:root {
    --color-background: #FAF8F5;
    --color-background-alt: #F5F2ED;
    --color-text-primary: #1A202C;
    --color-text-secondary: #4A5568;
    --color-text-muted: #718096;
    --color-accent: #1E4D6B;
    --color-accent-hover: #163A52;
    --color-border: #E2DED8;
    --color-border-light: #EDE9E3;
    --color-border-subtle: rgba(45, 55, 72, 0.08);
    --color-white: #FFFFFF;
    
    --font-serif: 'Cormorant Garamond', 'Georgia', 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    --spacing-2xs: 0.25rem;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 5rem;
    
    --max-width-content: 1140px;
    --max-width-narrow: 720px;
    --max-width-prose: 65ch;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-primary);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.15;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2.75rem;
    font-weight: 400;
}

h2 {
    font-size: 2.125rem;
    font-weight: 400;
}

h3 {
    font-size: 1.625rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1.125rem;
    color: var(--color-text-secondary);
    max-width: var(--max-width-prose);
}

.lead {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-accent-hover);
}

.container {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-narrow {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.brand-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border-light);
    padding: var(--spacing-sm) 0;
}

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

.brand-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.brand-logo:hover {
    color: var(--color-text-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-links a {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-white) !important;
    background-color: var(--color-accent);
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.nav-cta:hover {
    background-color: var(--color-accent-hover);
    color: var(--color-white) !important;
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section-alt {
    background-color: var(--color-background-alt);
}

.section-divider {
    width: 100%;
    height: 1px;
    background-color: var(--color-border-subtle);
    margin: 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-xs);
}

.section-header p {
    max-width: 560px;
    margin: 0 auto;
    color: var(--color-text-muted);
}

.hero {
    padding-top: calc(var(--spacing-2xl) + 60px);
    padding-bottom: var(--spacing-2xl);
    text-align: center;
}

.hero h1 {
    margin-bottom: var(--spacing-sm);
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xs);
    line-height: 1.65;
    text-align: center;
}

.hero-tagline {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

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

.btn-secondary {
    color: var(--color-text-secondary);
    background-color: transparent;
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-text-secondary);
    color: var(--color-text-primary);
}

.btn-group {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.alert {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.alert-error {
    background-color: #FEF2F2;
    color: #991B1B;
    border-left: 3px solid #DC2626;
}

.alert-success {
    background-color: #F0FDF4;
    color: #166534;
    border-left: 3px solid #16A34A;
}

.alert-info {
    background-color: var(--color-background-alt);
    color: var(--color-text-secondary);
    border-left: 3px solid var(--color-accent);
}

.alert-warning {
    background-color: #FFFBEB;
    color: #92400E;
    border-left: 3px solid #F59E0B;
}

.positioning-block {
    background-color: var(--color-background-alt);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-lg) var(--spacing-xl);
    margin: var(--spacing-xl) auto;
    max-width: 720px;
    text-align: center;
}

.positioning-block h3 {
    font-style: italic;
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.positioning-block p {
    margin-bottom: 0;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

.feature-item {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border-light);
    background-color: var(--color-white);
}

.feature-item h4 {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.feature-item p {
    font-size: 0.9375rem;
    margin-bottom: 0;
    color: var(--color-text-muted);
}

.pricing-card {
    max-width: 480px;
    margin: 0 auto;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    padding: var(--spacing-xl);
    text-align: center;
}

.pricing-label {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.pricing-amount {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    font-weight: 400;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.pricing-period {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: var(--spacing-lg);
    padding: 0;
}

.pricing-features li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

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

.audience-section {
    max-width: 800px;
    margin: 0 auto;
}

.audience-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (max-width: 600px) {
    .audience-list {
        grid-template-columns: 1fr;
    }
}

.audience-item {
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border: 1px solid var(--color-border-light);
}

.audience-item h4 {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.audience-item p {
    font-size: 0.9375rem;
    margin-bottom: 0;
    color: var(--color-text-muted);
}

.process-steps {
    max-width: 680px;
    margin: 0 auto;
    position: relative;
}

.process-step {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) 0;
    position: relative;
}

