/* ===============================================
   NAVBAR STYLES - Modern & Innovative Design
   =============================================== */

/* CSS Variables for Advanced Theming */
:root {
    --navbar-height: 80px;
    --navbar-bg: rgba(255, 255, 255, 0.90);
    --navbar-bg-solid: #ffffff;
    --navbar-bg-dark: rgba(15, 23, 42, 0.90);
    --navbar-bg-dark-solid: #0f172a;
    --navbar-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    --navbar-border: rgba(148, 163, 184, 0.2);
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --accent-light: rgba(59, 130, 246, 0.1);
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --backdrop-blur: blur(20px);
    --shadow-color: 0, 0, 0;
    --glow-color: 59, 130, 246;
}

/* Dark mode variables */
[data-theme="dark"] {
    --navbar-bg: rgba(15, 23, 42, 0.90);
    --navbar-bg-solid: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --navbar-border: rgba(255, 255, 255, 0.1);
    --navbar-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-color: 255, 255, 255;
    --accent-light: rgba(59, 130, 246, 0.15);
}

/* Modern CSS Reset & Base Styles */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
}

/* ===============================================
   MAIN NAVBAR CONTAINER
   =============================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: var(--navbar-height);
    background: var(--navbar-bg);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border-bottom: 1px solid var(--navbar-border);
    box-shadow: var(--navbar-shadow);
    z-index: 99999;
    transition: all var(--transition-medium);
    display: flex;
    align-items: center;
    padding: 0;
    margin: 0;
    isolation: isolate;
}

/* Glassmorphism effect on scroll */
.navbar.scrolled {
    background: rgba(30, 30, 47, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 12px 40px rgba(var(--shadow-color), 0.15);
    border-bottom-color: transparent;
}

/* Scroll progress indicator */
.scroll-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: var(--gradient-accent);
    transform-origin: left;
    transform: scaleX(0);
    transition: transform var(--transition-fast);
    z-index: 1001;
    border-radius: 0 2px 2px 0;
}

/* ===============================================
   NAVBAR CONTAINER & LAYOUT
   =============================================== */
.nav-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    position: relative;
}

/* ===============================================
   MODERN BRAND SECTION
   =============================================== */
.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    z-index: 1001;
}

.brand-logo {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius);
    background: var(--gradient-primary);
    box-shadow: 0 8px 25px rgba(var(--glow-color), 0.3);
    transition: all var(--transition-medium);
}

.brand-logo i {
    font-size: 1.5rem;
    color: white;
    z-index: 2;
}

.logo-pulse {
    position: absolute;
    inset: -2px;
    border-radius: var(--border-radius);
    background: var(--gradient-accent);
    opacity: 0;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.05); }
}

.brand-text {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -0.02em;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: none;
}

.brand-accent {
    background: var(--gradient-accent);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-brand:hover .brand-logo {
    transform: rotate(5deg) scale(1.05);
    box-shadow: 0 12px 35px rgba(var(--glow-color), 0.4);
}

.nav-brand:hover .logo-pulse {
    opacity: 0.8;
    animation-duration: 1s;
}

/* ===============================================
   INNOVATIVE NAVIGATION MENU
   =============================================== */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
    height: 100%;
}

.nav-item {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

/* ===============================================
   ADVANCED NAVIGATION LINKS
   =============================================== */
.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    position: relative;
    height: 48px;
    white-space: nowrap;
    overflow: hidden;
    background: transparent;
    border: 1px solid transparent;
}

.nav-icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    transition: all var(--transition-fast);
}

.nav-icon i {
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.nav-text {
    font-weight: 600;
    transition: all var(--transition-fast);
}

/* Ripple effect */
.nav-ripple {
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(circle, var(--accent-light) 0%, transparent 70%);
    transform: scale(0);
    transition: transform var(--transition-medium);
    pointer-events: none;
}

.nav-link:hover {
    color: var(--accent-color);
    background: var(--accent-light);
    border-color: rgba(var(--glow-color), 0.2);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(var(--glow-color), 0.15);
}

