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

body {
    background-color: #FFFFFF;
    color: #17191b;
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    position: relative;
    min-height: 100vh;
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 600;
    src: url(https://fonts.gstatic.com/s/inter/v12/UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuLyfAZ9hiA.woff2) format('woff2');
    font-display: swap;
}

@font-face {
    font-family: 'SF Mono';
    font-style: normal;
    font-weight: 400;
    src: local('SF Mono'), local('Menlo'), local('Consolas'), local('Courier New'), monospace;
    font-display: swap;
}

.gradient-sphere {
    position: fixed;
    top: -50vh;
    right: -10vw;
    width: 80vw;
    height: 80vh;
    background: radial-gradient(circle at 70% 30%, rgba(49, 60, 72, 0.02) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
    will-change: transform;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3.5rem;
    gap: 1.5rem;
}

.logo-wrapper {
    background: #FFFFFF;
    padding: 0.5rem 0;
}

.logo {
    display: block;
    max-width: 100%;
    height: auto;
    width: 413px;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #f8fafc;
    padding: 0.6rem 1.2rem;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #17191b;
    border: 1px solid #eaeef2;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.dot {
    width: 8px;
    height: 8px;
    background: #00a859;
    border-radius: 50%;
    display: inline-block;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.1); }
    100% { opacity: 1; transform: scale(1); }
}

.grid-system {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.8rem;
    margin-bottom: 3.5rem;
}

.grid-item {
    background: #FFFFFF;
    border: 1px solid #edf2f7;
    border-radius: 2rem;
    padding: 2rem 1.8rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.02);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    will-change: border-color, box-shadow;
}

.grid-item:hover {
    border-color: #313c48;
    box-shadow: 0 16px 32px rgba(49, 60, 72, 0.04);
}

.hero-block {
    grid-column: span 2;
}

.links-block {
    grid-column: span 2;
}

.features-block {
    grid-column: span 3;
}

.verification-block {
    grid-column: span 2;
}

.products-block {
    grid-column: span 2;
}

.guide-block {
    grid-column: span 2;
}

.stats-block {
    grid-column: span 1;
}

.rules-block {
    grid-column: span 1;
}

.seo-rich-block {
    grid-column: span 3;
}

.faq-block {
    grid-column: span 2;
}

.comparison-block {
    grid-column: span 2;
}

.news-block {
    grid-column: span 2;
}

.resources-block {
    grid-column: span 1;
}

.glossary-block {
    grid-column: span 1;
}

.warning-block {
    grid-column: span 4;
    background: #fff9f0;
    border-color: #ffd7a8;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.main-heading {
    font-size: clamp(2rem, 4vw, 2.6rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #17191b;
}

.heading-accent {
    background: #f0f3f7;
    padding: 0.2rem 1rem;
    border-radius: 100px;
    font-size: 1.2rem;
    font-weight: 500;
    display: inline-block;
    vertical-align: middle;
    margin-left: 0.5rem;
}

.lead-text {
    font-size: 1.15rem;
    color: #3a4a57;
    margin-bottom: 2rem;
    max-width: 90%;
}

.stats-mini {
    display: flex;
    gap: 2.5rem;
    border-top: 1px dashed #d9e1e8;
    padding-top: 1.5rem;
    flex-wrap: wrap;
}

.stat-mini-item {
    display: flex;
    flex-direction: column;
}

.stat-mini-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: #17191b;
    line-height: 1.3;
}

.stat-mini-label {
    font-size: 0.75rem;
    color: #6b7b8b;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.block-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.block-header h2 {
    font-size: 1.4rem;
    font-weight: 500;
    color: #17191b;
}

.header-extra {
    font-size: 0.75rem;
    background: #17191b;
    color: white;
    padding: 0.25rem 0.8rem;
    border-radius: 100px;
    opacity: 0.85;
    font-weight: 500;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.links-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.link-card {
    background: #f9fbfd;
    border: 1px solid #e2eaf0;
    border-radius: 1.2rem;
    padding: 1rem 1.2rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.link-card:hover {
    background: #FFFFFF;
    border-color: #313c48;
}

.link-url {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.9rem;
    word-break: break-all;
    color: #17191b;
    cursor: pointer;
    flex: 1;
    margin-right: 1rem;
    padding: 0.25rem 0;
    line-height: 1.4;
}

.link-meta {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.link-latency {
    font-size: 0.75rem;
    color: #5f6f7e;
    background: #edf3f8;
    padding: 0.3rem 0.8rem;
    border-radius: 100px;
    white-space: nowrap;
    font-weight: 500;
}

.copy-btn {
    background: #FFFFFF;
    width: 2.2rem;
    height: 2.2rem;
    border: 1px solid #d9e2ea;
    border-radius: 2.2rem;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.copy-btn::after {
    content: "";
    width: 1rem;
    height: 1rem;
    background: #17191b;
    mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"></rect><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"></path></svg>');
    mask-size: contain;
    mask-repeat: no-repeat;
    -webkit-mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"></rect><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"></path></svg>');
    -webkit-mask-size: contain;
    -webkit-mask-repeat: no-repeat;
}

