:root {
    --primary-600: #3b82f6;
    --primary-700: #2563eb;
    --primary-800: #1e40af;
    --secondary-50: #f8fafc;
    --secondary-100: #f1f5f9;
    --secondary-200: #e2e8f0;
    --secondary-300: #cbd5e1;
    --secondary-500: #64748b;
    --secondary-700: #334155;
    --secondary-800: #1e293b;
    --secondary-900: #0f172a;
    --success-500: #10b981;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 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);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    color: var(--secondary-800);
    line-height: 1.6;
    background-color: #ffffff;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--secondary-200);
    padding: 0.5rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-900);
    text-decoration: none;
}

.navbar .logo-icon {
    width: 144px;
    height: 144px;
    display: block;
}

.footer .logo-icon {
    width: 120px;
    height: 120px;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--secondary-700);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary-600);
}

.github-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    background: var(--secondary-100);
    color: var(--secondary-900) !important;
    transition: all 0.2s;
}

.github-link:hover {
    background: var(--secondary-200);
    color: var(--secondary-900) !important;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--primary-700);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--secondary-200);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: var(--secondary-100);
    padding: 0.5rem 1.25rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-600);
    margin-bottom: 2rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--secondary-900);
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--secondary-600);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.hero-stats {
    display: flex;
    gap: 4rem;
    justify-content: center;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-600);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--secondary-500);
    margin-top: 0.5rem;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.gradient-blur {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
}

.gradient-blur-1 {
    width: 600px;
    height: 600px;
    background: var(--gradient-1);
    top: -300px;
    right: -200px;
}

.gradient-blur-2 {
    width: 500px;
    height: 500px;
    background: var(--gradient-2);
    bottom: -250px;
    left: -150px;
}

/* Section */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--secondary-900);
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--secondary-600);
}

/* Features */
.features {
    background: var(--secondary-50);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    border: 1px solid var(--secondary-200);
}

.feature-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
    border-color: var(--primary-600);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-600);
    color: white;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    stroke-width: 2;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary-900);
    margin-bottom: 0.75rem;
}

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

/* How It Works */
.how-it-works {
    background: white;
}

.workflow-steps {
    max-width: 800px;
    margin: 0 auto;
}

.workflow-step {
    display: flex;
    gap: 2rem;
    padding: 2rem 0;
    position: relative;
}

.workflow-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 28px;
    top: 80px;
    bottom: -40px;
    width: 2px;
    background: var(--secondary-200);
}

.step-number {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    background: var(--gradient-1);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    z-index: 1;
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-900);
    margin-bottom: 0.75rem;
}

.step-description {
    color: var(--secondary-600);
    line-height: 1.6;
}

/* Benefits */
.benefits {
    background: var(--secondary-50);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

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

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary-900);
    margin-bottom: 0.75rem;
}

.benefit-card p {
    color: var(--secondary-600);
}

/* Tech Stack */
.tech-stack {
    background: white;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.tech-item {
    background: var(--secondary-50);
    padding: 1.5rem;
    border-radius: 0.75rem;
    text-align: center;
    border: 2px solid var(--secondary-200);
    transition: all 0.3s;
}

.tech-item:hover {
    border-color: var(--primary-600);
    transform: translateY(-2px);
}

.tech-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--secondary-900);
    margin-bottom: 0.25rem;
}

.tech-category {
    font-size: 0.875rem;
    color: var(--secondary-500);
}

/* CTA */
.cta {
    background: var(--gradient-1);
    color: white;
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2.5rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

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

.cta .btn-primary:hover {
    background: var(--secondary-100);
}

.cta .btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
}

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

/* Footer */
.footer {
    background: var(--secondary-900);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-description {
    color: var(--secondary-400);
    max-width: 300px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.footer-column a {
    display: block;
    color: var(--secondary-400);
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: color 0.2s;
}

.footer-column a:hover {
    color: var(--primary-600);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--secondary-800);
    text-align: center;
    color: var(--secondary-500);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-description {
        font-size: 1.125rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-stats {
        gap: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .workflow-step {
        flex-direction: column;
        gap: 1rem;
    }

    .workflow-step::after {
        left: 28px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .cta-title {
        font-size: 2rem;
    }
}

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

.hero-content > * {
    animation: fadeIn 0.8s ease-out backwards;
}

.hero-badge {
    animation-delay: 0.1s;
}

.hero-title {
    animation-delay: 0.2s;
}

.hero-description {
    animation-delay: 0.3s;
}

.hero-buttons {
    animation-delay: 0.4s;
}

.hero-stats {
    animation-delay: 0.5s;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}