:root{--primary:#0891b2;--primary-dark:#0e7490;--primary-light:#06b6d4;--accent:#14b8a6;--dark-bg:#0f172a;--dark-card:#1e293b;--white:#fff;--light-gray:#f8fafc;--text-dark:#0f172a;--text-light:#64748b;--border:#e2e8f0;--ad-bg:#fef3c7;--bg:#fff;--card-bg:#fff;--header-bg:#fff}*{margin:0;padding:0;box-sizing:border-box}body,html{overflow-x:hidden;width:100%}body{font-family:Segoe UI,-apple-system,BlinkMacSystemFont,Roboto,sans-serif;line-height:1.6;color:var(--text-dark);background:var(--bg);transition:background .3s,color .3s}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;box-sizing:border-box}@media (max-width:480px){.container{padding:0 15px}}header{background:var(--header-bg);box-shadow:0 2px 8px rgba(0,0,0,.1);position:fixed;top:0;left:0;right:0;width:100%;z-index:1000;transition:all .3s ease}header.scrolled{box-shadow:0 4px 12px rgba(0,0,0,.15)}body{padding-top:70px}.navbar{padding:1rem 0}.navbar 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a:hover{border-bottom-color:#fff}.calculators{padding:3rem 0;background:var(--bg)}.calculators h2{text-align:center;font-size:1.75rem;margin-bottom:2rem;color:var(--text-dark);font-weight:600}.calculator-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.5rem}.calculator-card{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;padding:1.75rem;text-align:center;transition:all .3s;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.06)}.calculator-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:0 8px 20px rgba(8,145,178,.15)}.calculator-card .flag{font-size:2.5rem;margin-bottom:.75rem}.calculator-card h3{color:var(--text-dark);margin-bottom:.5rem;font-size:1.1rem;font-weight:600}.calculator-card p{color:var(--text-light);font-size:.9rem;line-height:1.4}.features{background:var(--light-gray);padding:3rem 0}.features h2{text-align:center;font-size:1.75rem;margin-bottom:2rem;font-weight:600}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}.feature-card{background:var(--card-bg);padding:1.75rem;border-radius:16px;text-align:center;border:1px solid var(--border);box-shadow:0 2px 8px rgba(0,0,0,.06);transition:all .3s}.feature-card:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgba(8,145,178,.12)}.feature-icon{font-size:2.5rem;margin-bottom:.75rem}.feature-card h3{color:var(--primary);margin-bottom:.5rem;font-size:1.1rem;font-weight:600}.page-header{background:linear-gradient(135deg,var(--primary),var(--accent));color:var(--white);padding:3rem 0;text-align:center}.page-header h1{font-size:2.5rem;margin-bottom:.5rem}.content-section{padding:4rem 0}.content-wrapper{max-width:800px;margin:0 auto}.content-wrapper h2{color:var(--primary);margin:2rem 0 1rem}.content-wrapper h3{color:var(--primary-dark);margin:1.5rem 0 .5rem}.content-wrapper p{margin-bottom:1rem;line-height:1.8}.content-wrapper ul{margin:1rem 0 1rem 2rem}.content-wrapper li{margin-bottom:.5rem}.content-wrapper a{color:var(--primary);text-decoration:none}.content-wrapper a:hover{text-decoration:underline}.blog-section{padding:4rem 0}.