.nav-link:hover .nav-ripple {
    transform: scale(1);
}

.nav-link:hover .nav-icon {
    transform: scale(1.1) rotate(5deg);
}

.nav-link:hover .nav-icon i {
    color: var(--accent-color);
}

/* Active state with modern indicator */
.nav-link.active {
    color: var(--accent-color);
    background: var(--accent-light);
    border-color: rgba(var(--glow-color), 0.3);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(var(--glow-color), 0.2);
}

.nav-link.active::before {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(var(--glow-color), 0.5);
}

.nav-link.active .nav-icon {
    transform: scale(1.1);
}

.nav-link.active .nav-icon i {
    color: var(--accent-color);
}

/* Special AI Writing Link */
.nav-link.ai-feature {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(59, 130, 246, 0.1));
    border: 1px solid rgba(139, 92, 246, 0.2);
    position: relative;
    overflow: hidden;
}

.nav-link.ai-feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.nav-link.ai-feature:hover::before {
    left: 100%;
}

.ai-pulse {
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, #8b5cf6, #3b82f6, #06b6d4, #8b5cf6);
    opacity: 0.6;
    animation: ai-rotate 3s linear infinite;
}

@keyframes ai-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.ai-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--gradient-secondary);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    animation: ai-pulse 2s ease-in-out infinite;
}

@keyframes ai-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* ===============================================
   ADVANCED DROPDOWN SYSTEM
   =============================================== */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 280px;
    background: #ffffff;
    border: 1px solid var(--navbar-border);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 60px rgba(var(--shadow-color), 0.15);
    padding: 1rem 0;
    margin: 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px) scale(0.95);
    transition: all var(--transition-medium);
    z-index: 1001;
    overflow: hidden;
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 20px;
    width: 16px;
    height: 16px;
    background: #ffffff;
    border: 1px solid var(--navbar-border);
    border-bottom: none;
    border-right: none;
    transform: rotate(45deg);
    z-index: -1;
}

.dropdown:hover .dropdown-menu,
.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.dropdown-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
    position: relative;
    overflow: hidden;
}

.dropdown-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--accent-light);
    color: var(--accent-color);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.dropdown-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.dropdown-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.dropdown-desc {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.dropdown-link:hover {
    background: var(--accent-light);
    border-left-color: var(--accent-color);
    transform: translateX(4px);
}

.dropdown-link:hover .dropdown-icon {
    background: var(--accent-color);
    color: white;
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 4px 12px rgba(var(--glow-color), 0.3);
}

.dropdown-link:hover .dropdown-icon i {
    color: white;
}

.dropdown-link:hover .dropdown-title {
    color: var(--accent-color);
}

.dropdown-link:hover .dropdown-desc {
    color: var(--text-secondary);
}

.dropdown-divider {
    height: 1px;
    background: var(--navbar-border);
    margin: 0.75rem 1.5rem;
    opacity: 0.6;
}

/* User dropdown special styles */
.user-dropdown .dropdown-menu {
    min-width: 320px;
}

.user-info {
    padding: 1.5rem 1.5rem 1rem;
    border-bottom: 1px solid var(--navbar-border);
    margin-bottom: 0.5rem;
}

.user-info-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-info-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--accent-color);
    background: var(--gradient-primary);
}

.user-info-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-info-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.user-info-name {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.user-info-email {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.user-avatar {
    position: relative;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--accent-color);
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-status {
    position: absolute;
    bottom: -2px;
    right: -2px;
    width: 12px;
    height: 12px;
    background: var(--success-color);
    border: 2px solid var(--navbar-bg-solid);
    border-radius: 50%;
}

/* Admin section styling */
.admin-section-header {
    padding: 0.75rem 1.5rem 0.5rem;
    border-bottom: 1px solid var(--navbar-border);
    margin-bottom: 0.5rem;
}

.section-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
}

.section-label i {
    color: var(--warning-color);
}

.admin-link:hover .dropdown-icon {
    background: var(--warning-color);
    color: white;
}

.admin-link:hover .dropdown-icon i {
    color: white;
}

.logout-link:hover .dropdown-icon {
    background: var(--danger-color);
    color: white;
}