.process-step:not(:last-child) {
    border-bottom: 1px solid var(--color-border-subtle);
}

.process-step:not(:last-child)::before {
    content: '';
    position: absolute;
    left: 23px;
    top: calc(var(--spacing-lg) + 32px);
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--color-border), transparent);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-accent);
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 2px;
    position: relative;
    z-index: 1;
}

.step-content {
    padding-top: var(--spacing-xs);
}

.step-content h4 {
    font-family: var(--font-sans);
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
    letter-spacing: -0.01em;
}

.step-content p {
    font-size: 0.9375rem;
    margin-bottom: 0;
    color: var(--color-text-muted);
    line-height: 1.65;
}

.sources-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .sources-grid {
        grid-template-columns: 1fr;
    }
}

.source-item {
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border: 1px solid var(--color-border-light);
    text-align: center;
}

.source-item h4 {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.source-item p {
    font-size: 0.875rem;
    margin-bottom: 0;
    color: var(--color-text-muted);
}

.cta-section {
    text-align: center;
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-background-alt);
    border-top: 1px solid var(--color-border-light);
    border-bottom: 1px solid var(--color-border-light);
}

.cta-section h2 {
    margin-bottom: var(--spacing-sm);
}

.cta-section p {
    max-width: 500px;
    margin: 0 auto var(--spacing-lg);
}

.brand-footer {
    background-color: var(--color-text-primary);
    color: var(--color-background);
    padding: var(--spacing-xl) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--color-background);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-border);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--color-background);
}

.footer-note {
    width: 100%;
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-text-secondary);
}

.footer-legal {
    width: 100%;
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
    margin-bottom: 0;
}

.legal-content {
    max-width: 720px;
    margin: 0 auto;
}

.legal-content h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    margin-top: 0;
}

.legal-content p {
    margin-bottom: var(--spacing-sm);
    max-width: none;
}

.legal-content ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    color: var(--color-text-secondary);
}

.legal-content li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.disclaimer-highlight {
    background-color: var(--color-background-alt);
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.disclaimer-highlight h3 {
    margin-bottom: 0;
    font-style: italic;
}

.video-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    background-color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.divider {
    width: 60px;
    height: 1px;
    background-color: var(--color-border);
    margin: var(--spacing-lg) auto;
}

.divider-full {
    width: 100%;
    height: 1px;
    background-color: var(--color-border-subtle);
    margin: var(--spacing-xl) 0;
}

.divider-section {
    width: 100%;
    height: 1px;
    background-color: var(--color-border-light);
}

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

.mb-0 {
    margin-bottom: 0;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: var(--spacing-xs);
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    margin: 5px 0;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.25rem;
    }
    
    h2 {
        font-size: 1.875rem;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero {
        padding-top: calc(var(--spacing-xl) + 60px);
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-background);
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--color-border-light);
        gap: var(--spacing-sm);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .pricing-amount {
        font-size: 2.75rem;
    }
}

.sample-block {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    max-width: 700px;
    margin: var(--spacing-xl) auto 0;
}

.sample-block h4 {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.sample-block p {
    font-size: 0.9375rem;
    margin-bottom: 0;
    color: var(--color-text-muted);
    font-style: italic;
}

.accuracy-highlight {
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: var(--spacing-lg);
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.accuracy-highlight h3 {
    color: var(--color-white);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.accuracy-highlight p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 0;
    font-size: 0.9375rem;
}

.page-header {
    padding-top: calc(var(--spacing-xl) + 60px);
    padding-bottom: var(--spacing-lg);
    text-align: center;
}

.page-header h1 {
    margin-bottom: var(--spacing-xs);
}

.page-header p {
    max-width: 540px;
    margin: 0 auto;
    color: var(--color-text-muted);
    font-size: 1.0625rem;
    line-height: 1.6;
}

.page-header-divider {
    width: 100%;
    max-width: 80px;
    height: 1px;
    background-color: var(--color-border);
    margin: var(--spacing-lg) auto var(--spacing-xl);
}

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

.content-block h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.content-block ul {
    padding-left: var(--spacing-md);
    color: var(--color-text-secondary);
}

.content-block li {
    margin-bottom: var(--spacing-xs);
}