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

.copy-btn:hover::after {
    background: #FFFFFF;
}

.block-footer {
    font-size: 0.7rem;
    color: #8fa0af;
    margin-top: 1rem;
    text-align: right;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.2rem;
    margin-top: 1.2rem;
}

.feature-card {
    background: #f9fbfd;
    padding: 1.5rem;
    border-radius: 1.5rem;
    border: 1px solid #e9f0f5;
    transition: transform 0.15s ease;
    will-change: transform;
}

.feature-card:hover {
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 1.8rem;
    margin-bottom: 0.8rem;
    line-height: 1;
}

.feature-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: #17191b;
}

.feature-card p {
    font-size: 0.85rem;
    color: #3f505e;
    line-height: 1.5;
}

.verification-block h2 {
    font-size: 1.4rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.verification-note {
    color: #3a4a57;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.input-group {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.verification-input {
    flex: 1;
    min-width: 200px;
    padding: 0.85rem 1.2rem;
    border: 1px solid #d9e2ea;
    border-radius: 3rem;
    font-size: 0.95rem;
    background: #FFFFFF;
    transition: border 0.15s ease, box-shadow 0.15s ease;
}

.verification-input:focus {
    outline: none;
    border-color: #313c48;
    box-shadow: 0 0 0 3px rgba(49, 60, 72, 0.1);
}

.verification-btn {
    background: #17191b;
    color: white;
    border: none;
    border-radius: 3rem;
    padding: 0.85rem 2rem;
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.15s ease;
    white-space: nowrap;
}

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

.verification-tip {
    margin-top: 1.5rem;
    padding: 0.8rem 1.2rem;
    background: #f0f7ff;
    border-radius: 1rem;
    font-size: 0.85rem;
    color: #1a4d8c;
    border: 1px solid #cde0ff;
}

.verification-stats {
    display: flex;
    gap: 2rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px dashed #d9e1e8;
}

.verification-stat-item {
    display: flex;
    flex-direction: column;
}

.verification-stat-value {
    font-size: 1.2rem;
    font-weight: 600;
    color: #17191b;
}

.verification-stat-label {
    font-size: 0.7rem;
    color: #6b7b8b;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.category-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin: 1.2rem 0;
}

.category-tag {
    background: #f4f8fc;
    padding: 0.5rem 1.2rem;
    border-radius: 3rem;
    font-size: 0.85rem;
    color: #17191b;
    border: 1px solid #dee7ef;
    transition: all 0.15s ease;
    font-weight: 450;
}

.category-tag:hover {
    background: #313c48;
    color: white;
    border-color: #313c48;
}

.products-note {
    color: #3f505e;
    font-size: 0.9rem;
    margin-top: 0.8rem;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin-top: 1.2rem;
}

.step {
    display: flex;
    gap: 1.2rem;
    align-items: flex-start;
}

.step-number {
    width: 2rem;
    height: 2rem;
    background: #17191b;
    color: white;
    border-radius: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
    color: #17191b;
}

.step-content p {
    font-size: 0.85rem;
    color: #3f505e;
    line-height: 1.5;
}

.stats-grid {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-top: 1.2rem;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px dashed #e3eaf0;
}

.stat-row:last-child {
    border-bottom: none;
}

.stat-label {
    color: #5f707f;
    font-size: 0.85rem;
}

.stat-value {
    font-weight: 600;
    color: #17191b;
    font-size: 0.95rem;
}

.stat-value.online {
    color: #00a859;
}

.rules-list {
    list-style: none;
    margin-top: 1.2rem;
}

.rules-list li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    color: #2a3b48;
    font-size: 0.9rem;
    line-height: 1.5;
}

.rules-list li::before {
    content: "";
    position: absolute;
    left: 0.2rem;
    top: 0.6rem;
    width: 0.4rem;
    height: 0.4rem;
    background: #313c48;
    border-radius: 1rem;
}

.seo-rich-block h2 {
    font-size: 1.6rem;
    font-weight: 500;
    margin: 0 0 1.2rem 0;
    color: #17191b;
}

.seo-rich-block h3 {
    font-size: 1.2rem;
    font-weight: 500;
    margin: 1.8rem 0 0.8rem 0;
    color: #1f2c38;
}

.seo-rich-block p {
    margin-bottom: 1rem;
    color: #2f404f;
    font-size: 0.95rem;
    line-height: 1.6;
}

.faq-item {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #ecf2f7;
}

.faq-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.faq-item h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: #17191b;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.faq-item h3::before {
    content: "?";
    width: 1.2rem;
    height: 1.2rem;
    background: #edf3f8;
    border-radius: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 600;
    color: #313c48;
}

.faq-answer {
    color: #3f505e;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-left: 1.6rem;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
    margin-top: 1.2rem;
}

.comparison-item {
    background: #f9fbfd;
    padding: 1.2rem;
    border-radius: 1.2rem;
    border: 1px solid #e9f0f5;
}