.logout-link:hover .dropdown-icon i {
    color: white;
}

/* ===============================================
   NAVBAR ACTIONS & THEME TOGGLE
   =============================================== */
.navbar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: 1rem;
}

.theme-toggle {
    position: relative;
    width: 44px;
    height: 26px;
    background: linear-gradient(135deg, #64748b, #94a3b8);
    border: 2px solid transparent;
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--transition-medium);
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.theme-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(var(--glow-color), 0.4);
    border-color: var(--accent-color);
}

.theme-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--glow-color), 0.3);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    color: white;
    font-size: 0.75rem;
    transition: all var(--transition-medium);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.sun-icon {
    left: 3px;
    opacity: 1;
    transform: translateY(-50%) rotate(0deg);
}

.moon-icon {
    right: 3px;
    opacity: 0;
    transform: translateY(-50%) rotate(180deg);
}

[data-theme="dark"] .theme-toggle {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

[data-theme="light"] .theme-toggle {
    background: linear-gradient(135deg, #ffecd2, #fcb69f);
}

[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: translateY(-50%) rotate(-180deg);
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: translateY(-50%) rotate(0deg);
}

/* Enhanced animations for theme switching */
.theme-toggle.theme-switching {
    animation: themeToggleSwitch 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes themeToggleSwitch {
    0% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(180deg); }
    100% { transform: scale(1) rotate(360deg); }
}

/* Pulse animation for theme changes */
.theme-toggle.theme-pulse {
    animation: themePulse 0.6s ease-out;
}

@keyframes themePulse {
    0%, 100% { 
        transform: scale(1); 
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }
    50% { 
        transform: scale(1.15); 
        box-shadow: 0 8px 25px rgba(var(--glow-color), 0.5);
    }
}

/* Glow effect on hover */
.theme-toggle.theme-hover {
    animation: themeGlow 2s ease-in-out infinite;
}

@keyframes themeGlow {
    0%, 100% { box-shadow: 0 6px 20px rgba(var(--glow-color), 0.4); }
    50% { box-shadow: 0 6px 20px rgba(var(--glow-color), 0.7); }
}

/* ===============================================
   SCROLL TO TOP BUTTON
   =============================================== */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    box-shadow: 0 8px 25px rgba(var(--glow-color), 0.3);
    transition: all var(--transition-fast);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.8);
    z-index: 1000;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.scroll-to-top:hover {
    background: var(--accent-hover);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 12px 35px rgba(var(--glow-color), 0.4);
    color: white;
}

.scroll-to-top:hover i {
    color: white;
}

.scroll-progress-ring {
    position: absolute;
    inset: -2px;
    transform: rotate(-90deg);
}

.progress-ring {
    stroke-dasharray: 125.6;
    stroke-dashoffset: 125.6;
    transition: stroke-dashoffset var(--transition-fast);
}

.dropdown:hover .dropdown-menu,
.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.dropdown-link:hover {
    color: var(--accent-color);
    background: rgba(59, 130, 246, 0.1);
    border-left-color: var(--accent-color);
    padding-left: 1.5rem;
}

.dropdown-link i {
    width: 16px;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.dropdown-link:hover i {
    color: var(--accent-color);
}

.dropdown-divider {
    height: 1px;
    background: var(--navbar-border);
    margin: 0.5rem 0;
}

/* ===============================================
   MODERN HAMBURGER MENU
   =============================================== */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    background: var(--accent-light);
    border: 2px solid var(--accent-color);
    cursor: pointer;
    padding: 0;
    position: relative;
    z-index: 1002;
    border-radius: var(--border-radius);
    transition: all var(--transition-medium);
    overflow: hidden;
}

.hamburger::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.hamburger:hover {
    border-color: var(--accent-hover);
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(var(--glow-color), 0.25);
}

.hamburger:hover::before {
    opacity: 0.1;
}

.hamburger .bar {
    width: 20px;
    height: 2px;
    background: var(--accent-color);
    border-radius: 1px;
    transition: all var(--transition-medium);
    transform-origin: center;
    position: relative;
    z-index: 1;
}

