/* ===================================
   Global Styles & Variables
   =================================== */
:root {
    /* DR!VE Brand Colors - inspired by logo */
    --primary-color: #3CB4E5;
    --primary-dark: #2A9CC9;
    --primary-light: #5BC4ED;
    --secondary-color: #000000;
    --accent-color: #3CB4E5;
    
    /* Grayscale */
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* Semantic Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

ul {
    list-style: none;
}

/* ===================================
   Container & Layout
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.section-header h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: var(--transition-base);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo-img {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    font-weight: 500;
    color: var(--gray-700);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--gray-50);
}

.cta-link {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white) !important;
    padding: var(--spacing-xs) var(--spacing-lg);
}

.cta-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.language-switcher {
    margin-left: var(--spacing-sm);
}

.lang-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--white);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-md);
    color: var(--primary-color) !important;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: var(--transition-base);
}

.lang-link:hover {
    background: var(--primary-color);
    color: var(--white) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.lang-link i {
    font-size: var(--font-size-md);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--gray-800);
    border-radius: 2px;
    transition: var(--transition-base);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 95vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    margin-top: 70px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-video-container {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    z-index: 0;
}

.hero-video-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: 177.77vh; /* 16:9 aspect ratio */
    height: 56.25vw; /* 16:9 aspect ratio */
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
    filter: blur(3px);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(0, 0, 0, 0.75) 0%, 
        rgba(0, 0, 0, 0.6) 50%, 
        rgba(60, 180, 229, 0.4) 100%);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInUp 1s ease;
}

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInRight 1s ease-out;
}

.hero-device {
    max-width: 500px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(60, 180, 229, 0.4));
    animation: float 3s ease-in-out infinite;
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

.hero-visual-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    color: var(--gray-900);
}

.hero-visual-badge i {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

.hero-features-quick {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-xl) auto;
    max-width: 600px;
}

.quick-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition-base);
}

.quick-feature:hover {
    background: rgba(60, 180, 229, 0.2);
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.quick-feature i {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
    animation: fadeIn 1s ease 0.3s both;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.02em;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    line-height: 1.6;
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 1s ease 0.6s both;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.hero-trust {
    animation: fadeInUp 1s ease 0.8s both;
}

.trust-badges {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
    opacity: 0.9;
}

.trust-item i {
    font-size: var(--font-size-lg);
    color: var(--success);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-3xl);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    animation: bounce 2s infinite;
    z-index: 2;
    cursor: pointer;
}

.scroll-indicator span {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ===================================
   Stats Bar Section
   =================================== */
.stats-bar {
    background: var(--white);
    padding: var(--spacing-xl) 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: relative;
    z-index: 3;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.stat-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon i {
    font-size: var(--font-size-xl);
    color: var(--white);
}

.stat-content {
    flex: 1;
}

/* ===================================
   Quick Features Bar
   =================================== */
.quick-features-bar {
    background: var(--white);
    padding: var(--spacing-xl) 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: relative;
    z-index: 3;
}

.quick-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.quick-features-bar .quick-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    justify-content: center;
}

.quick-features-bar .quick-feature:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.quick-features-bar .quick-feature i {
    color: var(--primary-color);
    font-size: var(--font-size-2xl);
}

.quick-features-bar .quick-feature span {
    font-weight: 600;
    color: var(--gray-800);
    font-size: var(--font-size-base);
}

/* ===================================
   How it Works Degener Section
   =================================== */
.how-it-works-degener {
    padding: var(--spacing-3xl) 0;
    background: 
        linear-gradient(
            135deg, 
            rgba(255, 255, 255, 0.85) 0%, 
            rgba(249, 250, 251, 0.80) 50%,
            rgba(255, 255, 255, 0.85) 100%
        ),
        url('../images/drive-user-vr.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

.degener-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.degener-step {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    position: relative;
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.degener-step:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.step-number {
    position: absolute;
    top: -15px;
    right: -15px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 800;
    box-shadow: var(--shadow-lg);
}

