/* Modern Landing Page Styles for Askademia - Enhanced Version - Updated 2025-08-26 - Hero Fix v2 */

/* CSS Variables for Modern Design System */
:root {
    /* Modern Color Palette */
    --primary-50: #f0f9ff;
    --primary-100: #e0f2fe;
    --primary-200: #bae6fd;
    --primary-300: #7dd3fc;
    --primary-400: #38bdf8;
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-800: #075985;
    --primary-900: #0c4a6e;
    
    /* Vibrant Accent Colors */
    --accent-50: #f0fdf4;
    --accent-100: #dcfce7;
    --accent-200: #bbf7d0;
    --accent-300: #86efac;
    --accent-400: #4ade80;
    --accent-500: #22c55e;
    --accent-600: #16a34a;
    --accent-700: #15803d;
    --accent-800: #166534;
    --accent-900: #14532d;
    
    /* Purple Accent */
    --purple-50: #faf5ff;
    --purple-100: #f3e8ff;
    --purple-200: #e9d5ff;
    --purple-300: #d8b4fe;
    --purple-400: #c084fc;
    --purple-500: #a855f7;
    --purple-600: #9333ea;
    --purple-700: #7c3aed;
    --purple-800: #6b21a8;
    --purple-900: #581c87;
    
    /* Orange Accent */
    --orange-50: #fff7ed;
    --orange-100: #ffedd5;
    --orange-200: #fed7aa;
    --orange-300: #fdba74;
    --orange-400: #fb923c;
    --orange-500: #f97316;
    --orange-600: #ea580c;
    --orange-700: #c2410c;
    --orange-800: #9a3412;
    --orange-900: #7c2d12;
    
    /* Neutral Colors */
    --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;
    
    --white: #ffffff;
    --black: #000000;
    
    /* 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: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    --font-size-7xl: 4.5rem;
    --font-size-8xl: 6rem;
    
    /* Spacing */
    --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;
    --space-32: 8rem;
    --space-40: 10rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-glow: 0 0 20px rgb(14 165 233 / 0.3);
    --shadow-glow-purple: 0 0 20px rgb(168 85 247 / 0.3);
    --shadow-glow-green: 0 0 20px rgb(34 197 94 / 0.3);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

/* Override main.css styles for intro page */
body {
    font-family: var(--font-family) !important;
    line-height: 1.6 !important;
    color: var(--gray-800) !important;
    background-color: var(--white) !important;
    overflow-x: hidden !important;
    height: auto !important;
    display: block !important;
    justify-content: unset !important;
    align-items: unset !important;
}

/* Landing Page Container */
.landing-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo .logo-text {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-600), var(--purple-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

/* Enhanced Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-decoration: none;
    transition: var(--transition-normal);
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    min-height: 36px;
    min-width: 120px;
    box-sizing: border-box;
    outline: none;
}

/* Ensure button and anchor elements look identical */
button.btn, a.btn {
    border: 2px solid transparent;
    outline: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-600), rgba(79, 70, 229, 0.92));
    color: var(--white);
    box-shadow: var(--shadow-md);
    border: 2px solid transparent !important;
    outline: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-700), rgba(67, 56, 202, 0.92));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}



.btn-secondary {
    background: var(--white);
    color: var(--primary-600);
    border-color: var(--primary-200);
}

.btn-secondary:hover {
    background: var(--primary-50);
    border-color: var(--primary-300);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.8);
    color: var(--gray-700);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.5);
    color: var(--gray-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-2xl);
}

.btn-icon {
    font-size: var(--font-size-base);
}

/* Hero Section */
.hero {
    padding: 120px 0 var(--space-40) !important;
    background: linear-gradient(135deg, var(--primary-100) 0%, var(--purple-100) 30%, var(--accent-100) 70%, var(--orange-100) 100%) !important;
    position: relative !important;
    overflow: hidden !important;
    margin-top: 80px !important; /* Account for fixed navbar */
    min-height: 80vh !important;
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(14, 165, 233, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(168, 85, 247, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(34, 197, 94, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 60% 60%, rgba(249, 115, 22, 0.15) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 10%, rgba(168, 85, 247, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 90%, rgba(34, 197, 94, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 70% 30%, rgba(249, 115, 22, 0.1) 0%, transparent 40%);
    animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
    text-align: center;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--white), var(--gray-50));
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--space-6);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
    animation: pulse 2s ease-in-out infinite;
}

