/* header.css */
header {
    background-color: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    position: absolute;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(-20px);
    animation: headerSlideDown 0.8s ease forwards;
}

header.scrolled {
    background-color: var(--white);
    backdrop-filter: none;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    position: fixed;
}

@keyframes headerSlideDown {
    to { opacity: 1; transform: translateY(0); }
}

.header-container {
    max-width: 1296px;
    margin: 0 auto;
    padding: 1.08rem 1.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo img { height: 45px; transition: 0.3s; }

.header-nav { display: flex; gap: 2.25rem; align-items: center; }

.header-nav a {
    color: var(--white);
    text-decoration: none;
    font-size: 0.855rem;
    font-weight: 600;
    position: relative;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

header.scrolled .header-nav a { color: var(--dark-gray); text-shadow: none; }

.header-nav a::after {
    content: ''; position: absolute; bottom: -4.5px; left: 0;
    width: 0; height: 1.8px; background-color: var(--white); transition: 0.3s;
}

header.scrolled .header-nav a::after { background-color: var(--primary-red); }

.header-nav a:hover::after, .header-nav a.active::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 1.8rem; }

.language-switcher {
    display: flex; gap: 0.45rem;
    background: rgba(255, 255, 255, 0.15);
    padding: 0.45rem; border-radius: 7.2px;
}

header.scrolled .language-switcher { background: rgba(0, 0, 0, 0.05); }

.lang-btn {
    background: transparent; border: none; color: rgba(255, 255, 255, 0.7);
    font-size: 0.765rem; font-weight: 600; padding: 0.36rem 0.72rem;
    border-radius: 5.4px; cursor: pointer; transition: 0.3s;
}

header.scrolled .lang-btn { color: rgba(0, 0, 0, 0.5); }

.lang-btn.active { background: var(--white); color: var(--primary-red); }

header.scrolled .lang-btn.active { background: var(--primary-red); color: var(--white); }

.mobile-only { display: none; }

.burger-menu {
    display: none; flex-direction: column; gap: 6px;
    background: none; border: none; cursor: pointer; z-index: 1100;
}

.burger-menu span {
    width: 25px; height: 2px; background: var(--white); transition: 0.3s;
}

header.scrolled .burger-menu span { background: var(--dark-gray); }

@media (max-width: 968px) {
    .desktop-only { display: none; }
    .mobile-only { display: flex; }
    .burger-menu { display: flex; }

    .header-nav {
        position: fixed; top: 0; right: -100%;
        width: 100%; height: 100vh;
        background: var(--white);
        flex-direction: column; justify-content: center;
        transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1050; gap: 2rem;
    }

    .header-nav.open { right: 0; }

    .header-nav a { color: var(--dark-gray) !important; font-size: 1.4rem; text-shadow: none; }

    /* Исправление цвета крестика при открытии */
    .burger-menu.active span { background: var(--dark-gray) !important; }
    
    .burger-menu.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .burger-menu.active span:nth-child(2) { opacity: 0; }
    .burger-menu.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

    /* Стили для переключателя внутри меню */
    .header-nav .language-switcher {
        background: rgba(0, 0, 0, 0.05);
        margin-top: 1rem;
    }
    
    .header-nav .lang-btn { color: rgba(0, 0, 0, 0.5); }
    .header-nav .lang-btn.active { background: var(--primary-red); color: var(--white); }

    body.menu-open { overflow: hidden; }
}