.step-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(60, 180, 229, 0.1), rgba(60, 180, 229, 0.05));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.step-icon i {
    font-size: var(--font-size-3xl);
    color: var(--primary-color);
}

.degener-step h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.degener-step p {
    color: var(--gray-600);
    line-height: 1.6;
    font-size: var(--font-size-sm);
}

.degener-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.benefit-card {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.benefit-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.benefit-card i {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.benefit-card h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.benefit-card p {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* ===================================
   Curriculum Section
   =================================== */
.curriculum-section {
    padding: var(--spacing-3xl) 0;
    background: 
        linear-gradient(
            135deg, 
            rgba(255, 255, 255, 0.85) 0%, 
            rgba(249, 250, 251, 0.80) 50%,
            rgba(255, 255, 255, 0.85) 100%
        ),
        url('../images/vr-car-hologram.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.curriculum-lesson {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
}

.curriculum-lesson:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-left-color: var(--primary-dark);
}

.lesson-number {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 800;
    box-shadow: var(--shadow-lg);
}

.curriculum-lesson h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
    padding-right: var(--spacing-2xl);
}

.curriculum-lesson p {
    font-size: var(--font-size-base);
    color: var(--gray-700);
    line-height: 1.7;
}

.curriculum-benefits {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
}

.curriculum-benefits h3 {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.curriculum-benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    list-style: none;
    padding: 0;
    margin: 0;
}

.curriculum-benefits-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--white);
    font-size: var(--font-size-base);
    font-weight: 500;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
}

.curriculum-benefits-list li:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(5px);
}

.curriculum-benefits-list i {
    font-size: var(--font-size-xl);
    color: var(--white);
    flex-shrink: 0;
}

/* ===================================
   Solution Section
   =================================== */

.stat-item .stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-item .stat-label {
    font-size: var(--font-size-xs);
    color: var(--gray-600);
    line-height: 1.3;
}

/* ===================================
   Visual Showcase Section
   =================================== */
.visual-showcase {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, #f6f9fc 0%, #e9f2f9 100%);
    position: relative;
}

.showcase-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.showcase-image {
    position: relative;
}

.showcase-hero-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(60, 180, 229, 0.25);
    animation: floatSlow 6s ease-in-out infinite;
}

@keyframes floatSlow {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.showcase-text h2 {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.showcase-text p {
    font-size: var(--font-size-base);
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.showcase-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.showcase-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--gray-700);
    line-height: 1.5;
}

.showcase-features i {
    color: var(--primary-color);
    font-size: var(--font-size-base);
    flex-shrink: 0;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--white);
    color: var(--primary-color);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ===================================
   Solution Section
   =================================== */
.solution-section {
    padding: var(--spacing-3xl) 0;
    background: 
        linear-gradient(
            135deg, 
            rgba(249, 250, 251, 0.97) 0%, 
            rgba(255, 255, 255, 0.95) 100%
        ),
        url('https://www.genspark.ai/api/files/s/2gMR5PvG');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

.value-headline {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--success);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    line-height: 1.2;
}

.solution-highlights {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin: var(--spacing-2xl) 0 var(--spacing-3xl);
    flex-wrap: wrap;
}

.highlight-box {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    flex: 1;
    min-width: 250px;
    max-width: 350px;
}

.highlight-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.highlight-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.highlight-box p {
    font-size: var(--font-size-sm);
    color: var(--white);
    line-height: 1.4;
    margin: 0;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    list-style: none;
    padding: 0;
}

.solution-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    font-size: var(--font-size-base);
    color: var(--gray-700);
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
    border: 2px solid transparent;
    box-shadow: var(--shadow-md);
}

.solution-features li:hover {
    background: var(--white);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon-box {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.feature-icon-box i {
    color: var(--white);
    font-size: var(--font-size-2xl);
}

