*{margin:0;padding:0;box-sizing:border-box;}:root{--primary-color:#0f4c75;--primary-dark:#0a3a5c;--primary-light:#3282b8;--secondary-color:#1b998b;--secondary-dark:#137a6e;--accent-color:#ff6b35;--accent-light:#ff8c61;--text-primary:#1a1a1a;--text-secondary:#4a5568;--text-light:#718096;--text-on-dark:#ffffff;--text-on-primary:#ffffff;--bg-white:#ffffff;--bg-light:#f7fafc;--bg-lighter:#edf2f7;--bg-dark:#1a202c;--bg-gradient-start:#0f4c75;--bg-gradient-end:#3282b8;--border-color:#e2e8f0;--border-light:#f1f5f9;--divider-color:#cbd5e0;--success-color:#1b998b;--warning-color:#f59e0b;--warning-bg:#fffbeb;--warning-text:#78350f;--error-color:#dc2626;--error-bg:#fef2f2;--error-text:#991b1b;--info-color:#3282b8;--info-bg:#eff6ff;--info-text:#1e40af;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow:0 1px 3px 0 rgba(0,0,0,0.1),0 1px 2px 0 rgba(0,0,0,0.06);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05);--shadow-xl:0 20px 25px -5px rgba(0,0,0,0.1),0 10px 10px -5px rgba(0,0,0,0.04);--transition:all 0.3s cubic-bezier(0.4,0,0.2,1);--transition-fast:all 0.15s ease;}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;line-height:1.7;color:var(--text-primary);background-color:var(--bg-white);font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}header{position:fixed;top:0;left:0;right:0;z-index:1000;transition:var(--transition);background-color:transparent;box-shadow:none;}header.scrolled{background-color:rgba(255,255,255,0.95);box-shadow:var(--shadow-md);backdrop-filter:blur(10px);}nav{max-width:1200px;margin:0 auto;padding:1.25rem 2rem;display:flex;justify-content:space-between;align-items:center;}.logo{font-size:1.75rem;font-weight:800;color:var(--text-on-dark);text-decoration:none;letter-spacing:-0.5px;transition:var(--transition);}header.scrolled .logo{color:var(--primary-color);}.logo:hover{opacity:0.8;}header.scrolled .logo:hover{color:var(--primary-light);opacity:1;}.nav-links{display:flex;list-style:none;gap:2.5rem;align-items:center;}.nav-links a{color:var(--text-on-dark);text-decoration:none;font-weight:600;font-size:0.95rem;transition:var(--transition);position:relative;padding:0.5rem 0;}header.scrolled .nav-links a{color:var(--text-primary);}.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background-color:var(--text-on-dark);transition:var(--transition);}header.scrolled .nav-links a::after{background-color:var(--primary-color);}.nav-links a:hover{opacity:0.8;}header.scrolled .nav-links a:hover{color:var(--primary-color);opacity:1;}.nav-links a:hover::after{width:100%;}.mobile-menu-toggle{display:none;background:none;border:none;font-size:1.75rem;cursor:pointer;color:var(--text-on-dark);padding:0.5rem;transition:var(--transition);}header.scrolled .mobile-menu-toggle{color:var(--text-primary);}.mobile-menu-toggle:hover{opacity:0.8;}header.scrolled .mobile-menu-toggle:hover{color:var(--primary-color);opacity:1;}.hero{background:linear-gradient(135deg,var(--bg-gradient-start) 0%,var(--bg-gradient-end) 100%);color:var(--text-on-dark);padding:8rem 2rem 5rem;text-align:center;position:relative;overflow:hidden;min-height:100vh;display:flex;align-items:center;justify-content:center;}.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background-image:linear-gradient(135deg,rgba(15,76,117,0.4) 0%,rgba(50,130,184,0.3) 100%),url('assets/bg.avif');background-size:cover;background-position:center;background-repeat:no-repeat;z-index:0;}.hero::after{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(15,76,117,0.5) 0%,rgba(50,130,184,0.4) 100%);z-index:1;}.hero-content{max-width:900px;margin:0 auto;position:relative;z-index:2;}.hero h1{font-size:3rem;margin-bottom:1.5rem;line-height:1.2;font-weight:800;letter-spacing:-1px;color:var(--text-on-dark);}.hero p{font-size:1.25rem;margin-bottom:2.5rem;color:rgba(255,255,255,0.95);line-height:1.8;max-width:800px;margin-left:auto;margin-right:auto;}.btn-primary{display:inline-block;padding:1rem 