/* =====================================================
   Organizational Operating System - Main Stylesheet
   Inspired by Vercel Design
   ===================================================== */

/* =====================================================
   Font Face - Hubballi (via Google Fonts CDN)
   ===================================================== */
/* Font is loaded via Google Fonts in HTML head */

/* =====================================================
   CSS Variables & Reset
   ===================================================== */
:root {
    /* Colors - Light grey background (#e8e9e8), black foreground */
    --color-bg: #e8e9e8;
    --color-text: #000000;
    --color-text-secondary: #000000;
    --color-border: #d0d0d0;
    --color-accent: #000000;
    --color-hover: #333333;
    
    /* Typography */
    --font-family: 'Hubballi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;
    --font-size-4xl: 64px;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;
    --spacing-4xl: 128px;
    
    /* Layout */
    --max-width: 1200px;
    --border-radius: 8px;
    --border-radius-large: 12px;
    
    /* Transitions */
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Force Hubballi on all elements */
* {
    font-family: 'Hubballi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif !important;
}

h1, h2, h3, h4, h5, h6, p, a, li, span, div, input, button, select, textarea {
    font-family: 'Hubballi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif !important;
}

/* =====================================================
   Typography
   ===================================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    letter-spacing: -0.03em;
}

h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

a {
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
}

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

/* =====================================================
   Layout Utilities
   ===================================================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
}

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

/* =====================================================
   Buttons
   ===================================================== */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: var(--font-size-base);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--color-hover);
    border-color: var(--color-hover);
    color: var(--color-bg);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    border-color: var(--color-text);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 32px;
    font-size: var(--font-size-large);
}

/* =====================================================
   Navigation
   ===================================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

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

.nav-logo a {
    font-size: calc(var(--font-size-large) * 1.5);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a {
    font-size: var(--font-size-base);
    font-weight: 500;
}

/* =====================================================
   Language Switcher
   ===================================================== */
.language-switcher {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-left: var(--spacing-md);
}

.lang-link {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: var(--transition);
}

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

.lang-link.active {
    font-weight: 700;
}

.lang-divider {
    color: var(--color-text-secondary);
    font-weight: 300;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    margin: 3px 0;
    transition: var(--transition);
}

/* =====================================================
   Hero Section
   ===================================================== */
.hero {
    padding: var(--spacing-md) 0 var(--spacing-3xl);
    margin-top: 100px;
    text-align: left;
}

.hero-content {
    max-width: 900px;
}

.hero-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, #000000 0%, #666666 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-start;
    flex-wrap: wrap;
}

/* =====================================================
   Stats Section
   ===================================================== */
.stats {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-md);
}

.stat-value {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.stat-label {
    font-size: var(--font-size-large);
    color: var(--color-text-secondary);
}

/* =====================================================
   Introduction Section
   ===================================================== */
.introduction {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.intro-content {
    max-width: 1000px;
}

.intro-content h2 {
    text-align: left;
    margin-bottom: var(--spacing-xl);
}

.intro-content p {
    font-size: var(--font-size-large);
    line-height: 1.8;
}

.intro-content .highlight {
    font-weight: 700;
    color: var(--color-text);
    font-size: var(--font-size-xl);
    text-align: left;
    margin: var(--spacing-lg) 0;
}

/* =====================================================
   Framework Sections (Paragraphs)
   ===================================================== */
.framework-sections {
    padding: var(--spacing-4xl) 0;
}

.section-title {
    text-align: left;
    margin-bottom: var(--spacing-3xl);
    font-size: var(--font-size-3xl);
}

.paragraphs-list {
    max-width: 1000px;
}

/* Paragraph Item */
.paragraph-item {
    margin-bottom: 0;
    border: none;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    background-color: transparent;
    transition: var(--transition);
}

.paragraph-item:last-child {
    border-bottom: none;
}

.paragraph-item:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

/* Paragraph Header (clickable) */
.paragraph-header {
    display: grid;
    grid-template-columns: 280px 500px 400px 50px; /* Spalte 1 um 30px breiter - verschiebt Spalte 2 nach rechts */
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-md) 0;
    cursor: pointer;
    transition: var(--transition);
}

.paragraph-header:hover {
    background-color: transparent;
}

.paragraph-number {
    font-size: 45px; /* Gleich groß wie Überschrift */
    font-weight: 200;
    color: #999999;
    text-align: left;
    line-height: 1;
}

.paragraph-title {
    /* Feste Breite - Überschrift wird umgebrochen wenn nötig */
}