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.blog-card{background:var(--card-bg);border-radius:12px;overflow:hidden;box-shadow:0 4px 12px rgba(0,0,0,.1);transition:transform .3s}.blog-card:hover{transform:translateY(-5px)}.blog-image{background:var(--light-gray);height:200px;display:flex;align-items:center;justify-content:center}.blog-placeholder{font-size:4rem}.blog-content{padding:1.5rem}.blog-date{color:var(--text-light);font-size:.9rem}.blog-card h2{font-size:1.3rem;margin:.5rem 0;color:var(--text-dark)}.blog-card p{color:var(--text-light);margin-bottom:1rem}.read-more{color:var(--primary);text-decoration:none;font-weight:600}.read-more:hover{color:var(--primary-dark)}.ad-container{display:none;background:var(--ad-bg);border:1px solid #fde68a;border-radius:8px;padding:1rem;margin:2rem 0;text-align:center;min-height:250px;align-items:center;justify-content:center}.ad-container.horizontal{min-height:90px}.ad-container.sidebar{min-height:600px;position:sticky;top:80px}.ad-placeholder{color:var(--text-light);font-size:.9rem}footer{background:var(--dark-bg);color:var(--white);padding:3rem 0 1rem}.footer-content{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:3rem;margin-bottom:2rem}.footer-section h3{font-size:1.3rem}.footer-section h3,.footer-section h4{color:var(--primary-light);margin-bottom:1rem}.footer-section h4{font-size:1.1rem}.footer-section p{color:hsla(0,0%,100%,.8);line-height:1.6;margin-bottom:.5rem}.footer-section ul{list-style:none}.footer-section ul li{margin-bottom:.6rem}.footer-section a{color:hsla(0,0%,100%,.8);text-decoration:none;transition:color .3s}.footer-section a:hover{color:var(--primary-light)}.footer-social{display:flex;gap:1rem;margin-top:1rem}.footer-social a{font-size:1.5rem;transition:transform .3s}.footer-social a:hover{transform:scale(1.2)}.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid hsla(0,0%,100%,.1)}.footer-bottom p{color:hsla(0,0%,100%,.6)}@media (max-width:968px){.footer-content{grid-template-columns:1fr 1fr}}@media (max-width:568px){.footer-content{grid-template-columns:1fr}}@media (max-width:768px){.menu-toggle{display:flex;z-index:1001}.nav-menu{position:fixed;top:70px;left:0;right:0;background:var(--header-bg);flex-direction:column;padding:0;box-shadow:0 4px 8px rgba(0,0,0,.1);max-height:0;overflow:hidden;transition:max-height .3s ease;z-index:999;gap:0}.nav-menu li{border-bottom:1px solid var(--border)}.nav-menu li:last-child{border-bottom:none}.nav-menu a{display:block;padding:1rem}.nav-menu.active{max-height:500px}.hero{padding:2.5rem 0 2rem}.hero h1{font-size:1.75rem;margin-bottom:.5rem}.hero p{font-size:1rem}.page-header h1{font-size:1.8rem}.blog-grid,.calculator-grid,.feature-grid{grid-template-columns:1fr}}@media (max-width:480px){.container{padding:0 15px}.hero{padding:2rem 0 1.5rem}.hero h1{font-size:1.5rem;margin-bottom:.5rem;line-height:1.3}.hero p{font-size:.95rem;line-height:1.4}.blog-section,.calculators,.content-section,.features{padding:2rem 0}.calculators h2,.features h2{font-size:1.5rem;margin-bottom:1.5rem}.calculator-grid,.feature-grid{gap:1rem}.calculator-card,.feature-card{padding:1.25rem}.calculator-card .flag,.feature-icon{font-size:2rem}.calculator-card h3,.feature-card h3{font-size:1rem}.calculator-card p,.feature-card p{font-size:.85rem}}.scroll-to-top{position:fixed;bottom:30px;right:30px;width:50px;height:50px;background:var(--primary);color:var(--white);border:none;border-radius:50%;font-size:1.5rem;cursor:pointer;box-shadow:0 4px 12px rgba(8,145,178,.3);opacity:0;visibility:hidden;transition:all .3s;z-index:999}.scroll-to-top.visible{opacity:1;visibility:visible}.scroll-to-top:hover{background:var(--primary-dark);transform:translateY(-3px)}@media (max-width:768px){.scroll-to-top{width:45px;height:45px;bottom:20px;right:20px;font-size:1.3rem}}