2.5rem;background-color:var(--secondary-color);color:var(--text-on-dark);text-decoration:none;border-radius:0.5rem;font-weight:700;font-size:1.05rem;transition:var(--transition);border:none;cursor:pointer;box-shadow:var(--shadow-lg);letter-spacing:0.3px;}.btn-primary:hover{background-color:var(--secondary-dark);transform:translateY(-3px);box-shadow:var(--shadow-xl);}.btn-primary:active{transform:translateY(-1px);}.btn-secondary{display:inline-block;padding:0.75rem 1.5rem;background-color:var(--bg-white);color:var(--primary-color);text-decoration:none;border-radius:0.5rem;font-weight:600;font-size:0.95rem;transition:var(--transition);border:2px solid var(--primary-color);cursor:pointer;box-shadow:var(--shadow-sm);}.btn-secondary:hover{background-color:var(--primary-color);color:var(--text-on-dark);transform:translateY(-2px);box-shadow:var(--shadow-md);}.ad-container{max-width:1200px;margin:2rem auto;padding:0 2rem;text-align:center;}.container{max-width:1200px;margin:0 auto;padding:0 2rem;}.calculator-section{padding:5rem 0;background:linear-gradient(to bottom,var(--bg-light) 0%,var(--bg-lighter) 100%);}.calculator-section h2{color:var(--text-primary);font-weight:800;font-size:2.5rem;margin-bottom:0.5rem;}.calculator-section > .container > p{text-align:center;color:var(--text-secondary);font-size:1.1rem;margin-bottom:3rem;}.calculator-wrapper{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;margin-top:2rem;}.calculator-form,.calculator-results{background-color:var(--bg-white);padding:2.5rem;border-radius:1rem;box-shadow:var(--shadow-xl);border:1px solid var(--border-light);}.calculator-form h3,.calculator-results h3{color:var(--primary-color);font-weight:700;font-size:1.5rem;margin-bottom:1.5rem;margin-top:0;}.form-group{margin-bottom:1.5rem;}.form-group label{display:block;margin-bottom:0.5rem;font-weight:600;color:var(--text-primary);}.form-group input,.form-group select{width:100%;padding:0.875rem 1rem;border:2px solid var(--border-color);border-radius:0.625rem;font-size:1rem;transition:var(--transition);background-color:var(--bg-white);color:var(--text-primary);}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 4px rgba(15,76,117,0.1);background-color:var(--bg-white);}.form-group input:hover,.form-group select:hover{border-color:var(--primary-light);}.helper-text{font-size:0.875rem;color:var(--text-light);margin-top:0.5rem;line-height:1.5;}.results-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1.25rem;border-bottom:2px solid var(--border-light);}.results-header h3{color:var(--primary-color);margin:0;}.tax-year-badge{background:linear-gradient(135deg,var(--primary-color),var(--primary-light));color:var(--text-on-dark);padding:0.5rem 1rem;border-radius:0.5rem;font-size:0.875rem;font-weight:700;box-shadow:var(--shadow-sm);letter-spacing:0.3px;}.result-item{margin-bottom:1.25rem;padding:1.25rem;background:linear-gradient(135deg,var(--bg-light),var(--bg-lighter));border-radius:0.75rem;border:1px solid var(--border-light);transition:var(--transition);}.result-item:hover{transform:translateX(4px);box-shadow:var(--shadow-md);}.result-label{font-size:0.875rem;color:var(--text-secondary);margin-bottom:0.5rem;font-weight:600;text-transform:uppercase;letter-spacing:0.5px;}.result-value{font-size:1.75rem;font-weight:800;color:var(--text-primary);letter-spacing:-0.5px;}.result-value.highlight{color:var(--secondary-color);font-size:2rem;}.loading{display:none;text-align:center;padding:2rem;}.loading.active{display:block;}.spinner{border:4px solid var(--border-light);border-top:4px solid var(--primary-color);border-radius:50%;width:48px;height:48px;animation:spin 0.8s linear infinite;margin:0 auto 1rem;}.loading p{color:var(--text-secondary);font-weight:600;}@keyframes spin{0%{transform:rotate(0deg);}100%{transform:rotate(360deg);}}.disclaimer-box{background-color:var(--info-bg);border-left:4px solid var(--info-color);padding:1.25rem;border-radius:0.75rem;margin-top:2rem;box-shadow:var(--shadow-sm);}.disclaimer-box p{font-size:0.9rem;color:var(--info-text);margin:0;line-height:1.7;}.disclaimer-box strong{color:var(--primary-color);font-weight:700;}section{padding:5rem 0;}section h2{font-size:2.75rem;margin-bottom:1rem;color:var(--text-primary);text-align:center;font-weight:800;letter-spacing:-1px;}section