:root {
    --primary-color: #07120c;
    --primary-hover: #0a1a0f;
    --text-primary: #000000;
    --text-secondary: #666666;
    --text-light: #999999;
    --background-white: #ffffff;
    --background-light: #f8f9fa;
    --background-green: #f0f8f4;
    --border-light: #e5e7eb;
    --border-medium: #d1d5db;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    --container-max-width: 1200px;
    --section-padding: 80px 0;
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;
    
    --transition: all 0.2s ease;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 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);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
}

.nav {
    padding: 16px 0;
}

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

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

.brand-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

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

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.btn-full {
    width: 100%;
}

.main {
    margin-top: 80px;
}

.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--background-white) 0%, var(--background-light) 100%);
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-title {
    font-size: 88px;
    font-weight: 400;
    line-height: 88px;
    color: var(--text-primary);
    margin-bottom: 24px;
    font-family: var(--font-display);
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    line-height: 1.7;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-top: 48px;
}

.comparison-column {
    padding: 32px;
    background: var(--background-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.comparison-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.comparison-list {
    list-style: none;
}

.comparison-list li {
    padding: 8px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
}

.comparison-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

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

.dashboard-mockup {
    background: var(--background-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    width: 100%;
    max-width: 500px;
}

.mockup-header {
    background: var(--background-light);
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-light);
}

.mockup-tabs {
    display: flex;
    gap: 24px;
}

.tab {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    cursor: pointer;
}

.tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.mockup-content {
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.metric-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: var(--background-green);
    border-radius: var(--border-radius);
}

.metric-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.metric-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.solution-section {
    padding: var(--section-padding);
    background: var(--background-green);
}

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

.section-label {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
}

.section-title {
    font-size: 48px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--text-primary);
    font-family: var(--font-display);
}

.features-section {
    padding: var(--section-padding);
}

.features-grid {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.feature-item {
    display: grid;
    grid-template-columns: auto 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.feature-number {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-light);
    padding-top: 8px;
}

.feature-title {
    font-size: 32px;
    font-weight: 400;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: 24px;
}

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

.feature-mockup {
    width: 100%;
    max-width: 400px;
}

.code-editor {
    background: #1a1a1a;
    border-radius: var(--border-radius);
    overflow: hidden;
    font-family: 'Monaco', 'Menlo', monospace;
}

.editor-header {
    background: #2a2a2a;
    padding: 12px 16px;
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
}

.editor-content {
    padding: 20px;
    color: #e5e5e5;
    font-size: 14px;
    line-height: 1.6;
}

.code-line {
    margin-bottom: 4px;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.social-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: var(--background-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.social-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-icon.facebook { background: #1877f2; }
.social-icon.linkedin { background: #0a66c2; }
.social-icon.twitter { background: #1da1f2; }
.social-icon.instagram { background: #e4405f; }

.analytics-dashboard {
    background: var(--background-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.chart-container {
    padding: 24px;
}

.chart-header {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.chart-placeholder {
    height: 200px;
    background: linear-gradient(135deg, var(--background-green) 0%, var(--background-light) 100%);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 14px;
}

.pricing-preview {
    padding: var(--section-padding);
    background: var(--background-light);
    text-align: center;
}

.pricing-content {
    max-width: 600px;
    margin: 0 auto;
}

.pricing-title {
    font-size: 48px;
    font-weight: 400;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.pricing-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

.pricing-range {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.price-from,
.price-to {
    font-size: 64px;
    font-weight: 700;
    color: var(--primary-color);
}

.price-to::before {
    content: '–';
    margin-right: 16px;
    color: var(--text-light);
}

.price-label {
    font-size: 18px;
    color: var(--text-secondary);
    margin-left: 16px;
}

.pricing-note {
    color: var(--text-light);
    margin-bottom: 32px;
}

.contact-section {
    padding: var(--section-padding);
    background: var(--background-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-title {
    font-size: 48px;
    font-weight: 400;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.contact-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-benefits {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.benefit-icon {
    width: 24px;
    height: 24px;
    background: var(--success-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.contact-form-container {
    background: var(--background-light);
    padding: 48px;
    border-radius: var(--border-radius-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--border-medium);
    border-radius: var(--border-radius-sm);
    font-size: 16px;
    font-family: var(--font-primary);
    transition: var(--transition);
    background: var(--background-white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(7, 18, 12, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-success {
    text-align: center;
    padding: 48px;
}