.comparison-item h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #17191b;
}

.comparison-item p {
    font-size: 0.85rem;
    color: #3f505e;
    line-height: 1.5;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.2rem;
}

.news-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding-bottom: 1rem;
    border-bottom: 1px dashed #e3eaf0;
}

.news-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.news-date {
    font-size: 0.7rem;
    color: #7f8f9f;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.news-title {
    font-size: 0.9rem;
    color: #1f2c38;
    line-height: 1.4;
}

.resources-list {
    list-style: none;
    margin-top: 1.2rem;
}

.resources-list li {
    margin-bottom: 0.8rem;
}

.resource-link {
    color: #1f2c38;
    text-decoration: none;
    font-size: 0.9rem;
    display: inline-block;
    padding: 0.2rem 0;
    border-bottom: 1px dashed #cbd5e0;
    transition: border-color 0.15s ease;
}

.resource-link:hover {
    border-bottom-color: #313c48;
    color: #17191b;
}

.glossary-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.2rem;
}

.glossary-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.glossary-term {
    font-weight: 600;
    font-size: 0.9rem;
    color: #17191b;
}

.glossary-definition {
    font-size: 0.8rem;
    color: #4f5f6f;
    line-height: 1.4;
}

.warning-icon {
    font-size: 2rem;
    line-height: 1;
    flex-shrink: 0;
}

.warning-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: #b45b0a;
}

.warning-content p {
    color: #5a3e1a;
    font-size: 0.9rem;
    line-height: 1.5;
}

.footer {
    text-align: center;
    padding: 2.5rem 0 1.5rem;
    border-top: 1px solid #edf2f7;
    color: #607080;
}

.footer-links {
    margin-bottom: 1rem;
    font-size: 0.75rem;
    word-break: break-word;
    line-height: 1.8;
    opacity: 0.7;
}

.footer-links span {
    display: inline-block;
    margin: 0 0.2rem;
}

.copyright {
    font-size: 0.75rem;
    opacity: 0.6;
}

@media (max-width: 900px) {
    .grid-system {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2rem;
    }
    
    .container {
        padding: 1.5rem 1.2rem;
    }
    
    .main-heading {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .grid-system {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .grid-item {
        grid-column: span 1 !important;
        padding: 1.5rem 1.2rem;
        border-radius: 1.5rem;
    }
    
    .header {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 2rem;
    }
    
    .stats-mini {
        gap: 1.2rem;
    }
    
    .lead-text {
        max-width: 100%;
        font-size: 1rem;
    }
    
    .heading-accent {
        font-size: 1rem;
        margin-left: 0;
        margin-top: 0.5rem;
    }
    
    .link-card {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .link-meta {
        width: 100%;
        justify-content: space-between;
        margin-top: 0.6rem;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .verification-btn {
        width: 100%;
    }
    
    .verification-stats {
        gap: 1rem;
        flex-wrap: wrap;
    }
    
    .warning-block {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .warning-icon {
        font-size: 1.8rem;
    }
    
    .feature-card {
        padding: 1.2rem;
    }
    
    .step {
        gap: 0.8rem;
    }
    
    .step-number {
        width: 1.8rem;
        height: 1.8rem;
        font-size: 0.8rem;
    }
    
    .category-tag {
        padding: 0.4rem 1rem;
        font-size: 0.8rem;
    }
    
    .footer-links {
        font-size: 0.7rem;
    }
}

@media (max-width: 380px) {
    .block-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-extra {
        white-space: normal;
    }
    
    .stats-mini {
        flex-direction: column;
        gap: 0.8rem;
    }
}

.notification {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    background: #00a859;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 3rem;
    z-index: 10000;
    transform: translateX(150%);
    transition: transform 0.25s cubic-bezier(0.2, 0, 0, 1);
    font-weight: 500;
    font-size: 0.9rem;
    box-shadow: 0 8px 24px rgba(0, 168, 89, 0.2);
    border: 1px solid rgba(255,255,255,0.2);
    pointer-events: none;
    max-width: 90%;
    word-break: break-word;
}

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

.validation-result {
    margin-top: 1.2rem;
    padding: 0.9rem 1.2rem;
    border-radius: 3rem;
    font-size: 0.9rem;
    transition: all 0.15s ease;
    display: none;
    word-break: break-word;
}

.validation-result.success {
    display: block;
    background: rgba(0, 168, 89, 0.04);
    border: 1px solid #00a859;
    color: #00663a;
}

.validation-result.error {
    display: block;
    background: rgba(255, 51, 102, 0.04);
    border: 1px solid #ff3366;
    color: #b30035;
}

strong {
    font-weight: 600;
    color: #17191b;
}

h2, h3 {
    line-height: 1.3;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: #313c48;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

button {
    cursor: pointer;
    font-family: inherit;
}

input, button {
    font-size: 1rem;
}

::-moz-selection {
    background: #313c48;
    color: white;
}

::selection {
    background: #313c48;
    color: white;
}