:root{--primary-gradient:linear-gradient(135deg,#667eea,#764ba2);--secondary-gradient:linear-gradient(135deg,#f093fb,#f5576c);--success-gradient:linear-gradient(135deg,#4facfe,#00f2fe);--dark-bg:#0a0e27;--dark-card:#131829;--glass-bg:hsla(0,0%,100%,.05);--glass-border:hsla(0,0%,100%,.1);--text-primary:#1a202c;--text-secondary:#718096;--shadow-lg:0 20px 60px rgba(0,0,0,.15);--shadow-xl:0 25px 80px rgba(0,0,0,.2)}*{box-sizing:border-box;padding:0;margin:0}html{font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f8f9fa;color:var(--text-primary);overflow-x:hidden}.main-content{padding-top:80px;min-height:100vh}.reading-progress{position:fixed;top:0;left:0;height:3px;background:var(--primary-gradient);width:0;z-index:9999;transition:width .1s ease;box-shadow:0 0 10px rgba(102,126,234,.5)}.navbar-glass{background:hsla(0,0%,100%,.8);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid hsla(0,0%,100%,.2);transition:all .3s ease;box-shadow:0 4px 30px rgba(0,0,0,.05)}.navbar-glass.scrolled{background:hsla(0,0%,100%,.95);box-shadow:0 4px 30px rgba(0,0,0,.1)}.brand-icon{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;color:#fff;font-size:1.2rem;box-shadow:0 4px 15px rgba(102,126,234,.3)}.brand-icon,.brand-text{background:var(--primary-gradient)}.brand-text{font-size:1.25rem;font-weight:700;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-link-modern{padding:8px 16px!important;border-radius:10px;font-weight:500;color:var(--text-secondary)!important;transition:all .3s ease;position:relative}.nav-link-modern:hover{color:var(--text-primary)!important;background:rgba(102,126,234,.08);transform:translateY(-2px)}.nav-link-modern:after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:2px;background:var(--primary-gradient);transition:width .3s ease}.nav-link-modern:hover:after{width:60%}.hero-section{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:120px 0 80px;margin-bottom:0;position:relative;overflow:hidden}.hero-section:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 50%,hsla(0,0%,100%,.1) 0,transparent 50%),radial-gradient(circle at 80% 80%,hsla(0,0%,100%,.1) 0,transparent 50%);pointer-events:none}.hero-section>.container{position:relative;z-index:1}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background:hsla(0,0%,100%,.15);border:1px solid hsla(0,0%,100%,.2);border-radius:50px;font-size:14px;font-weight:500;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);animation:fadeInDown .6s ease}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.hero-title{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;line-height:1.2;margin-bottom:1.5rem;animation:fadeInUp .6s ease .2s both}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.gradient-text{background:linear-gradient(135deg,#ffd89b,#19547b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:inline-block}.hero-subtitle{font-size:1.25rem;opacity:.95;max-width:600px;line-height:1.6;animation:fadeInUp .6s ease .4s both}.hero-search{max-width:650px;animation:fadeInUp .6s ease .6s both}.search-input-wrapper{display:flex;align-items:center;background:#fff;border-radius:16px;padding:6px 6px 6px 24px;box-shadow:0 20px 60px rgba(0,0,0,.3);transition:all .3s ease}.search-input-wrapper:hover{box-shadow:0 25px 70px rgba(0,0,0,.4);transform:translateY(-2px)}.search-input-wrapper i{color:#9ca3af;margin-right:12px;font-size:1.2rem}.search-input-wrapper input{flex:1 1;border:none;outline:none;font-size:16px;color:#1f2937;background:transparent}.search-input-wrapper button{border-radius:12px;padding:14px 28px;font-weight:600;white-space:nowrap;background:var(--primary-gradient);border:none;color:#fff;transition:all .3s ease}.search-input-wrapper button:hover{transform:translateX(2px);box-shadow:0 