.menuHeaderDiv1 {
    margin: 0;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    backdrop-filter: blur(20px);
    background: rgba(254, 254, 254, 0.95);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-subtle);
}

.modern-header {
    background: transparent;
    padding: 20px 0;
    transition: all 0.3s ease;
    position: relative;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo-section .logo {
    font-size: clamp(1.7rem, 4vw, 2rem);
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    transition: transform 0.3s ease;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-section .logo:hover {
    transform: scale(1.05);
    text-decoration: none;
}

.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-md);
}

.nav-link {
    display: block;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--border-radius-md);
    transition: all 0.3s ease;
    position: relative;
    border: 1px solid var(--border-subtle);
    background: var(--card-bg);
    box-shadow: var(--shadow-subtle);
    font-size: clamp(0.85rem, 2.5vw, 0.95rem);
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 70px;
    height: 3px;
    background: var(--primary-gradient);
    transition: transform 0.3s ease;
    border-radius: 0 0 4px 4px;
}

.nav-link:hover::before {
    transform: translateX(-50%) scaleX(1);
}

.nav-link:hover {
    color: var(--accent-purple);
    border-color: var(--accent-purple);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.nav-link:focus-visible {
    outline: 3px solid var(--accent-cyan);
    outline-offset: 3px;
    border-radius: var(--border-radius-md);
}

.nav-link.active {
    color: white;
    background: var(--primary-gradient);
    box-shadow: var(--shadow-large);
    border-color: transparent;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: var(--spacing-xs);
    padding: 12px;
    border-radius: var(--spacing-sm);
    transition: all 0.3s ease;
    background: var(--card-bg);
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--border-subtle);
}

.mobile-menu-toggle:focus-visible {
    outline: 3px solid var(--accent-cyan);
    outline-offset: 3px;
    border-radius: var(--spacing-sm);
}

.mobile-menu-toggle:hover {
    background: var(--subtle-bg);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-purple);
}

.mobile-menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.menuHeaderDiv2 {
    margin: 0;
    padding: 0;
    font-size: 15px;
    font-style: normal;
    font-weight: normal;
    text-align: left;
    vertical-align: middle;
    background: transparent;
    transition: all 0.3s ease;
    position: relative;
}

.menuHeaderDiv2 ul {
    list-style: none;
    margin: 0;
    padding: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}

.menuHeaderDiv2 ul li {
    list-style-image: none;
    line-height: inherit;
    margin: 0;
    padding: 0;
    border-left: none;
}

@media ( max-width : 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--card-bg);
        box-shadow: var(--shadow-large);
        border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
        border: 1px solid var(--border-subtle);
        border-top: none;
        z-index: var(--z-mobile-nav);
    }
    .main-nav.active {
        display: block;
    }
    .nav-list {
        flex-direction: column;
        padding: 20px;
        gap: var(--spacing-sm);
    }
    .nav-link {
        text-align: center;
        width: 100%;
    }
    .mobile-menu-toggle {
        display: flex;
    }
    .header-content {
        position: relative;
    }
}