:root {
    --background: 0 0% 100%;
    --foreground: 240 10% 3.9%;
    --card: 0 0% 100%;
    --card-foreground: 240 10% 3.9%;
    --popover: 0 0% 100%;
    --popover-foreground: 240 10% 3.9%;
    --primary: 240 5.9% 10%;
    --primary-foreground: 0 0% 98%;
    --secondary: 240 4.8% 95.9%;
    --secondary-foreground: 240 5.9% 10%;
    --muted: 240 4.8% 95.9%;
    --muted-foreground: 240 3.8% 46.1%;
    --accent: 240 4.8% 95.9%;
    --accent-foreground: 240 5.9% 10%;
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 0 0% 98%;
    --border: 240 5.9% 90%;
    --input: 240 5.9% 90%;
    --ring: 240 5.9% 10%;
    --radius: 0.5rem;
}

.dark {
    --background: 240 10% 3.9%;
    --foreground: 0 0% 98%;
    --card: 240 10% 3.9%;
    --card-foreground: 0 0% 98%;
    --popover: 240 10% 3.9%;
    --popover-foreground: 0 0% 98%;
    --primary: 0 0% 98%;
    --primary-foreground: 240 5.9% 10%;
    --secondary: 240 3.7% 15.9%;
    --secondary-foreground: 0 0% 98%;
    --muted: 240 3.7% 15.9%;
    --muted-foreground: 240 5% 64.9%;
    --accent: 240 3.7% 15.9%;
    --accent-foreground: 0 0% 98%;
    --destructive: 0 62.8% 30.6%;
    --destructive-foreground: 0 0% 98%;
    --border: 240 3.7% 15.9%;
    --input: 240 3.7% 15.9%;
    --ring: 240 4.9% 83.9%;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border-color: hsl(var(--border));
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    background-color: hsl(var(--background));
    color: hsl(var(--foreground));
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: hsl(var(--background));
    border-bottom: 1px solid hsl(var(--border));
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    background-color: hsla(var(--background), 0.8);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: 600;
    color: hsl(var(--foreground));
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: hsl(var(--muted-foreground));
    transition: color 0.2s;
    font-size: 0.95rem;
    font-weight: 500;
}

.nav-menu a:hover {
    color: hsl(var(--foreground));
}

/* Buttons */
.btn-primary {
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground)) !important;
    padding: 0.625rem 1.25rem;
    border-radius: calc(var(--radius) - 2px);
    text-decoration: none;
    transition: all 0.2s;
    font-weight: 500;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
}

.btn-primary:hover {
    background: hsl(var(--primary) / 0.9);
    box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
}

.btn-secondary {
    background: transparent;
    color: hsl(var(--foreground)) !important;
    padding: 0.625rem 1.25rem;
    border: 1px solid hsl(var(--border));
    border-radius: calc(var(--radius) - 2px);
    text-decoration: none;
    transition: all 0.2s;
    font-weight: 500;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-secondary:hover {
    background: hsl(var(--accent));
    color: hsl(var(--accent-foreground)) !important;
}

.btn-large {
    padding: 0.875rem 2rem;
    font-size: 1rem;
    height: 2.75rem;
}

/* Hero Section */
.hero {
    background: hsl(var(--background));
    padding: 8rem 0 6rem;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: radial-gradient(ellipse 80% 50% at 50% -20%, hsl(var(--primary) / 0.15), transparent);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.75rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.1;
    background: linear-gradient(to bottom, hsl(var(--foreground)), hsl(var(--foreground) / 0.7));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: hsl(var(--muted-foreground));
    max-width: 42rem;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

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

/* Features Section */
.features {
    padding: 5rem 0;
    background: hsl(var(--background));
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.features > .container > p {
    text-align: center;
    color: hsl(var(--muted-foreground));
    margin-bottom: 3rem;
    font-size: 1.125rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: hsl(var(--card));
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid hsl(var(--border));
    transition: all 0.2s;
}

.feature-card:hover {
    border-color: hsl(var(--foreground) / 0.2);
    box-shadow: 0 4px 12px hsl(var(--foreground) / 0.05);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: hsl(var(--foreground));
}

.feature-card p {
    color: hsl(var(--muted-foreground));
    font-size: 0.95rem;
    line-height: 1.6;
}

/* How It Works */
.how-it-works {
    padding: 5rem 0;
    background: hsl(var(--muted) / 0.3);
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.how-it-works > .container > p {
    text-align: center;
    color: hsl(var(--muted-foreground));
    margin-bottom: 3rem;
    font-size: 1.125rem;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 56px;
    height: 56px;
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 auto 1.25rem;
    border: 4px solid hsl(var(--background));
    box-shadow: 0 2px 8px hsl(var(--foreground) / 0.1);
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.step p {
    color: hsl(var(--muted-foreground));
    font-size: 0.95rem;
}