8px 20px rgba(102,126,234,.4)}.popular-searches{gap:8px}.popular-searches .badge{padding:6px 12px;border-radius:12px;transition:all .2s}.popular-searches .badge:hover{transform:translateY(-2px);box-shadow:0 4px 8px rgba(0,0,0,.1)}.stats-section{background:#f8f9fa;border-radius:20px;margin:-40px auto 60px;padding:40px}.stat-icon{color:var(--primary-color)}.stat-number{font-size:2.5rem;font-weight:700;color:#212529}.stat-label{color:#6c757d}.category-card{border-radius:16px;transition:all .3s;box-shadow:0 2px 8px rgba(0,0,0,.08)}.category-card:hover{transform:translateY(-8px);box-shadow:0 12px 24px rgba(0,0,0,.15)}.category-card .card-header{background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.category-icon{font-size:2rem;margin-bottom:8px}.category-card .card-body{padding:20px}.article-item{padding:12px 0;border-bottom:1px solid #e9ecef;transition:all .2s}.article-item:hover{background:#f8f9fa;padding-left:8px}.article-item a{color:#212529;gap:8px}.article-item a:hover{color:var(--primary-color)}.article-header{background:linear-gradient(135deg,#667eea,#764ba2);padding:60px 0;margin-bottom:40px}.article-content h2{margin-top:40px;margin-bottom:20px;font-weight:700;color:#212529}.article-content h3{margin-top:32px;margin-bottom:16px;font-weight:600;color:#495057}.article-content p{margin-bottom:20px;line-height:1.8;color:#495057;font-size:1.1rem}.article-content ol,.article-content ul{margin-bottom:20px;padding-left:24px}.article-content li{margin-bottom:12px}.article-meta{gap:20px;color:hsla(0,0%,100%,.8);margin-top:16px}.breadcrumb{margin-bottom:20px}.breadcrumb-item a{color:hsla(0,0%,100%,.8)}@media (max-width:768px){.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1rem}.stat-number{font-size:2rem}.stats-section{margin:-20px 20px 40px;padding:20px}}html{scroll-behavior:smooth}.popular-searches{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:1rem}.popular-searches .badge{padding:8px 16px;border-radius:50px;cursor:pointer;transition:all .3s ease;background:hsla(0,0%,100%,.9)!important;color:var(--text-primary)!important;border:1px solid rgba(102,126,234,.2)}.popular-searches .badge:hover{transform:translateY(-3px);box-shadow:0 6px 20px 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ease;border-radius:16px}.stat-card:hover{transform:translateY(-5px);background:linear-gradient(135deg,rgba(102,126,234,.05),rgba(118,75,162,.05))}.stat-icon{font-size:2.5rem;margin-bottom:12px}.stat-icon,.stat-number{background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-number{font-size:2.8rem;font-weight:800;margin-bottom:8px}.stat-label{color:var(--text-secondary);font-size:1rem;font-weight:500}.category-card{border:none;border-radius:20px;overflow:hidden;transition:all .4s cubic-bezier(.175,.885,.32,1.275);height:100%;background:#fff;box-shadow:0 4px 20px rgba(0,0,0,.08);position:relative}.category-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--primary-gradient);transform:scaleX(0);transition:transform .3s ease}.category-card:hover{transform:translateY(-12px);box-shadow:0 20px 40px rgba(0,0,0,.15)}.category-card:hover:before{transform:scaleX(1)}.category-card .card-header{background:var(--primary-gradient);color:#fff;padding:30px 24px;border:none}.category-icon{font-size:2.5rem;margin-bottom:12px;display:inline-block;animation:bounce 2s ease infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.category-card .card-body{padding:24px}.article-item{padding:14px 12px;border-bottom:1px solid #f1f3f5;transition:all .3s ease;border-radius:12px;margin-bottom:4px}.article-item:last-child{border-bottom:none}.article-item:hover{background:linear-gradient(135deg,rgba(102,126,234,.05),rgba(118,75,162,.05));padding-left:20px;transform:translateX(4px)}.article-item