:root{--primary-color: #2563EB;--primary-gradient: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);--secondary-color: #64748B;--success-color: #10B981;--error-color: #EF4444;--bg-color: #F8FAFC;--card-bg: rgba(255, 255, 255, .9);--glass-border: 1px solid rgba(255, 255, 255, .5);--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 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);--font-family: "Inter", system-ui, -apple-system, sans-serif}body{margin:0;font-family:var(--font-family);background-color:var(--bg-color);background-image:radial-gradient(at 0% 0%,#100f1500 0 50%),radial-gradient(at 50% 0%,#2f3e6a00 0 50%),radial-gradient(at 100% 0%,#72274100 0 50%);background:radial-gradient(circle at 15% 50%,rgba(37,99,235,.08),transparent 25%),radial-gradient(circle at 85% 30%,rgba(16,185,129,.08),transparent 25%);color:#1e293b;min-height:100vh;-webkit-font-smoothing:antialiased}.app-container{max-width:1200px;margin:0 auto;padding:2rem}.app-header{text-align:center;margin-bottom:3rem;animation:fadeInDown .8s ease-out}.app-header h1{font-size:2.5rem;font-weight:800;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:0 0 .5rem;letter-spacing:-.02em}.app-header p{color:var(--secondary-color);font-size:1.125rem;margin:0}.calculator-container{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}@media(max-width:768px){.calculator-container{grid-template-columns:1fr}}.input-section,.results-section{background:var(--card-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:var(--glass-border);border-radius:1.5rem;padding:2rem;box-shadow:var(--shadow-lg);transition:transform .3s ease}.input-section h2{margin-top:0;color:#334155;font-size:1.5rem;border-bottom:2px solid #f1f5f9;padding-bottom:1rem;margin-bottom:1.5rem}.input-group{margin-bottom:1.5rem}.input-group label{display:block;font-weight:600;margin-bottom:.5rem;color:#475569;font-size:.95rem}.input-group label span{font-weight:400;color:#94a3b8;font-size:.85rem;margin-left:.5rem}.input-group input[type=number]{width:100%;padding:.75rem 1rem;border:1px solid #e2e8f0;border-radius:.75rem;font-size:1rem;font-weight:500;transition:all .2s;background:#fff;box-sizing:border-box}.input-group input[type=number]:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.slider-container,.range-wrapper{margin-top:.5rem;display:flex;align-items:center;gap:1rem}input[type=range]{-webkit-appearance:none;width:100%;height:6px;border-radius:3px;background:#e2e8f0;outline:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary-color);cursor:pointer;border:2px solid white;box-shadow:0 1px 3px #0000004d;transition:transform .1s}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.1)}.range-value{font-weight:600;color:var(--primary-color);min-width:3rem;text-align:right}.advanced-options{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:2rem;padding-top:1.5rem;border-top:1px dashed #cbd5e1}.input-group.small input[type=number]{padding:.5rem;font-size:.9rem}.results-section{background:transparent;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;padding:0;border:none;display:flex;flex-direction:column;gap:1.5rem}.result-card{background:#fff;padding:2rem;border-radius:1.5rem;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.6);position:relative;overflow:hidden;animation:slideInUp .6s ease-out}.result-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:6px}.loss-card:before{background:var(--error-color)}.payback-card:before{background:var(--success-color)}.result-card h3{margin:0 0 1rem;color:#64748b;font-size:.9rem;text-transform:uppercase;letter-spacing:.05em;font-weight:700}.big-number{font-size:2.5rem;font-weight:800;margin-bottom:1rem;line-height:1.2}.error-color{color:var(--error-color)}.success-color{color:var(--success-color)}.breakdown p{margin:.5rem 0;color:#475569;font-size:.95rem;display:flex;justify-content:space-between;border-bottom:1px solid #f1f5f9;padding-bottom:.25rem}.subtext{color:#94a3b8;font-size:.85rem;margin-top:.5rem}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}