/* CTA Section */
.cta-section {
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, hsl(var(--primary-foreground) / 0.05), transparent 50%);
    pointer-events: none;
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.cta-section p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-section .btn-primary {
    background: hsl(var(--primary-foreground));
    color: hsl(var(--primary)) !important;
}

.cta-section .btn-primary:hover {
    background: hsl(var(--primary-foreground) / 0.9);
}

/* Footer */
footer {
    background: hsl(var(--background));
    border-top: 1px solid hsl(var(--border));
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h4 {
    margin-bottom: 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: hsl(var(--foreground));
}

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

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: hsl(var(--muted-foreground));
    text-decoration: none;
    transition: color 0.2s;
    font-size: 0.875rem;
}

.footer-col a:hover {
    color: hsl(var(--foreground));
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid hsl(var(--border));
    color: hsl(var(--muted-foreground));
    font-size: 0.875rem;
}

/* Pricing Page */
.pricing-hero {
    background: hsl(var(--background));
    padding: 5rem 0 3rem;
    text-align: center;
    position: relative;
}

.pricing-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: radial-gradient(ellipse 80% 50% at 50% -20%, hsl(var(--primary) / 0.15), transparent);
    pointer-events: none;
}

.pricing-hero .container {
    position: relative;
    z-index: 1;
}

.pricing-hero h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.pricing-hero p {
    color: hsl(var(--muted-foreground));
    font-size: 1.125rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    padding: 4rem 0;
    align-items: start;
}

.pricing-card {
    background: hsl(var(--card));
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    transition: all 0.2s;
    position: relative;
}

.pricing-card:hover {
    border-color: hsl(var(--foreground) / 0.2);
    box-shadow: 0 8px 24px hsl(var(--foreground) / 0.08);
}

.pricing-card.featured {
    border-color: hsl(var(--primary));
    box-shadow: 0 8px 24px hsl(var(--primary) / 0.15);
    transform: scale(1.05);
}

.pricing-badge {
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    padding: 0.375rem 0.875rem;
    border-radius: calc(var(--radius) - 2px);
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: hsl(var(--foreground));
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
}

.price-period {
    color: hsl(var(--muted-foreground));
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.pricing-card > p {
    color: hsl(var(--muted-foreground));
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.pricing-features {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
}

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid hsl(var(--border));
    font-size: 0.875rem;
    color: hsl(var(--foreground));
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li:before {
    content: "✓";
    color: hsl(var(--foreground));
    font-weight: 600;
    margin-right: 0.75rem;
    opacity: 0.7;
}

/* Content Pages */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.content-section {
    padding: 4rem 0;
}

.content-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #2563eb;
}

.content-section p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.product-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.product-feature {
    background: #f9fafb;
    padding: 2rem;
    border-radius: 8px;
}

.product-feature h3 {
    color: #2563eb;
    margin-bottom: 1rem;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    padding: 4rem 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 1rem;
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .feature-grid,
    .pricing-grid,
    .product-features {
        grid-template-columns: 1fr;
    }
}


/* Content Pages */
.page-header {
    background: hsl(var(--background));
    padding: 5rem 0 3rem;
    text-align: center;
    position: relative;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: radial-gradient(ellipse 80% 50% at 50% -20%, hsl(var(--primary) / 0.15), transparent);
    pointer-events: none;
}

.page-header .container {
    position: relative;
    z-index: 1;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.page-header p {
    color: hsl(var(--muted-foreground));
    font-size: 1.125rem;
}

.content-section {
    padding: 4rem 0;
}

.content-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.content-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.content-section p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: hsl(var(--muted-foreground));
}

.content-section ul {
    color: hsl(var(--muted-foreground));
}

.product-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.product-feature {
    background: hsl(var(--card));
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid hsl(var(--border));
    transition: all 0.2s;
}

.product-feature:hover {
    border-color: hsl(var(--foreground) / 0.2);
    box-shadow: 0 4px 12px hsl(var(--foreground) / 0.05);
}

.product-feature h3 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.product-feature ul {
    list-style: none;
    margin-top: 1rem;
}

.product-feature ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.95rem;
}

.product-feature ul li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: hsl(var(--muted-foreground));
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    padding: 4rem 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    color: hsl(var(--foreground));
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid hsl(var(--border));
    border-radius: calc(var(--radius) - 2px);
    font-size: 0.95rem;
    background: hsl(var(--background));
    color: hsl(var(--foreground));
    transition: all 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: hsl(var(--ring));
    box-shadow: 0 0 0 3px hsl(var(--ring) / 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

button[type="submit"] {
    cursor: pointer;
    border: none;
}

pre {
    background: hsl(var(--muted));
    padding: 1rem;
    border-radius: var(--radius);
    overflow-x: auto;
    font-size: 0.875rem;
    border: 1px solid hsl(var(--border));
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        font-size: 0.85rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .feature-grid,
    .pricing-grid,
    .product-features {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .page-header h1 {
        font-size: 2.25rem;
    }
}