a{color:var(--text-primary);text-decoration:none;display:flex;align-items:center;gap:12px;font-weight:500}.article-item a i{color:#667eea;font-size:1.1rem;transition:transform .3s ease}.article-item:hover a i{transform:translateX(4px)}.article-header{background:var(--primary-gradient);color:#fff;padding:100px 0 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p{margin-bottom:24px;line-height:1.9}.article-content ol,.article-content ul{margin-bottom:28px;padding-left:32px}.article-content li{margin-bottom:14px;line-height:1.8;position:relative}.article-content ul li::marker{color:#667eea}.article-content blockquote{margin:40px 0;padding:24px 32px;border-left:4px solid #667eea;background:linear-gradient(135deg,rgba(102,126,234,.05),rgba(118,75,162,.05));border-radius:0 12px 12px 0;font-style:italic;color:#4b5563}.article-content a{color:#667eea;text-decoration:none;border-bottom:2px solid transparent;transition:border-color .3s ease}.article-content a:hover{border-bottom-color:#667eea}.article-meta{display:flex;gap:24px;flex-wrap:wrap;color:hsla(0,0%,100%,.9);margin-top:20px;font-size:.95rem}.article-meta-item{display:flex;align-items:center;gap:8px;padding:8px 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a:hover{color:#fff;transform:translateX(4px)}.social-links{display:flex;gap:12px}.social-link{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:hsla(0,0%,100%,.05);border-radius:12px;color:#fff;text-decoration:none;transition:all .3s ease;border:1px solid hsla(0,0%,100%,.1)}.social-link:hover{background:var(--primary-gradient);transform:translateY(-3px);box-shadow:0 10px 20px rgba(102,126,234,.3)}.footer-divider{border-color:hsla(0,0%,100%,.1);margin:0}@media (max-width:768px){.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1rem}.stat-number{font-size:2rem}.stats-section{margin:-40px 20px 40px;padding:30px 20px}.article-featured-image{height:250px}.article-content{font-size:1rem}.article-content h2{font-size:1.5rem}.main-content{padding-top:70px}}@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}.shadow-custom{box-shadow:0 20px 60px rgba(0,0,0,.15)}.skeleton{background:linear-gradient(90deg,#f0f0f0 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hsla(0,0%,100%,.25);border-radius:50px;font-size:.9rem;font-weight:600;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);margin-bottom:24px;animation:slideInLeft .6s ease}@keyframes slideInLeft{0%{opacity:0;transform:translateX(-30px)}to{opacity:1;transform:translateX(0)}}.article-title-modern{font-size:clamp(2rem,4vw,3.5rem);font-weight:900;line-height:1.2;margin-bottom:32px;animation:slideInUp .6s ease .2s both;text-shadow:0 4px 20px rgba(0,0,0,.1)}@keyframes slideInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.article-meta-modern{display:flex;gap:16px;flex-wrap:wrap;animation:fadeIn .6s ease .4s both}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.article-meta-modern .meta-item{display:flex;align-items:center;gap:8px;padding:10px 18px;background:hsla(0,0%,100%,.12);border-radius:50px;font-size:.9rem;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid hsla(0,0%,100%,.2);transition:all .3s ease}.article-meta-modern .meta-item:hover{background:hsla(0,0%,100%,.2);transform:translateY(-2px)}.article-image-wrapper{margin:-100px auto 60px;max-width:1000px;position:relative;z-index:10;animation:zoomIn .8s ease}@keyframes zoomIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.article-featured-image{width:100%;height:450px;object-fit:cover;border-radius:24px;box-shadow:0 30px 80px rgba(0,0,0,.25),0 0 0 1px hsla(0,0%,100%,.1);transition:transform .3s