/* ========================================
   MERGED NAVIGATION STYLES
   Combines navbar.css and enhanced-navigation.css
   ======================================== */

/* Scroll Progress Indicator */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--metallic-bronze));
    z-index: 9999;
    transition: width 0.1s ease;
}

/* Enhanced Navbar */
.navbar {
    background: rgba(var(--card-bg-rgb), 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: 0 4px 20px rgba(var(--deepwood-shade-rgb), 0.15);
    padding: 1rem 0.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-bottom: 1px solid rgba(var(--border-color-rgb), 0.1);
    z-index: 1000;
}

.navbar.scrolled {
    background: rgba(var(--card-bg-rgb), 0.98);
    box-shadow: 0 6px 30px rgba(var(--deepwood-shade-rgb), 0.2);
    padding: 0.75rem 0.5rem;
}

.navbar.navbar-hidden {
    transform: translateY(-100%);
}

/* Enhanced Brand */
.navbar-brand {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    font-weight: 700;
    padding: 0.5rem 0;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
    text-decoration: none;
}

.brand-first {
    color: var(--metallic-bronze);
    transition: color 0.3s ease;
}

.brand-second {
    color: var(--header-color);
    transition: color 0.3s ease;
}

.navbar-brand:hover {
    transform: translateY(-2px);
}

.navbar-brand:hover .brand-first {
    color: var(--accent-color);
}

.navbar-brand::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), var(--metallic-bronze));
    transition: width 0.3s ease;
}

.navbar-brand:hover::after {
    width: 100%;
}

/* Enhanced Navigation Links */
.nav-pill-row {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Homepage specific navigation styles */
.navbar-collapse.justify-content-center {
    flex-grow: 0;
}

.navbar-collapse.justify-content-center .nav-pill-row {
    justify-content: center;
}

/* Homepage brand that appears on scroll */
.homepage-brand {
    position: absolute;
    left: 1rem;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.navbar.scrolled .homepage-brand {
    opacity: 1;
    pointer-events: auto;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--text-color);
    font-weight: 500;
    padding: 0.75rem 1.2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border-radius: 8px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link i {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.nav-link:hover {
    color: var(--accent-color);
    transform: translateY(-1px);
    background: rgba(var(--accent-rgb), 0.08);
}

.nav-link.active {
    color: var(--accent-color);
    background: rgba(var(--accent-rgb), 0.12);
}

.nav-link.active::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--metallic-bronze);
    border-radius: 2px;
}

.nav-link.loading {
    position: relative;
    pointer-events: none;
}

.nav-link.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid transparent;
    border-top: 2px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Enhanced Mobile Navigation */
.navbar-toggler {
    padding: 0.5rem;
    border: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    margin-right: 0.5rem;
    background: transparent;
}

.navbar-toggler:focus {
    box-shadow: none;
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.navbar-toggler-icon {
    background-image: none;
    position: relative;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    transition: all 0.3s ease;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    transition: all 0.3s ease;
}

.navbar-toggler-icon::before {
    top: -8px;
}

.navbar-toggler-icon::after {
    bottom: -8px;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
    background: transparent;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
    transform: rotate(45deg);
    top: 0;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
    transform: rotate(-45deg);
    bottom: 0;
}

/* Theme Toggle Styles */
.theme-toggle-wrapper {
    display: flex;
    align-items: center;
    min-width: 60px;
    justify-content: flex-end;
}

.theme-toggle {
    background: none;
    border: none;
    padding: 0;
    width: 60px;
    height: 32px;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.05);
}

.toggle-track {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 32px;
    transition: all 0.3s ease;
}

.toggle-thumb {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 26px;
    height: 26px;
    background-color: var(--text-color);
    border-radius: 50%;
    transition: transform 0.3s ease;
}

[data-theme="dark"] .toggle-thumb {
    transform: translateX(28px);
}

/* Layout Structure */
.navbar .container.d-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    position: relative;
}

.navbar-left {
    width: 80px;
    min-width: 60px;
    flex-shrink: 0;
    position: relative;
}

