:root {
    --bg-dark: #0f0f1a;
    --bg-card: #1a1a2e;
    --bg-header: #13132b;
    --accent-orange: #FF6B35;
    --accent-pink: #e94560;
    --accent-blue: #4361ee;
    --text-primary: #ffffff;
    --text-secondary: #b8b8d0;
    --text-muted: #6c6c8a;
    --border-color: #2a2a4a;
    --container-width: 1200px;
}

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

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.7;
}

a {
    color: var(--accent-orange);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-pink);
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 4px;
    font-size: 28px;
    font-weight: 800;
}

.logo-tg {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-viral {
    color: var(--text-primary);
    font-weight: 300;
    letter-spacing: 2px;
}

.tagline {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--bg-header) 0%, #1e1e3f 100%);
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.stats-row {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.stat-box {
    text-align: center;
    padding: 20px 30px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    min-width: 180px;
}

.stat-number {
    font-size: 28px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Category Nav */
.category-nav {
    background: var(--bg-card);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
}

.category-nav .container {
    display: flex;
    gap: 10px;
    flex-wrap: nowrap;
    min-width: max-content;
}

.cat-btn {
    padding: 8px 20px;
    border-radius: 25px;
    background: var(--bg-dark);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    transition: all 0.2s;
}

.cat-btn:hover, .cat-btn.active {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-pink));
    color: white;
    border-color: transparent;
}

.cat-btn.cta {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
}

/* Sections */
main {
    padding: 40px 0;
}

section {
    margin-bottom: 60px;
}

.section-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent-orange);
    display: inline-block;
}

/* Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-orange);
}

.card-badge {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(255,107,53,0.15), rgba(233,69,96,0.15));
    color: var(--accent-orange);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
}

.card-title a {
    color: var(--text-primary);
}

.card-title a:hover {
    color: var(--accent-orange);
}

.card-excerpt {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 15px;
    line-height: 1.6;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

/* Footer */
.site-footer {
    background: var(--bg-header);
    border-top: 1px solid var(--border-color);
    padding: 50px 0 20px;
}

.site-footer .container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 10px;
}

.footer-links h4 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 16px;
}

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

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--accent-orange);
}

.footer-bottom {
    grid-column: 1 / -1;
    text-align: center;
    padding-top: 30px;
    margin-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 13px;
}

.footer-bottom a {
    color: var(--text-secondary);
}

/* Social Links */
.social-links {
    display: flex;
    gap: 16px;
    margin-top: 15px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.social-links a:hover {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-pink));
    border-color: transparent;
    color: #fff;
    transform: translateY(-2px);
}

/* Article Page */
.article-container {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
}

.article-header {
    margin-bottom: 30px;
}

.article-badge {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(255,107,53,0.15), rgba(233,69,96,0.15));
    color: var(--accent-orange);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 15px;
}

.article-title {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.article-meta {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 25px;
}

.article-content h2 {
    font-size: 22px;
    font-weight: 700;
    margin: 30px 0 15px;
    color: var(--accent-orange);
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.article-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 20px 0 10px;
    color: var(--text-primary);
}

.article-content p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 16px;
}

.article-content ul, .article-content ol {
    margin: 15px 0 15px 25px;
    color: var(--text-secondary);
}

.article-content li {
    margin-bottom: 8px;
    font-size: 16px;
}

.article-content strong {
    color: var(--text-primary);
}

.article-content .highlight-box {
    background: var(--bg-card);
    border-left: 4px solid var(--accent-orange);
    padding: 20px;
    margin: 20px 0;
    border-radius: 0 8px 8px 0;
}

.article-content .stat-highlight {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-orange);
    text-align: center;
    margin: 25px 0;
}

.related-links {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.related-links h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.related-links ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 10px;
}

.related-links li a {
    display: block;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.2s;
}

.related-links li a:hover {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
    background: rgba(255,107,53,0.05);
}

.back-link {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 14px;
}

.back-link:hover {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
}

/* Responsive */
@media (max-width: 768px) {
    .site-header .container {
        flex-direction: column;
        align-items: flex-start;
    }
    .stats-row {
        gap: 15px;
    }
    .stat-box {
        min-width: 140px;
        padding: 15px 20px;
    }
    .stat-number {
        font-size: 22px;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
    .site-footer .container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .article-title {
        font-size: 24px;
    }
}