:root{--primary: #6366f1;--primary-dark: #4f46e5;--secondary: #06b6d4;--accent: #f59e0b;--gray-50: #f8fafc;--gray-100: #f1f5f9;--gray-200: #e2e8f0;--gray-300: #cbd5e1;--gray-400: #94a3b8;--gray-500: #64748b;--gray-600: #475569;--gray-700: #334155;--gray-800: #1e293b;--gray-900: #0f172a;--bg-primary: #ffffff;--bg-secondary: #f8fafc;--bg-tertiary: #f1f5f9;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6;font-weight:400;color:var(--text-primary);background-color:var(--bg-primary);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-primary) 100%);min-height:100vh}a{color:var(--primary);text-decoration:none;transition:all .2s ease}a:hover{color:var(--primary-dark);text-decoration:none}h1,h2,h3,h4,h5,h6{margin-top:0;line-height:1.3;font-weight:600;color:var(--text-primary)}h1{font-size:clamp(2rem,5vw,3rem);font-weight:700;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}h2{font-size:clamp(1.5rem,4vw,2.25rem);margin-bottom:1.5rem}h3{font-size:clamp(1.25rem,3vw,1.75rem)}p{margin:0 0 1rem;color:var(--text-secondary);line-height:1.7}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--gray-300);border-radius:var(--radius-lg)}::-webkit-scrollbar-thumb:hover{background:var(--gray-400)}.app{min-height:100vh;display:flex;flex-direction:column}.header{background:#fffffff2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.2);color:var(--text-primary);padding:1.25rem 0;position:sticky;top:0;z-index:100;box-shadow:var(--shadow-sm)}.header .container{max-width:1200px;margin:0 auto;padding:0 1.5rem;display:flex;justify-content:space-between;align-items:center}.logo{text-decoration:none;color:var(--text-primary);transition:transform .2s ease}.logo:hover{transform:scale(1.02)}.logo h1{margin:0;font-size:clamp(1.25rem,3vw,1.75rem);font-weight:700;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header nav{display:flex;gap:.5rem;align-items:center}.header nav a{color:var(--text-secondary);text-decoration:none;padding:.75rem 1.25rem;border-radius:var(--radius-lg);font-weight:500;transition:all .2s ease;position:relative;overflow:hidden}.header nav a:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(99,102,241,.1),transparent);transition:left .5s ease}.header nav a:hover:before{left:100%}.header nav a:hover{color:var(--primary);background:#6366f10d;transform:translateY(-1px)}.container{max-width:1200px;margin:0 auto;padding:3rem 1.5rem;flex:1}.articles-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2rem;margin-top:2.5rem}.article-card{background:#fffc;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-xl);padding:2rem;box-shadow:var(--shadow-lg);transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.article-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--secondary),var(--accent));opacity:0;transition:opacity .3s ease}.article-card:hover{transform:translateY(-8px) scale(1.02);box-shadow:var(--shadow-xl);border-color:#6366f14d}.article-card:hover:before{opacity:1}.article-card h3{margin-top:0;margin-bottom:1rem;font-size:1.25rem;line-height:1.4}.article-card h3 a{text-decoration:none;color:var(--text-primary);transition:color .2s ease}.article-card h3 a:hover{color:var(--primary)}.excerpt{color:var(--text-secondary);line-height:1.6;margin:1.25rem 0;font-size:.95rem}.article-meta{display:flex;flex-wrap:wrap;gap:1rem;font-size:.875rem;color:var(--text-muted);margin-top:1.5rem;padding-top:1rem;border-top:1px solid rgba(0,0,0,.05)}.article-meta span{display:flex;align-items:center;gap:.25rem}.article-meta span:before{content:"•";color:var(--gray-300);margin-right:.5rem}.article-meta span:first-child:before{display:none}.article-detail{max-width:800px;background:#ffffffe6;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-xl);padding:3rem;box-shadow:var(--shadow-lg)}.article-detail h2{color:var(--text-primary);margin-bottom:1.5rem;font-size:clamp(1.75rem,4vw,2.5rem)}.article-content{line-height:1.8;margin:2.5rem 0;font-size:1.1rem}.article-content p{margin-bottom:1.5rem;color:var(--text-secondary)}.article-content p:last-child{margin-bottom:0}.back-link{display:inline-flex;align-items:center;gap:.5rem;color:var(--primary);text-decoration:none;margin-top:2.5rem;padding:.75rem 1.5rem;border-radius:var(--radius-lg);background:#6366f10d;border:1px solid rgba(99,102,241,.1);font-weight:500;transition:all .2s ease}.back-link:hover{background:#6366f11a;border-color:#6366f133;transform:translate(-2px)}.back-link:before{content:"←";font-size:1.1em}@media(max-width:768px){.header .container{padding:0 1rem}.header nav{gap:.25rem}.header nav a{padding:.5rem .75rem;font-size:.9rem}.container{padding:2rem 1rem}.articles-grid{grid-template-columns:1fr;gap:1.5rem;margin-top:2rem}.article-card{padding:1.5rem}.article-detail{padding:2rem 1.5rem}}@media(max-width:480px){.article-meta{flex-direction:column;gap:.5rem}.article-meta span{font-size:.8rem}}.about-content{max-width:900px;margin:0 auto}.about-section{margin-bottom:3rem}.about-section h3{color:var(--primary);margin-bottom:1.5rem;font-size:1.5rem;position:relative}.about-section h3:after{content:"";position:absolute;bottom:-8px;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:var(--radius-sm)}.topics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-top:2rem}.topic-card{background:#fffc;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-md);transition:all .3s ease}.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#6366f133}.topic-card h4{margin:0 0 1rem;color:var(--text-primary);font-size:1.1rem;font-weight:600}.topic-card p{margin:0;color:var(--text-secondary);line-height:1.6;font-size:.95rem}.contact-info{background:linear-gradient(135deg,#6366f10d,#06b6d40d);border:1px solid rgba(99,102,241,.1);border-radius:var(--radius-lg);padding:2rem;margin-top:1.5rem}.contact-info p{margin-bottom:.5rem}.contact-info p:last-child{margin-bottom:0}@keyframes shimmer{0%{background-position:-200px 0}to{background-position:calc(200px + 100%) 0}}.article-card.loading{background:linear-gradient(90deg,var(--gray-100) 25%,var(--gray-200) 50%,var(--gray-100) 75%);background-size:200px 100%;animation:shimmer 1.5s infinite}