/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color System */
    --primary-navy: #1a2332;
    --primary-mint: #4ade80;
    --accent-light: #e8f9f0;
    --neutral-white: #ffffff;
    --neutral-light: #f8fafc;
    --neutral-medium: #64748b;
    --neutral-dark: #334155;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Typography */
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    
    /* Spacing System (8px base) */
    --space-1: 0.5rem;  /* 8px */
    --space-2: 1rem;    /* 16px */
    --space-3: 1.5rem;  /* 24px */
    --space-4: 2rem;    /* 32px */
    --space-6: 3rem;    /* 48px */
    --space-8: 4rem;    /* 64px */
    --space-12: 6rem;   /* 96px */
    --space-16: 8rem;   /* 128px */
    
    /* Layout */
    --max-width: 1200px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

/* Import Inter font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--neutral-dark);
    background: var(--neutral-white);
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-3);
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-mono);
    font-weight: 600;
    line-height: 1.2;
    color: var(--primary-navy);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--space-6);
    text-align: center;
}

/* Section Center Alignment */
.section-center {
    text-align: center;
    margin-bottom: var(--space-6);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--primary-mint);
    color: var(--primary-navy);
    border-color: var(--primary-mint);
}

.btn-primary:hover {
    background: transparent;
    color: var(--primary-mint);
    border-color: var(--primary-mint);
    box-shadow: 0 0 20px rgba(74, 222, 128, 0.3);
}

/* Header */
.header {
    background: var(--neutral-white);
    padding: var(--space-3) 0;
    border-bottom: 1px solid #e2e8f0;
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-navy);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-navy) 0%, #283544 100%);
    color: var(--neutral-white);
    padding: var(--space-8) 0 var(--space-12);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(74, 222, 128, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(74, 222, 128, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-8);
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    color: var(--neutral-white);
    margin-bottom: var(--space-3);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #cbd5e1;
    margin-bottom: var(--space-6);
    line-height: 1.5;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    align-items: flex-start;
}

.cta-note {
    font-size: 0.9rem;
    color: #94a3b8;
    font-style: italic;
}

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

.hero-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Placeholder Images */
.placeholder-image {
    background: linear-gradient(45deg, #f1f5f9, #e2e8f0);
    border: 2px dashed var(--neutral-medium);
    border-radius: var(--border-radius-lg);
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-medium);
    font-style: italic;
    text-align: center;
    padding: var(--space-4);
}

/* Feature Images */
.feature-image,
.trust-image,
.contact-image {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

/* Services Section */
.services {
    padding: var(--space-12) 0;
    background: var(--neutral-light);
}

.services .section-center {
    text-align: center;
    margin-bottom: var(--space-6);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

.service-card {
    background: var(--neutral-white);
    padding: var(--space-6);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
}

.service-icon {
    background: var(--accent-light);
    width: 64px;
    height: 64px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-3);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-2);
}

.service-card p {
    color: var(--neutral-medium);
    line-height: 1.5;
}

/* How It Works */
.how-it-works {
    padding: var(--space-12) 0;
    background: var(--neutral-white);
}

.how-it-works .section-center {
    text-align: center;
    margin-bottom: var(--space-6);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-8);
}

.step {
    text-align: center;
}

.step-number {
    background: var(--primary-mint);
    color: var(--primary-navy);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--space-3);
}

.step h3 {
    margin-bottom: var(--space-2);
}

.step p {
    color: var(--neutral-medium);
}

/* Features Section */
.features {
    padding: var(--space-12) 0;
    background: var(--accent-light);
}

.features .section-center {
    text-align: center;
    margin-bottom: var(--space-6);
}

.features-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.feature-item {
    display: flex;
    gap: var(--space-3);
    align-items: flex-start;
}

.feature-icon {
    background: var(--neutral-white);
    padding: var(--space-2);
    border-radius: var(--border-radius);
    flex-shrink: 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.feature-item h3 {
    margin-bottom: var(--space-1);
    font-size: 1.125rem;
}

.feature-item p {
    color: var(--neutral-medium);
}

/* Products Section */
.products {
    padding: var(--space-12) 0;
    background: var(--neutral-white);
}

.products .section-center {
    text-align: center;
    margin-bottom: var(--space-6);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-6);
}

.product-card {
    background: var(--neutral-white);
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius-lg);
    padding: var(--space-6);
    text-align: center;
    position: relative;
}