h3{font-size:1.75rem;margin-bottom:1rem;color:var(--primary-color);margin-top:2.5rem;font-weight:700;}section p{margin-bottom:1.25rem;color:var(--text-secondary);line-height:1.8;font-size:1.05rem;}.how-it-works{background-color:var(--bg-white);}.how-it-works-content{max-width:800px;margin:0 auto;}.how-it-works-content ul{margin-left:2rem;margin-bottom:1.5rem;}.how-it-works-content li{margin-bottom:0.75rem;color:var(--text-secondary);line-height:1.8;}.how-it-works-content li strong{color:var(--text-primary);font-weight:700;}.examples{background-color:var(--bg-light);}.examples-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:2rem;}.example-card{background-color:var(--bg-white);padding:2.5rem;border-radius:1rem;box-shadow:var(--shadow-md);transition:var(--transition);border:1px solid var(--border-light);height:100%;display:flex;flex-direction:column;}.example-card:hover{box-shadow:var(--shadow-xl);transform:translateY(-6px);border-color:var(--primary-light);}.example-card h3{color:var(--primary-color);margin-top:0;font-weight:700;font-size:1.5rem;margin-bottom:1rem;}.example-card p{margin-bottom:0.75rem;color:var(--text-secondary);}.example-card .example-value{font-size:1.5rem;font-weight:800;color:var(--primary-color);margin:1rem 0;padding:1rem;background:linear-gradient(135deg,var(--bg-light),var(--bg-lighter));border-radius:0.5rem;border-left:4px solid var(--secondary-color);}.example-card .helper-text{margin-top:auto;padding-top:1rem;border-top:1px solid var(--border-light);font-size:0.85rem;color:var(--text-light);}.faq{background-color:var(--bg-white);}.faq-list{max-width:800px;margin:0 auto;}.faq-item{margin-bottom:1.25rem;background-color:var(--bg-white);border-radius:0.75rem;overflow:hidden;border:1px solid var(--border-light);box-shadow:var(--shadow-sm);transition:var(--transition);}.faq-item:hover{box-shadow:var(--shadow-md);}.faq-item.active{border-color:var(--primary-light);box-shadow:var(--shadow-lg);}.faq-question{padding:1.5rem;font-weight:700;color:var(--text-primary);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:var(--transition);font-size:1.05rem;}.faq-question:hover{background-color:var(--bg-light);color:var(--primary-color);}.faq-item.active .faq-question{background-color:var(--bg-light);color:var(--primary-color);}.faq-answer{padding:0 1.5rem 1.5rem 1.5rem;color:var(--text-secondary);display:none;line-height:1.8;}.faq-answer.active{display:block;}.faq-toggle{font-size:1.25rem;color:var(--primary-color);transition:var(--transition);flex-shrink:0;margin-left:1rem;}.faq-item.active .faq-toggle{transform:rotate(180deg);}.disclaimer-section{background:linear-gradient(135deg,var(--error-bg) 0%,#fff5f5 100%);border-top:4px solid var(--error-color);padding:4rem 2rem;}.disclaimer-content{max-width:900px;margin:0 auto;text-align:center;}.disclaimer-content h2{color:var(--error-color);margin-bottom:1.5rem;font-weight:800;}.disclaimer-content p{color:var(--error-text);font-weight:600;line-height:1.8;font-size:1.05rem;}footer{background:linear-gradient(135deg,var(--bg-dark) 0%,#2d3748 100%);color:var(--text-on-dark);padding:4rem 2rem 2.5rem;text-align:center;}.footer-content{max-width:1200px;margin:0 auto;}.footer-content > p:first-child{font-size:1.5rem;font-weight:800;color:var(--text-on-dark);margin-bottom:1rem;}.footer-links{display:flex;justify-content:center;gap:2.5rem;margin:2rem 0;flex-wrap:wrap;}.footer-links a{color:var(--text-on-dark);text-decoration:none;font-weight:600;transition:var(--transition);opacity:0.9;padding:0.5rem 0;position:relative;}.footer-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background-color:var(--secondary-color);transition:var(--transition);}.footer-links a:hover{opacity:1;color:var(--secondary-color);}.footer-links a:hover::after{width:100%;}.footer-content p:not(:first-child){color:rgba(255,255,255,0.8);margin-bottom:0.75rem;}.footer-note{margin-top:2.5rem;padding-top:2rem;border-top:1px solid