:root{--primary: #003D7A;--primary-dark: #002B57;--primary-light: #4A90E2;--secondary: #20C997;--secondary-dark: #1eb889;--secondary-light: #4dd8ad;--bg-light: #F8FAFC;--bg-alt: #f1f5f9;--text-dark: #334155;--text-color: #334155;--text-muted: #64748B;--white: #FFFFFF;--border: #E2E8F0;--danger: #d32f2f;--warning: #f59e0b;--success: #2e7d32;--border-radius: 8px;--border-radius-lg: 12px;--border-radius-xl: 16px;--border-radius-pill: 100px;--shadow: 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);--font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-heading: "Inter", sans-serif;--container-max: 1200px;--header-height: 100px;--header-height-scrolled: 70px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-body);color:var(--text-dark);background-color:var(--bg-light);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;width:100%}*{overflow-wrap:break-word;word-wrap:break-word}a{text-decoration:none;color:var(--primary);transition:color .2s ease}a:hover{color:var(--primary-dark)}ul{list-style:none}img{max-width:100%;height:auto;display:block}.container{max-width:var(--container-max);margin:0 auto;padding:0 20px}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);line-height:1.3;color:var(--text-dark)}.section-title{text-align:center;font-size:2rem;color:var(--text-dark);margin-bottom:40px;margin-top:60px;font-weight:800}.text-center{text-align:center}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border-radius:var(--border-radius);font-weight:600;cursor:pointer;transition:all .25s ease;border:none;font-size:16px;font-family:var(--font-body);text-decoration:none}.btn-primary{background:var(--primary);color:var(--white)}.btn-primary:hover{background:var(--primary-dark);color:var(--white);transform:translateY(-1px);box-shadow:0 4px 12px #20c9974d}.btn-secondary{background:var(--secondary);color:var(--white);border-radius:var(--border-radius-pill)}.btn-secondary:hover{background:var(--secondary-dark);color:var(--white);transform:translateY(-2px);box-shadow:0 4px 12px #20c9974d}.btn-outline-primary{display:inline-block;padding:10px 20px;border:2px solid var(--primary);color:var(--primary);border-radius:var(--border-radius-pill);font-weight:600;text-decoration:none;transition:all .25s ease;font-size:14px;background:transparent}.btn-outline-primary:hover{background:var(--primary);color:var(--white)}.btn-sm{padding:8px 18px;font-size:14px;border-radius:var(--border-radius-pill)}.site-header{background:var(--white);box-shadow:0 1px 3px #0000001a;position:sticky;top:0;z-index:100;transition:box-shadow .3s ease}.site-header.scrolled{box-shadow:0 4px 12px #00000014}.header-inner{display:flex;justify-content:space-between;align-items:center;height:var(--header-height);transition:height .3s ease}.site-header.scrolled .header-inner{height:var(--header-height-scrolled)}.site-logo{width:250px;height:70px;display:flex;align-items:center;overflow:hidden;transition:all .3s ease}.site-logo img{width:100%;height:100%;display:block;object-fit:cover;object-position:left center;transform:scale(.95);transform-origin:left center;transition:all .3s ease}.site-header.scrolled .site-logo{height:55px}.site-header.scrolled .site-logo img{transform:scale(.9)}.reading-progress-container{width:100%;height:4px;background:#0000000d;position:absolute;bottom:0;left:0;overflow:hidden}.reading-progress-bar{height:100%;width:0%;background:var(--secondary);box-shadow:0 0 10px #20c99780;transition:width .1s ease-out}.main-navigation ul{display:flex;gap:30px;list-style:none}.main-navigation a{font-weight:500;color:var(--text-dark);font-size:15px;position:relative;padding:4px 0;text-decoration:none}.main-navigation a:after{content:"";position:absolute;bottom:-2px;left:0;width:0;height:2px;background:var(--primary);transition:width .3s ease}.main-navigation a:hover:after,.main-navigation a.active:after{width:100%}.main-navigation a:hover{color:var(--primary)}.mobile-menu-btn{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;z-index:110}.mobile-menu-btn span{display:block;width:24px;height:2px;background:var(--text-dark);transition:all .3s ease;border-radius:2px}.mobile-menu-btn.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.mobile-menu-btn.open span:nth-child(2){opacity:0}.mobile-menu-btn.