.navbar-center {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 0;
}

/* Responsive Desktop Theme Toggle */
.theme-toggle-wrapper.d-none.d-lg-flex { 
    display: none !important; 
}

@media (min-width: 992px) {
    .theme-toggle-wrapper.d-none.d-lg-flex { 
        display: flex !important; 
    }
    .mobile-theme-toggle-wrapper { 
        display: none !important; 
    }
}

@media (max-width: 991.98px) {
    .mobile-theme-toggle-wrapper { 
        display: block !important; 
        margin-top: 2rem; 
    }
    .mobile-theme-toggle-wrapper .theme-toggle { 
        margin-right: 1.5rem; 
    }
}

/* Responsive adjustments */
@media (max-width: 991.98px) {
    .navbar .container.d-flex {
        flex-direction: row;
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    .navbar-left {
        width: 40px;
        min-width: 32px;
    }
    .theme-toggle-wrapper {
        min-width: 32px;
    }
    .navbar-center {
        min-width: 0;
    }
}

@media (max-width: 575.98px) {
    .navbar-left {
        width: 16px;
        min-width: 16px;
    }
    .theme-toggle-wrapper {
        min-width: 16px;
    }
}

/* Enhanced Mobile Menu */
@media (max-width: 991.98px) {
    .navbar-collapse {
        justify-content: flex-end !important;
        text-align: right;
        align-items: flex-start;
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 80vw;
        max-width: 340px;
        background: rgba(255,255,255,0.98); /* More solid for light mode */
        box-shadow: -8px 0 32px rgba(var(--deepwood-shade-rgb), 0.18), 0 2px 16px rgba(0,0,0,0.04);
        border-right: 1px solid rgba(0,0,0,0.06);
        border-radius: 0 0 0 16px;
        z-index: 1200;
        transform: translateX(100%); /* Slide in from the right */
        transition: transform 0.45s cubic-bezier(0.4,0,0.2,1), opacity 0.3s ease-in-out;
        opacity: 0;
        pointer-events: none;
        padding-top: 2.5rem;
        padding-bottom: 2rem;
    }
    
    [data-theme="dark"] .navbar-collapse {
        background: rgba(30,30,30,0.97); /* Semi-transparent for dark mode */
        border-right: 1px solid rgba(255,255,255,0.04);
    }
    
    .navbar-collapse.show {
        transform: translateX(0);
        opacity: 1;
        pointer-events: auto;
    }
    
    .mobile-menu-open::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0,0,0,0.25);
        /* z-index: 1199; */
        backdrop-filter: blur(2px);
        transition: opacity 0.2s;
    }
    
    .navbar-nav {
        flex-direction: column;
        align-items: flex-end;
        width: 100%;
        gap: 1.2rem;
        margin-top: 2rem;
    }
    
    .nav-link {
        text-align: right;
        width: 100%;
        justify-content: flex-end;
        padding: 1rem 1.5rem 1rem 0.5rem;
        font-size: 1.15rem;
        border-radius: 8px;
        margin-bottom: 0.2rem;
        transition: background 0.2s, color 0.2s;
    }
    
    .nav-link:active {
        background: rgba(var(--accent-rgb), 0.10);
        color: var(--accent-color);
    }
    
    .nav-pill-row {
        width: 100%;
    }
    
    .navbar-toggler {
        z-index: 1300;
        border: 2px solid var(--accent-color);
        background: rgba(var(--card-bg-rgb), 0.85);
        border-radius: 12px;
        padding: 0.6rem 0.8rem;
        transition: box-shadow 0.2s, border 0.2s;
        box-shadow: 0 2px 8px rgba(var(--deepwood-shade-rgb), 0.08);
    }
    
    .navbar-toggler-icon {
        width: 28px;
        height: 3px;
        background: var(--accent-color);
        border-radius: 2px;
        position: relative;
        transition: background 0.2s;
    }
    
    .navbar-toggler-icon::before,
    .navbar-toggler-icon::after {
        content: '';
        position: absolute;
        width: 28px;
        height: 3px;
        background: var(--accent-color);
        border-radius: 2px;
        transition: transform 0.3s, top 0.3s, bottom 0.3s;
    }
    