.feature-content {
    flex: 1;
}

.feature-content strong {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.feature-content p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    line-height: 1.6;
    margin: 0;
}

/* ===================================
   Problem & Solution Section (old)
   =================================== */
.problem-solution {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.problem-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.problem-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--error), #DC2626);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.problem-icon i {
    font-size: var(--font-size-2xl);
    color: var(--white);
}

.problem-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.problem-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

.solution-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    background: var(--white);
    padding: var(--spacing-3xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

.solution-badge {
    background: linear-gradient(135deg, var(--success), #059669);
}

.solution-intro {
    font-size: var(--font-size-lg);
    color: var(--gray-700);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.solution-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.highlight-box {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.highlight-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.highlight-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.highlight-box p {
    font-size: var(--font-size-sm);
    color: var(--white);
    line-height: 1.4;
    margin: 0;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    list-style: none;
    padding: 0;
}

.solution-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    font-size: var(--font-size-base);
    color: var(--gray-700);
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
    border: 2px solid transparent;
    box-shadow: var(--shadow-md);
}

.solution-features li:hover {
    background: var(--white);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon-box {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.feature-icon-box i {
    color: var(--white);
    font-size: var(--font-size-2xl);
}

.feature-content {
    flex: 1;
}

.feature-content strong {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.feature-content p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    line-height: 1.6;
    margin: 0;
}

.solution-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.solution-hero-img {
    width: 100%;
    max-width: 550px;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: 0 20px 60px rgba(60, 180, 229, 0.3);
    animation: fadeInScale 1s ease;
}

@keyframes fadeInScale {
    0% {
        opacity: 0;
        transform: scale(0.95);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.device-frame {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
}

.floating-element {
    width: 200px;
    height: auto;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.2));
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* ===================================
   Features Section
   =================================== */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.features-flow {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.feature-flow-card {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    transition: var(--transition-base);
    position: relative;
}

.feature-flow-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    transition: var(--transition-base);
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.feature-flow-card:hover {
    border-color: var(--primary-color);
    background: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.feature-flow-card.highlight {
    background: linear-gradient(135deg, rgba(60, 180, 229, 0.08), rgba(60, 180, 229, 0.03));
    border-color: var(--primary-color);
}

.flow-number {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature-icon i {
    font-size: var(--font-size-xl);
    color: var(--white);
}

.feature-flow-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--gray-900);
}

.feature-flow-card p {
    color: var(--gray-600);
    line-height: 1.6;
    font-size: var(--font-size-sm);
}

.feature-flow-card.highlight p {
    font-size: var(--font-size-base);
}

.lessons-hint,
.lessons-list {
    display: none;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    background: var(--gray-50);
    border: 2px solid transparent;
    transition: var(--transition-base);
}

.feature-card:hover {
    border-color: var(--primary-color);
    background: var(--white);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===================================
   Benefits Section
   =================================== */
.benefits {
    padding: var(--spacing-3xl) 0;
    background: 
        linear-gradient(
            135deg, 
            rgba(255, 255, 255, 0.85) 0%, 
            rgba(249, 250, 251, 0.80) 50%,
            rgba(255, 255, 255, 0.85) 100%
        ),
        url('../images/vr-headset.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

.benefits-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.benefits-column h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.benefits-column h3 i {
    color: var(--primary-color);
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.benefits-list li {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.benefits-list li:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(3px);
}

.benefits-list i {
    color: var(--success);
    font-size: var(--font-size-base);
    margin-top: 2px;
    flex-shrink: 0;
}

.benefits-list strong {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 2px;
}

.benefits-list p {
    font-size: var(--font-size-xs);
    color: var(--gray-600);
    line-height: 1.5;
}

