/* Header — Apple-like minimal bar */
header {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    height: var(--header-h);
}

header .container {
    max-width: var(--max-wide);
    height: 100%;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    gap: 16px;
}

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo img {
    height: 22px;
    width: auto;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 4px;
}

.nav-menu li a {
    display: block;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--text);
    opacity: 0.88;
    border-radius: 8px;
    transition: opacity 0.2s var(--ease), background 0.2s var(--ease);
}

.nav-menu li a:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.04);
    color: var(--text);
}

/* Language switcher — right side */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: 8px;
    padding: 3px;
    background: rgba(0, 0, 0, 0.04);
    border-radius: 980px;
}

.lang-switch a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    padding: 5px 10px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--text-secondary);
    border-radius: 980px;
    transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.lang-switch a:hover {
    color: var(--text);
}

.lang-switch a.is-active {
    background: var(--bg-elevated);
    color: var(--text);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: 4px;
}

.menu-toggle span {
    display: block;
    width: 18px;
    height: 1.5px;
    background: var(--text);
    margin: 4px 0;
    transition: all 0.25s var(--ease);
    border-radius: 1px;
}

@media (max-width: 860px) {
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: var(--header-h);
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        padding: 12px 0 16px;
        gap: 0;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
        text-align: center;
    }

    .nav-menu li a {
        padding: 14px 16px;
        font-size: 15px;
        border-radius: 0;
    }

    .menu-toggle {
        display: block;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(4px, 4px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(4px, -4px);
    }

    .lang-switch {
        margin-left: 0;
    }
}