/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #8b5cf6;
    --accent-color: #10b981;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --background: #ffffff;
    --surface: #f9fafb;
    --border: #e5e7eb;
    --shadow: rgba(0, 0, 0, 0.1);
    --gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--background);
}

.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 var(--border);
    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-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
}

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

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

/* Blockchain Animation */
.blockchain-animation {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.block {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 15px;
    position: absolute;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
    animation: float 3s ease-in-out infinite;
}

.block-1 {
    left: 0;
    animation-delay: 0s;
}

.block-2 {
    left: 120px;
    animation-delay: 0.5s;
}

.block-3 {
    left: 240px;
    animation-delay: 1s;
}

.connection {
    position: absolute;
    height: 4px;
    background: var(--primary-color);
    top: 50%;
    transform: translateY(-50%);
    animation: pulse 2s ease-in-out infinite;
}

.connection-1 {
    left: 80px;
    width: 40px;
}

.connection-2 {
    left: 200px;
    width: 40px;
}

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

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* Courses Section */
.courses {
    padding: 80px 0;
    background: var(--background);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 60px;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.course-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border);
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.course-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.course-icon i {
    font-size: 2rem;
    color: white;
}

.course-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.course-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.course-topics {
    list-style: none;
    margin-bottom: 25px;
}

.course-topics li {
    padding: 8px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 25px;
}

.course-topics li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.course-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.course-link:hover {
    gap: 15px;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.feature-item {
    text-align: center;
    padding: 30px;
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.feature-icon i {
    font-size: 2.2rem;
    color: white;
}

.feature-item h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

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

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 40px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.3rem;
    font-weight: 600;
}

.footer-logo i {
    margin-right: 10px;
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* Page Styles */
.page-hero {
    padding: 120px 0 60px;
    background: var(--surface);
    text-align: center;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.content-section {
    padding: 60px 0;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.content-text h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.content-text p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

.content-visual {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px var(--shadow);
    text-align: center;
}

.highlight-box {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-left: 4px solid var(--primary-color);
    padding: 30px;
    border-radius: 10px;
    margin: 30px 0;
}

.highlight-box h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.key-points {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 20px var(--shadow);
    margin: 30px 0;
}

.key-points h3 {
    margin-bottom: 20px;
    color: var(--text-primary);
}

.key-points ul {
    list-style: none;
}

.key-points li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    color: var(--text-secondary);
}

.key-points li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 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: 20px 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .blockchain-animation {
        height: 200px;
        transform: scale(0.7);
    }

    .content-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .page-title {
        font-size: 2.2rem;
    }
}

/* Page-specific styles */

/* Blockchain Demo Styles */
.blockchain-demo {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    overflow-x: auto;
}

.demo-block {
    background: white;
    border: 2px solid var(--primary-color);
    border-radius: 10px;
    padding: 15px;
    min-width: 150px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.2);
}

.demo-block h4 {
    margin-bottom: 10px;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.block-content p {
    font-size: 0.8rem;
    margin: 5px 0;
    color: var(--text-secondary);
}

.demo-arrow {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: bold;
}

/* Consensus Demo */
.consensus-demo {
    text-align: center;
}

.consensus-types {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 20px;
}

.consensus-item {
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow);
    flex: 1;
}

.consensus-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.consensus-item h5 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

/* Smart Contract Demo */
.smart-contract-demo {
    text-align: center;
}

.code-block {
    background: #1e1e1e;
    color: #e6e6e6;
    padding: 20px;
    border-radius: 10px;
    margin-top: 15px;
    font-family: 'Courier New', monospace;
    text-align: left;
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    font-size: 0.85rem;
    line-height: 1.4;
}

/* NFT Fungibility Demo */
.fungibility-demo {
    text-align: center;
}

.comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 20px;
}

.token-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin: 15px 0;
}

.token {
    background: var(--gradient);
    color: white;
    padding: 15px 20px;
    border-radius: 10px;
    font-weight: 600;
    min-width: 80px;
}

.token.nft {
    background: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);
}

.equals, .not-equals {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-primary);
}

/* Standards Demo */
.standards-demo {
    text-align: center;
}

.standards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 20px;
}

.standard-item {
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow);
}

.standard-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
}

.standard-icon i {
    color: white;
    font-size: 1.2rem;
}

.standard-item h5 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

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

.standard-item li {
    padding: 3px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Use Cases Demo */
.use-cases-demo {
    text-align: center;
}

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 20px;
}

.use-case-item {
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow);
}

.use-case-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.use-case-item h5 {
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.use-case-item p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Risks Demo */
.risks-demo {
    text-align: center;
}

.risk-items {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 20px;
}

.risk-item {
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow);
}

.risk-item.positive {
    border-left: 4px solid var(--accent-color);
}

.risk-item.negative {
    border-left: 4px solid #ef4444;
}

.risk-item i {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.risk-item.positive i {
    color: var(--accent-color);
}

.risk-item.negative i {
    color: #ef4444;
}

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

.risk-item li {
    padding: 5px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* DAO Governance Demo */
.governance-demo {
    text-align: center;
}