.hamburger .bar:nth-child(1) {
    margin-bottom: 2px;
}

.hamburger .bar:nth-child(2) {
    margin-bottom: 2px;
}

.menu-text {
    position: absolute;
    bottom: -24px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--accent-color);
    opacity: 0;
    transition: all var(--transition-fast);
    pointer-events: none;
}

.hamburger:hover .menu-text {
    opacity: 1;
    bottom: -20px;
}

/* Modern hamburger animation states */
.hamburger.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: scale(1.1);
}

.hamburger.active .bar {
    background: white;
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
    transform-origin: center;
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
    transform: scale(0) rotate(180deg);
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
    transform-origin: center;
}

.hamburger.active .menu-text {
    opacity: 0;
}

/* Mobile overlay */
.mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
    z-index: 998;
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ===============================================
   MODERN RESPONSIVE DESIGN
   =============================================== */

/* Desktop dropdowns - ensure they appear below menu items */
@media (min-width: 769px) {
    .dropdown-menu {
        position: absolute !important;
        top: calc(100% + 8px) !important;
        left: 0 !important;
        min-width: 280px;
        background: #ffffff !important;
        border: 1px solid var(--navbar-border);
        border-radius: var(--border-radius-lg);
        box-shadow: 0 20px 60px rgba(var(--shadow-color), 0.15);
        padding: 1rem 0;
        margin: 0;
        list-style: none;
        transform: translateY(-20px) scale(0.95);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-medium);
        z-index: 1001;
        overflow: hidden;
        max-height: none !important;
        width: auto !important;
    }
    
    .dropdown:hover .dropdown-menu,
    .dropdown.active .dropdown-menu {
        opacity: 1 !important;
        visibility: visible !important;
        transform: translateY(0) scale(1) !important;
    }
}

@media (max-width: 1200px) {
    .nav-container {
        max-width: 100%;
        padding: 0 1.5rem;
    }
    
    .nav-menu {
        gap: 0.75rem;
    }
    
    .nav-link {
        padding: 0.625rem 1rem;
        font-size: 0.9rem;
    }
    
    .dropdown-menu {
        min-width: 260px;
    }
}

@media (max-width: 1024px) {
    .nav-container {
        padding: 0 1.25rem;
    }
    
    .brand-text {
        font-size: 1.5rem;
    }
    
    .brand-logo {
        width: 40px;
        height: 40px;
    }
    
    .nav-menu {
        gap: 0.5rem;
    }
    
    .navbar-actions {
        margin-left: 0.5rem;
    }
}

@media (max-width: 768px) {
    :root {
        --navbar-height: 70px;
    }
    
    .hamburger {
        display: flex;
        order: 3;
    }
    
    .navbar-actions {
        order: 2;
        margin-left: auto;
        margin-right: 1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        width: 75vw;
        max-width: 320px;
        height: calc(100vh - var(--navbar-height));
        background: var(--navbar-bg-solid);
        border-right: 1px solid var(--navbar-border);
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 0;
        padding: 1.5rem 0;
        transform: translateX(-100%);
        transition: transform var(--transition-medium);
        overflow-y: auto;
        z-index: 999;
        box-shadow: 4px 0 20px rgba(var(--shadow-color), 0.15);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    /* Ensure navbar container maintains order */
    .nav-container {
        position: relative;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    .nav-brand {
        order: 1;
        z-index: 1001;
        font-size: 1.25rem;
    }
    
    .brand-logo {
        width: 36px;
        height: 36px;
    }
    
    .nav-item {
        width: 90%;
        height: auto;
        border-bottom: 1px solid var(--navbar-border);
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav-item:last-child {
        border-bottom: none;
    }
    
    .nav-item.dropdown {
        position: relative;
    }
    
    .nav-link {
        width: 100%;
        padding: 1rem 1.5rem;
        font-size: 1rem;
        border-radius: 0;
        justify-content: flex-start;
        height: auto;
        display: flex;
        align-items: center;
        gap: 0.75rem;
        background: transparent;
        border: none;
        color: var(--text-primary);
        transition: all var(--transition-fast);
    }
    
    .nav-link:hover {
        background: var(--accent-color);
        color: white;
        transform: translateX(8px);
        border-left: 4px solid var(--accent-hover);
        padding-left: calc(1.5rem - 4px);
    }
    