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}.site-footer{background:var(--white);margin-top:60px;padding:60px 0 30px;border-top:1px solid var(--border);text-align:center;color:var(--text-muted);font-size:14px}.ymyl-disclaimer{background:var(--bg-light);border-left:4px solid #cbd5e1;padding:20px;margin-bottom:40px;text-align:left;border-radius:4px;color:var(--text-muted);font-size:12px;line-height:1.5}.footer-links{display:flex;justify-content:center;flex-wrap:wrap;gap:30px;margin-bottom:20px}.footer-links a{color:var(--text-muted)}.footer-links a:hover{color:var(--primary)}.hero-section{background:linear-gradient(135deg,var(--bg-light) 0%,#E0F2FE 100%);padding:80px 0 60px;text-align:center;border-bottom:1px solid var(--border);position:relative;overflow:hidden}.hero-section:before{content:"";position:absolute;top:-50%;right:-20%;width:500px;height:500px;background:radial-gradient(circle,rgba(32,201,151,.08) 0%,transparent 70%);border-radius:50%}.hero-title{font-size:3rem;color:var(--primary);margin-bottom:40px;line-height:1.2;font-weight:800;position:relative}.search-wrap{max-width:700px;margin:0 auto 50px}.search-form{display:flex;box-shadow:var(--shadow);border-radius:var(--border-radius);overflow:hidden}.search-field{flex-grow:1;padding:15px 25px;border:1px solid var(--border);border-right:none;font-size:18px;outline:none;border-radius:var(--border-radius) 0 0 var(--border-radius);font-family:var(--font-body);transition:border-color .2s}.search-field:focus{border-color:var(--primary)}.search-submit{border-radius:0 var(--border-radius) var(--border-radius) 0;padding:15px 40px;font-size:18px}.tiles-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:25px}.tile{background:var(--white);border:1px solid var(--border);padding:30px 20px;text-align:center;border-radius:var(--border-radius-lg);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;text-decoration:none;color:inherit;display:block}.tile:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--secondary);color:inherit}.tile-icon{background:#e6f9f4;border-radius:50%;width:90px;height:90px;margin:0 auto 20px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 6px #0000000d;transition:transform .3s ease}.tile:hover .tile-icon{transform:scale(1.05)}.tile:nth-child(2n) .tile-icon{background:#eff6ff}.tile-icon svg{width:44px;height:44px}.tile h3{font-size:1.2rem;color:var(--text-dark);margin-bottom:10px}.tile p{font-size:14px;color:var(--text-muted)}.top-articles{padding:80px 0 110px;background:var(--bg-light)}.articles-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}.article-card{background:var(--white);border-radius:var(--border-radius-lg);overflow:hidden;border:1px solid var(--border);transition:box-shadow .3s ease,transform .3s ease;display:flex;flex-direction:column;text-decoration:none;color:inherit}.article-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);color:inherit}.article-img{position:relative;height:200px;overflow:hidden}.article-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.article-card:hover .article-img img{transform:scale(1.05)}.article-category{position:absolute;top:15px;left:15px;background:var(--primary);color:var(--white);padding:4px 12px;font-size:11px;font-weight:700;border-radius:20px;text-transform:uppercase;letter-spacing:.5px;box-shadow:0 2px 4px #0000001a}.article-content{padding:25px;flex-grow:1}.article-meta{display:flex;gap:15px;font-size:13px;color:var(--text-muted);margin-bottom:12px}.article-meta span{display:flex;align-items:center;gap:6px}.article-meta svg{width:16px;height:16px}.article-content h3{font-size:1.2rem;color:var(--text-dark);margin-bottom:10px;line-height:1.4}.article-content p{color:var(--text-muted);font-size:15px;margin-bottom:0;line-height:1.6}.article-footer{padding:0 25px 25px;text-align:center;margin-top:auto}.calcs-teaser{padding:90px 0;background:var(--white)}.calcs-header{text-align:center;margin-bottom:50px}.calcs-subtitle{color:var(--text-muted);font-size:18px;max-width:600px;margin:-10px auto 0}.calcs-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:20px}.calc-card{flex:1 1 calc(33.333% - 20px);min-width:260px;max-width:360px;background:#f8fbfa;border:1px solid rgba(32,201,151,.25);border-radius:var(--border-radius-lg);padding:30px 25px;text-align:center;transition:all .3s ease;text-decoration:none;color:inherit;display:flex;flex-direction:column}.calc-card:hover{transform:translateY(-5px);box-shadow:0 10px 20px #20c99726;border-color:var(--secondary);background:var(--white);color:inherit}.calc-icon{width:60px;height:60px;margin:0 