/* ===================================
   Video Section
   =================================== */
.video-section {
    padding: var(--spacing-3xl) 0;
    background: 
        linear-gradient(
            135deg, 
            rgba(255, 255, 255, 0.85) 0%, 
            rgba(249, 250, 251, 0.80) 50%,
            rgba(255, 255, 255, 0.85) 100%
        ),
        url('../images/vr-headset.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    background: var(--gray-900);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-2xl);
}

.video-placeholder {
    background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
    border-radius: var(--radius-2xl);
    padding: var(--spacing-3xl);
    text-align: center;
    min-height: 500px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 3px dashed var(--gray-300);
}

.video-placeholder i {
    font-size: 5rem;
    color: var(--gray-400);
    margin-bottom: var(--spacing-lg);
}

.video-placeholder h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.video-placeholder p {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
}

.video-instruction {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    margin-top: var(--spacing-lg);
    text-align: left;
    max-width: 500px;
}

.demo-video {
    width: 100%;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

/* ===================================
   Market Overview Section
   =================================== */
.market-overview {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
}

.market-overview .section-badge {
    background: rgba(255, 255, 255, 0.2);
}

.market-overview .section-header h2 {
    color: var(--white);
}

.market-overview .section-header p {
    color: rgba(255, 255, 255, 0.9);
}

.market-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.market-stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-base);
}

.market-stat-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.market-stat-card.highlight {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}

.market-stat-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.market-stat-icon i {
    font-size: var(--font-size-2xl);
    color: var(--white);
}

.market-stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
}

.market-stat-label {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.market-stat-detail {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

/* ===================================
   Partners Section
   =================================== */
.partners {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
}

.partner-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-base);
    position: relative;
}



.partner-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.partner-logo-container {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--white);
    border-radius: var(--radius-md);
}

.partner-logo-img {
    max-width: 100%;
    max-height: 60px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: brightness(1) contrast(1.1);
}

.brands-container {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    align-items: center;
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
}

.brands-container .brand-logo-img {
    max-width: 45%;
    max-height: 60px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.partner-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.partner-logo.meta {
    background: linear-gradient(135deg, #0081FB, #0668E1);
}

.partner-logo i {
    font-size: var(--font-size-3xl);
    color: var(--white);
}

.partner-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
    text-align: center;
}

.partner-card h3 .partner-badge {
    font-size: var(--font-size-md);
    padding: var(--spacing-sm) var(--spacing-lg);
}

.partner-card p {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.partner-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--success);
    color: var(--white);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.partner-badge.future {
    background: var(--warning);
}

.partner-badge.dev {
    background: linear-gradient(135deg, #0081FB, #0668E1);
}

.partner-badge.tech {
    background: var(--gray-700);
}

.partner-meta {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
}

.meta-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(0, 129, 251, 0.1);
    color: #0081FB;
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.meta-badge i {
    font-size: var(--font-size-sm);
}

/* ===================================
   Vehicles Section
   =================================== */
.vehicles {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.vehicle-brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    max-width: 800px;
    margin: 0 auto;
}

.vehicle-brand-card {
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    background: var(--white);
    border: 2px solid transparent;
    transition: var(--transition-base);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.vehicle-brand-card.available {
    border-color: var(--success);
}

.vehicle-brand-card.planned {
    border-color: var(--warning);
}

.vehicle-brand-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.vehicle-brand-logo {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.vehicle-brand-img {
    max-width: 100%;
    max-height: 70px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: brightness(1) contrast(1.05);
}

.vehicle-brand-img.vw-logo {
    max-height: 60px;
}

.vehicle-brand-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.vehicle-brand-card p {
    color: var(--gray-600);
    line-height: 1.6;
    font-size: var(--font-size-sm);
}

.vehicles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.vehicle-card {
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    background: var(--gray-50);
    border: 3px solid transparent;
    transition: var(--transition-base);
    text-align: center;
}

.vehicle-card.available {
    border-color: var(--success);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(16, 185, 129, 0.1));
}

.vehicle-card.planned {
    border-color: var(--warning);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05), rgba(245, 158, 11, 0.1));
}

