/* Modern Color Palette Extracted from YR.svg Logo */
:root {
    /* Primary Colors from Logo */
    --primary-deep-blue: #1e3a8a;
    --primary-blue: #3b82f6;
    --accent-orange: #f97316;
    --light-orange: #fb923c;
    
    /* Extended Palette */
    --gradient-blue: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #60a5fa 100%);
    --gradient-orange: linear-gradient(135deg, #ea580c 0%, #f97316 50%, #fb923c 100%);
    --gradient-primary: linear-gradient(135deg, #1e40af 0%, #3b82f6 30%, #f97316 70%, #fb923c 100%);
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Modern Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Modern Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;
    
    /* Typography */
    --font-sans: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-display: 'Plus Jakarta Sans', 'Inter', sans-serif;
    
    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
}

/* Modern Reset and Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-family: var(--font-sans);
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Modern Hero Section Redesign */
.hero.hero-with-background.combined-hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    background: var(--gradient-primary);
    overflow: hidden;
}

.hero-background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(30, 58, 138, 0.1);
    z-index: 1;
}

/* Hero Content Layout */
.hero-content.main-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-8) var(--space-6);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}

/* Hero Text Section */
.hero-text-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.hero-subtitle {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--light-orange);
    margin-bottom: var(--space-2);
}

.hero-text-section h1 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    color: var(--white);
    margin-bottom: var(--space-4);
}

.hero-text-section p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--gray-100);
    margin-bottom: var(--space-6);
    max-width: 500px;
}

/* CTA Buttons */
.cta-buttons {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--white);
    color: var(--primary-deep-blue);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: var(--gray-50);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-deep-blue);
    transform: translateY(-2px);
}

/* Hero Image Section */
.hero-image-section {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.airplane-container {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.airplane-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    transition: transform 0.3s ease;
}

.airplane-decorative-circle {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    background: var(--gradient-orange);
    border-radius: var(--radius-full);
    opacity: 0.8;
    z-index: -1;
    animation: float 3s ease-in-out infinite;
}

/* Secondary Content Section */
.hero-content.secondary-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-12) var(--space-6) var(--space-8);
    text-align: center;
}

.secondary-content-inner h2 {
    font-family: var(--font-display);
    font-size: clamp(1.875rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-4);
}

.secondary-content-inner p {
    font-size: 1.125rem;
    color: var(--gray-100);
    margin-bottom: var(--space-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Feature Highlights */
.feature-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-8);
}

.highlight-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.highlight-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.highlight-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-orange);
    border-radius: var(--radius-full);
    color: var(--white);
}

.highlight-icon svg {
    width: 24px;
    height: 24px;
}

.highlight-item span {
    color: var(--white);
    font-weight: 600;
    text-align: center;
}

/* Floating Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Responsive Header Design */
@media (max-width: 1024px) {
    .nav-container {
        padding: 0 1.5rem;
    }
    
    .brand-container {
        padding: 1.25rem 1.5rem;
        margin: 0 1rem;
    }
    
    .nav-menu {
        gap: 0.25rem;
        padding: 0.5rem 0.75rem;
    }
    
    .nav-menu a {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 768px) {
    /* Mobile Navigation */
        /* Mobile Navigation Styles */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(30, 58, 138, 0.95);
        backdrop-filter: blur(40px) saturate(200%);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
        border-left: 1px solid rgba(255, 255, 255, 0.15);
        padding-top: 80px; /* Account for header */
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu li {
        margin: 1.5rem 0;
        transform: translateY(30px);
        opacity: 0;
        transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .nav-menu.active li {
        transform: translateY(0);
        opacity: 1;
    }
    
    /* Stagger animation for menu items */
    .nav-menu.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav-menu.active li:nth-child(2) { transition-delay: 0.2s; }
    .nav-menu.active li:nth-child(3) { transition-delay: 0.3s; }
    .nav-menu.active li:nth-child(4) { transition-delay: 0.4s; }
    .nav-menu.active li:nth-child(5) { transition-delay: 0.5s; }
    
    .nav-menu a {
        font-size: 1.5rem;
        font-weight: 600;
        text-align: center;
        padding: 1.25rem 2.5rem;
        border-radius: 16px;
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(15px) saturate(180%);
        border: 1px solid rgba(255, 255, 255, 0.2);
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        display: block;
        min-width: 250px;
        position: relative;
        overflow: hidden;
    }
    