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

.badge-icon {
    font-size: var(--font-size-lg);
}

.hero-title {
    font-size: var(--font-size-8xl);
    font-weight: 900;
    line-height: 0.9;
    margin-bottom: var(--space-4);
    text-align: center;
    background: linear-gradient(135deg, var(--primary-600), var(--purple-600), var(--accent-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    0% { filter: drop-shadow(0 0 10px rgba(14, 165, 233, 0.3)); }
    100% { filter: drop-shadow(0 0 20px rgba(168, 85, 247, 0.3)); }
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--space-4);
    text-align: center;
    background: linear-gradient(135deg, var(--primary-600), var(--accent-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-award {
    text-align: center;
    margin-bottom: var(--space-6);
}

.award-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--white), var(--gray-50));
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
}

.award-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--orange-50), var(--white));
    border-color: var(--orange-200);
}

.award-icon {
    font-size: var(--font-size-lg);
}

.award-text {
    white-space: nowrap;
}

.hero-description {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    margin-bottom: var(--space-8);
    line-height: 1.7;
    text-align: center;
}

.hero-stats {
    display: flex;
    gap: var(--space-8);
}

.stat {
    text-align: center;
    padding: var(--space-4);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
}

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

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-600), var(--accent-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    font-weight: 500;
    margin-top: var(--space-1);
}

/* Hero Demo */
.hero-demo {
    animation: fadeInRight 0.8s ease-out 0.3s both;
}

.demo-container {
    background: var(--white);
    border-radius: var(--radius-3xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    position: relative;
}

.demo-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-500), var(--purple-500), var(--accent-500));
}

.demo-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    background: linear-gradient(135deg, var(--gray-50), var(--white));
    border-bottom: 1px solid var(--gray-200);
}

.demo-dots {
    display: flex;
    gap: var(--space-2);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: var(--gray-300);
    transition: var(--transition-fast);
}

.dot:nth-child(1) { background: #ff5f57; }
.dot:nth-child(2) { background: #ffbd2e; }
.dot:nth-child(3) { background: #28ca42; }

.demo-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-600);
}

.demo-messages {
    padding: var(--space-6);
    min-height: 200px;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.message {
    display: flex;
    gap: var(--space-3);
    align-items: flex-start;
    animation: slideInUp 0.5s ease-out;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.avatar-icon {
    font-size: var(--font-size-lg);
}

.message-content {
    flex: 1;
    background: linear-gradient(135deg, var(--gray-50), var(--white));
    padding: var(--space-4);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.message-content p {
    margin: 0;
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-700);
}

/* Features Section */
.features {
    padding: var(--space-40) 0;
    background: var(--white);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(14, 165, 233, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(168, 85, 247, 0.05) 0%, transparent 50%);
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    position: relative;
    z-index: 1;
}

.features-title {
    text-align: center;
    font-size: var(--font-size-4xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--gray-900), var(--primary-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-16);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
}

.feature-card {
    text-align: center;
    padding: var(--space-8);
    border-radius: var(--radius-2xl);
    background: linear-gradient(135deg, var(--white), var(--gray-50));
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-500), var(--accent-500));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
    background: var(--white);
}

.feature-icon {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--space-4);
    display: block;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}

.feature-description {
    color: var(--gray-600);
    line-height: 1.6;
}

/* CTA Section */
.cta {
    padding: var(--space-40) 0;
    background: linear-gradient(135deg, var(--primary-600), var(--purple-600), var(--accent-600));
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: float 15s ease-in-out infinite reverse;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--space-4);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.cta-description {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-8);
    opacity: 0.9;
}

.cta-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

.cta .btn-primary {
    background: var(--white);
    color: var(--primary-600);
    box-shadow: var(--shadow-lg);
}

.cta .btn-primary:hover {
    background: var(--gray-100);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

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

.cta .btn-secondary:hover {
    background: var(--white);
    color: var(--primary-600);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--space-16) 0 var(--space-8);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-500), transparent);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-8);
}

.footer-logo .logo-text {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--white), var(--primary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-tagline {
    color: var(--gray-400);
    margin-top: var(--space-1);
}

.footer-links {
    display: flex;
    gap: var(--space-6);
}

.footer-link {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-link:hover {
    color: var(--white);
    text-shadow: 0 0 8px rgba(14, 165, 233, 0.5);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--gray-800);
}