rgba(255,255,255,0.15);font-size:0.9rem;color:rgba(255,255,255,0.7);line-height:1.6;}.modal{display:none;position:fixed;z-index:2000;left:0;top:0;width:100%;height:100%;overflow:auto;background-color:rgba(0,0,0,0.6);backdrop-filter:blur(4px);}.modal.active{display:flex;align-items:center;justify-content:center;padding:2rem;}.modal-content{background-color:var(--bg-white);margin:auto;padding:2.5rem;border-radius:1rem;max-width:900px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-xl);position:relative;animation:modalSlideIn 0.3s ease-out;}@keyframes modalSlideIn{from{opacity:0;transform:translateY(-30px);}to{opacity:1;transform:translateY(0);}}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:2px solid var(--border-light);}.modal-header h2{margin:0;color:var(--primary-color);font-size:2rem;}.close-modal{background:none;border:none;font-size:2rem;color:var(--text-secondary);cursor:pointer;padding:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:var(--transition);}.close-modal:hover{background-color:var(--bg-light);color:var(--primary-color);}.slabs-table{width:100%;border-collapse:collapse;margin:1.5rem 0;box-shadow:var(--shadow-sm);border-radius:0.5rem;overflow:hidden;}.slabs-table thead{background:linear-gradient(135deg,var(--primary-color),var(--primary-light));color:var(--text-on-dark);}.slabs-table th{padding:1rem;text-align:left;font-weight:700;font-size:0.95rem;text-transform:uppercase;letter-spacing:0.5px;}.slabs-table td{padding:1rem;border-bottom:1px solid var(--border-light);color:var(--text-secondary);}.slabs-table tbody tr:hover{background-color:var(--bg-light);}.slabs-table tbody tr:last-child td{border-bottom:none;}.slabs-section{margin-bottom:2.5rem;}.slabs-section h3{color:var(--primary-color);margin-bottom:1rem;font-size:1.5rem;}.calculation-breakdown{background:linear-gradient(135deg,var(--bg-light),var(--bg-lighter));padding:1.5rem;border-radius:0.75rem;margin-top:1.5rem;border-left:4px solid var(--secondary-color);}.calculation-breakdown h4{color:var(--primary-color);margin-bottom:1rem;font-size:1.2rem;}.breakdown-item{display:flex;justify-content:space-between;padding:0.75rem 0;border-bottom:1px solid var(--border-light);}.breakdown-item:last-child{border-bottom:none;font-weight:700;font-size:1.1rem;color:var(--primary-color);padding-top:1rem;margin-top:0.5rem;border-top:2px solid var(--border-color);}.breakdown-label{color:var(--text-secondary);}.breakdown-value{color:var(--text-primary);font-weight:600;}@media (max-width:768px){.nav-links{display:none;position:absolute;top:100%;left:0;right:0;background-color:rgba(255,255,255,0.98);flex-direction:column;padding:1.5rem;box-shadow:var(--shadow-xl);gap:1.5rem;border-top:1px solid var(--border-light);}header:not(.scrolled) .nav-links{background-color:rgba(15,76,117,0.95);}.nav-links.active{display:flex;}.nav-links a{padding:0.75rem 0;border-bottom:1px solid var(--border-light);}header:not(.scrolled) .nav-links a{color:var(--text-on-dark);border-bottom-color:rgba(255,255,255,0.2);}.nav-links a:last-child{border-bottom:none;}.mobile-menu-toggle{display:block;}.hero{padding:6rem 1.5rem 3rem;min-height:100vh;}.hero h1{font-size:2rem;}.hero p{font-size:1.05rem;}.hero::before{background-attachment:scroll;}.calculator-wrapper{grid-template-columns:1fr;gap:2rem;}.calculator-form,.calculator-results{padding:2rem;}.examples-grid{grid-template-columns:1fr;}section{padding:3rem 0;}section h2{font-size:2rem;}.result-value{font-size:1.5rem;}.result-value.highlight{font-size:1.75rem;}}@media (max-width:480px){nav{padding:1rem 1.5rem;}.logo{font-size:1.5rem;}.container{padding:0 1.5rem;}.hero{padding:2.5rem 1rem;}.hero h1{font-size:1.75rem;}.hero p{font-size:1rem;}.btn-primary{padding:0.875rem 2rem;font-size:1rem;}section{padding:2.5rem 0;}section h2{font-size:1.75rem;}.calculator-form,.calculator-results{padding:1.5rem;}.example-card{padding:1.5rem;}.faq-question{padding:1.25rem;font-size:1rem;}.faq-answer{padding:0 1.25rem 1.25rem 1.25rem;}.modal-content{padding:1.5rem;max-height:95vh;}.modal-header h2{font-size:1.5rem;}.slabs-table{font-size:0.9rem;}.slabs-table th,.slabs-table td{padding:0.75rem 0.5rem;}}