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

body {
    font-family: 'Courier New', monospace;
    background-color: #FFFFFF;
    color: #17191b;
    line-height: 1.6;
}

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

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 2px solid #313c48;
}

.logo-container {
    flex: 1;
}

.security-badge {
    background: #17191b;
    padding: 8px 16px;
    border-radius: 4px;
}

.pgp-verified {
    color: #FFFFFF;
    font-weight: bold;
    font-size: 12px;
    letter-spacing: 1px;
}

.hero {
    text-align: center;
    padding: 60px 0;
    border-bottom: 1px solid #313c48;
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: #313c48;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: #17191b;
}

.stat-label {
    font-size: 0.9rem;
    color: #313c48;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.market-overview, .security-protocols, .monero-integration, .vendor-program, .support-system {
    padding: 60px 0;
    border-bottom: 1px solid #313c48;
}

.market-overview h2, .security-protocols h2, .monero-integration h2, .vendor-program h2, .support-system h2 {
    text-align: center;
    margin-bottom: 40px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.overview-content, .protocols-content, .monero-content, .vendor-content, .support-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.overview-content p, .protocols-content p, .monero-content p, .vendor-content p, .support-content p {
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.feature-highlights, .protocol-details, .monero-benefits, .vendor-features, .support-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.highlight-item, .protocol-item, .benefit, .vendor-feature, .support-feature {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
    text-align: left;
}

.highlight-item h3, .protocol-item h3, .benefit h4, .vendor-feature h4, .support-feature h4 {
    margin-bottom: 15px;
    color: #17191b;
}

.features {
    padding: 60px 0;
    border-bottom: 1px solid #313c48;
}

.features h2 {
    text-align: center;
    margin-bottom: 40px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

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

.feature-card {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.feature-card:hover {
    background: #313c48;
    color: #FFFFFF;
    transform: translateY(-5px);
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.links-section {
    padding: 60px 0;
    border-bottom: 1px solid #313c48;
}

.links-section h2 {
    text-align: center;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.section-description {
    text-align: center;
    margin-bottom: 40px;
    color: #313c48;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.links-container {
    max-width: 600px;
    margin: 0 auto;
}

.link-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8f9fa;
    padding: 15px 20px;
    margin-bottom: 15px;
    border-radius: 6px;
    border: 1px solid #e9ecef;
}

.link-text {
    word-break: break-all;
    font-family: monospace;
    color: #17191b;
}

.copy-btn {
    background: #17191b;
    color: #FFFFFF;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: background 0.3s ease;
}

.copy-btn:hover {
    background: #313c48;
}

.validator-section {
    padding: 60px 0;
    border-bottom: 1px solid #313c48;
}

.validator-section h2 {
    text-align: center;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

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

#linkInput {
    width: 100%;
    padding: 15px;
    border: 2px solid #17191b;
    border-radius: 6px;
    margin-bottom: 20px;
    font-family: monospace;
    background: #f8f9fa;
}

.validator-container button {
    background: #17191b;
    color: #FFFFFF;
    border: none;
    padding: 15px 30px;
    border-radius: 6px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: bold;
    transition: background 0.3s ease;
}

.validator-container button:hover {
    background: #313c48;
}

.validation-result {
    margin-top: 20px;
    padding: 15px;
    border-radius: 6px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.validation-result.valid {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.validation-result.invalid {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

footer {
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    margin-bottom: 20px;
    color: #17191b;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.footer-section ul li {
    margin-bottom: 10px;
    color: #313c48;
}

.copyright {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid #313c48;
    color: #313c48;
    font-size: 0.9rem;
}

.copy-feedback {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #17191b;
    color: #FFFFFF;
    padding: 15px 25px;
    border-radius: 6px;
    z-index: 1000;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

@media (max-width: 768px) {
    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .link-item {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .feature-highlights, .protocol-details, .monero-benefits, .vendor-features, .support-features {
        grid-template-columns: 1fr;
    }
}