 92%);
    height: 72px;
    padding-inline: var(--space-4) var(--space-3);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    border-radius: var(--r-pill);
    background: transparent;
    border: 1px solid transparent;
    box-shadow: none;
    transition: background var(--dur) var(--ease),
                backdrop-filter var(--dur) var(--ease),
                box-shadow var(--dur) var(--ease),
                height var(--dur) var(--ease),
                border-color var(--dur) var(--ease);
}

.nav--scrolled {
    inset: var(--space-2) 0 auto 0;
}

.nav--scrolled .nav__inner {
    height: 64px;
    background: var(--glass);
    backdrop-filter: blur(20px) saturate(200%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    box-shadow: var(--shadow-md);
    border-color: var(--glass-border);
}

.nav__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--navy);
    min-width: 0;
    flex-shrink: 1;
}

.nav__brand-logo {
    height: 48px;
    width: auto;
    flex: 0 0 auto;
    object-fit: contain;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav__link {
    padding: 8px 14px;
    border-radius: var(--r-pill);
    font-size: .92rem;
    font-weight: 500;
    color: var(--ink-soft);
    white-space: nowrap;
    transition: color var(--dur-fast) var(--ease),
                background var(--dur-fast) var(--ease);
}

.nav__link:hover {
    color: var(--ink);
    background: rgba(17, 41, 74, .05);
}

.nav__link--active {
    color: var(--navy);
    font-weight: 700;
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.nav__actions .btn {
    padding: 9px 18px;
    font-size: .88rem;
    white-space: nowrap;
}

/* ---- Language switcher ---- */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 2px;
    border-radius: var(--r-pill);
    background: var(--bg);
    padding: 3px;
    flex: 0 0 auto;
}

.lang-switch__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    height: 30px;
    padding-inline: 8px;
    border-radius: var(--r-pill);
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--ink-soft);
    transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.lang-switch__link:hover { color: var(--navy); }

.lang-switch__link--active {
    background: var(--teal);
    color: var(--white);
}

/* ---- Hamburger ---- */
.nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    flex: 0 0 auto;
}

.nav__toggle span {
    display: block;
    height: 2px;
    width: 22px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform var(--dur-fast) var(--ease),
                opacity var(--dur-fast) var(--ease);
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav__toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
    .nav__links,
    .nav__actions .btn--login-desktop { display: none; }

    .nav__toggle { display: flex; }

    .nav__links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        padding: var(--space-2);
        background: var(--white);
        border-bottom: 1px solid var(--line);
        box-shadow: var(--shadow-md);
        transform: translateY(-10px);
        opacity: 0;
        pointer-events: none;
        transition: transform var(--dur-fast) var(--ease),
                    opacity var(--dur-fast) var(--ease);
    }

    .nav__links.is-open {
        display: flex;
        transform: none;
        opacity: 1;
        pointer-events: auto;
    }

    .nav__link {
        width: 100%;
        padding: 13px 16px;
        border-radius: var(--r-md);
    }

    .nav__actions {
        gap: var(--space-1);
    }

    .nav__actions .lang-switch { display: none; }
}