/* Navigation Header Styles */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #FFFFFF;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000; /* Ensura always on top across all pages */
    padding: var(--space-4) 0;
    transition: all var(--transition-base);
}

.site-header .container {
    padding-left: 2rem;
    padding-right: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.site-header.scrolled {
    padding: var(--space-3) 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

.logo-link {
    display: flex;
    align-items: center;
    transition: transform var(--transition-base);
    cursor: pointer;
    pointer-events: auto;
    text-decoration: none;
    position: relative;
    z-index: 100;
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo-img {
    height: 65px;
    width: auto;
    display: block;
    cursor: pointer;
    pointer-events: auto;
}

.main-nav {
    display: flex;
    gap: var(--space-8);
    align-items: center;
}

.nav-link {
    font-size: var(--text-base);
    font-weight: 500;
    color: #1a1a1a;
    position: relative;
    padding: var(--space-2) 0;
    transition: color var(--transition-base);
    margin-right: 32px;
}

.nav-link:last-child {
    margin-right: 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-brand-blue-dark) 0%, var(--color-brand-blue-light) 100%);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: #1a3d6b;
}

.nav-link:hover::after {
    width: 100%;
}

/* Adjust hero section for fixed header */
.hero-section {
    padding-top: calc(var(--space-20) + 70px);
}

/* Mobile Navigation Toggles */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 38px;
    height: 38px;
    background: #f8f9fa;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    cursor: pointer;
    z-index: 1001;
    padding: 8px;
    transition: all 0.3s ease;
}

.nav-toggle .bar {
    width: 100%;
    height: 3px;
    background-color: var(--color-deep-navy);
    border-radius: 2px;
    transition: all 0.3s ease-in-out;
}

@media (max-width: 992px) {
    .site-header {
        padding: var(--space-2) 0;
    }

    .site-header .container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    .logo-img {
        height: 48px;
    }

    .nav-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        height: 100vh;
        background: #FFFFFF;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-8);
        padding: var(--space-20) 0;
        transition: right 0.4s cubic-bezier(0.77,0.2,0.05,1.0);
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        z-index: 1000;
        visibility: hidden;
        overflow-y: auto;
    }

    .main-nav.active {
        right: 0;
        visibility: visible;
    }

    .nav-link {
        font-size: var(--text-2xl);
        margin: 0 !important;
        padding: var(--space-4) 0;
        width: 100%;
        text-align: center;
    }

    .lang-switcher {
        margin: var(--space-8) 0 0 0;
        background: rgba(0,0,0,0.05);
        padding: 8px 16px;
        border-radius: 30px;
    }

    /* Hamburger Animation */
    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
}

/* Lang Styles */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 1rem;
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 8px;
    border-radius: 20px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.lang-btn {
    background: none;
    border: none;
    font-size: 0.85rem;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    padding: 2px 6px;
    transition: all 0.2s;
    border-radius: 4px;
}

.lang-btn.active {
    color: #1a3d6b !important;
    font-weight: 700;
}

.lang-btn:hover:not(.active) {
    color: #1a3d6b;
}

.lang-separator {
    color: #ccc;
    font-size: 0.8rem;
    user-select: none;
}