.product-card.featured {
    border-color: var(--primary-mint);
    box-shadow: 0 8px 25px rgba(74, 222, 128, 0.2);
}

.product-badge {
    background: var(--primary-mint);
    color: var(--primary-navy);
    padding: var(--space-1) var(--space-3);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
}

.product-card h3 {
    margin-bottom: var(--space-3);
    font-size: 1.5rem;
}

.product-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: var(--space-4);
}

.product-price span {
    font-size: 1rem;
    color: var(--neutral-medium);
}

.product-features {
    list-style: none;
    margin-bottom: var(--space-6);
}

.product-features li {
    padding: var(--space-1) 0;
    border-bottom: 1px solid #f1f5f9;
    color: var(--neutral-medium);
}

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

/* Why Choose Us */
.why-choose {
    padding: var(--space-12) 0;
    background: var(--neutral-light);
}

.why-choose .section-center {
    text-align: center;
    margin-bottom: var(--space-6);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

.benefit-card {
    background: var(--neutral-white);
    padding: var(--space-6);
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid #e2e8f0;
}

.benefit-card h3 {
    margin-bottom: var(--space-3);
    color: var(--primary-navy);
}

.benefit-card p {
    color: var(--neutral-medium);
}

/* Trust & Security */
.trust-security {
    padding: var(--space-12) 0;
    background: var(--neutral-white);
}

.trust-security .section-center {
    text-align: center;
    margin-bottom: var(--space-6);
}

.trust-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
}

.trust-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-mint);
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--neutral-medium);
}

/* Testimonials */
.testimonials {
    padding: var(--space-12) 0;
    background: var(--accent-light);
}

.testimonials .section-center {
    text-align: center;
    margin-bottom: var(--space-6);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.testimonial-card {
    background: var(--neutral-white);
    padding: var(--space-6);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: var(--space-4);
    color: var(--neutral-dark);
}

.testimonial-author strong {
    display: block;
    color: var(--primary-navy);
    margin-bottom: var(--space-1);
}

.testimonial-author span {
    color: var(--neutral-medium);
    font-size: 0.875rem;
}

/* Contact Section */
.contact {
    padding: var(--space-12) 0;
    background: var(--neutral-white);
}

.contact .section-title {
    text-align: center;
    margin-bottom: var(--space-6);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.contact-item {
    display: flex;
    gap: var(--space-3);
    align-items: flex-start;
}

.contact-icon {
    background: var(--accent-light);
    padding: var(--space-2);
    border-radius: var(--border-radius);
    flex-shrink: 0;
}

.contact-item h3 {
    margin-bottom: var(--space-1);
    font-size: 1.125rem;
}

.contact-item a {
    color: var(--primary-mint);
    text-decoration: none;
    font-weight: 600;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-item p {
    color: var(--neutral-medium);
    margin-top: var(--space-1);
}

/* Footer */
.footer {
    background: var(--primary-navy);
    color: var(--neutral-white);
    padding: var(--space-8) 0 var(--space-4);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-8);
    margin-bottom: var(--space-6);
}

.footer-brand {
    max-width: 350px;
}

.footer-brand-name {
    color: var(--neutral-white);
    font-size: 1.125rem;
    font-weight: 600;
    margin-left: var(--space-2);
}

.footer-brand p {
    color: #cbd5e1;
    margin-top: var(--space-3);
    line-height: 1.5;
}

.footer-links {
    display: flex;
    justify-content: space-between;
    gap: var(--space-6);
}

.footer-nav {
    display: flex;
    gap: var(--space-8);
}

.footer-legal {
    min-width: 150px;
}

.footer-column h4 {
    color: var(--primary-mint);
    margin-bottom: var(--space-3);
    font-family: var(--font-sans);
    font-size: 1rem;
}

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

.footer-column li {
    margin-bottom: var(--space-1);
}

.footer-column a {
    color: #cbd5e1;
    text-decoration: none;
}

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

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: var(--space-4);
    text-align: center;
    color: #94a3b8;
}

.footer-bottom p {
    margin-bottom: var(--space-1);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --space-12: 4rem;
    }
    
    .container {
        padding: 0 var(--space-2);
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: var(--space-4);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-6);
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-image {
        max-width: 400px;
    }
    
    .features-content,
    .trust-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .footer-nav {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .trust-stats {
        grid-template-columns: 1fr;
    }
    
    .services-grid,
    .benefits-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.875rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .product-price {
        font-size: 2.5rem;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-image {
        max-width: 300px;
    }
}