.governance-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 20px;
}

.hierarchy {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.level {
    background: var(--gradient);
    color: white;
    padding: 10px;
    border-radius: 8px;
    font-weight: 600;
}

.network {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.node {
    background: var(--accent-color);
    color: white;
    padding: 15px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

/* Voting Demo */
.voting-demo {
    text-align: center;
}

.voting-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.step {
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow);
    display: flex;
    align-items: center;
    gap: 15px;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.step-content h5 {
    margin-bottom: 5px;
    color: var(--text-primary);
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Treasury Demo */
.treasury-demo {
    text-align: center;
}

.treasury-breakdown {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 20px;
}

.asset-item {
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow);
    display: flex;
    align-items: center;
    gap: 15px;
}

.asset-icon {
    font-size: 1.5rem;
}

.asset-info h5 {
    margin-bottom: 5px;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.asset-info p {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* DAO Types Demo */
.dao-types-demo {
    text-align: center;
}

.dao-types-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 20px;
}

.dao-type {
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow);
}

.dao-type i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.dao-type h5 {
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.dao-type p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Future Demo */
.future-demo {
    text-align: center;
}

.evolution-timeline {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
}

.evolution-stage {
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow);
    border-left: 4px solid var(--primary-color);
}

.stage-year {
    background: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 10px;
}

.evolution-stage h5 {
    margin-bottom: 8px;
    color: var(--text-primary);
}

.evolution-stage p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* DeFi Comparison */
.defi-comparison {
    text-align: center;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 20px;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.feature {
    background: white;
    padding: 12px;
    border-radius: 8px;
    box-shadow: 0 2px 8px var(--shadow);
    font-size: 0.9rem;
}

/* AMM Demo */
.amm-demo {
    text-align: center;
}

.liquidity-pool {
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow);
    margin-top: 20px;
}

.pool-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
}

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

.token-side .token {
    background: var(--gradient);
    color: white;
    padding: 10px 15px;
    border-radius: 10px;
    font-weight: 600;
    margin-bottom: 8px;
}

.amount {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

.pool-circle {
    width: 60px;
    height: 60px;
    background: var(--accent-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin: 0 auto 8px;
}

.formula {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-style: italic;
}

.price {
    background: var(--surface);
    padding: 10px;
    border-radius: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Lending Demo */
.lending-demo {
    text-align: center;
}

.lending-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.lending-flow .step {
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow);
    text-align: center;
    min-width: 120px;
}

.step-icon {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.lending-flow .step h5 {
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.lending-flow .step p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.arrow {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: bold;
}

.health-indicator {
    margin-top: 20px;
    text-align: center;
}

.health-bar {
    background: #e5e7eb;
    height: 10px;
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 8px;
}

.health-fill {
    height: 100%;
    transition: width 0.3s ease;
}

.health-fill.safe {
    background: var(--accent-color);
}

/* Yield Demo */
.yield-demo {
    text-align: center;
}

.strategy-flow {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

.strategy-step {
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow);
}

.protocol {
    background: var(--primary-color);
    color: white;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 8px;
}

.action {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 5px;
}

.reward {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.strategy-arrow {
    color: var(--accent-color);
    font-size: 1.5rem;
    font-weight: bold;
    text-align: center;
}

.total-apy {
    background: var(--accent-color);
    color: white;
    padding: 15px;
    border-radius: 10px;
    margin-top: 20px;
}

/* Stablecoin Demo */
.stablecoin-demo {
    text-align: center;
}

.stablecoin-types {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-top: 20px;
}

.stablecoin-type {
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow);
}

.type-icon {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.stablecoin-type h5 {
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.examples {
    background: var(--surface);
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    margin-bottom: 5px;
    color: var(--primary-color);
    font-weight: 600;
}

.backing {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* DeFi Metrics */
.defi-metrics {
    text-align: center;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 20px;
}

.metric {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow);
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Layer 2 Trilemma */
.trilemma-demo {
    text-align: center;
}

.trilemma-triangle {
    position: relative;
    height: 300px;
    margin: 20px 0;
}

.vertex {
    position: absolute;
    background: white;
    padding: 15px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow);
    text-align: center;
    width: 140px;
}

.vertex.security {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.vertex.decentralization {
    bottom: 0;
    left: 0;
}

.vertex.scalability {
    bottom: 0;
    right: 0;
}

.vertex-icon {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.vertex h5 {
    margin-bottom: 5px;
    color: var(--text-primary);
}

.vertex p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.center-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--gradient);
    color: white;
    padding: 10px 15px;
    border-radius: 20px;
    font-weight: 600;
}

/* Layer Comparison */
.layer-comparison {
    text-align: center;
}

.comparison-table {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2px;
    background: var(--border);
    border-radius: 10px;
    overflow: hidden;
    margin-top: 20px;
}

.comparison-header {
    display: contents;
}

.comparison-header > div {
    background: var(--primary-color);
    color: white;
    padding: 15px 10px;
    font-weight: 600;
    font-size: 0.9rem;
}

