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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #FFFFFF;
    color: #17191b;
    line-height: 1.6;
}

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

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 0;
    border-bottom: 2px solid #313c48;
    flex-wrap: wrap;
    gap: 20px;
}

.logo-container {
    flex-shrink: 0;
}

.main-nav {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.main-nav a {
    text-decoration: none;
    color: #17191b;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 8px 16px;
    border-radius: 6px;
}

.main-nav a:hover {
    color: #313c48;
    background: #f8f9fa;
}

.security-badge {
    background: #17191b;
    color: #FFFFFF;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 1px;
}

.hero {
    text-align: center;
    padding: 80px 0;
}

.hero-title {
    font-size: 3rem;
    font-weight: 300;
    letter-spacing: 2px;
    margin-bottom: 20px;
    color: #17191b;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: #666;
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.stat-item {
    text-align: center;
    min-width: 120px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: #313c48;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-description {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    color: #666;
    font-size: 1.1rem;
    line-height: 1.7;
}

.link-validator {
    background: #f8f9fa;
    padding: 60px 40px;
    border-radius: 15px;
    margin: 60px 0;
    text-align: center;
}

.link-validator h2 {
    margin-bottom: 15px;
    color: #17191b;
    font-size: 2.2rem;
}

.validator-description {
    color: #666;
    margin-bottom: 35px;
    font-size: 1.1rem;
    line-height: 1.7;
}

.validator-container {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    gap: 15px;
}

#linkInput {
    flex: 1;
    padding: 15px 25px;
    border: 2px solid #313c48;
    border-radius: 10px;
    font-size: 16px;
    background: #FFFFFF;
}

#validateBtn {
    padding: 15px 35px;
    background: #17191b;
    color: #FFFFFF;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s ease;
    white-space: nowrap;
}

#validateBtn:hover {
    background: #313c48;
}

.validation-result {
    margin-top: 25px;
    padding: 20px;
    border-radius: 10px;
    font-weight: bold;
    display: none;
    font-size: 1.1rem;
}

.validation-result.valid {
    background: #d4edda;
    color: #155724;
    display: block;
}

.validation-result.invalid {
    background: #f8d7da;
    color: #721c24;
    display: block;
}

.mirrors {
    margin: 80px 0;
}

.mirrors h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #17191b;
    font-size: 2.2rem;
}

.mirrors-grid {
    display: grid;
    gap: 25px;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.mirror-card {
    background: #f8f9fa;
    border: 2px solid #313c48;
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s ease;
}

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

.mirror-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.mirror-badge {
    background: #17191b;
    color: #FFFFFF;
    padding: 6px 15px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: bold;
}

.status-indicator {
    font-size: 12px;
    font-weight: bold;
    padding: 5px 12px;
    border-radius: 10px;
}

.status-indicator.online {
    background: #d4edda;
    color: #155724;
}

.mirror-link {
    word-break: break-all;
    font-family: monospace;
    margin: 20px 0;
    padding: 15px;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s ease;
    font-size: 14px;
    line-height: 1.4;
}

.mirror-link:hover {
    background: rgba(255,255,255,0.2);
}

.copy-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid currentColor;
    border-radius: 8px;
    color: inherit;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.copy-btn:hover {
    background: #FFFFFF;
    color: #17191b;
}

.market-overview, .technology {
    margin: 60px 0;
    padding: 50px;
    background: #f8f9fa;
    border-radius: 15px;
}

.market-overview h2, .technology h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #17191b;
    font-size: 2.2rem;
}

.market-overview h3, .technology h3 {
    margin: 30px 0 15px;
    color: #313c48;
}

.market-overview p, .technology p {
    margin-bottom: 20px;
    line-height: 1.7;
    color: #555;
}

.features {
    margin: 80px 0;
}

.features h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #17191b;
    font-size: 2.2rem;
}

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

.feature-card {
    padding: 35px;
    background: #f8f9fa;
    border-radius: 12px;
    transition: transform 0.3s ease;
    border: 1px solid #e9ecef;
}

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

.feature-card h3 {
    color: #17191b;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.feature-card p {
    color: #666;
    line-height: 1.7;
}

.security {
    margin: 80px 0;
}

.security h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #17191b;
    font-size: 2.2rem;
}

.security-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
    max-width: 800px;
    margin: 0 auto;
}

.security-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.security-item:hover {
    transform: translateX(10px);
}

.security-item.mandatory {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
}

.security-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.security-item strong {
    display: block;
    margin-bottom: 8px;
    color: #17191b;
    font-size: 1.1rem;
}

.security-item p {
    color: #666;
    line-height: 1.6;
}

.guide {
    margin: 80px 0;
}

.guide h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #17191b;
    font-size: 2.2rem;
}

.guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.step {
    padding: 30px;
    background: #f8f9fa;
    border-radius: 12px;
    border-left: 4px solid #313c48;
}

.step h3 {
    color: #17191b;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.step p {
    color: #666;
    line-height: 1.7;
}

.faq {
    margin: 80px 0;
}

.faq h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #17191b;
    font-size: 2.2rem;
}

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

.faq-item {
    padding: 30px;
    background: #f8f9fa;
    border-radius: 12px;
}

.faq-item h3 {
    color: #17191b;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.faq-item p {
    color: #666;
    line-height: 1.7;
}

footer {
    border-top: 2px solid #313c48;
    padding: 60px 0 30px;
    background: #f8f9fa;
}

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

.footer-section h4 {
    margin-bottom: 15px;
    color: #17191b;
}

.footer-section p {
    margin-bottom: 8px;
    color: #666;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #dee2e6;
}

.footer-bottom p {
    margin-bottom: 10px;
    color: #666;
}

.disclaimer {
    font-size: 0.9rem;
    color: #999;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }
    
    .validator-container {
        flex-direction: column;
    }
    
    .main-nav {
        justify-content: center;
    }
    
    header {
        flex-direction: column;
        text-align: center;
    }
    
    .market-overview, .technology {
        padding: 30px 20px;
    }
    
    .feature-grid, .faq-grid {
        grid-template-columns: 1fr;
    }
}