.footer-copyright {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

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

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

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        display: flex;
        justify-content: center;
        align-items: center;
    text-align: center;
    }
    
    .hero-title {
        font-size: var(--font-size-7xl);
    }
    
    .hero-stats {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .nav-container {
        padding: 0 var(--space-3);
        height: 65px;
        justify-content: center;
    }
    
    .nav-logo {
        display: none;
    }
    
    .nav-actions {
        gap: var(--space-1);
        width: 100%;
        justify-content: space-between;
    }
    
    .btn {
        padding: var(--space-2) var(--space-3);
        font-size: var(--font-size-xs);
    flex: 1;
        text-align: center;
        min-width: 0;
        height: 36px;
    display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .btn-outline {
        padding: var(--space-2) var(--space-3);
    }
    
    .btn-primary {
        padding: var(--space-2) var(--space-3);
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 var(--space-3);
        height: 70px;
        flex-wrap: wrap;
    }
    
    .nav-logo .logo-text {
        font-size: var(--font-size-xl);
    }
    
    .nav-actions {
        gap: var(--space-1);
        flex-wrap: wrap;
    }
    
    .btn {
        padding: var(--space-2) var(--space-3);
        font-size: var(--font-size-xs);
        white-space: nowrap;
    }
    
    .btn-outline {
        padding: var(--space-1) var(--space-2);
        font-size: var(--font-size-xs);
    }
    
    .btn-primary {
        padding: var(--space-2) var(--space-3);
        font-size: var(--font-size-xs);
    }
    
    .hero {
        padding: 100px 0 var(--space-24);
    }
    
    .hero-container {
        padding: 0 var(--space-4);
        gap: var(--space-8);
    }
    
    .hero-title {
        font-size: var(--font-size-5xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-xl);
    }
    
    .hero-description {
        font-size: var(--font-size-lg);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .features {
        padding: var(--space-24) 0;
    }
    
    .features-container {
        padding: 0 var(--space-4);
    }
    
    .features-title {
        font-size: var(--font-size-3xl);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .cta {
        padding: var(--space-24) 0;
    }
    
    .cta-container {
        padding: 0 var(--space-4);
    }
    
    .cta-title {
        font-size: var(--font-size-3xl);
    }
    
    .cta-description {
        font-size: var(--font-size-lg);
    }
    
    .cta-actions {
    flex-direction: column;
    align-items: center;
}

    .footer-content {
        flex-direction: column;
        gap: var(--space-6);
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 var(--space-2);
        height: 60px;
        justify-content: center;
    }
    
    .nav-logo {
        display: none;
    }
    
    .nav-actions {
        gap: var(--space-1);
        width: 100%;
        justify-content: space-between;
    }
    
    .nav-actions .btn {
        padding: var(--space-2) var(--space-3);
        font-size: var(--font-size-xs);
        flex: 1;
        text-align: center;
        min-width: 0;
        height: 36px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .btn-outline {
        padding: var(--space-2) var(--space-3);
    }
    
    .btn-primary {
        padding: var(--space-2) var(--space-3);
    }
    
    .hero {
        padding: 80px 0 var(--space-16);
        margin-top: 60px !important;
    }
    
    .hero-container {
        padding: 0 var(--space-3);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-description {
        font-size: var(--font-size-base);
    }
    
    .demo-messages {
        padding: var(--space-4);
    }
    
    .message-content {
        padding: var(--space-3);
    }
    
    .features {
        padding: var(--space-16) 0;
    }
    
    .features-container {
        padding: 0 var(--space-3);
    }
    
    .feature-card {
        padding: var(--space-6);
    }
    
    .cta {
        padding: var(--space-16) 0;
    }
    
    .cta-container {
        padding: 0 var(--space-3);
    }
    
    .cta-title {
        font-size: var(--font-size-2xl);
    }
    
    .cta-description {
        font-size: var(--font-size-base);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states */
.btn:focus,
.footer-link:focus {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --primary-600: #0066cc;
        --primary-700: #004499;
        --gray-800: #000000;
        --gray-600: #333333;
    }
}

/* Print styles */
@media print {
    .navbar,
    .cta,
    .footer {
        display: none;
    }
    
    .hero {
        padding: var(--space-8) 0;
    }
    
    .hero-title {
        color: var(--black);
    }
}