    .nav-link:hover .nav-icon {
        color: white;
    }
    
    .nav-link:hover .nav-icon i {
        color: white;
    }
    
    .nav-link:hover .nav-text {
        color: white;
    }
    
    .nav-link.active {
        background: var(--accent-light);
        border-left: 4px solid var(--accent-color);
        padding-left: calc(1.5rem - 4px);
        color: var(--accent-color);
    }
    
    .nav-link.active::before {
        display: none;
    }
    
    .nav-icon {
        width: 20px;
        height: 20px;
        flex-shrink: 0;
    }
    
    .nav-icon i {
        font-size: 1rem;
        transition: all var(--transition-fast);
    }
    
    .nav-text {
        font-size: 1rem;
        font-weight: 600;
        transition: all var(--transition-fast);
    }
    
    /* Improve touch responsiveness */
    .nav-link {
        min-height: 48px;
        cursor: pointer;
        -webkit-tap-highlight-color: rgba(var(--glow-color), 0.2);
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
        touch-action: manipulation;
    }
    
    /* Force dropdown to show on touch/click */
    .dropdown.active .dropdown-menu {
        display: block !important;
        max-height: 1000px !important;
        padding: 0.5rem 0 !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    .nav-link:active {
        background: var(--accent-hover);
        color: white;
        transform: scale(0.98) translateX(4px);
    }
    
    /* Enhanced mobile dropdown */
    .dropdown-menu {
        position: static;
        background: rgba(var(--glow-color), 0.05);
        border: none;
        border-radius: 0;
        box-shadow: inset 0 1px 3px rgba(var(--shadow-color), 0.1);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        padding: 0;
        opacity: 1;
        visibility: visible;
        transform: none;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-medium) ease, padding var(--transition-medium) ease;
        width: 100%;
        margin: 0;
        min-width: auto;
        border-top: 1px solid rgba(var(--glow-color), 0.15);
        display: block;
    }
    
    /* Fix for dropdown functionality - ensure active state works */
    .dropdown.active .dropdown-menu,
    .dropdown:hover .dropdown-menu {
        max-height: 1200px !important;
        padding: 0.5rem 0 !important;
        transition: max-height 0.4s ease-out, padding 0.4s ease-out;
    }
    
    /* Ensure smooth transitions */
    .dropdown-menu {
        transition: max-height 0.3s ease-in, padding 0.3s ease-in;
    }
    
    /* Remove any possible dropdown arrows on mobile */
    .nav-link::after,
    .dropdown-toggle::after {
        display: none !important;
        content: none !important;
    }

    .dropdown-menu::before {
        display: none;
    }    .dropdown-link {
        display: flex;
        align-items: center;
        padding: 0.75rem 1.5rem;
        border-left: none;
        background: transparent;
        font-size: 0.85rem;
        gap: 0.5rem;
        border-bottom: 1px solid rgba(var(--glow-color), 0.08);
        color: var(--text-secondary);
        text-decoration: none;
        transition: all var(--transition-fast);
        width: 100%;
        min-height: 44px;
        cursor: pointer;
        -webkit-tap-highlight-color: rgba(var(--glow-color), 0.2);
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }
    
    .dropdown-link:active {
        background: var(--accent-hover);
        color: white;
        transform: scale(0.98) translateX(3px);
    }
    
    .dropdown-link:last-child {
        border-bottom: none;
    }
    
    .dropdown-link:hover {
        background: var(--accent-color);
        color: white;
        transform: translateX(6px);
        border-left: 3px solid var(--accent-hover);
        padding-left: calc(1.5rem - 3px);
    }
    
    .dropdown-link:hover .dropdown-icon {
        background: white;
        color: var(--accent-color);
    }
    
    .dropdown-link:hover .dropdown-title {
        color: white;
    }
    
    .dropdown-link:hover .dropdown-desc {
        color: rgba(255, 255, 255, 0.8);
    }
    
    .dropdown-icon {
        width: 20px;
        height: 20px;
        border-radius: 4px;
        flex-shrink: 0;
    }
    
