.site-header {
    background-color: var(--background-dark);
    padding: 15px 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.brand-logo-link {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-light);
    text-transform: uppercase;
    text-decoration: none;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.brand-logo-link img {
    height: 80px;
    margin-right: 10px;
    vertical-align: middle;
}

.main-navigation {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.main-navigation a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    padding: 5px 0;
    position: relative;
    transition: color 0.3s ease;
    white-space: nowrap;
}

.main-navigation a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width 0.3s ease;
}

.main-navigation a:hover {
    color: var(--secondary-color);
}

.main-navigation a:hover::after,
.main-navigation a.active::after {
    width: 100%;
}

@media (max-width: 768px) {
    .brand-logo-link {
        font-size: 1.5rem;
    }
    .brand-logo-link img {
        height: 60px;
    }
    .main-navigation {
        gap: 15px;
    }
    .main-navigation a {
        font-size: 0.9rem;
        padding: 3px 0;
    }
    .header-content {
        width: auto;
    }
}

@media (max-width: 480px) {
    .site-header {
        padding: 10px 0;
    }
    .brand-logo-link {
        font-size: 1.3rem;
    }
    .brand-logo-link img {
        height: 60px;
    }
    .main-navigation {
        gap: 8px;
    }
    .main-navigation a {
        font-size: 0.75rem;
    }
}