/* =========== HEADER =========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 0;
    z-index: 100;
    transition: var(--transition);
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transform: translateY(0);
    transition: var(--transition);
    z-index: -1;
}

.header.scrolled {
    padding: 1.2rem 0;
}

.header::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    transform: scaleX(1);
    transition: transform 0.5s ease;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    position: relative;
    display: flex;
    align-items: center;
    z-index: 1;
    transition: var(--transition);
}

.logo img {
    height: 4rem;
    transition: var(--transition);
}

.header.scrolled .logo img {
    height: 3.5rem;
}

.logo::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: var(--metal-shine);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: -1;
    pointer-events: none;
}

.logo:hover::after {
    opacity: 1;
}

.nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
}

.nav-item {
    margin-left: 4rem;
    position: relative;
}

.nav-link {
    position: relative;
    color: var(--light);
    font-size: 1.6rem;
    font-weight: 500;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.5s ease;
}

.nav-link:hover {
    color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--light);
    cursor: pointer;
    font-size: 3rem;
    z-index: 10;
}

/* Language Switcher */
.lang-switcher {
    margin-left: 2rem;
    position: relative;
}

.lang-current {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--light);
    font-weight: 500;
    font-size: 1.6rem;
    text-transform: uppercase;
    padding: 0.5rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.lang-current:hover {
    border-color: var(--primary);
}

.lang-current img {
    width: 20px;
    height: 15px;
    margin-right: 8px;
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--darker);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    min-width: 120px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
}

.lang-switcher:hover .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    padding: 1rem;
    color: var(--light);
    text-decoration: none;
    font-size: 1.4rem;
    transition: var(--transition);
}

.lang-option:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--primary);
}

.lang-option img {
    width: 20px;
    height: 15px;
    margin-right: 8px;
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 98;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Mobile Adjustments */
@media screen and (max-width: 992px) {
    .mobile-toggle {
        display: block;
        transition: transform 0.3s ease;
    }

    .mobile-toggle.active {
        transform: rotate(90deg);
    }

    .nav-list {
        position: fixed;
        top: 0;
        right: -300px;
        width: 280px;
        height: 100vh;
        background-color: var(--darker);
        flex-direction: column;
        padding: 10rem 3rem 3rem;
        transition: var(--transition);
        z-index: 99;
        overflow-y: auto;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0);
    }

    .nav-list.active {
        right: 0;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
    }

    .nav-item {
        margin: 0 0 2rem;
        width: 100%;
    }

    .nav-link {
        display: block;
        font-size: 2rem;
        padding: 1rem 0;
        width: 100%;
    }
    
    .lang-switcher {
        position: relative;
        margin: 2rem 0;
        width: 100%;
        top: auto;
        right: auto;
    }
    
    .lang-current {
        width: 100%;
        justify-content: center;
        padding: 1rem;
    }
    
    .lang-dropdown {
        width: 100%;
        position: relative;
        margin-top: 0.5rem;
        text-align: center;
    }
    
    .lang-dropdown.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .lang-option {
        justify-content: center;
        padding: 1.2rem;
    }
}

/* Smaller Mobile Devices */
@media screen and (max-width: 480px) {
    .header-container {
        padding: 0 5px;
    }
    
    .logo img {
        height: 3.5rem;
    }
    
    .mobile-toggle {
        font-size: 2.5rem;
        margin-right: 5px;
    }
}