:root{--primary-color:#2563eb;--primary-hover:#1d4ed8;--primary-active:#1e40af;--secondary-color:#475569;--background-color:#f8fafc;--card-background:#fff;--text-color:#334155;--text-bold:#0f172a;--text-secondary:#64748b;--border-color:#e2e8f0;--input-bg:#f1f5f9;--dropdown-bg:#fff;--dropdown-hover:#f1f5f9;--dropdown-active:#e2e8f0;--box-shadow:0 4px 12px #0000000d,0 1px 3px #0000001a;--transition:all 0.25s ease;--navbar-text:#475569;--success-color:#10b981;--error-color:#ef4444;--warning-color:#f59e0b;--info-color:#3b82f6;--button-radius:6px;--card-radius:12px;--focus-ring:0 0 0 3px #3b82f680}[data-theme=dark]{--primary-color:#3b82f6;--primary-hover:#60a5fa;--primary-active:#2563eb;--secondary-color:#94a3b8;--background-color:#0f172a;--card-background:#1e293b;--text-color:#e2e8f0;--text-bold:#f1f5f9;--text-secondary:#cbd5e1;--border-color:#334155;--input-bg:#1e293b;--dropdown-bg:#1e293b;--dropdown-hover:#334155;--dropdown-active:#475569;--box-shadow:0 4px 12px #0000004d,0 1px 3px #0006;--success-color:#34d399;--error-color:#f87171;--warning-color:#fbbf24;--info-color:#60a5fa}*{box-sizing:border-box;padding:0;transition:background-color .3s ease,border-color .3s ease,color .2s ease}*,body{margin:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f8fafc;background-color:var(--background-color);color:#334155;color:var(--text-color);font-family:Inter,Segoe UI,system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.6}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}button,input,select,textarea{color:#334155;color:var(--text-color);font-family:inherit;transition:background-color .2s,color .2s,border-color .2s,box-shadow .2s}h1,h2,h3,h4,h5,h6{color:#0f172a;color:var(--text-bold);font-weight:600;line-height:1.3;margin-bottom:.75em}h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.5rem}a{color:#2563eb;color:var(--primary-color);text-decoration:none;transition:color .2s ease,transform .2s ease}a:hover{color:#1d4ed8;color:var(--primary-hover)}.button,button{align-items:center;background-color:#2563eb;background-color:var(--primary-color);border:none;border-radius:6px;border-radius:var(--button-radius);box-shadow:0 1px 3px #0000001a;color:#fff;cursor:pointer;display:inline-flex;font-weight:500;justify-content:center;padding:.75rem 1.5rem;transition:background-color .2s,transform .1s,box-shadow .2s}.button:hover,button:hover{background-color:#1d4ed8;background-color:var(--primary-hover);box-shadow:0 2px 4px #00000026;transform:translateY(-1px)}.button:active,button:active{background-color:#1e40af;background-color:var(--primary-active);box-shadow:0 1px 2px #0000001a;transform:translateY(0)}.button:focus,button:focus{box-shadow:0 0 0 3px #3b82f680;box-shadow:var(--focus-ring);outline:none}input,select,textarea{background-color:#f1f5f9;background-color:var(--input-bg);border:1px solid #e2e8f0;border:1px solid var(--border-color);border-radius:6px;border-radius:var(--button-radius);font-size:1rem;padding:.75rem 1rem;transition:border-color .2s,box-shadow .2s;width:100%}input:focus,select:focus,textarea:focus{border-color:#2563eb;border-color:var(--primary-color);box-shadow:0 0 0 3px #3b82f680;box-shadow:var(--focus-ring);outline:none}::placeholder,[data-theme=dark] ::placeholder{color:#64748b;color:var(--text-secondary);opacity:.7}[data-theme=dark] .amount,[data-theme=dark] .payment,[data-theme=dark] .result h3{color:#3b82f6;color:var(--info-color)}.container{margin:0 auto;max-width:1200px;padding:0 1rem;width:100%}@media (min-width:640px){.container{padding:0 1.5rem}}@media (min-width:1024px){.container{padding:0 2rem}}.navbar{align-items:center;background-color:var(--card-background);border-bottom:1px solid