auto 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summary:after{content:"+";position:absolute;right:25px;top:50%;transform:translateY(-50%);font-size:24px;color:var(--primary);font-weight:400;transition:transform .3s ease}.faq-item[open] summary{background:var(--primary);color:var(--white)}.faq-item[open] summary:after{content:"−";color:var(--white)}.faq-content{padding:20px 25px;color:var(--text-muted);font-size:15px;line-height:1.7;border-top:1px solid var(--border)}.calc-faq{margin-top:80px;padding-top:60px;border-top:1px solid var(--border)}.faq-title{text-align:center;font-size:2.2rem;color:var(--primary);margin-bottom:50px;font-weight:800}.official-tools{background:var(--primary);padding:80px 0}.official-header{text-align:center;margin-bottom:50px}.official-header h2{color:var(--white)}.official-subtitle{color:#ffffffd9;font-size:18px;max-width:600px;margin:-20px auto 0}.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}.tool-card{background:var(--white);border-radius:var(--border-radius-lg);padding:40px 30px;border:none;transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column;text-align:center;box-shadow:0 10px 25px #0000001a}.tool-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-xl)}.tool-icon{margin:0 auto 20px;width:64px;height:64px;display:flex;align-items:center;justify-content:center;background:var(--bg-alt);border-radius:var(--border-radius-xl);transition:background .3s ease}.tool-card:hover .tool-icon{background:#e2e8f0}.tool-icon svg{width:32px;height:32px}.tool-card h3{font-size:1.3rem;color:var(--text-dark);margin-bottom:15px}.tool-card p{color:var(--text-muted);font-size:14.5px;line-height:1.6;flex-grow:1;margin-bottom:25px}.guide-section{padding:80px 0}.guide-section:nth-child(2n){background:var(--bg-light)}.guide-content-card{background:var(--white);padding:40px;border-radius:var(--border-radius-lg);box-shadow:0 5px 20px #0000000d}.guide-two-col{display:flex;gap:30px;flex-wrap:wrap}.guide-two-col>div{flex:1;min-width:300px}.guide-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:30px}.code-card{background:var(--white);padding:40px;border-radius:var(--border-radius-lg);box-shadow:0 8px 30px #0000000f}.code-card--danger{border-top:5px solid var(--danger)}.code-card--success{border-top:5px solid var(--success)}.info-strip{border-left:4px solid var(--primary);background:var(--white);padding:30px;border-radius:var(--border-radius);box-shadow:0 4px 10px #00000008;margin-bottom:20px}.info-strip--danger{border-left-color:var(--danger)}.callout-warning{background:#fffdf5;border-left:5px solid var(--warning);padding:25px;border-radius:4px;margin-top:30px}.page-nav-section{background:var(--white);border-bottom:1px solid var(--border);padding:20px 0;position:sticky;top:0;z-index:99;box-shadow:0 4px 10px #00000005}.page-nav-inner{display:flex;flex-wrap:wrap;gap:15px;justify-content:center}@media(max-width:992px){.tools-grid{grid-template-columns:1fr}}@media(max-width:768px){.container{padding:0 15px}.hero-title{font-size:2rem}.search-form{flex-direction:column;box-shadow:none}.search-field{border-radius:var(--border-radius);border-right:1px solid var(--border);margin-bottom:10px}.search-submit{border-radius:var(--border-radius);width:100%}.section-title{font-size:1.6rem}.header-inner{height:auto;padding:12px 0}.site-logo{width:180px;height:50px}.main-navigation{display:none}.main-navigation.open{display:flex;position:fixed;inset:0;background:#fffffffa;backdrop-filter:blur(10px);z-index:100;align-items:center;justify-content:center}.main-navigation.open ul{flex-direction:column;align-items:center;gap:25px}.main-navigation.open a{font-size:20px}.mobile-menu-btn{display:flex}.tiles-grid{grid-template-columns:1fr 1fr;gap:15px}.articles-grid,.guide-grid{grid-template-columns:1fr}.page-nav-inner{gap:8px}.page-nav-inner .btn{font-size:12px;padding:6px 12px}.footer-links{flex-direction:column;gap:12px}}@media(max-width:480px){.tiles-grid{grid-template-columns:1fr}}.recommended-articles-grid{display:grid!important;grid-template-columns:repeat(3,1fr)!important;gap:20px!important}@media(max-width:800px){.recommended-articles-grid{grid-template-columns:1fr!important}}.single-post-main{background:var(--bg-light);padding-bottom:60px}.single-header{padding:60px 0 40px;border-bottom:1px solid var(--border);margin-bottom:0;position:relative}.single-header.has-bg{color:var(--white);background:#004085}.single-header.has-bg .entry-title{color:var(--white)}.article-category-label{display:inline-block;background:#20c9971a;color:var(--secondary);padding:4px 12px;border-radius:4px;font-weight:600;font-size:14px;margin-bottom:15px}.single-header.has-bg .article-category-label{background:#fff3;color:var(--white)}.entry-title{font-size:36px;line-height:1.3;margin-bottom:25px;color:var(--text-dark)}.article-meta-advanced{display:inline-flex;flex-wrap:wrap;gap:30px;padding:20px;background:var(--bg-light);border-radius:var(--border-radius);font-size:15px}.single-header.has-bg .article-meta-advanced{background:#ffffff1a;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2);color:var(--white)}.meta-item{display:flex;align-items:center;gap:15px}.meta-author{gap:12px}.meta-author img{border-radius:50%;width:48px;height:48px;object-fit:cover}.author-details{display:flex;flex-direction:column}.author-label{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.single-header.has-bg .author-label{color:#fffc}.meta-dates{display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;gap:14px;color:var(--text-muted)}.single-header.has-bg .meta-dates{color:#fffc}.meta-dates .date-group{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.meta-icon{width:16px;height:16px;opacity:.8}.reading-time-meta{padding-left:5px;border-left:1px solid rgba(255,255,255,.2)}.single-header:not(.has-bg) .reading-time-meta{border-left-color:var(--border)}.meta-consultation{background:#0052a50d;padding:10px 15px;border-radius:6px;border:1px dashed var(--primary);display:flex;align-items:center;gap:8px}.single-header.has-bg .meta-consultation{background:#0003;border-color:#ffffff4d}.consult-badge{display:flex;align-items:center;gap:5px;color:var(--primary);font-size:13px;font-weight:600;text-transform:uppercase}.single-header.has-bg .consult-badge{color:#8de8c1}.consult-badge svg{width:16px;height:16px}.tldr-box{background:linear-gradient(to right,#20c9970d,#20c99703);border-left:4px solid var(--secondary);padding:25px 30px;border-radius:0 var(--border-radius) var(--border-radius) 0;margin-top:30px}.single-header.has-bg .tldr-box{background:#00000040;border-left-color:var(--secondary);backdrop-filter:blur(10px)}.tldr-title{font-weight:700;font-size:17px;color:var(--secondary);margin-bottom:10px;display:flex;align-items:center;gap:10px}.single-header.has-bg .tldr-title{color:var(--secondary)}.tldr-title__icon{display:inline-flex;flex-shrink:0}.tldr-title__label{line-height:1.25;text-transform:uppercase;letter-spacing:.06em;font-size:15px}.tldr-content{font-size:16px;line-height:1.6;color:var(--text-dark)}.single-header.has-bg .tldr-content{color:#ffffffe6}.tldr-content p:last-child{margin-bottom:0}.single-breadcrumbs-strip{background:var(--bg-light);padding:10px 0 6px;border-bottom:1px solid rgba(226,232,240,.65)}.breadcrumbs-nav{font-size:12px;line-height:1.5;color:var(--text-muted);overflow-wrap:break-word;word-wrap:break-word;white-space:normal}.breadcrumbs-nav a{color:var(--text-muted);text-decoration:none;transition:color .15s ease}.breadcrumbs-nav a:hover{color:var(--primary)}.breadcrumbs-nav .separator{color:#cbd5e1;margin:0 .35em}.article-audio-box{margin-top:0;background:var(--white);border:1px solid var(--border);border-radius:10px;padding:10px 12px;box-shadow:0 2px 10px 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var(--border);font-size:11px;color:var(--text-muted);font-weight:600}.single-layout-wrapper{display:flex;flex-wrap:wrap;gap:40px;margin-bottom:60px;max-width:var(--container-max);padding-top:14px;align-items:flex-start}.article-audio-row{flex:1 1 100%;width:100%;margin-bottom:4px}.single-post-content{flex:1;min-width:0}.single-sidebar{width:320px;flex-shrink:0;position:sticky;top:120px;align-self:flex-start;max-height:calc(100vh - 140px);overflow:auto}.sticky-toc{background:var(--white);border:1px solid var(--border);border-radius:var(--border-radius-lg);padding:25px;box-shadow:var(--shadow)}.toc-title{font-size:18px;margin-top:0;margin-bottom:15px;color:var(--text-dark);border-bottom:2px solid var(--primary);padding-bottom:10px;display:inline-block}.toc-list{list-style:none;padding:0;margin:0}.toc-item{margin-bottom:12px;line-height:1.4}.toc-item.toc-h3{padding-left:20px;font-size:14px;margin-bottom:8px}.toc-item.toc-h2{font-weight:500;font-size:15px}.toc-item 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