/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--spacing-sm) var(--spacing-md);
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    background: rgba(5, 5, 7, 0.8);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--spacing-xs) var(--spacing-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-fast);
}

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

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-fast);
}

/* Hero Layout */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--spacing-xl);
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    z-index: 1;
}

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: var(--spacing-lg) var(--spacing-md);
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-icon {
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.social-icon:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--glass-border);
        transform: translateY(-150%);
        transition: var(--transition-normal);
    }

    .nav-links.open {
        transform: translateY(0);
    }

    .menu-toggle {
        display: flex;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        order: -1;
        display: flex;
        justify-content: center;
    }
}