.success-icon {
    width: 64px;
    height: 64px;
    background: var(--success-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto 24px;
}

.form-success h3 {
    font-size: 24px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.form-success p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer {
    background: var(--background-light);
    padding: 80px 0 32px;
    border-top: 1px solid var(--border-light);
}

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

.footer-brand .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: 48px;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

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

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

.footer-contact h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.contact-details {
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-details a {
    color: var(--primary-color);
    text-decoration: none;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--border-light);
    color: var(--text-light);
}

.pricing-hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--background-white) 0%, var(--background-light) 100%);
    text-align: center;
}

.pricing-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.pricing-hero-title {
    font-size: 64px;
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.pricing-hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.pricing-tiers {
    padding: var(--section-padding);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--background-white);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: 48px 32px;
    position: relative;
    transition: var(--transition);
}

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

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

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

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

.pricing-plan {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.pricing-price {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.price-amount {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
}

.price-unit {
    font-size: 14px;
    color: var(--text-secondary);
}

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

.pricing-features h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.pricing-features ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}

.pricing-features li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: bold;
}

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

.pricing-channels h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.channel-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.channel {
    background: var(--background-green);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-factors {
    padding: var(--section-padding);
    background: var(--background-light);
}

.factors-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
    margin-top: 48px;
}

.factor-item {
    text-align: center;
}

.factor-icon {
    font-size: 48px;
    margin-bottom: 24px;
}

.factor-item h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.factor-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.pricing-faq {
    padding: var(--section-padding);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
    margin-top: 48px;
}

.faq-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.pricing-cta {
    padding: var(--section-padding);
    background: var(--background-green);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 48px;
    font-weight: 400;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.cta-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.legal-hero {
    padding: 120px 0 80px;
    background: var(--background-light);
    text-align: center;
}

.legal-title {
    font-size: 64px;
    font-weight: 400;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.legal-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.legal-content {
    padding: var(--section-padding);
}

.legal-text {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.legal-text h2 {
    font-size: 32px;
    font-weight: 600;
    margin: 48px 0 24px;
    color: var(--text-primary);
}

.legal-text h2:first-child {
    margin-top: 0;
}

.legal-text h3 {
    font-size: 24px;
    font-weight: 600;
    margin: 32px 0 16px;
    color: var(--text-primary);
}

.legal-text p {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.legal-text ul {
    margin: 16px 0 16px 24px;
    color: var(--text-secondary);
}

.legal-text li {
    margin-bottom: 8px;
}

.contact-info {
    background: var(--background-light);
    padding: 24px;
    border-radius: var(--border-radius);
    margin: 24px 0;
}

.contact-info p {
    margin-bottom: 0;
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
}

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

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 64px;
        line-height: 1.1;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .feature-item {
        grid-template-columns: 1fr;
        gap: 24px;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .factors-grid,
    .faq-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 16px;
    }
    
    .nav-links {
        display: none;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding: 80px 0 60px;
    }
    
    .hero-title {
        font-size: 48px;
        line-height: 1.1;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .pricing-hero-title {
        font-size: 48px;
    }
    
    .legal-title {
        font-size: 48px;
    }
    
    .contact-form-container {
        padding: 32px 24px;
    }
    
    .pricing-range {
        flex-direction: column;
        gap: 8px;
    }
    
    .price-from,
    .price-to {
        font-size: 48px;
    }
    
    .price-to::before {
        display: none;
    }
    
    .price-label {
        margin-left: 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
        line-height: 1.2;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .contact-title,
    .pricing-title,
    .cta-content h2 {
        font-size: 32px;
    }
    
    .pricing-hero-title,
    .legal-title {
        font-size: 36px;
    }
    
    .feature-title {
        font-size: 24px;
    }
    
    .price-from,
    .price-to {
        font-size: 36px;
    }
}