    .dropdown-title {
        font-size: 0.85rem;
        font-weight: 600;
        line-height: 1.2;
    }
    
    .dropdown-desc {
        font-size: 0.75rem;
        opacity: 0.75;
        line-height: 1.2;
    }
    
    /* User dropdown mobile styles */
    .user-dropdown .dropdown-menu {
        background: rgba(var(--glow-color), 0.03);
        border-top: 1px solid rgba(var(--glow-color), 0.1);
    }
    
    .user-dropdown.active .dropdown-menu {
        max-height: 800px !important;
        padding: 0.5rem 0 !important;
    }
    
    .user-info {
        padding: 1.5rem 2rem;
        background: rgba(var(--glow-color), 0.05);
    }
    
    .user-info-avatar {
        width: 56px;
        height: 56px;
    }
    
    .user-info-name {
        font-size: 1.2rem;
    }
    
    .user-info-email {
        font-size: 0.9rem;
    }
    
    /* Auth links mobile */
    .auth-item .nav-link {
        background: var(--accent-light);
        margin: 0.5rem 1rem;
        border-radius: var(--border-radius);
        border: 2px solid var(--accent-color);
        font-weight: 700;
        text-align: center;
        justify-content: center;
    }
    
    .auth-item .nav-link:hover {
        background: var(--accent-color);
        color: white;
        transform: scale(1.02);
        border-left-width: 2px;
        padding-left: 2rem;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    .nav-brand {
        font-size: 1.1rem;
        gap: 0.5rem;
    }
    
    .brand-logo {
        width: 32px;
        height: 32px;
    }
    
    .brand-logo i {
        font-size: 1.2rem;
    }
    
    .nav-menu {
        width: 90vw;
        padding: 1.5rem 0;
    }
    
    .nav-link {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }
    
    .dropdown-link {
        padding: 0.875rem 2.5rem;
        font-size: 0.95rem;
    }
    
    .hamburger {
        width: 40px;
        height: 40px;
    }
    
    .theme-toggle {
        width: 36px;
        height: 20px;
    }
    
    .scroll-to-top {
        width: 40px;
        height: 40px;
        bottom: 1.5rem;
        right: 1.5rem;
    }
    
    /* Auth buttons width for small mobile screens */
    .auth-item .nav-link {
        width: 50%;
        margin: 0.5rem auto;
    }
}

/* ===============================================
   ACCESSIBILITY & PERFORMANCE
   =============================================== */
.nav-link:focus,
.dropdown-link:focus,
.hamburger:focus,
.theme-toggle:focus,
.scroll-to-top:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

/* Keyboard navigation support */
.nav-link:focus-visible,
.dropdown-link:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(var(--glow-color), 0.2);
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --navbar-bg: #ffffff;
        --navbar-bg-solid: #ffffff;
        --text-primary: #000000;
        --text-secondary: #333333;
        --accent-color: #0000ff;
        --navbar-border: #000000;
        --accent-light: rgba(0, 0, 255, 0.1);
    }
    
    [data-theme="dark"] {
        --navbar-bg: #000000;
        --navbar-bg-solid: #000000;
        --text-primary: #ffffff;
        --text-secondary: #cccccc;
        --navbar-border: #ffffff;
        --accent-color: #66b3ff;
    }
    
    .nav-link,
    .dropdown-link {
        border: 1px solid transparent;
    }
    
    .nav-link:hover,
    .dropdown-link:hover {
        border-color: var(--accent-color);
    }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .logo-pulse,
    .ai-pulse,
    .nav-ripple {
        display: none;
    }
}

/* Print styles */
@media print {
    .navbar,
    .scroll-to-top {
        display: none;
    }
}

/* ===============================================
   MODERN UTILITY CLASSES
   =============================================== */
.navbar-hidden {
    transform: translateY(-100%);
}

.navbar-visible {
    transform: translateY(0);
}

/* Loading state */
.navbar.loading {
    pointer-events: none;
    opacity: 0.7;
}

.navbar.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
    animation: loading-bar 2s ease-in-out infinite;
}

@keyframes loading-bar {
    0% { transform: translateX(-100%); }
    50% { transform: translateX(0); }
    100% { transform: translateX(100%); }
}