.paragraph-title h3 {
    margin: 0;
    font-size: 45px; /* 20% kleiner (von 56px) */
    font-weight: 600;
    line-height: 1.1;
}

.paragraph-subtitle {
    margin: 0;
    font-size: 20px; /* 30% größer (von 15px) */
    color: #666666;
    font-weight: 400;
    text-align: left;
    line-height: 1.5;
}

.paragraph-toggle {
    min-width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.paragraph-item.active .paragraph-toggle {
    transform: rotate(180deg);
}

/* Paragraph Content (expandable) */
.paragraph-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, padding 0.3s ease;
    padding: 0 var(--spacing-lg);
    border-top: 1px solid transparent;
}

.paragraph-item.active .paragraph-content {
    max-height: 5000px;
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-xl) 80px;
    border-top: 1px solid var(--color-border);
}

.paragraph-content h4 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.paragraph-content h4:first-child {
    margin-top: 0;
}

.paragraph-content h5 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-large);
    font-weight: 600;
}

.paragraph-content ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.paragraph-content li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.paragraph-content .btn-secondary {
    display: inline-block;
    margin-top: var(--spacing-lg);
}

/* Layer Cards */
.layer-card,
.version-card {
    background-color: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.layer-card h5,
.version-card h5 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-large);
    font-weight: 600;
}

.layer-card p,
.version-card p {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-base);
}

.layer-card p:last-child,
.version-card p:last-child {
    margin-bottom: 0;
}

.version-card.upcoming {
    border-color: var(--color-text);
    background-color: transparent;
}

.version-card.upcoming h5 {
    color: var(--color-text);
}

/* Features Section (kept for other pages) */
.features {
    padding: var(--spacing-4xl) 0;
}

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

.feature-card {
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-large);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--color-text);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.feature-card p {
    margin: 0;
    font-size: var(--font-size-base);
}

/* =====================================================
   Framework Section
   ===================================================== */
.framework-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.framework-visual {
    display: flex;
    justify-content: center;
    padding: var(--spacing-2xl) 0;
}

.framework-cards {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.framework-card {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
}

.framework-card:hover {
    border-color: var(--color-text);
    transform: translateY(-2px);
}

/* =====================================================
   CTA Section
   ===================================================== */
.cta-section {
    padding: var(--spacing-4xl) 0;
    text-align: center;
}

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

.cta-content h2 {
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* =====================================================
   Footer
   ===================================================== */
.footer {
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) 0;
}

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

.footer-brand {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-legal a {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
}

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

.footer-divider {
    color: var(--color-border);
}

/* Old footer styles kept for other pages */
.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: var(--color-text-secondary);
    margin: 0;
}

.footer-column h4 {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-base);
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column a {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
}

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

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

.footer-bottom p {
    margin: 0;
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
}

/* =====================================================
   Navigation Dropdown
   ===================================================== */
.nav-dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    z-index: 2000;
    margin-top: 0;
    padding: var(--spacing-sm) 0;
}

.nav-dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    transition: var(--transition);
    white-space: nowrap;
}

.dropdown-content a:hover {
    background-color: #f5f5f5;
}

/* =====================================================
   Responsive Design
   ===================================================== */
@media (max-width: 768px) {
    :root {
        --font-size-4xl: 40px;
        --font-size-3xl: 32px;
        --font-size-2xl: 24px;
        --spacing-4xl: 64px;
        --spacing-3xl: 48px;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .language-switcher {
        display: flex;
    }
    
    .hero {
        padding: var(--spacing-2xl) 0 var(--spacing-xl);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .framework-cards {
        flex-direction: column;
        align-items: stretch;
    }
    
    /* Paragraph responsive */
    .paragraph-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .paragraph-number {
        min-width: auto;
        text-align: left;
    }
    
    .paragraph-title {
        padding: 0;
    }
    
    .paragraph-toggle {
        align-self: flex-end;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: var(--font-size-large);
    }
    
    .btn-large {
        width: 100%;
        text-align: center;
    }
}

/* =====================================================
   Animations
   ===================================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.feature-card,
.stat-item {
    animation: fadeIn 0.6s ease-out;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

/* =====================================================
   Content Pages
   ===================================================== */
.page-header {
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    margin-top: 80px;
    background-color: #fafafa;
    border-bottom: 1px solid var(--color-border);
}

.breadcrumb {
    font-size: var(--font-size-small);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

