.main-nav {
    background: white;
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem var(--spacing-md);
    display: flex;
    align-items: center;
}

.logo {
    color: var(--primary-darker);
    text-decoration: none;
    font-weight: bold;
    font-size: 1.2rem;
    margin-right: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-links li {
    margin: 0 var(--spacing-sm);
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
    display: block;
}

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

.lang-switch {
    display: flex;
    align-items: center;
    margin-left: var(--spacing-md);
    border-left: 1px solid var(--primary-lighter);
    padding-left: var(--spacing-md);
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    padding: 0.5rem 0.8rem;
    transition: all 0.3s ease;
    position: relative;
}

.lang-btn:first-child {
    margin-right: 0.5rem;
}

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

.lang-btn.active {
    color: var(--primary);
    font-weight: 500;
}

.lang-btn.active:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--primary);
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        padding: var(--spacing-sm);
    }

    .nav-links {
        margin: var(--spacing-md) 0;
        flex-wrap: wrap;
        justify-content: center;
    }

    .lang-switch {
        margin: var(--spacing-sm) 0;
        padding: 0;
        border-left: none;
        width: 100%;
        justify-content: center;
    }
}