    .nav-menu a::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(
            90deg,
            transparent,
            rgba(255, 255, 255, 0.1),
            transparent
        );
        transition: left 0.6s ease;
    }
    
    .nav-menu a:hover::before {
        left: 100%;
    }
    
    .nav-menu a:hover {
        background: rgba(255, 255, 255, 0.25);
        transform: translateY(-4px) scale(1.02);
        box-shadow: 0 12px 40px rgba(255, 255, 255, 0.15);
        border-color: rgba(255, 255, 255, 0.3);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
        max-width: 300px;
    }
    
    .nav-menu a {
        width: 100%;
        justify-content: center;
        padding: 1rem 1.5rem;
        font-size: 1rem;
        color: var(--primary-deep-blue);
        background: rgba(255, 255, 255, 0.6);
        border: 1px solid rgba(255, 255, 255, 0.8);
        margin-bottom: 0.5rem;
    }
    
    .nav-menu a:hover {
        background: rgba(255, 255, 255, 0.8);
        color: var(--accent-orange);
        transform: translateY(-2px) scale(1.02);
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    /* Mobile Brand Bar */
    .brand-bar {
        top: 70px;
        padding: 0.75rem 1rem;
    }
    
    .brand-container {
        padding: 1rem 1.25rem;
        margin: 0;
        border-radius: 20px;
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .logo {
        flex-shrink: 0;
    }
    
    .logo img {
        height: 45px;
        margin-right: 0.75rem;
    }
    
    .logo span {
        font-size: 1.25rem;
    }
    
    .language-switcher {
        padding: 0.375rem;
        gap: 0.25rem;
    }
    
    .lang-btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 1rem;
        justify-content: space-between;
    }
    
    .brand-container {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 1rem;
        gap: 1rem;
    }
    
    .logo {
        justify-content: center;
    }
    
    .logo img {
        height: 40px;
    }
    
    .logo span {
        font-size: 1.1rem;
    }
    
    .language-switcher {
        width: 100%;
        justify-content: center;
    }
    
    .nav-menu {
        padding: 1.5rem 1rem;
    }
}

/* Enhanced Mobile Menu Animation */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.nav-menu.active li {
    animation: slideInRight 0.3s ease-out;
}

.nav-menu.active li:nth-child(1) { animation-delay: 0.1s; }
.nav-menu.active li:nth-child(2) { animation-delay: 0.15s; }
.nav-menu.active li:nth-child(3) { animation-delay: 0.2s; }
.nav-menu.active li:nth-child(4) { animation-delay: 0.25s; }
.nav-menu.active li:nth-child(5) { animation-delay: 0.3s; }
.nav-menu.active li:nth-child(6) { animation-delay: 0.35s; }
.nav-menu.active li:nth-child(7) { animation-delay: 0.4s; }
.nav-menu.active li:nth-child(8) { animation-delay: 0.45s; }

/* Glassmorphism Enhancement Effects */
@keyframes shimmerGlass {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.brand-container::before {
    animation: shimmerGlass 3s ease-in-out infinite;
}

/* Scroll-triggered glass enhancements */
.navbar-scrolled .nav-menu {
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.25);
}

/* Removed scroll-triggered brand bar styles to keep it stable */

/* Interactive States and Micro-animations */
.nav-menu a {
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.6);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-menu a:hover::after {
    width: 80%;
}

/* Logo pulse effect on hover */
@keyframes logoPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.logo:hover img {
    animation: logoPulse 0.6s ease-in-out;
}

/* Language switcher active state enhancement */
.lang-btn.active {
    background: rgba(255, 255, 255, 0.25);
    box-shadow: 
        0 4px 16px rgba(255, 255, 255, 0.15),
        inset 0 2px 8px rgba(255, 255, 255, 0.1);
}

/* Glass reflection effect */
.brand-container,
.nav-menu {
    position: relative;
}

.brand-container::after,
.nav-menu::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.1) 0%,
        rgba(255, 255, 255, 0) 100%
    );
    border-radius: inherit;
    pointer-events: none;
}

/* Mobile Toggle Button */
.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 6px;
    cursor: pointer;
    backdrop-filter: blur(20px) saturate(180%);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1001;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 1px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.mobile-toggle:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
}

