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

:root {
    --background: 0 0% 100%;
    --foreground: 222.2 84% 4.9%;
    --card: 0 0% 100%;
    --card-foreground: 222.2 84% 4.9%;
    --primary: 221.2 83.2% 53.3%;
    --primary-foreground: 210 40% 98%;
    --muted: 210 40% 96.1%;
    --muted-foreground: 215.4 16.3% 46.9%;
    --border: 214.3 31.8% 91.4%;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
header {
    border-bottom: 1px solid hsl(var(--border));
    background: hsl(var(--card));
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    gap: 2rem;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    color: hsl(var(--primary));
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
    color: hsl(var(--foreground));
}

.nav-menu {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

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

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

.header-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn {
    padding: 0.5rem 1.5rem;
    border-radius: 0.375rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
}

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

.btn-primary:hover {
    opacity: 0.9;
}

.btn-outline {
    border: 1px solid hsl(var(--border));
    background: transparent;
    color: hsl(var(--foreground));
}

.btn-outline:hover {
    background: hsl(var(--muted));
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1rem;
}

/* Hero Section */
.hero-section {
    padding: 5rem 0 8rem;
}

.hero-content {
    max-width: 56rem;
    margin: 0 auto;
    text-align: center;
}

.hero-content > * + * {
    margin-top: 2rem;
}

.hero-title {
    font-size: 2.25rem;
    font-weight: 700;
    background: linear-gradient(to right, hsl(var(--primary)), hsl(221.2 83.2% 63.3%));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.25rem;
    color: hsl(var(--muted-foreground));
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

/* Features Section */
.features-section {
    padding: 5rem 0;
    background: hsl(var(--muted) / 0.5);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.125rem;
    color: hsl(var(--muted-foreground));
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 72rem;
    margin: 0 auto;
}

.feature-card {
    background: hsl(var(--card));
    border: 1px solid hsl(var(--border));
    border-radius: 0.5rem;
    padding: 1.5rem;
    transition: all 0.2s;
}

.feature-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.feature-icon-wrapper {
    width: 3rem;
    height: 3rem;
    border-radius: 0.5rem;
    background: hsl(var(--primary) / 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.feature-icon {
    color: hsl(var(--primary));
    font-size: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature-description {
    color: hsl(var(--muted-foreground));
    font-size: 0.875rem;
}

/* CTA Section */
.cta-section {
    padding: 5rem 0;
    text-align: center;
}

.cta-content {
    max-width: 48rem;
    margin: 0 auto;
}

.cta-content > * + * {
    margin-top: 2rem;
}

.cta-title {
    font-size: 1.875rem;
    font-weight: 700;
}

.cta-description {
    font-size: 1.125rem;
    color: hsl(var(--muted-foreground));
}

/* Footer */
footer {
    border-top: 1px solid hsl(var(--border));
    padding: 3rem 0 2rem;
    margin-top: 5rem;
    background: hsl(var(--muted) / 0.3);
}

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

.footer-section h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-section p {
    color: hsl(var(--muted-foreground));
    font-size: 0.875rem;
}

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

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

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

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

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

/* Page Content */
.page-content {
    padding: 3rem 0;
    max-width: 800px;
    margin: 0 auto;
}

.page-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.page-content h2 {
    font-size: 2rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.page-content p {
    margin-bottom: 1rem;
    color: hsl(var(--muted-foreground));
}

/* Form Styles */
.form-container {
    max-width: 400px;
    margin: 5rem auto;
    padding: 2rem;
    background: hsl(var(--card));
    border: 1px solid hsl(var(--border));
    border-radius: 0.5rem;
}

.form-container h1 {
    text-align: center;
    margin-bottom: 2rem;
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid hsl(var(--border));
    border-radius: 0.375rem;
    font-size: 1rem;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* Pricing Cards */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 3rem auto;
}

.pricing-card {
    background: hsl(var(--card));
    border: 2px solid hsl(var(--border));
    border-radius: 0.5rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
}

.pricing-card:hover {
    border-color: hsl(var(--primary));
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
    border-color: hsl(var(--primary));
    position: relative;
}

.pricing-card.featured::before {
    content: 'POPULAR';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: hsl(var(--primary));
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.pricing-price {
    font-size: 3rem;
    font-weight: 700;
    color: hsl(var(--primary));
    margin-bottom: 0.5rem;
}

.pricing-period {
    color: hsl(var(--muted-foreground));
    margin-bottom: 2rem;
}

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

.pricing-features li {
    padding: 0.5rem 0;
    border-bottom: 1px solid hsl(var(--border));
}

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

/* Responsive */
@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.75rem;
    }
    
    .hero-description {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 2.25rem;
    }
    
    .cta-title {
        font-size: 2.25rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .header-buttons {
        gap: 0.5rem;
    }
    
    .btn {
        padding: 0.4rem 1rem;
        font-size: 0.8rem;
    }
    
    .logo-text {
        font-size: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
}