/* Minimal Light Design - Variables */
:root {
    --color-bg: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #e9ecef;
    --color-text: #1a1a1a;
    --color-text-secondary: #6c757d;
    --color-text-tertiary: #adb5bd;
    --color-primary: #0066ff;
    --color-primary-light: #e6f0ff;
    --color-accent: #00d160;
    --color-border: #dee2e6;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 64px;
    --spacing-xxl: 96px;
    --max-width: 1200px;
    --border-radius: 16px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

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

/* Buttons */
.btn {
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'Inter', sans-serif;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: #0052cc;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 102, 255, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

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

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border);
    width: 100%;
}

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

.btn-large {
    padding: 18px 48px;
    font-size: 18px;
}

/* Hero Section */
.hero {
    padding: var(--spacing-xxl) 0;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

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

.hero-label {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.title-accent {
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius);
    max-width: 600px;
    margin: 0 auto;
}

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

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-text);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--color-border);
}

/* Features Section */
.features {
    padding: var(--spacing-xxl) 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    margin-top: var(--spacing-sm);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-lg);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.feature-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary-light);
    line-height: 1;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* Why Works Section */
.why-works {
    padding: var(--spacing-xxl) 0;
    background: var(--color-bg-secondary);
}

.why-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.why-item {
    margin-bottom: var(--spacing-lg);
}

.why-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.why-item p {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.why-visual {
    display: flex;
    justify-content: center;
}

.visual-card {
    background: var(--color-bg);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
    text-align: center;
    min-width: 300px;
}

.visual-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.visual-data {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.data-pair {
    font-size: 1.5rem;
    font-weight: 700;
}

.data-arrow {
    font-size: 2rem;
    color: var(--color-primary);
}

.data-result {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
}

.visual-period {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

/* Pricing Section */
.pricing {
    padding: var(--spacing-xxl) 0;
}

.pricing-header {
    margin-bottom: var(--spacing-xl);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    padding: var(--spacing-lg);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    position: relative;
    transition: all 0.3s;
}

.pricing-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.pricing-featured {
    border-color: var(--color-primary);
    border-width: 3px;
}

.pricing-badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-md);
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header-card {
    margin-bottom: var(--spacing-lg);
}

.pricing-name {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
}

.pricing-desc {
    color: var(--color-text-secondary);
}

.pricing-price {
    margin: var(--spacing-lg) 0;
}

.price-main {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.price-value {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1;
}

.price-period {
    color: var(--color-text-secondary);
    margin-left: var(--spacing-xs);
}

.pricing-features {
    list-style: none;
    margin: var(--spacing-lg) 0;
}

.pricing-features li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

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

.pricing-footer {
    margin-top: var(--spacing-lg);
}

.pricing-yearly {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
}

.save {
    color: var(--color-accent);
    font-weight: 600;
}

/* Email Delivery */
.email-delivery {
    padding: var(--spacing-xxl) 0;
    background: var(--color-bg-secondary);
}

.email-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.email-icon {
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: center;
}

.email-text {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* Testimonials */
.testimonials {
    padding: var(--spacing-xxl) 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.testimonial-card {
    padding: var(--spacing-lg);
    background: var(--color-bg);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
}

.testimonial-text {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.testimonial-author strong {
    font-weight: 600;
}

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

/* Report Preview Gallery */
.report-preview {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--color-border);
}

.preview-section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.preview-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.preview-card-report {
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s;
}

.preview-card-report:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.preview-thumbnail {
    width: 100%;
    height: 240px;
    background: var(--color-bg-secondary);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-mockup {
    width: 100%;
    height: 100%;
    padding: var(--spacing-md);
}

.mockup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.mockup-title {
    font-weight: 700;
    color: var(--color-primary);
}

.mockup-date, .mockup-subtitle {
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.mockup-table {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.mockup-row {
    display: grid;
    grid-template-columns: 30px 1fr 60px 60px;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    padding: var(--spacing-xs);
    background: var(--color-bg);
    border-radius: 4px;
}

.mockup-buy {
    color: var(--color-accent);
    font-weight: 600;
}

.mockup-sell {
    color: #eb423d;
    font-weight: 600;
}

.mockup-chart-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.mockup-pair {
    font-weight: 700;
    font-size: 1rem;
}

.mockup-success {
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.875rem;
}

.mockup-chart {
    margin: var(--spacing-md) 0;
}

.mockup-bars {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-xs);
    height: 100px;
    justify-content: space-around;
    margin: var(--spacing-md) 0;
}

.bar {
    width: 30px;
    border-radius: 4px 4px 0 0;
}

.mockup-labels {
    display: flex;
    justify-content: space-around;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.preview-info {
    padding: var(--spacing-md);
}

.preview-info h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.preview-info p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.preview-caption {
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
    font-style: italic;
    margin-top: var(--spacing-lg);
}

/* About Author */
.about-author {
    text-align: center;
    max-width: 600px;
    margin: var(--spacing-xl) auto 0;
    padding: var(--spacing-xl);
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius);
}

.author-avatar {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.author-avatar img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.author-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.author-bio {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* Data Processing Section */
.data-processing {
    padding: var(--spacing-xxl) 0;
    background: var(--color-bg-secondary);
}

.data-steps {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: var(--spacing-lg);
    align-items: start;
    margin: var(--spacing-xl) 0;
}

.step-card {
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
    transition: all 0.3s;
}

.step-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.step-number {
    display: inline-block;
    width: 48px;
    height: 48px;
    line-height: 48px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.step-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

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

.step-arrow {
    font-size: 2.5rem;
    color: var(--color-primary);
    align-self: center;
    font-weight: 300;
}

.data-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.data-stat {
    text-align: center;
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
}

.data-stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.data-stat-label {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Seasonality Types Section */
.seasonality-types {
    padding: var(--spacing-xxl) 0;
    background: white;
}

.types-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.type-card {
    padding: var(--spacing-xl);
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
    transition: all 0.3s;
}

.type-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.type-featured {
    border-color: var(--color-accent);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.05), rgba(124, 58, 237, 0.02));
}

.type-featured:hover {
    border-color: var(--color-accent);
}

.type-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-primary);
    color: white;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.type-badge-featured {
    background: var(--color-accent);
}

.type-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.type-description {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.type-features {
    list-style: none;
    padding: 0;
}

.type-features li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

.types-note {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-md);
    background: rgba(124, 58, 237, 0.1);
    border-radius: var(--border-radius);
    color: var(--color-text-secondary);
}

.types-note strong {
    color: var(--color-accent);
    font-weight: 700;
}

/* Final CTA */
.final-cta {
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

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

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.cta-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.cta-note {
    margin-top: var(--spacing-md);
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

/* Footer */
.footer {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-secondary);
    border-top: 2px solid var(--color-border);
}

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

.footer-col h4 {
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-col p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.footer-col a {
    display: block;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
    transition: color 0.2s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 48px;
        --spacing-xxl: 64px;
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .why-content {
        grid-template-columns: 1fr;
    }

    .features-grid,
    .pricing-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .data-steps {
        grid-template-columns: 1fr;
    }

    .step-arrow {
        display: none;
    }

    .data-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .types-grid {
        grid-template-columns: 1fr;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}