.breadcrumb a {
    color: var(--color-text-secondary);
}

.breadcrumb a:hover {
    color: var(--color-text);
}

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

.page-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin: 0;
}

.content-section {
    padding: var(--spacing-md) 0 var(--spacing-3xl);
    margin-top: 100px;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-3xl);
}

.main-content {
    max-width: 800px;
}

.main-content .lead {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.main-content h2 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
}

.main-content h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.main-content h4 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.main-content ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.main-content li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

/* Box Styles */
.highlight-box,
.principle-box,
.warning-box {
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-text);
    background-color: transparent;
}

.principle-box {
    text-align: center;
    font-weight: 600;
}

.warning-box {
    border-left-color: #e74c3c;
}

.important-block {
    background-color: transparent;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
}

.comparison-box {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: var(--spacing-lg);
    background-color: transparent;
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
}

/* Lists */
.clean-list {
    list-style: none;
    padding: 0;
}

.clean-list li {
    padding-left: var(--spacing-md);
    position: relative;
}

.clean-list li:before {
    content: "—";
    position: absolute;
    left: 0;
}

.cross-list li:before {
    content: "✗ ";
    color: #e74c3c;
}

.check-list li:before {
    content: "✓ ";
    color: #27ae60;
}

.principle-list li,
.benefit-list li {
    margin-bottom: var(--spacing-md);
}

/* Layer Section */
.layer-section {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-large);
}

.layer-emphasis {
    font-weight: 700;
    color: var(--color-text);
    margin-top: var(--spacing-md);
}

/* Question List */
.question-list {
    margin: var(--spacing-lg) 0;
}

.question-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: transparent;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
}

.question-mark {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-text);
    color: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.question-text {
    font-weight: 500;
}

/* Trigger Grid */
.trigger-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.trigger-item {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}

.trigger-item h4 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
}

/* Comparison Table */
.comparison-table {
    margin: var(--spacing-lg) 0;
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background-color: var(--color-border);
}

.comparison-cell {
    padding: var(--spacing-md);
    background-color: var(--color-bg);
}

.comparison-cell.header {
    font-weight: 700;
    background-color: var(--color-bg);
}

/* Timeline */
.timeline {
    margin: var(--spacing-2xl) 0;
    position: relative;
}

.timeline:before {
    content: "";
    position: absolute;
    left: 30px;
    top: 40px;
    bottom: 40px;
    width: 2px;
    background-color: var(--color-border);
}

.timeline-item {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.timeline-marker {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-text);
    color: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-large);
    flex-shrink: 0;
    z-index: 1;
}

.timeline-item.upcoming .timeline-marker {
    border: 3px solid var(--color-text);
    background-color: var(--color-bg);
    color: var(--color-text);
}

.timeline-content {
    flex: 1;
    padding-top: 5px;
}

.timeline-content h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
}

.timeline-date {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

/* Insights Grid */
.insights-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.insight-card {
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}

.insight-number {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: #ccc;
    margin-bottom: var(--spacing-sm);
}

.insight-detail {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-sm);
}

/* Methodology Steps */
.methodology-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.method-step {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-text);
    color: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.method-step h4 {
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

/* Future Topics */
.future-topics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.future-topic {
    padding: var(--spacing-md);
    background-color: transparent;
    border-radius: var(--border-radius);
}

.future-topic h4 {
    margin-top: 0;
}

/* Tech Grid */
.tech-grid,
.definition-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.tech-card,
.definition-card,
.evolution-card {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}

.tech-card h4,
.definition-card h4,
.evolution-card h4 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
}

/* Separation Table */
.separation-table {
    margin: var(--spacing-lg) 0;
}

.separation-item {
    padding: var(--spacing-lg);
    background-color: transparent;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.separation-item h4 {
    margin-top: 0;
}

/* Boundary List */
.boundary-list {
    margin: var(--spacing-lg) 0;
}

.boundary-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: transparent;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.boundary-icon {
    font-size: var(--font-size-3xl);
    flex-shrink: 0;
}

.boundary-item h4 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
}

/* Evolution Cards */
.evolution-cards {
    margin: var(--spacing-lg) 0;
}

.evolution-result {
    font-style: italic;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-sm);
}

/* Closing Statement */
.closing-statement {
    padding: var(--spacing-xl);
    background-color: transparent;
    border-radius: var(--border-radius-large);
    text-align: center;
    margin: var(--spacing-2xl) 0;
}

.closing-statement h3 {
    margin-top: 0;
}

/* Next Section */
.next-section {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-border);
}