ease}.article-featured-image:hover{transform:scale(1.02)}.article-content-modern{font-size:1.125rem;line-height:1.85;color:#374151}.article-content-modern h2{font-size:2.25rem;font-weight:800;color:#1f2937;margin-top:80px;margin-bottom:32px;position:relative;padding-left:24px;scroll-margin-top:100px}.article-content-modern h2:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:6px;height:60%;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:10px;box-shadow:0 0 15px rgba(102,126,234,.4)}.article-content-modern h3{font-size:1.75rem;font-weight:700;color:#374151;margin-top:50px;margin-bottom:24px;scroll-margin-top:100px}.article-content-modern p{margin-bottom:28px;line-height:1.9}.article-content-modern p:first-of-type{font-size:1.25rem;font-weight:500;color:#4b5563;line-height:1.8}.article-content-modern ol,.article-content-modern ul{margin:32px 0;padding-left:40px}.article-content-modern li{margin-bottom:16px;line-height:1.85;position:relative}.article-content-modern ul li::marker{color:#667eea;font-size:1.2em}.article-content-modern ol li{padding-left:12px}.article-content-modern blockquote{margin:48px 0;padding:32px 40px;border-left:5px solid #667eea;background:linear-gradient(135deg,rgba(102,126,234,.08),rgba(118,75,162,.08));border-radius:0 16px 16px 0;font-size:1.2rem;font-style:italic;color:#4b5563;box-shadow:0 10px 30px rgba(0,0,0,.05)}.article-content-modern a{color:#667eea;text-decoration:none;border-bottom:2px solid transparent;transition:all .3s ease;font-weight:600}.article-content-modern a:hover{border-bottom-color:#667eea;color:#764ba2}.article-content-modern strong{font-weight:700;color:#1f2937}.faq-section-modern{margin-top:80px;padding:60px 40px;background:linear-gradient(135deg,#f8f9fa,#fff);border-radius:24px;box-shadow:0 20px 60px rgba(0,0,0,.05)}.faq-heading{font-size:2.5rem;font-weight:800;color:#1f2937;margin-bottom:40px;display:flex;align-items:center;gap:16px}.faq-heading i{background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.faq-item-modern{background:#fff;border:none;border-radius:16px;margin-bottom:16px;box-shadow:0 4px 20px rgba(0,0,0,.05);overflow:hidden;transition:all .3s ease}.faq-item-modern:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(0,0,0,.1)}.faq-item-modern .accordion-button{padding:24px 28px;font-size:1.1rem;font-weight:700;color:#1f2937;background:#fff;border:none;box-shadow:none}.faq-item-modern .accordion-button:not(.collapsed){background:linear-gradient(135deg,rgba(102,126,234,.05),rgba(118,75,162,.05));color:#667eea}.faq-item-modern .accordion-button:after{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23667eea'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e")}.faq-item-modern .accordion-body{padding:24px 28px;font-size:1.05rem;line-height:1.8;color:#4b5563}.article-navigation{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:80px;padding-top:40px;border-top:2px solid #e5e7eb;flex-wrap:wrap}.btn-modern{padding:14px 32px;font-size:1rem;font-weight:600;border-radius:12px;transition:all .3s cubic-bezier(.4,0,.2,1);display:inline-flex;align-items:center;gap:8px;border:none;text-decoration:none}.btn-modern.btn-outline{background:#fff;color:#667eea;border:2px solid #667eea}.btn-modern.btn-outline:hover{background:#667eea;color:#fff;transform:translateX(-4px);box-shadow:0 10px 30px rgba(102,126,234,.3)}.btn-modern.