/* Navigation Component - Confident Simplicity */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(254, 252, 248, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: var(--z-fixed);
    transition: var(--transition-normal);
}

.nav.scrolled {
    background: rgba(254, 252, 248, 0.98);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: var(--transition-normal);
}

.nav-logo:hover {
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
    align-items: center;
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: var(--transition-normal);
    position: relative;
    padding: var(--space-xs) 0;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition-normal);
}

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

.nav-links a.active {
    color: var(--color-accent);
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: var(--transition-normal);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

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

.mobile-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: var(--space-md);
}

.mobile-nav.active {
    display: block;
}

.mobile-nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.mobile-nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-normal);
}

.mobile-nav-links a:hover,
.mobile-nav-links a.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-container {
        padding: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .nav-logo {
        font-size: var(--font-size-base);
    }
    
    .mobile-nav {
        padding: var(--space-sm);
    }
}

/* Navigation Animations */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-nav.active {
    animation: slideDown 0.3s ease-out;
}

/* Focus States */
.nav-links a:focus,
.nav-logo:focus,
.nav-toggle:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .nav {
        background: var(--color-surface);
        border-bottom: 2px solid var(--color-text-primary);
    }
    
    .nav-links a::after {
        height: 3px;
    }
}