/* Mobile toggle active state (hamburger to X) */
.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

.mobile-toggle.active {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}

/* Show mobile toggle on smaller screens */
@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }
}

/* Responsive Design - Mobile First */
@media (max-width: 768px) {
    .hero-content.main-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        padding: var(--space-6) var(--space-4);
        text-align: center;
    }
    
    .hero-text-section h1 {
        font-size: clamp(2rem, 8vw, 2.5rem);
    }
    
    .hero-text-section p {
        max-width: none;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .btn {
        padding: var(--space-4) var(--space-6);
        width: 100%;
        max-width: 280px;
    }
    
    .feature-highlights {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .airplane-decorative-circle {
        width: 60px;
        height: 60px;
        top: -10px;
        right: -10px;
    }
}

@media (max-width: 480px) {
    .hero-content.main-content {
        padding: var(--space-4) var(--space-3);
    }
    
    .hero-content.secondary-content {
        padding: var(--space-8) var(--space-3) var(--space-6);
    }
    
    .highlight-item {
        padding: var(--space-4);
    }
}

/* Enhanced Glassmorphism Header Design */

/* Navigation Bar - Modern Glass Effect */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(30px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 70px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 70px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px);
    border-radius: 50px;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    font-family: var(--font-sans);
    border-radius: 25px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: -1;
}

.nav-menu a:hover::before {
    opacity: 1;
    transform: scale(1.05);
}

.nav-menu a:hover {
    color: rgba(255, 255, 255, 1);
    transform: translateY(-1px);
    box-shadow: 
        0 4px 16px rgba(255, 255, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

/* Brand Bar - Enhanced Glass Design */
.brand-bar {
    position: fixed !important;
    top: 70px !important;
    left: 0;
    right: 0;
    z-index: 999 !important;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(25px) saturate(180%) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.3);
    transition: none !important;
}

.brand-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem !important;
    background: rgba(255, 255, 255, 0.15) !important;
    backdrop-filter: blur(25px) saturate(180%) !important;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.3),
        inset 0 -1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    transition: none !important;
}

.brand-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    transition: left 1s ease;
}

.brand-container:hover::before {
    left: 100%;
}

/* Logo Enhancement */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo img {
    height: 60px;
    width: auto;
    margin-right: 1rem;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
    transition: all 0.3s ease;
}

.logo span {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0.8));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 8px rgba(255, 255, 255, 0.1);
}

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

.logo:hover img {
    transform: rotate(2deg) scale(1.05);
    filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.2));
}

/* Language Switcher Enhancement */
.language-switcher {
    display: flex;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem;
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
}

.lang-btn {
    padding: 0.75rem 1.25rem;
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    font-size: 0.9rem;
    font-family: var(--font-sans);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.lang-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    transform: scale(0);
    transition: all 0.3s ease;
}

.lang-btn.active::before,
.lang-btn:hover::before {
    transform: scale(1);
}

.lang-btn.active,
.lang-btn:hover {
    color: rgba(255, 255, 255, 1);
    box-shadow: 
        0 4px 16px rgba(255, 255, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.lang-btn.active {
    background: rgba(255, 255, 255, 0.2);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
    padding: 0.75rem;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1.2rem;
    backdrop-filter: blur(15px);
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
}

/* Scroll Effects */
.navbar-scrolled {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(40px) saturate(200%);
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

/* Removed additional scroll-triggered brand bar container styles */

/* Scroll Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-text-section > * {
    animation: fadeInUp 0.8s ease-out;
}

.hero-text-section > *:nth-child(1) { animation-delay: 0.1s; }
.hero-text-section > *:nth-child(2) { animation-delay: 0.2s; }
.hero-text-section > *:nth-child(3) { animation-delay: 0.3s; }
.hero-text-section > *:nth-child(4) { animation-delay: 0.4s; }

.airplane-container {
    animation: fadeInUp 0.8s ease-out 0.5s both;
}

.feature-highlights .highlight-item {
    animation: fadeInUp 0.8s ease-out;
}

.feature-highlights .highlight-item:nth-child(1) { animation-delay: 0.6s; }
.feature-highlights .highlight-item:nth-child(2) { animation-delay: 0.7s; }
.feature-highlights .highlight-item:nth-child(3) { animation-delay: 0.8s; }