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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-weight: 600;
    font-size: 1.2rem;
    color: #2563eb;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: #2563eb;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2563eb;
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #ffffff, #e0e7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.8;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background: #ffffff;
    color: #2563eb;
}

.btn-primary:hover {
    background: #f8fafc;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

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

.hero-image {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Section Styles */
.section {
    padding: 80px 0;
}

.section-dark {
    background: #1a1a1a;
    color: white;
}

.section-highlight {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: inherit;
}

.section-subtitle {
    font-size: 1.2rem;
    opacity: 0.7;
    max-width: 600px;
    margin: 0 auto;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.content-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.highlight-box {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid #2563eb;
    margin-top: 2rem;
}

.highlight-box h3 {
    color: #2563eb;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.highlight-box ul {
    list-style: none;
    padding: 0;
}

.highlight-box li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.highlight-box li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    border: 1px solid #e2e8f0;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: #dc2626;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: 1rem;
}

.stat-source {
    font-size: 0.9rem;
    color: #6b7280;
    font-style: italic;
}

/* Dual Impact Section */
.dual-impact {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.impact-card {
    background: #2a2a2a;
    padding: 2.5rem;
    border-radius: 16px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.impact-card.negative {
    border-color: #dc2626;
}

.impact-card.positive {
    border-color: #059669;
}

.impact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.impact-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.negative .impact-icon {
    background: rgba(220, 38, 38, 0.2);
    color: #fca5a5;
}

.positive .impact-icon {
    background: rgba(5, 150, 105, 0.2);
    color: #6ee7b7;
}

.impact-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: white;
}

.impact-card ul {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.impact-card li {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: #d1d5db;
}

.impact-card li:last-child {
    border-bottom: none;
}

.impact-card strong {
    color: white;
}

.paradox-note, .enhancement-note {
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    border-left: 3px solid;
}

.paradox-note {
    border-left-color: #dc2626;
}

.enhancement-note {
    border-left-color: #059669;
}

/* Memory Comparison */
.memory-comparison {
    margin-top: 4rem;
}

.memory-comparison h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.comparison-item {
    background: #2a2a2a;
    padding: 2rem;
    border-radius: 12px;
}

.comparison-item h4 {
    color: #60a5fa;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.comparison-item ul {
    list-style: none;
    padding: 0;
}

.comparison-item li {
    padding: 0.5rem 0;
    color: #d1d5db;
    position: relative;
    padding-left: 1.5rem;
}

.comparison-item li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #60a5fa;
}

.illusion-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid #f59e0b;
    padding: 1.5rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #fbbf24;
}

.illusion-warning i {
    font-size: 1.5rem;
}

/* Collaboration Section */
.strengths-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.strength-column {
    background: #f8fafc;
    padding: 2.5rem;
    border-radius: 16px;
    border-top: 4px solid #2563eb;
}

.strength-column h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    color: #2563eb;
    font-size: 1.4rem;
}

.strength-column ul {
    list-style: none;
    padding: 0;
}

.strength-column li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #e2e8f0;
    position: relative;
    padding-left: 1.5rem;
}

.strength-column li:last-child {
    border-bottom: none;
}

.strength-column li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #059669;
    font-weight: bold;
}

.sweet-spot {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    margin-bottom: 3rem;
}

.sweet-spot h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.sweet-spot p {
    font-size: 1.1rem;
    line-height: 1.7;
}

.frameworks h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.framework-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.framework-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-top: 4px solid #2563eb;
    transition: transform 0.3s ease;
}

.framework-card:hover {
    transform: translateY(-5px);
}

.framework-card h4 {
    color: #2563eb;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* Challenges Section */
.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.challenge-card {
    background: #2a2a2a;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    transition: transform 0.3s ease;
    border: 1px solid #374151;
}

.challenge-card:hover {
    transform: translateY(-5px);
    border-color: #60a5fa;
}

.challenge-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.challenge-card h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.challenge-card p {
    color: #d1d5db;
    line-height: 1.6;
}

.feedback-loop {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid #ef4444;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.feedback-loop h3 {
    color: #fca5a5;
    margin-bottom: 1rem;
}

.feedback-loop p {
    color: #d1d5db;
    line-height: 1.7;
}

/* Metrics Table */
.metrics-table {
    overflow-x: auto;
    margin-bottom: 3rem;
}

.metrics-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.metrics-table th,
.metrics-table td {
    padding: 1.5rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.metrics-table th {
    background: #2563eb;
    color: white;
    font-weight: 600;
}

.metrics-table tr:hover {
    background: #f8fafc;
}

.evolution-note {
    background: #f0f9ff;
    border: 1px solid #0ea5e9;
    padding: 2rem;
    border-radius: 12px;
}

.evolution-note h3 {
    color: #0ea5e9;
    margin-bottom: 1rem;
}

/* Recommendations Section */
.recommendations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.recommendation-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    border-top: 4px solid #2563eb;
}

.recommendation-card:hover {
    transform: translateY(-5px);
}

.rec-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    color: white;
}

.recommendation-card h3 {
    color: #2563eb;
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
}

.recommendation-card ul {
    list-style: none;
    padding: 0;
}

.recommendation-card li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #e2e8f0;
    position: relative;
    padding-left: 1.5rem;
    color: #374151;
}

.recommendation-card li:last-child {
    border-bottom: none;
}

.recommendation-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}

.multi-stakeholder {
    background: linear-gradient(135deg, #059669, #047857);
    color: white;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
}

.multi-stakeholder h3 {
    margin-bottom: 1rem;
    font-size: 1.6rem;
}

.multi-stakeholder p {
    font-size: 1.1rem;
    line-height: 1.7;
}

/* Conclusion Section */
.conclusion {
    background: linear-gradient(135deg, #1e293b, #334155);
    color: white;
}

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

.conclusion-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    background: linear-gradient(45deg, #60a5fa, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.conclusion-text {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.vision-box {
    background: rgba(255, 255, 255, 0.1);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.vision-box h3 {
    color: #60a5fa;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.vision-box p {
    line-height: 1.7;
    opacity: 0.9;
}

/* Citations Section */
.citations {
    background: #f8fafc;
}

.citations h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2563eb;
}

.citations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.citation-category h3 {
    color: #2563eb;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.citation-list {
    list-style: none;
    padding: 0;
}

.citation-list li {
    padding: 1rem 0;
    border-bottom: 1px solid #e2e8f0;
    color: #374151;
    line-height: 1.6;
}

.citation-list li:last-child {
    border-bottom: none;
}

.citation-note {
    background: #e0f2fe;
    border: 1px solid #0ea5e9;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    color: #0c4a6e;
    font-style: italic;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: #60a5fa;
    margin-bottom: 1rem;
}

.footer-section p {
    color: #d1d5db;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section li {
    padding: 0.5rem 0;
    color: #d1d5db;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .dual-impact {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .strengths-comparison {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .challenges-grid {
        grid-template-columns: 1fr;
    }
    
    .recommendations-grid {
        grid-template-columns: 1fr;
    }
    
    .citations-grid {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .section {
        padding: 40px 0;
    }
}