.comparison-row {
    display: contents;
}

.comparison-row > div {
    background: white;
    padding: 12px 10px;
    font-size: 0.9rem;
}

.metric {
    font-weight: 600;
    color: var(--text-primary);
}

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

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

/* Optimistic Demo */
.optimistic-demo {
    text-align: center;
}

.rollup-flow {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 20px;
}

/* ZK Demo */
.zk-demo {
    text-align: center;
}

.zk-flow {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

.zk-step {
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow);
    display: flex;
    align-items: center;
    gap: 15px;
}

.zk-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.zk-step h5 {
    margin-bottom: 5px;
    color: var(--text-primary);
}

.zk-step p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.zk-benefits {
    display: flex;
    justify-content: space-around;
    margin-top: 20px;
}

.benefit {
    background: var(--surface);
    padding: 8px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    color: var(--accent-color);
    font-weight: 600;
}

/* Ecosystem Demo */
.ecosystem-demo {
    text-align: center;
}

.ecosystem-layers {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

.layer {
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow);
}

.layer h5 {
    margin-bottom: 8px;
    color: var(--text-primary);
}

.layer-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.l2-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.l2-item {
    background: var(--primary-color);
    color: white;
    padding: 8px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.app-item {
    background: var(--accent-color);
    color: white;
    padding: 8px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Future Demo */
.roadmap {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
    position: relative;
}

.roadmap::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 20px;
    bottom: 20px;
    width: 2px;
    background: var(--border);
}

.roadmap-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow);
    position: relative;
}

.timeline-dot {
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    margin-top: 8px;
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

.roadmap-item.current .timeline-dot {
    background: var(--accent-color);
}

.roadmap-item h5 {
    margin-bottom: 5px;
    color: var(--text-primary);
}

.roadmap-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Quiz Styles */
.quiz-section {
    background: var(--surface);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    margin: 40px 0;
}

.quiz-question {
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
}

.quiz-question h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.quiz-question p {
    font-size: 1.1rem;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 25px;
}

.quiz-option {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: white;
    border-radius: 10px;
    border: 2px solid var(--border);
    cursor: pointer;
    transition: all 0.3s ease;
}

.quiz-option:hover {
    border-color: var(--primary-color);
    background: #f8fafc;
}

.quiz-option input[type="radio"] {
    margin: 0;
}

.quiz-option span {
    color: var(--text-primary);
    font-weight: 500;
}

.quiz-next {
    width: 100%;
    margin-top: 10px;
}

.quiz-results {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 20px auto;
}

.score {
    color: white;
    font-size: 2rem;
    font-weight: 700;
}

.result-message {
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
    font-weight: 600;
}

.result-message.passed {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: #065f46;
}

.result-message.failed {
    background: linear-gradient(135deg, #fef2f2 0%, #fecaca 100%);
    color: #991b1b;
}

/* Navigation Buttons */
.navigation-buttons {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 60px;
    flex-wrap: wrap;
}

/* Progress Bar */
.progress-bar {
    background: var(--border);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin: 20px 0;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--gradient);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-text {
    position: absolute;
    right: 0;
    top: 12px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Notification Styles */
.notification {
    position: fixed;
    top: 90px;
    right: 20px;
    background: white;
    color: var(--text-primary);
    padding: 15px 20px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 10000;
    border-left: 4px solid var(--primary-color);
}

.notification.show {
    transform: translateX(0);
}

.notification-success {
    border-left-color: var(--accent-color);
}

.notification-error {
    border-left-color: #ef4444;
}

/* Active Navigation Link */
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    width: 100%;
}

@media (max-width: 768px) {
    /* Mobile optimizations for page-specific components */
    .blockchain-demo {
        flex-direction: column;
        gap: 10px;
    }

    .demo-block {
        min-width: auto;
        width: 100%;
    }

    .comparison {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .consensus-types {
        flex-direction: column;
    }

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

    .use-case-grid {
        grid-template-columns: 1fr;
    }

    .risk-items {
        grid-template-columns: 1fr;
    }

    .governance-comparison {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

    .treasury-breakdown {
        grid-template-columns: 1fr;
    }

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

    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .lending-flow {
        flex-direction: column;
    }

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

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

    .trilemma-triangle {
        height: 400px;
    }

    .vertex {
        width: 120px;
        padding: 12px;
    }

    .comparison-table {
        font-size: 0.8rem;
    }

    .rollup-flow {
        grid-template-columns: 1fr;
    }

    .zk-benefits {
        flex-direction: column;
        gap: 10px;
    }

    .l2-grid {
        grid-template-columns: 1fr;
    }

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

    .navigation-buttons {
        flex-direction: column;
    }

    .navigation-buttons .btn {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        justify-content: center;
        max-width: 280px;
    }

    .course-card {
        padding: 30px 20px;
    }

    .section-title {
        font-size: 2rem;
    }

    .quiz-section {
        padding: 20px;
    }

    .quiz-option {
        padding: 12px;
    }

    .demo-block {
        padding: 12px;
    }

    .step {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .asset-item {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .zk-step {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
}