var(--border-color);box-shadow:var(--box-shadow);display:flex;flex-wrap:wrap;justify-content:center;padding:1rem 2rem;position:sticky;top:0;z-index:100}.navbar h1{color:var(--primary-color);font-size:1.5rem;font-weight:700;letter-spacing:-.5px;margin:0}.navbar ul{display:flex;flex-grow:1;flex-wrap:wrap;justify-content:center;list-style-type:none;margin:0;padding:0}.navbar li{margin-right:.25rem;position:relative}.navbar a{align-items:center;border-radius:var(--button-radius);color:var(--text-color);display:flex;font-size:.95rem;font-weight:500;justify-content:center;overflow:hidden;padding:.75rem 1rem;text-decoration:none;transition:all .3s ease}.navbar a .nav-text{position:relative;z-index:2}.navbar a .nav-animation{animation:pulse 1s infinite alternate;background-color:var(--primary-color);border-radius:var(--button-radius);height:100%;left:0;opacity:.1;position:absolute;top:0;transform:scale(0);width:100%;z-index:1}@keyframes pulse{0%{transform:scale(.95)}to{transform:scale(1.05)}}.navbar a:hover{color:var(--primary-color)}.navbar a.active{background-color:var(--primary-color);box-shadow:0 2px 4px #0000001a;color:#fff;font-weight:600;transform:translateY(-2px)}.navbar a.active:hover{color:#fff}.navbar a:before{background-color:#3b82f633;border-radius:50%;content:"";height:0;left:50%;position:absolute;top:50%;transform:translate(-50%,-50%);transition:width .6s ease,height .6s ease;width:0;z-index:1}.navbar a:hover:before{height:300px;width:300px}.navbar a.active:before{background-color:initial}@media (max-width:991px){.navbar{flex-direction:column;padding:1rem}.navbar h1{font-size:1.35rem;margin-bottom:1rem}.navbar ul{-webkit-overflow-scrolling:touch;justify-content:center;margin-bottom:1rem;margin-left:0;overflow-x:auto;padding:.5rem 0;scrollbar-width:thin;white-space:nowrap;width:100%}.navbar li{flex-shrink:0;margin:0 .25rem}.navbar a{font-size:.875rem;padding:.5rem .75rem}.navbar-actions{align-items:center;display:flex;justify-content:center;margin-top:.5rem;width:100%}}.navbar a{position:relative}.navbar a:after{background-color:var(--primary-color);bottom:0;content:"";height:2px;left:50%;opacity:0;position:absolute;transform:translateY(3px);transition:width .2s ease,left .2s ease;width:0}.navbar a.active:after,.navbar a:hover:after{left:10%;opacity:1;width:80%}.theme-toggle{margin-left:auto}@media (max-width:991px){.theme-toggle{margin:0;position:absolute;right:1rem;top:1rem}}.dropdown{position:relative}.dropdown-menu{background-color:var(--dropdown-bg);border-radius:var(--button-radius);box-shadow:var(--box-shadow);left:0;min-width:180px;opacity:0;padding:.5rem 0;position:absolute;top:100%;transform:translateY(-10px);transform-origin:top;transition:opacity .2s ease,transform .2s ease,visibility .2s;visibility:hidden;z-index:10}.dropdown:hover .dropdown-menu{opacity:1;transform:translateY(0);visibility:visible}.dropdown-item{color:var(--text-color);display:block;padding:.5rem 1rem;transition:background-color .2s}.dropdown-item:hover{background-color:var(--dropdown-hover);color:var(--primary-color)}.navbar-actions{align-items:center;display:flex;gap:1rem}@media (min-width:992px){.navbar{justify-content:space-between}.navbar-left{align-items:center;display:flex}.navbar ul{flex-grow:0;margin-left:2rem}}.theme-toggle{align-items:center;background-color:var(--card-background);border:2px solid var(--border-color);border-radius:50%;color:var(--text-color);cursor:pointer;display:flex;height:44px;justify-content:center;overflow:hidden;padding:0;position:relative;transition:all .3s ease;width:44px}.toggle-icon{font-size:1.3rem;line-height:1;position:relative;transition:transform .3s ease;z-index:2}.toggle-ripple{background-color:var(--primary-color);border-radius:50%;height:0;left:50%;opacity:.2;position:absolute;top:50%;transform:translate(-50%,-50%);transition:width .6s ease,height .6s ease;width:0}.theme-toggle:active .toggle-ripple{height:120px;width:120px}.theme-toggle:hover{box-shadow:0 0 15px #3b82f64d;transform:scale(1.1)}.theme-toggle:active{transform:scale(.95)}.theme-toggle.light{background-color:#e2e8f0}.theme-toggle.dark{background-color:#1e293b}.theme-toggle:hover .toggle-icon{transform:rotate(30deg) scale(1.2)}.theme-toggle:focus{box-shadow:0 0 0 3px var(--primary-color);outline:none}[data-theme=dark] .theme-toggle{border-color:#334155}@media (max-width:768px){.theme-toggle{height:38px;width:38px}.toggle-icon{font-size:1.1rem}}.calculator{background-color:var(--card-background);border-radius:var(--card-radius);box-shadow:var(--box-shadow);margin:2rem auto;max-width:700px;overflow:hidden;padding:2rem;position:relative;transition:transform .3s ease,box-shadow .3s ease}.calculator:before{background:linear-gradient(90deg,var(--primary-color),var(--info-color));content:"";height:4px;left:0;position:absolute;top:0;width:100%}.calculator:hover{box-shadow:0 10px 20px #0000001a;transform:translateY(-5px)}.calculator h2{color:var(--text-bold);font-size:1.75rem;font-weight:700;margin-bottom:1.75rem;padding-bottom:.5rem;position:relative;text-align:center}.calculator h2:after{background-color:var(--primary-color);border-radius:3px;bottom:0;content:"";height:3px;left:50%;position:absolute;transform:translateX(-50%);width:80px}.input-group{margin-bottom:1.5rem}.input-group label{color:var(--text-bold);display:block;font-size:.95rem;font-weight:600;margin-bottom:.5rem}.input-group input,.input-group select{background-color:var(--input-bg);border:1px solid var(--border-color);border-radius:var(--button-radius);color:var(--text-color);font-size:1rem;padding:.85rem 1rem;transition:border-color .2s,box-shadow .2s;width:100%}.input-group input:focus,.input-group select:focus{border-color:var(--primary-color);box-shadow:var(--focus-ring);outline:none}.input-group input:hover,.input-group select:hover{border-color:var(--text-secondary)}button{background-color:var(--primary-color);border:none;border-radius:var(--button-radius);box-shadow:0 2px 4px #0000001a;color:#fff;cursor:pointer;font-size:1rem;font-weight:600;letter-spacing:.3px;padding:.9rem 1.5rem;transition:background-color .2s,transform .1s,box-shadow .2s;width:100%}button:hover{background-color:var(--primary-hover);box-shadow:0 4px 8px #00000026;transform:translateY(-2px)}button:active{box-shadow:0 1px 2px #0000001a;transform:translateY(0)}.result{animation:fadeInUp .5s ease forwards;background-color:#3b82f614;border:1px solid #3b82f633;border-radius:var(--card-radius);margin-top:2.5rem;padding:1.5rem;position:relative;text-align:center}.result h3{color:var(--text-bold);font-size:1.1rem;font-weight:600;margin-bottom:.75rem}.result p{background-color:#3b82f60a;border-radius:var(--button-radius);color:var(--primary-color);display:inline-block;font-size:1.5rem;font-weight:700;line-height:1.2;margin:0;padding:.5rem 1rem}.result p.secondary{background-color:initial;color:var(--text-secondary);font-size:1.1rem;margin-top:.75rem;padding:.25rem .5rem}.result-breakdown{grid-gap:1rem;display:grid;font-size:.95rem;gap:1rem;grid-template-columns:1fr 1fr;margin-top:1.5rem;text-align:left}.result-item{border-bottom:1px dashed var(--border-color);display:flex;justify-content:space-between;padding:.5rem 0}.result-item-label{color:var(--text-secondary)}.result-item-value{color:var(--text-color);font-weight:600}.chart-container{background-color:#ffffff0d;border-radius:var(--button-radius);height:250px;margin-top:2rem;padding:1rem;position:relative}@media (min-width:768px){.form-row{display:flex;gap:1.5rem}.form-row .input-group{flex:1 1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width:768px){.calculator{margin:1rem;padding:1.5rem}.result{padding:1rem}.result p{font-size:1.35rem;padding:.4rem .8rem}.result p.secondary{font-size:1rem}.result-breakdown{grid-template-columns:1fr}}.tooltip{cursor:help;display:inline-block;position:relative}.tooltip .tooltip-text{background-color:var(--card-background);border:1px solid var(--border-color);border-radius:6px;bottom:125%;box-shadow:var(--box-shadow);color:var(--text-color);font-size:.875rem;left:50%;margin-left:-100px;opacity:0;padding:.75rem;position:absolute;text-align:center;transition:opacity .3s;visibility:hidden;width:200px;z-index:1}.tooltip:hover .tooltip-text{opacity:1;visibility:visible}.app{background-color:var(--background-color);color:var(--text-color);display:flex;flex-direction:column;font-family:Inter,Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;min-height:100vh;transition:background-color .3s ease,color .3s ease}.main-content{animation:fadeIn .5s ease;flex:1 1;margin:0 auto;max-width:1200px;padding:2rem;width:100%}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.loading{align-items:center;background-color:var(--background-color);display:flex;height:100vh;justify-content:center;left:0;position:fixed;top:0;width:100%;z-index:9999}.loading-spinner{animation:spin 1s linear infinite;border:4px solid var(--border-color);border-radius:50%;border-top-color:var(--primary-color);height:50px;width:50px}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.section{margin-bottom:3rem}.section-title{color:var(--text-bold);display:inline-block;font-size:1.5rem;margin-bottom:1.5rem;position:relative}.section-title:after{background-color:var(--primary-color);border-radius:3px;bottom:-8px;content:"";height:3px;left:0;position:absolute;width:60px}.error-message{background-color:#ef44441a;border-left:4px solid var(--error-color)}.error-message,.success-message{border-radius:4px;color:var(--text-color);margin-bottom:1.5rem;padding:1rem}.success-message{background-color:#10b9811a;border-left:4px solid var(--success-color)}.info-card{background-color:var(--card-background);border-left:4px solid var(--info-color);border-radius:var(--card-radius);box-shadow:var(--box-shadow);margin-bottom:1.5rem;padding:1.5rem}.info-card h3{color:var(--text-bold);font-size:1.25rem;margin-bottom:.75rem;margin-top:0}.card-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));margin:1.5rem 0}.dashboard-card{background-color:var(--card-background);border-radius:var(--card-radius);box-shadow:var(--box-shadow);display:flex;flex-direction:column;padding:1.5rem;transition:transform .3s ease,box-shadow .3s ease}.dashboard-card:hover{box-shadow:0 8px 16px #0000001a;transform:translateY(-5px)}.dashboard-card h3{color:var(--text-bold);margin-bottom:1rem;margin-top:0}@media (max-width:768px){.main-content{padding:1.5rem}.card-grid{grid-template-columns:1fr}}[data-theme=dark] .app{background-color:var(--background-color);color:var(--text-color)}[data-theme=dark] .calculator{background-color:var(--card-background);box-shadow:var(--box-shadow)}[data-theme=dark] input,[data-theme=dark] select{background-color:var(--input-bg);border-color:var(--border-color);color:var(--text-color)}[data-theme=dark] .result{background-color:#3b82f61a;border-color:#3b82f633}[data-theme=light] .result{background-color:#3b82f614;border-color:#3b82f626}.footer{background-color:var(--card-background);border-top:1px solid var(--border-color);padding:1.5rem;text-align:center}.footer p{color:var(--text-secondary);font-size:.9rem;margin:0}.footer a{color:var(--primary-color)}
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