.vehicle-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.vehicle-status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.vehicle-card.available .vehicle-status,
.vehicle-brand-card.available .vehicle-status {
    background: var(--success);
    color: var(--white);
}

.vehicle-card.planned .vehicle-status,
.vehicle-brand-card.planned .vehicle-status {
    background: var(--warning);
    color: var(--white);
}

.vehicle-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.vehicle-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===================================
   CTA Banner Section
   =================================== */
.cta-banner {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.3;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.cta-content h2 i {
    font-size: var(--font-size-3xl);
}

.cta-content p {
    font-size: var(--font-size-lg);
    color: var(--white);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-banner .btn-primary {
    background: var(--white);
    color: var(--primary-color);
}

.cta-banner .btn-primary:hover {
    background: var(--gray-100);
    color: var(--primary-dark);
}

.cta-banner .btn-secondary {
    background: transparent;
    border: 2px solid var(--white);
    color: var(--white);
}

.cta-banner .btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
}

/* ===================================
   FAQ Section
   =================================== */
.faq {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.faq-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.faq-column h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.faq-column h3 i {
    color: var(--primary-color);
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    font-weight: 600;
    color: var(--gray-900);
    transition: var(--transition-base);
}

.faq-question:hover {
    color: var(--primary-color);
    background: var(--gray-50);
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition-base);
    font-size: var(--font-size-sm);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-md);
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info h2 {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.contact-intro {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.contact-item i {
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    margin-top: 2px;
}

.contact-item strong {
    display: block;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.contact-item p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

.contact-item a {
    color: var(--primary-color);
    font-weight: 500;
}

.contact-item a:hover {
    text-decoration: underline;
}

.cta-box {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    color: var(--white);
}

.cta-box h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.cta-box p {
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.cta-box .btn {
    background: var(--white);
    color: var(--primary-color);
}

/* Contact Form */
.contact-form-container {
    background: var(--gray-50);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
}

.contact-form-container h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(60, 180, 229, 0.1);
}

.form-note {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    text-align: center;
    margin-top: var(--spacing-sm);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer-column h4 {
    color: var(--white);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column a {
    color: var(--gray-400);
    transition: var(--transition-base);
}

.footer-column a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-700);
    text-align: center;
    color: var(--gray-500);
}

/* ===================================
   Scroll to Top Button
   =================================== */
.scroll-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    box-shadow: var(--shadow-xl);
    transition: var(--transition-base);
    z-index: 999;
}

.scroll-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.scroll-to-top.visible {
    display: flex;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .solution-block,
    .benefits-container,
    .faq-container,
    .contact-wrapper,
    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .hero-visual {
        order: -1;
        margin-bottom: var(--spacing-xl);
    }
    
    .hero-device {
        max-width: 350px;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-features-quick {
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .degener-steps {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .degener-benefits {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .features-flow {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .hero {
        min-height: 85vh;
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .trust-badges {
        gap: var(--spacing-md);
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-xl);
        transition: var(--transition-base);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .section-header h2 {
        font-size: var(--font-size-3xl);
    }
    
    .cta-content h2 {
        font-size: var(--font-size-2xl);
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .problem-grid,
    .features-grid,
    .partners-grid,
    .vehicles-grid,
    .market-stats,
    .solution-highlights,
    .curriculum-grid,
    .solution-features {
        grid-template-columns: 1fr;
    }
    
    .value-headline {
        font-size: var(--font-size-2xl);
    }
    
    .highlight-box {
        min-width: 100%;
    }
    
    .curriculum-lesson {
        padding: var(--spacing-lg);
    }
    
    .curriculum-benefits-list {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .highlight-box {
        padding: var(--spacing-md);
    }
    
    .highlight-number {
        font-size: var(--font-size-3xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-3xl: 3rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: var(--spacing-2xl) 0;
    }
}

/* ===================================
   Utilities
   =================================== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }