*,:before,:after{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0}*{box-sizing:border-box;margin:0;padding:0}:root{--text:#1a1a1a;--text-muted:#6b7280;--bg:#fff;--border:#e5e7eb;--accent:#111827;--accent-hover:#374151;--subscribe-bg:#f8f9fa;color:var(--text);background:var(--bg);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}[data-theme=dark]{--text:#f3f4f6;--text-muted:#9ca3af;--bg:#0f1117;--border:#1f2937;--accent:#e5e7eb;--accent-hover:#d1d5db;--subscribe-bg:#13181f}[data-theme=dark] body,[data-theme=dark] #root{background:var(--bg);color:var(--text)}[data-theme=dark] .contact-links a:hover{background:#1a2030}body{background:var(--bg);min-height:100vh;color:var(--text);flex-direction:column;transition:background .2s,color .2s;display:flex}#root{flex-direction:column;min-height:100vh;display:flex}nav{z-index:100;background:var(--bg);border-bottom:1px solid var(--border);grid-template-columns:1fr auto 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a{color:var(--text);border:1px solid var(--border);border-radius:8px;justify-content:center;align-items:center;gap:10px;width:100%;max-width:320px;padding:12px 16px;font-size:1rem;font-weight:500;text-decoration:none;transition:border-color .2s,background .2s;display:inline-flex}.contact-links a:hover{border-color:var(--accent);background:#f9fafb}.contact-links svg{flex-shrink:0;width:18px;height:18px}footer{border-top:1px solid var(--border);text-align:center;color:var(--text-muted);padding:24px 48px;font-size:14px}.blog-main{flex:1;width:100%;max-width:960px;margin:0 auto;padding:60px 48px}.blog-header{margin-bottom:48px}.blog-header h1{letter-spacing:-.03em;margin-bottom:24px;font-size:2rem;font-weight:800}.category-filters{flex-wrap:wrap;gap:8px;display:flex}.filter-btn{border:1px solid var(--border);cursor:pointer;color:var(--text-muted);background:0 0;border-radius:20px;padding:5px 16px;font-family:inherit;font-size:14px;transition:border-color .2s,background .2s,color .2s}.filter-btn:hover{border-color:var(--text);color:var(--text)}.filter-btn.active{border-color:var(--text);background:var(--text);color:var(--bg)}.posts-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;display:grid}.post-card{border:1px solid var(--border);color:inherit;border-radius:12px;flex-direction:column;gap:8px;padding:24px;text-decoration:none;transition:border-color .2s,transform .15s;display:flex}.post-card:hover{border-color:var(--accent);transform:translateY(-2px)}.post-category{letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);font-size:11px;font-weight:600}.post-card h2{letter-spacing:-.02em;font-size:1.05rem;font-weight:700;line-height:1.3}.post-excerpt{color:var(--text-muted);flex:1;font-size:.9rem;line-height:1.6}.post-date{color:var(--text-muted);margin-top:4px;font-size:13px}.post-main{flex:1;width:100%;max-width:680px;margin:0 auto;padding:60px 48px}.post-nav-row{justify-content:space-between;align-items:center;margin-bottom:40px;display:flex}.back-link{color:var(--text-muted);font-size:14px;text-decoration:none;transition:color .2s}.back-link:hover{color:var(--text)}.copy-link-btn{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;background:0 0;border-radius:8px;align-items:center;gap:6px;padding:6px 12px;font-family:inherit;font-size:13px;transition:color .2s,border-color .2s;display:inline-flex}.copy-link-btn:hover{color:var(--text);border-color:var(--text)}.copy-link-btn svg{flex-shrink:0;width:14px;height:14px}.post-header{flex-direction:column;gap:10px;margin-bottom:48px;display:flex}.post-author-row{justify-content:space-between;align-items:center;margin-top:4px;display:flex}.post-author-info{align-items:center;gap:10px;display:flex}.post-author-avatar{object-fit:cover;object-position:center top;border-radius:50%;flex-shrink:0;width:36px;height:36px}.post-author-meta{flex-direction:column;gap:2px;font-size:14px;display:flex}.post-author-meta strong{color:var(--text);font-weight:700}.post-author-meta time{color:var(--text-muted);font-size:13px}.post-header h1{letter-spacing:-.03em;font-size:clamp(1.75rem,4vw,2.5rem);font-weight:800;line-height:1.2}.post-content{font-size:1rem;line-height:1.8}.post-content h1,.post-content h2,.post-content h3{letter-spacing:-.02em;margin:36px 0 14px;font-weight:700;line-height:1.3}.post-content h1{font-size:1.5rem}.post-content h2{font-size:1.25rem}.post-content h3{font-size:1.05rem}.post-content p{margin-bottom:20px}.post-content ul,.post-content ol{margin:0 0 20px 24px}.post-content li{margin-bottom:6px}.post-content strong{font-weight:700}.post-content code{background:var(--border);border-radius:4px;padding:2px 6px;font-family:SF Mono,Fira Code,monospace;font-size:.88em}.post-content 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#e5e7eb14}.subscribe-btn{letter-spacing:-.01em;background:var(--accent);color:var(--bg);border:1px solid var(--accent);cursor:pointer;white-space:nowrap;border-radius:8px;padding:11px 22px;font-family:inherit;font-size:14px;font-weight:600;transition:background .2s,border-color .2s,opacity .2s}.subscribe-btn:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}.subscribe-btn:disabled{opacity:.5;cursor:not-allowed}.subscribe-feedback{color:var(--text-muted);margin-top:14px;font-size:14px;line-height:1.5}.subscribe-feedback.error{color:#ef4444}@media (width<=768px){nav{padding:12px 24px}.blog-main,.post-main{padding:48px 24px}.subscribe-section{padding:36px 32px}}@media (width<=640px){nav{padding:10px 16px}.nav-center{gap:16px}.nav-link{font-size:14px}#hero{gap:16px;padding:60px 16px}.tagline{font-size:1rem}#contact{padding:52px 16px}.blog-main,.post-main{padding:32px 16px}.blog-header{margin-bottom:32px}.blog-header h1{margin-bottom:16px;font-size:1.75rem}.posts-grid{grid-template-columns:1fr;gap:12px}.post-nav-row{margin-bottom:28px}.post-header{margin-bottom:32px}.post-author-row{flex-wrap:wrap;gap:8px}.subscribe-section{border-radius:12px;margin-top:56px;padding:28px 20px}.subscribe-form{flex-direction:column;max-width:100%}.subscribe-btn{width:100%}footer{padding:20px 16px}}