    .navbar-toggler-icon::before {
        top: -9px;
    }
    
    .navbar-toggler-icon::after {
        bottom: -9px;
    }
    
    .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
        background: transparent;
    }
    
    .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
        transform: rotate(45deg);
        top: 0;
    }
    
    .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
        transform: rotate(-45deg);
        bottom: 0;
    }
}

/* Mobile Layout Adjustments */
@media (max-width: 991.98px) {
    .navbar-left,
    .theme-toggle-wrapper.d-none.d-lg-flex {
        display: none !important;
    }
    
    .navbar .container.d-flex {
        justify-content: center !important;
    }
    
    .navbar-center {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    
    .navbar-toggler {
        margin-left: auto;
        margin-right: auto;
        display: block;
        position: relative;
        left: 0;
        right: 0;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.5rem;
    }
    
    .homepage-brand {
        font-size: 1.3rem;
    }
    
    .nav-link {
        padding: 0.6rem 0.8rem;
        font-size: 1rem;
    }
    
    .theme-toggle {
        width: 52px;
        height: 28px;
    }
    
    .toggle-thumb {
        width: 22px;
        height: 22px;
    }
    
    [data-theme="dark"] .toggle-thumb {
        transform: translateX(24px);
    }
    
    .breadcrumb {
        font-size: 0.9rem;
    }
    
    .breadcrumb-item {
        padding: 0.25rem 0.5rem;
    }
}

@media (max-width: 575.98px) {
    .navbar {
        padding: 0.75rem 0.25rem;
    }
    
    .navbar-brand {
        font-size: 1.3rem;
    }
    
    .nav-link {
        padding: 0.5rem 0.6rem;
        font-size: 0.95rem;
    }
    
    .breadcrumb {
        font-size: 0.85rem;
    }
    
    .breadcrumb-item {
        padding: 0.2rem 0.4rem;
    }
}

/* Accessibility */
.nav-link:focus,
.navbar-toggler:focus,
.theme-toggle:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: 4px;
}

.nav-link:focus-visible,
.navbar-toggler:focus-visible,
.theme-toggle:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .navbar {
        border-bottom: 2px solid var(--text-color);
    }
    
    .nav-link.active::before {
        background: var(--text-color);
        height: 4px;
    }
    
    .scroll-progress {
        height: 4px;
        background: var(--text-color);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .navbar,
    .nav-link,
    .navbar-brand,
    .theme-toggle,
    .navbar-toggler {
        transition: none;
    }
    
    .nav-item {
        animation: none;
    }
    
    .page-transition {
        animation: none;
    }
}

/* Animation for navbar items */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.navbar-nav .nav-item {
    animation: fadeInDown 0.5s ease forwards;
    opacity: 0;
}

.navbar-nav .nav-item:nth-child(1) { animation-delay: 0.1s; }
.navbar-nav .nav-item:nth-child(2) { animation-delay: 0.2s; }
.navbar-nav .nav-item:nth-child(3) { animation-delay: 0.3s; }
.navbar-nav .nav-item:nth-child(4) { animation-delay: 0.4s; }
.navbar-nav .nav-item:nth-child(5) { animation-delay: 0.5s; }

/* Breadcrumb Navigation */
.breadcrumb-nav {
    margin-bottom: 2rem;
}

.breadcrumb {
    background: transparent;
    padding: 0.75rem 0;
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.breadcrumb-item {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin-left: 0.5rem;
    color: var(--text-muted);
    opacity: 0.6;
}

.breadcrumb-item a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
}

.breadcrumb-item a:hover {
    color: var(--accent-color);
    background: rgba(var(--accent-rgb), 0.08);
}

.breadcrumb-item.active {
    color: var(--text-color);
    font-weight: 500;
}

/* Page Transitions */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--card-bg);
    z-index: 9999;
    transform: translateY(100%);
    animation: pageTransition 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes pageTransition {
    0% {
        transform: translateY(100%);
    }
    50% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-100%);
    }
}