:root{--primary:#2563eb;--primary-dark:#1d4ed8;--secondary:#64748b;--success:#10b981;--warning:#f59e0b;--error:#ef4444;--background:#fff;--background-alt:#f8fafc;--foreground:#0f172a;--foreground-muted:#64748b;--border:#e2e8f0;--border-dark:#cbd5e1;--spacing-xs:0.25rem;--spacing-sm:0.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem;--spacing-2xl:3rem;--radius-sm:0.375rem;--radius:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--shadow:0 1px 3px 0 rgba(0,0,0,.1),0 1px 2px -1px rgba(0,0,0,.1);--shadow-lg:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1);--font-sans:"Inter",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"JetBrains Mono",ui-monospace,monospace;--container:1200px;--container-narrow:800px}*{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{font-family:var(--font-sans);font-size:1rem;line-height:1.6;color:var(--foreground);background-color:var(--background);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{line-height:1.2;font-weight:600;letter-spacing:-.02em}h1{font-size:2.5rem}h2{font-size:1.875rem}h3{font-size:1.5rem}h4{font-size:1.25rem}p{color:var(--foreground-muted)}a{color:var(--primary);text-decoration:none;transition:color .2s}a:hover{color:var(--primary-dark)}img{max-width:100%;height:auto;display:block}button,input,select,textarea{font-family:inherit;font-size:inherit}.container{max-width:var(--container)}.container,.container-narrow{margin:0 auto;padding:0 var(--spacing-lg)}.container-narrow{max-width:var(--container-narrow)}.header{background-color:var(--background);border-bottom:1px solid var(--border);position:-webkit-sticky;position:sticky;top:0;z-index:100}.header-inner{justify-content:space-between;padding:var(--spacing-md) 0}.header-inner,.logo{display:flex;align-items:center}.logo{font-size:1.5rem;font-weight:700;color:var(--foreground);gap:var(--spacing-sm)}.logo:hover{color:var(--primary)}.nav{display:flex;align-items:center;gap:var(--spacing-xl)}.nav a{color:var(--foreground-muted);font-weight:500;padding:var(--spacing-sm) 0;border-bottom:2px solid transparent;transition:all .2s}.nav a.active,.nav a:hover{color:var(--primary);border-bottom-color:var(--primary)}.lang-switch{display:flex;gap:var(--spacing-xs);margin-left:var(--spacing-lg);padding-left:var(--spacing-lg);border-left:1px solid var(--border)}.lang-switch a{padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-sm);font-weight:500;font-size:.875rem}.lang-switch a.active{background-color:var(--primary);color:#fff}.hero{padding:var(--spacing-2xl) 0;text-align:center;background:linear-gradient(to bottom,var(--background-alt),var(--background))}.hero h1{margin-bottom:var(--spacing-md)}.hero p{font-size:1.125rem;max-width:600px;margin:0 auto}.calculator-card{background-color:var(--background);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);overflow:hidden}.calculator-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:var(--spacing-xl);gap:var(--spacing-xl);padding:var(--spacing-xl)}@media (max-width:768px){.calculator-grid{grid-template-columns:1fr}}.calculator-inputs,.calculator-results{display:flex;flex-direction:column;gap:var(--spacing-lg)}.input-group{display:flex;flex-direction:column;gap:var(--spacing-sm)}.input-group label{font-weight:600;font-size:.875rem;color:var(--foreground)}.input-group input,.input-group select{padding:var(--spacing-md);border:1px solid var(--border);border-radius:var(--radius);background-color:var(--background);transition:border-color .2s,box-shadow .2s}.input-group input:focus,.input-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}.input-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:var(--spacing-md);gap:var(--spacing-md)}.results-card{background-color:var(--background-alt);border-radius:var(--radius-lg);padding:var(--spacing-lg)}.result-item{display:flex;justify-content:space-between;padding:var(--spacing-md) 0;border-bottom:1px solid var(--border)}.result-item:last-child{border-bottom:none}.result-label{color:var(--foreground-muted);font-size:.875rem}.result-value{font-weight:600;font-size:1.125rem;font-family:var(--font-mono)}.result-value.highlight{color:var(--primary);font-size:1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-xl);border-radius:var(--radius);font-weight:600;cursor:pointer;transition:all .2s;border:none}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-dark)}.btn-secondary{background-color:var(--background-alt);color:var(--foreground);border:1px solid var(--border)}.btn-secondary:hover{background-color:var(--border)}.btn-group{display:flex;gap:var(--spacing-md);flex-wrap:wrap}.ad-slot{background-color:var(--background-alt);border:2px dashed var(--border);border-radius:var(--radius);min-height:90px;display:flex;align-items:center;justify-content:center;color:var(--foreground-muted);font-size:.875rem;text-transform:uppercase;letter-spacing:.05em}.ad-slot-horizontal{min-height:120px;margin:var(--spacing-xl) 0}.ad-slot-inline{min-height:90px;margin:var(--spacing-lg) 0}.content-section{padding:var(--spacing-2xl) 0}.content-section h2{text-align:center;margin-bottom:var(--spacing-xl)}.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));grid-gap:var(--spacing-xl);gap:var(--spacing-xl);margin-top:var(--spacing-xl)}.step{display:flex;gap:var(--spacing-lg)}.step-icon{width:48px;height:48px;background-color:var(--primary);color:#fff;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;flex-shrink:0}.step-content h3{font-size:1.125rem;margin-bottom:var(--spacing-sm)}.step-content p{font-size:.9375rem}.faq-list{max-width:var(--container-narrow);margin:0 auto;display:flex;flex-direction:column;gap:var(--spacing-md)}.faq-item{background-color:var(--background);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden}.faq-item summary{padding:var(--spacing-lg);font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";font-size:1.5rem;font-weight:300;color:var(--foreground-muted)}.faq-item[open] summary:after{content:"-"}.faq-item p{padding:0 var(--spacing-lg) var(--spacing-lg)}.footer{background-color:var(--background-alt);border-top:1px solid var(--border);padding:var(--spacing-2xl) 0 var(--spacing-lg);margin-top:var(--spacing-2xl)}.footer-inner{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-lg);text-align:center}.footer-links{display:flex;gap:var(--spacing-xl);flex-wrap:wrap;justify-content:center}.footer-links a{color:var(--foreground-muted);font-size:.875rem}.footer-links a:hover{color:var(--primary)}.footer-copy{font-size:.875rem;color:var(--foreground-muted)}.disclaimer{background-color:#fef3c7;border:1px solid #f59e0b;border-radius:var(--radius);padding:var(--spacing-md);font-size:.875rem;color:#92400e;margin-top:var(--spacing-lg)}.seo-text{max-width:var(--container-narrow);margin:0 auto}.seo-text h2{text-align:left;margin-bottom:var(--spacing-lg)}.seo-text p{margin-bottom:var(--spacing-md);line-height:1.8}.last-updated{font-size:.75rem;color:var(--foreground-muted);margin-top:var(--spacing-md)}.calculator-grid-home{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:var(--spacing-lg);gap:var(--spacing-lg);margin-top:var(--spacing-xl)}.calculator-card-home{background-color:var(--background);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--spacing-lg);transition:all .2s}.calculator-card-home:hover{border-color:var(--primary);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.calculator-card-home h3{font-size:1.125rem;margin-bottom:var(--spacing-sm)}.calculator-card-home p{font-size:.875rem}.calculator-card-home .icon{font-size:2rem;margin-bottom:var(--spacing-md)}.breadcrumb{padding:var(--spacing-md) 0;font-size:.875rem}.breadcrumb,.breadcrumb a{color:var(--foreground-muted)}.breadcrumb a:hover{color:var(--primary)}.breadcrumb span{margin:0 var(--spacing-sm)}.page-header{padding:var(--spacing-xl) 0;text-align:center}.page-header h1{margin-bottom:var(--spacing-md)}.cookie-consent{position:fixed;bottom:0;left:0;right:0;background-color:var(--background);border-top:1px solid var(--border);padding:var(--spacing-lg);box-shadow:var(--shadow-lg);z-index:1000;display:none}.cookie-consent.show{display:block}.cookie-consent-inner{max-width:var(--container);margin:0 auto;display:flex;flex-direction:column;gap:var(--spacing-md)}.cookie-consent h3{font-size:1rem}.cookie-consent p{font-size:.875rem}.cookie-buttons{display:flex;gap:var(--spacing-md);flex-wrap:wrap}@media (max-width:640px){.nav{display:none}.input-row{grid-template-columns:1fr}.calculator-grid{padding:var(--spacing-lg)}h1{font-size:1.875rem}h2{font-size:1.5rem}}@media print{.ad-slot,.btn-group,.cookie-consent,.footer,.header{display:none!important}.calculator-card{box-shadow:none;border:1px solid #ddd}body{font-size:12pt}}