/* ================================
   CSS Variables & Reset
   ================================ */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
    --gradient-card: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Background */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    --bg-glass: rgba(255, 255, 255, 0.8);
    
    /* Text */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #ffffff;
    --text-muted: #94a3b8;
    
    /* Borders */
    --border-light: rgba(255, 255, 255, 0.1);
    --border-dark: rgba(0, 0, 0, 0.1);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 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 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ================================
   Container
   ================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ================================
   Navigation
   ================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-light);
}

.logo-icon {
    font-size: 1.5rem;
}

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

.nav-links a {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.btn-nav {
    background: var(--gradient-primary);
    color: var(--text-light) !important;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    font-weight: 600;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-light);
    transition: all var(--transition-fast);
}

/* ================================
   Hero Section
   ================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.3) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.3) 0%, transparent 40%),
        radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.2) 0%, transparent 40%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    padding: var(--space-3xl) 0;
}

.hero-text {
    color: var(--text-light);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-light);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.6s ease;
}

.badge-icon {
    font-size: 1rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.6s ease 0.1s backwards;
}

.gradient-text {
    background: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 50%, #f472b6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-xl);
    max-width: 500px;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 0.6s ease 0.3s backwards;
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Hero Image */
.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    animation: fadeInRight 0.8s ease 0.3s backwards;
}

.phone-mockup {
    position: relative;
    width: 280px;
    height: 580px;
    background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 
        0 50px 100px rgba(0, 0, 0, 0.4),
        inset 0 0 0 2px rgba(255, 255, 255, 0.1);
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 28px;
    background: #000;
    border-radius: 20px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    border-radius: 28px;
    overflow: hidden;
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Floating Cards */
.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    animation: float 3s ease-in-out infinite;
}

.card-icon {
    font-size: 1.25rem;
}

.card-1 {
    top: 10%;
    left: -10%;
    animation-delay: 0s;
}

.card-2 {
    top: 45%;
    right: -15%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 15%;
    left: -5%;
    animation-delay: 2s;
}

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

/* Hero Wave */
.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1;
}

.hero-wave svg {
    display: block;
    width: 100%;
    height: 80px;
}

/* ================================
   Buttons
   ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
}

.btn-icon {
    width: 22px;
    height: 22px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border: 1px solid var(--border-light);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-outline {
    background: transparent;
    color: var(--text-light);
    border: 2px solid var(--border-light);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
}

.btn-large .btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

.btn-small {
    font-size: 0.7rem;
    opacity: 0.8;
    font-weight: 400;
}

.btn-main {
    font-size: 1.1rem;
}

/* ================================
   Section Styling
   ================================ */
section {
    padding: var(--space-3xl) 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-3xl);
}

.section-badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    color: var(--primary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.section-header h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* ================================
   Features Section
   ================================ */
.features {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    position: relative;
    background: var(--bg-primary);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all var(--transition-base);
}

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

.feature-card.featured {
    background: var(--gradient-hero);
    color: var(--text-light);
}

.feature-card.featured .feature-list li {
    color: rgba(255, 255, 255, 0.8);
}

.feature-card.featured .feature-list li::before {
    color: var(--accent);
}

.feature-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: var(--gradient-primary);
    color: var(--text-light);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    font-size: 1.75rem;
}

.feature-card.featured .feature-icon {
    background: rgba(255, 255, 255, 0.1);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    font-size: 0.95rem;
}

.feature-card.featured p {
    color: rgba(255, 255, 255, 0.8);
}

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

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.feature-list li::before {
    content: '✓';
    color: var(--primary);
    font-weight: 700;
}

/* ================================
   Screenshots Carousel
   ================================ */
.screenshots {
    background: var(--bg-primary);
    overflow: hidden;
}

.carousel-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.carousel-container {
    overflow: hidden;
    flex: 1;
    border-radius: var(--radius-xl);
}

.carousel-track {
    display: flex;
    gap: var(--space-lg);
    transition: transform var(--transition-slow);
}

.carousel-slide {
    flex: 0 0 280px;
    text-align: center;
}

.carousel-slide img {
    width: 100%;
    height: auto;
    max-height: 600px;
    object-fit: contain;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 4px solid rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-base);
}

.carousel-slide:hover img {
    transform: scale(1.02);
}

.slide-caption {
    margin-top: var(--space-md);
    font-weight: 600;
    color: var(--text-secondary);
}

.carousel-btn {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.carousel-btn:hover {
    background: var(--primary);
    color: var(--text-light);
    border-color: var(--primary);
}

.carousel-btn svg {
    width: 24px;
    height: 24px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background: var(--text-muted);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.carousel-dot.active {
    width: 30px;
    background: var(--gradient-primary);
}

/* ================================
   Benefits Section
   ================================ */
.benefits {
    background: var(--bg-secondary);
}

.benefits-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.benefits-text .section-badge {
    display: inline-block;
    margin-bottom: var(--space-md);
}

.benefits-text h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: var(--space-xl);
}

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

.benefit-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.benefit-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
}

.benefit-content h4 {
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.benefit-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.benefits-visual {
    display: flex;
    justify-content: center;
}

.benefits-phone .phone-mockup {
    transform: rotate(-5deg);
}

.benefits-phone .phone-screen.dark-theme {
    background: #1a1a2e;
}

/* ================================
   CTA Section
   ================================ */
.cta {
    background: var(--gradient-hero);
    padding: var(--space-3xl) 0;
}

.cta-content {
    text-align: center;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

.cta h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: var(--space-md);
}

.cta p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.125rem;
    margin-bottom: var(--space-2xl);
}

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

/* ================================
   Footer
   ================================ */
.footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-3xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid var(--border-light);
}

.footer-brand .logo {
    margin-bottom: var(--space-md);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    max-width: 300px;
}

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

.footer-column h4 {
    font-weight: 700;
    margin-bottom: var(--space-md);
}

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

.footer-column a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--space-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
}

/* ================================
   Animations
   ================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ================================
   Responsive Design
   ================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-description {
        margin: 0 auto var(--space-xl);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-image {
        margin-top: var(--space-2xl);
    }
    
    .floating-card {
        display: none;
    }
    
    .benefits-content {
        grid-template-columns: 1fr;
    }
    
    .benefits-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        flex-direction: column;
        padding: var(--space-xl);
        gap: var(--space-lg);
        transform: translateY(-150%);
        opacity: 0;
        transition: all var(--transition-base);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .carousel-slide {
        flex: 0 0 250px;
    }
    
    .carousel-slide img {
        height: 450px;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand p {
        margin: var(--space-md) auto;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: var(--space-lg);
    }
    
    .phone-mockup {
        width: 240px;
        height: 500px;
    }
    
    .carousel-slide {
        flex: 0 0 220px;
    }
    
    .carousel-slide img {
        height: 400px;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
    }
}