/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #00FFD1;
    --primary-dark: #00E5BC;
    --primary-light: #33FFD9;
    --secondary: #1A1A2E;
    --accent: #FF6B35;
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --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;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-900);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 1.875rem; }
    h3 { font-size: 1.25rem; }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary);
    color: var(--black);
    box-shadow: var(--shadow);
}

.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);
    border: 1px solid var(--gray-200);
}

.btn-secondary:hover {
    background: var(--gray-200);
    transform: translateY(-1px);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--black);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--gray-900);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius);
    object-fit: cover;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 24px;
    height: 3px;
    background: var(--gray-600);
    border-radius: 2px;
    transition: var(--transition);
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--gray-50) 0%, rgba(0, 255, 209, 0.1) 100%);
    padding-top: 80px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.1;
}

.highlight {
    color: var(--primary);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.6;
}

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

.hero-stats {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    text-align: center;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.code-window {
    background: var(--gray-900);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    width: 100%;
    max-width: 500px;
    transform: perspective(1000px) rotateY(-5deg);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: perspective(1000px) rotateY(-5deg) translateY(0px); }
    50% { transform: perspective(1000px) rotateY(-5deg) translateY(-10px); }
}

.window-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--gray-800);
    border-bottom: 1px solid var(--gray-700);
}

.window-controls {
    display: flex;
    gap: 8px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.red { background: #FF5F57; }
.control.yellow { background: #FFBD2E; }
.control.green { background: #28CA42; }

.window-title {
    color: var(--gray-400);
    font-size: 0.875rem;
    font-weight: 500;
}

.code-content {
    padding: 24px;
    background: var(--gray-900);
}

.python-code {
    color: var(--gray-100);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    white-space: pre-wrap;
}

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .code-window {
        transform: none;
    }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

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

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: 120px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

.feature-card:hover::before {
    opacity: 1;
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--black);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
}

.feature-title {
    margin-bottom: 16px;
    color: var(--gray-900);
}

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

/* Demo Section */
.demo {
    padding: 120px 0;
    background: var(--gray-50);
}

.demo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

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

.demo-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.6;
}

.demo-features {
    list-style: none;
    margin-bottom: 32px;
}

.demo-features li {
    padding: 8px 0;
    font-weight: 500;
    color: var(--gray-700);
}

.demo-video {
    position: relative;
}

.video-placeholder {
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, var(--gray-800), var(--gray-700));
    border-radius: var(--border-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    transition: var(--transition);
    overflow: hidden;
}

.video-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent 40%, rgba(0, 255, 209, 0.1) 50%, transparent 60%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.video-placeholder:hover::before {
    transform: translateX(100%);
}

.video-placeholder:hover {
    transform: scale(1.02);
}

.play-button {
    width: 80px;
    height: 80px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--black);
    transition: var(--transition);
}

.play-button svg {
    width: 32px;
    height: 32px;
    margin-left: 4px;
}

.video-duration {
    position: absolute;
    bottom: 16px;
    right: 16px;
    background: rgba(0, 0, 0, 0.8);
    color: var(--white);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 500;
}

@media (max-width: 1024px) {
    .demo-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

/* Testimonials Section */
.testimonials {
    padding: 120px 0;
    background: var(--white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.testimonial-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 4rem;
    color: var(--primary);
    font-weight: bold;
    opacity: 0.3;
}

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

.testimonial-content {
    margin-bottom: 24px;
}

.testimonial-content p {
    font-style: italic;
    color: var(--gray-700);
    line-height: 1.6;
    font-size: 1.125rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-name {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.author-title {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Pricing Section */
.pricing {
    padding: 120px 0;
    background: var(--gray-50);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--border-radius-xl);
    border: 2px solid var(--gray-200);
    padding: 40px 32px;
    position: relative;
    transition: var(--transition);
}

.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

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

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--black);
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
}

.plan-name {
    margin-bottom: 16px;
    color: var(--gray-900);
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
}

.period {
    color: var(--gray-600);
    font-size: 1rem;
}

.pricing-features {
    margin-bottom: 32px;
}

.pricing-features ul {
    list-style: none;
}

.pricing-features li {
    padding: 8px 0;
    color: var(--gray-700);
    position: relative;
    padding-left: 8px;
}

.plan-button {
    width: 100%;
    justify-content: center;
}

/* CTA Section */
.cta {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--gray-900), var(--gray-800));
    color: var(--white);
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    color: var(--white);
    margin-bottom: 24px;
}

.cta-subtitle {
    font-size: 1.25rem;
    color: var(--gray-300);
    margin-bottom: 48px;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 80px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 64px;
    margin-bottom: 48px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-description {
    color: var(--gray-400);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 32px;
}

.footer-column h4 {
    color: var(--white);
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 8px;
}

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

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--gray-700);
    flex-wrap: wrap;
    gap: 16px;
}

.social-links {
    display: flex;
    gap: 24px;
}

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

.social-link:hover {
    color: var(--primary);
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 16px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card {
        padding: 24px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        text-align: center;
        flex-direction: column;
    }
}