/* Success/Error states for form submissions */
.navbar.success {
    border-bottom-color: var(--success-color);
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.2);
}

.navbar.error {
    border-bottom-color: var(--danger-color);
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.2);
}

/* ===============================================
   PERFORMANCE OPTIMIZATIONS
   =============================================== */
.navbar,
.nav-menu,
.dropdown-menu {
    will-change: transform;
}

.navbar.scrolled {
    will-change: auto;
}

/* GPU acceleration for smooth animations */
.nav-link,
.dropdown-link,
.hamburger,
.brand-logo {
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* ===============================================
   DARK MODE TRANSITIONS
   =============================================== */
[data-theme="dark"] .navbar {
    transition: background var(--transition-medium), 
                border-color var(--transition-medium),
                box-shadow var(--transition-medium);
}

[data-theme="dark"] .nav-link,
[data-theme="dark"] .dropdown-link {
    transition: color var(--transition-fast),
                background var(--transition-fast);
}

/* ===============================================
   CUSTOM SCROLLBAR FOR MOBILE MENU
   =============================================== */
@media (max-width: 768px) {
    .nav-menu::-webkit-scrollbar {
        width: 4px;
    }
    
    .nav-menu::-webkit-scrollbar-track {
        background: transparent;
    }
    
    .nav-menu::-webkit-scrollbar-thumb {
        background: var(--accent-color);
        border-radius: 2px;
    }
    
    .nav-menu::-webkit-scrollbar-thumb:hover {
        background: var(--accent-hover);
    }
}
    
/* Mobile dropdown adjustments */
.dropdown-menu {
    position: static;
    background: rgba(59, 130, 246, 0.05);
    border: none;
    border-radius: 0;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    padding: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium), padding var(--transition-medium);
    width: 100%;
}

.dropdown.active .dropdown-menu {
    max-height: 400px;
    padding: 0.5rem 0;
}

.dropdown-link {
    padding: 0.75rem 2.5rem;
    border-left: none;
    background: transparent;
    font-size: 0.95rem;
}

.dropdown-link:hover {
    padding-left: 2.5rem;
    background: rgba(59, 130, 246, 0.1);
    border-left: 3px solid var(--accent-color);
}

/* Improved hamburger positioning */
.hamburger {
    position: relative;
    z-index: 1002;
    margin-left: auto;
}

/* Better mobile menu overlay */
.nav-menu.active::before {
    content: '';
    position: fixed;
    top: 0;
    left: 100%;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
    backdrop-filter: blur(2px);
}

/* ===============================================
   PRICING INDICATORS
   =============================================== */

/* Upgrade indicator for free plan users */
.upgrade-indicator {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 8px;
    height: 8px;
    background: var(--warning-color);
    border-radius: 50%;
    animation: pulse-upgrade 2s infinite;
}

@keyframes pulse-upgrade {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.2);
    }
}

/* Upgrade badge in dropdown */
.upgrade-badge {
    position: absolute;
    top: 50%;
    right: 1rem;
    transform: translateY(-50%);
    background: var(--warning-color);
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    animation: glow-upgrade 2s infinite alternate;
}

@keyframes glow-upgrade {
    from {
        box-shadow: 0 0 5px rgba(245, 158, 11, 0.5);
    }
    to {
        box-shadow: 0 0 15px rgba(245, 158, 11, 0.8);
    }
}

/* Subscription status in user dropdown */
.dropdown-link:has(.upgrade-badge) {
    background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.1), transparent);
    border-left: 3px solid var(--warning-color);
}

/* Plan indicator styles */
.plan-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.125rem 0.5rem;
    border-radius: 12px;
    background: var(--accent-light);
    color: var(--accent-color);
}

.plan-indicator.free {
    background: rgba(156, 163, 175, 0.1);
    color: #6b7280;
}

.plan-indicator.premium {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(251, 191, 36, 0.1));
    color: var(--warning-color);
}

.plan-indicator.enterprise {
    background: linear-gradient(135deg, rgba(147, 51, 234, 0.1), rgba(168, 85, 247, 0.1));
    color: #7c3aed;
}