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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #10b981;
    --dark: #0f172a;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --max-width: 1280px;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--gray-900);
    line-height: 1.6;
    background: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 16px;
}

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

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

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-900);
}

.btn-secondary:hover {
    background: var(--gray-200);
    transform: translateY(-2px);
}

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

.btn-white:hover {
    background: var(--gray-50);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 18px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-icon {
    font-size: 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 16px 0;
    box-shadow: var(--shadow-sm);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    color: var(--gray-900);
}

.logo-icon {
    font-size: 32px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-900);
    transition: all 0.3s ease;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 20px;
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.mobile-menu a {
    display: block;
    padding: 12px;
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
}

.mobile-menu a:hover {
    background: var(--gray-50);
    color: var(--primary-color);
}

.mobile-menu.active {
    display: block;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-number {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-color);
}

.stat-label {
    font-size: 14px;
    color: var(--gray-600);
    font-weight: 500;
}

.hero-visual {
    position: relative;
}

.phone-mockup {
    width: 320px;
    height: 640px;
    background: var(--gray-900);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl);
    margin: 0 auto;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--white);
    border-radius: 28px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.demo-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.floating-qr {
    position: absolute;
    top: 20px;
    right: -40px;
    animation: float 6s ease-in-out infinite;
}

.floating-badge {
    position: absolute;
    top: 100px;
    left: -60px;
    background: var(--white);
    padding: 12px 20px;
    border-radius: 100px;
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    animation: float 6s ease-in-out infinite;
    animation-delay: 1s;
}

.floating-badge-2 {
    position: absolute;
    bottom: 100px;
    right: -80px;
    background: var(--white);
    padding: 12px 20px;
    border-radius: 100px;
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    animation: float 6s ease-in-out infinite;
    animation-delay: 2s;
}

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

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 48px;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 20px;
    color: var(--gray-600);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 32px;
    background: var(--gray-50);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: var(--white);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 24px;
    margin-bottom: 12px;
}

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

/* How It Works Section */
.how-it-works {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

.steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
}

.step {
    flex: 1;
    text-align: center;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 800;
    margin: 0 auto 24px;
}

.step-title {
    font-size: 24px;
    margin-bottom: 12px;
}

.step-description {
    color: var(--gray-600);
}

.step-connector {
    width: 100px;
    height: 2px;
    background: var(--gray-300);
    margin: 0 20px;
    margin-bottom: 60px;
}

/* Use Cases Section */
.use-cases {
    padding: 80px 0;
    background: var(--white);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.use-case-card {
    padding: 32px;
    text-align: center;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.use-case-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.use-case-emoji {
    font-size: 64px;
    margin-bottom: 20px;
}

.use-case-title {
    font-size: 20px;
    margin-bottom: 12px;
}

.use-case-description {
    color: var(--gray-600);
    font-size: 14px;
}

/* Demo Section */
.demo {
    padding: 80px 0;
    background: var(--gray-50);
}

.demo-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    align-items: stretch;
}

.demo-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 32px;
    text-align: center;
    text-decoration: none;
    color: var(--gray-900);
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 280px;
}

.demo-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.demo-image {
    font-size: 64px;
    margin-bottom: 20px;
}

.demo-title {
    font-size: 24px;
    margin-bottom: 8px;
}

.demo-category {
    color: var(--gray-600);
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 48px;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 20px;
    margin-bottom: 32px;
    opacity: 0.9;
}

.cta-note {
    margin-top: 16px;
    font-size: 14px;
    opacity: 0.8;
}

/* Footer */
.footer {
    padding: 64px 0 32px;
    background: var(--gray-900);
    color: var(--white);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 64px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-tagline {
    color: var(--gray-400);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-heading {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    color: var(--gray-400);
}

.footer-column a {
    display: block;
    color: var(--gray-300);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--gray-800);
}

.copyright {
    color: var(--gray-400);
    font-size: 14px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    font-size: 20px;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .features-grid,
    .use-cases-grid,
    .demo-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        margin-top: 40px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .features-grid,
    .use-cases-grid,
    .demo-cards {
        grid-template-columns: 1fr;
    }
    
    .steps {
        flex-direction: column;
    }
    
    .step-connector {
        width: 2px;
        height: 60px;
        margin: 20px auto;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .floating-badge,
    .floating-badge-2,
    .floating-qr {
        display: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }
    
    .phone-mockup {
        width: 240px;
        height: 480px;
    }
}