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.btn-modern.btn-primary:hover{transform:translateY(-3px);box-shadow:0 15px 40px rgba(102,126,234,.4)}@media (max-width:768px){.article-header-modern{padding:100px 0 40px}.article-title-modern{font-size:2rem}.article-image-wrapper{margin:-60px 20px 40px}.article-featured-image{height:250px;border-radius:16px}.article-content-modern{font-size:1rem}.article-content-modern h2{font-size:1.75rem;margin-top:50px}.article-content-modern h3{font-size:1.5rem}.faq-section-modern{padding:40px 24px;margin-top:60px}.faq-heading{font-size:1.75rem}.article-navigation{flex-direction:column;gap:12px}.btn-modern{width:100%;justify-content:center}}.category-card-mini{background:#fff;border-radius:16px;padding:30px 24px;text-align:center;transition:all .3s ease;box-shadow:0 4px 20px rgba(0,0,0,.06);height:100%;border:2px solid transparent}.category-card-mini:hover{transform:translateY(-8px);box-shadow:0 12px 40px rgba(0,0,0,.12);border-color:rgba(102,126,234,.2)}.category-card-mini-icon{width:70px;height:70px;border-radius:18px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:2rem;color:#fff;box-shadow:0 8px 20px rgba(0,0,0,.15)}.category-card-mini h3{color:var(--text-primary);margin-bottom:8px;font-weight:700}.article-card{background:#fff;border-radius:16px;padding:24px;height:100%;transition:all .3s ease;border:1px solid #e9ecef;position:relative}.article-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.1);border-color:rgba(102,126,234,.3)}.article-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.category-badge{display:inline-flex;align-items:center;padding:6px 12px;border-radius:8px;font-size:.75rem;font-weight:600;color:#fff;text-transform:uppercase;letter-spacing:.5px}.article-date{font-size:.85rem}.article-card-title{font-size:1.25rem;font-weight:700;margin-bottom:12px;line-height:1.4}.article-card-title a{color:var(--text-primary);text-decoration:none}.article-card-title a:hover{color:#667eea}.article-card-description{color:var(--text-secondary);font-size:.95rem;line-height:1.6;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.article-card-footer{display:flex;justify-content:space-between;align-items:center;padding-top:12px;border-top:1px solid #f1f3f5}.read-more{color:#667eea;font-weight:600;font-size:.9rem;display:flex;align-items:center;gap:6px;transition:gap .3s ease}.article-card:hover .read-more{gap:10px}.toc-sidebar{position:-webkit-sticky;position:sticky;top:100px;max-height:calc(100vh - 120px);overflow-y:auto;padding:24px;background:#fff;border-radius:16px;box-shadow:0 4px 20px rgba(0,0,0,.06)}.toc-title{font-size:.9rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--text-secondary);margin-bottom:16px;display:flex;align-items:center;gap:8px}.toc-list{list-style:none;padding:0;margin:0}.toc-item{margin-bottom:8px}.toc-link{display:block;padding:8px 12px;border-radius:8px;color:var(--text-secondary);text-decoration:none;font-size:.9rem;transition:all .2s ease;border-left:3px solid transparent}.toc-link.level-3{padding-left:24px;font-size:.85rem;color:#8896ab}.toc-link:hover{background:rgba(102,126,234,.08);padding-left:16px}.toc-link.active,.toc-link:hover{color:#667eea;border-left-color:#667eea}.toc-link.active{background:rgba(102,126,234,.1);font-weight:600}.article-progress{margin-bottom:20px;padding:16px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px;color:#fff}.article-progress-label{font-size:.85rem;margin-bottom:8px;opacity:.9}.article-progress-bar{height:6px;background:hsla(0,0%,100%,.3);border-radius:10px;overflow:hidden}.article-progress-fill{height:100%;background:#fff;border-radius:10px;transition:width .3s ease;box-shadow:0 0 10px hsla(0,0%,100%,.5)}.article-progress-percent{font-size:1.5rem;font-weight:700;margin-top:8px}.search-empty{padding:60px 20px}.search-empty-icon{font-size:5rem;color:#e9ecef;display:block;margin-bottom:20px}.search-no-results{padding:60px 20px}.search-header{padding-bottom:20px;border-bottom:2px solid #f1f3f5}.logo-image{height:40px;transition:transform .3s ease}.logo-image:hover{transform:scale(1.05)}