.next-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.next-link {
    flex: 1;
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.next-link:hover {
    border-color: var(--color-text);
    background-color: transparent;
}

.next-label {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.next-title {
    font-weight: 600;
    font-size: var(--font-size-large);
}

/* Sidebar */
.sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.sidebar-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: var(--transition);
    font-size: var(--font-size-large);
}

.sidebar-link:hover {
    border-left-color: var(--color-border);
    background-color: rgba(0, 0, 0, 0.02);
}

.sidebar-link.active {
    border-left-color: var(--color-text);
    font-weight: 700;
    background-color: rgba(0, 0, 0, 0.03);
}

.sidebar-cta {
    padding: var(--spacing-lg);
    background-color: transparent;
    border-radius: var(--border-radius);
}

.sidebar-cta h4 {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
}

.sidebar-cta .btn-secondary {
    width: 100%;
    text-align: center;
    margin-top: var(--spacing-md);
}

.concept-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.concept-list li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
}

.sidebar-cta blockquote {
    margin: 0;
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border-left: 3px solid var(--color-text);
    font-style: italic;
}

/* Responsive Content Pages */
@media (max-width: 1024px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
    }
}

/* =====================================================
   Legal Content Pages
   ===================================================== */
.legal-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.legal-title {
    position: sticky;
    top: 100px;
}

.legal-title h1 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin: 0;
    line-height: 1.1;
}

.legal-content {
    max-width: 800px;
}

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

.legal-content h2 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-2xl);
}

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

.legal-content h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
}

.legal-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.legal-content ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.legal-content li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.legal-content a {
    color: var(--color-text);
    text-decoration: underline;
}

.legal-content a:hover {
    color: var(--color-hover);
}

.contact-info {
    background-color: transparent;
    padding: 0;
    border-radius: 0;
    border: none;
    margin: var(--spacing-xl) 0;
}

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

.contact-info h3:first-child {
    margin-top: 0;
}

.response-note {
    background-color: transparent;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--color-text);
    margin-top: var(--spacing-xl);
}

.response-note p {
    margin: 0;
}

/* Responsive Content Pages */
@media (max-width: 1024px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .trigger-grid,
    .insights-grid,
    .future-topics,
    .tech-grid,
    .definition-grid {
        grid-template-columns: 1fr;
    }
    
    .methodology-steps {
        grid-template-columns: 1fr;
    }
    
    .comparison-row {
        grid-template-columns: 1fr;
    }
    
    .timeline:before {
        left: 15px;
    }
    
    .timeline-marker {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }
    
    .next-links {
        flex-direction: column;
    }
}

/* FAQ Items */
.faq-item {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h2 {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
}

.whitepaper-download {
    background-color: transparent;
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-large);
    margin: var(--spacing-2xl) 0;
}

/* Glossary Terms */
.glossary-term {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.glossary-term:last-child {
    border-bottom: none;
}

.glossary-term h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.glossary-term p {
    margin: 0;
}

/* Newsletter Signup */
.newsletter-signup {
    background-color: transparent;
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-large);
    margin: var(--spacing-2xl) 0;
}

.newsletter-signup h3 {
    margin-top: 0;
}

/* Working Paper */
.working-paper {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}

.working-paper h4 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-large);
}

.working-paper p {
    margin-bottom: var(--spacing-sm);
}

.paper-status {
    font-size: var(--font-size-small);
    font-style: italic;
    color: var(--color-text);
    margin: 0;
}

/* =====================================================
   Contact Form
   ===================================================== */
.contact-form {
    margin: var(--spacing-2xl) 0;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-family: 'Hubballi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif !important;
    background-color: var(--color-bg);
    color: var(--color-text);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-text);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-large);
}

.form-status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    display: none;
}

.form-status.success {
    display: block;
    background-color: rgba(0, 128, 0, 0.1);
    border: 1px solid rgba(0, 128, 0, 0.3);
    color: var(--color-text);
}

.form-status.error {
    display: block;
    background-color: rgba(255, 0, 0, 0.1);
    border: 1px solid rgba(255, 0, 0, 0.3);
    color: var(--color-text);
}

.contact-divider {
    margin: var(--spacing-3xl) 0;
    height: 1px;
    background-color: var(--color-border);
}

.contact-info {
    margin: var(--spacing-xl) 0;
}

.contact-info h4 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

.response-note {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background-color: rgba(0, 0, 0, 0.03);
    border-left: 3px solid var(--color-text);
    border-radius: var(--border-radius);
}

.response-note p {
    margin: 0;
}