/* Navigation Component - Celestial Elegance Theme */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background-color: var(--white);
    box-shadow: none;
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-fast);
    padding: var(--spacing-md) 0;
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-sm) 0;
}

.nav-wrapper {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    position: relative;
    gap: var(--spacing-md);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

/* Logo Image */
.logo-img {
    height: 50px;
    width: auto;
    max-width: 200px;
    display: block;
    object-fit: contain;
    transition: filter var(--transition-fast);
}

.logo:hover .logo-img {
    filter: brightness(1.1);
}

/* Legacy text logo styles (kept for backwards compatibility) */
.logo-text {
    position: relative;
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
}

.logo-text::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width var(--transition-normal);
}

.logo:hover .logo-text::after {
    width: 100%;
}

/* Navigation Menu - Centered */
.nav-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Navigation Icons - Right Side */
.nav-icons {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

.nav-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: var(--border-radius-full);
    transition: all var(--transition-fast);
    color: var(--text-color);
}

.nav-icon-btn:hover {
    background-color: var(--accent-color);
    color: var(--primary-color);
}

.nav-icon-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.nav-icon-btn svg {
    width: 20px;
    height: 20px;
    stroke-width: 1.5;
}

.nav-link {
    position: relative;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--text-color);
    text-decoration: none;
    transition: color var(--transition-fast);
    border-radius: var(--border-radius-sm);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width var(--transition-normal);
}

.nav-link:hover {
    color: var(--secondary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.nav-link.active {
    color: var(--secondary-color);
    font-weight: var(--font-weight-semibold);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background-color: var(--background-color);
}

.mobile-menu-toggle:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

/* Hamburger Icon */
.hamburger {
    position: relative;
    width: 24px;
    height: 2px;
    background-color: var(--primary-color);
    transition: all var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    transition: all var(--transition-fast);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

/* Hamburger Animation */
.mobile-menu-toggle[aria-expanded="true"] .hamburger {
    background-color: transparent;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-wrapper {
        display: flex;
        flex-wrap: nowrap;
        justify-content: space-between;
        align-items: center;
    }

    /* Smaller logo on mobile */
    .logo-img {
        height: 40px;
        max-width: 150px;
    }

    /* Hide nav icons on mobile */
    .nav-icons {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
        order: 2;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--white);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        gap: var(--spacing-md);
        transform: translateX(100%);
        transition: transform var(--transition-normal), visibility var(--transition-normal), opacity var(--transition-normal);
        z-index: var(--z-modal);
        visibility: hidden;
        opacity: 0;
        overflow-y: auto;
        padding: 80px var(--spacing-lg) var(--spacing-2xl);
        box-sizing: border-box;
    }
    
    .nav-menu.active {
        transform: translateX(0);
        visibility: visible;
        opacity: 1;
    }
    
    .nav-link {
        font-size: var(--font-size-lg);
        padding: var(--spacing-md) var(--spacing-xl);
        text-align: center;
        min-width: 180px;
        border-radius: var(--border-radius-md);
        transition: all var(--transition-fast);
        display: block;
        width: 100%;
    }
    
    .nav-link::after {
        bottom: 0;
        left: 0;
        transform: none;
        width: 0;
        height: 100%;
        background-color: var(--background-color);
        z-index: -1;
    }
    
    .nav-link:hover::after,
    .nav-link.active::after {
        width: 100%;
    }
    
    /* Mobile menu backdrop */
    .nav-menu::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(4px);
        z-index: -1;
        opacity: 0;
        transition: opacity var(--transition-normal);
    }
    
    .nav-menu.active::before {
        opacity: 1;
    }
    
    /* Mobile menu header list item */
    .nav-menu .mobile-menu-header {
        position: absolute;
        top: var(--spacing-lg);
        right: var(--spacing-lg);
        list-style: none;
        width: auto;
        margin: 0;
        padding: 0;
    }

    /* Close button in mobile menu */
    .nav-menu .close-btn {
        width: 44px;
        height: 44px;
        background: none;
        border: none;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: var(--border-radius-md);
        transition: all var(--transition-fast);
        z-index: 10;
        background-color: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu .close-btn:hover {
        background-color: var(--primary-color);
        transform: scale(1.1);
    }
    
    .nav-menu .close-btn:focus {
        outline: 2px solid var(--secondary-color);
        outline-offset: 2px;
    }
    
    /* Close icon (X) styling */
    .close-icon {
        position: relative;
        width: 20px;
        height: 20px;
        display: block;
    }
    
    .close-icon::before,
    .close-icon::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 20px;
        height: 2px;
        background-color: var(--primary-color);
        transition: background-color var(--transition-fast);
    }
    
    .close-icon::before {
        transform: translate(-50%, -50%) rotate(45deg);
    }
    
    .close-icon::after {
        transform: translate(-50%, -50%) rotate(-45deg);
    }
    
    .nav-menu .close-btn:hover .close-icon::before,
    .nav-menu .close-btn:hover .close-icon::after {
        background-color: var(--white);
    }
    
    /* Improve mobile menu list styling */
    .nav-menu li {
        list-style: none;
        width: 100%;
        display: flex;
        justify-content: center;
        margin: 0;
        padding: 0;
    }
    
    /* First menu item spacing (accounting for close button) */
    .nav-menu li:first-of-type {
        margin-top: var(--spacing-lg);
    }
    
    /* Mobile menu spacing adjustments for smaller screens */
    @media (max-width: 480px) {
        .nav-menu {
            padding: 60px var(--spacing-sm) var(--spacing-xl);
            gap: var(--spacing-sm);
        }
        
        .nav-link {
            font-size: var(--font-size-base);
            padding: var(--spacing-sm) var(--spacing-lg);
            min-width: 160px;
        }
        
        .nav-menu .close-btn {
            top: var(--spacing-sm);
            right: var(--spacing-sm);
            width: 40px;
            height: 40px;
        }
        
        .nav-menu li:first-of-type {
            margin-top: var(--spacing-md);
        }
    }
}

/* Tablet Navigation */
@media (min-width: 769px) and (max-width: 1024px) {
    .nav-menu {
        gap: var(--spacing-lg);
    }
    
    .nav-link {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm);
    }
}

/* Desktop Navigation Enhancements */
@media (min-width: 1025px) {
    .nav-menu {
        gap: var(--spacing-2xl);
    }
    
    .nav-link {
        position: relative;
        overflow: hidden;
    }
    
    .nav-link::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
        transition: left var(--transition-slow);
    }
    
    .nav-link:hover::before {
        left: 100%;
    }
}

/* Sticky Navigation Animation */
.navbar.scrolled .logo-img {
    height: 40px;
}

.navbar.scrolled .logo-text {
    font-size: var(--font-size-lg);
}

.navbar.scrolled .nav-link {
    padding: var(--spacing-xs) var(--spacing-md);
}

/* Focus Management */
.nav-link:focus-visible {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
    border-radius: var(--border-radius-sm);
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .navbar {
        border-bottom: 2px solid var(--primary-color);
    }
    
    .nav-link {
        border: 1px solid transparent;
    }
    
    .nav-link:hover,
    .nav-link.active {
        border-color: var(--secondary-color);
        background-color: var(--background-color);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .navbar,
    .nav-link,
    .hamburger,
    .hamburger::before,
    .hamburger::after,
    .nav-menu {
        transition: none;
    }
    
    .nav-link::after,
    .nav-link::before {
        transition: none;
    }
}