:root{--color-bg: #fafaf9;--color-text: #1c1917;--color-accent: #f59e0b;--color-border: #e7e5e4;--color-input-bg: #f5f5f4;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--radius: .375rem;--transition: .15s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}html{font-family:var(--font-sans);color:var(--color-text);background-color:var(--color-bg);scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{line-height:1.6;font-size:1rem;min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-accent);text-decoration:none;transition:opacity var(--transition)}a:hover{opacity:.8}h1{font-size:2.25rem;font-weight:700;line-height:1.2;margin-bottom:var(--space-lg)}h2{font-size:1.875rem;font-weight:700;line-height:1.3;margin-top:var(--space-xl);margin-bottom:var(--space-lg)}h3{font-size:1.25rem;font-weight:600;margin-top:var(--space-lg);margin-bottom:var(--space-md)}p{margin-bottom:var(--space-md)}button{font-family:inherit;cursor:pointer;border:none;border-radius:var(--radius);padding:.625rem 1rem;font-size:.875rem;font-weight:500;background-color:var(--color-accent);color:#fff;transition:opacity var(--transition);min-height:44px;min-width:44px}button:hover{opacity:.9}button:active{opacity:.95}input,select{font-family:inherit;font-size:1rem;border:1px solid var(--color-border);border-radius:var(--radius);padding:.625rem .75rem;background-color:var(--color-input-bg);color:var(--color-text);min-height:44px;transition:border-color var(--transition)}input:focus,select:focus{outline:none;border-color:var(--color-accent)}input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield}label{display:block;font-weight:500;margin-bottom:var(--space-sm);font-size:.875rem}table{width:100%;border-collapse:collapse;margin-top:var(--space-md);font-size:.875rem}th{background-color:var(--color-input-bg);padding:var(--space-sm) var(--space-xs);text-align:left;font-weight:600;border-bottom:2px solid var(--color-border)}td{padding:var(--space-sm) var(--space-xs);border-bottom:1px solid var(--color-border)}tr:hover{background-color:#f59e0b0d}.container{max-width:900px;margin:0 auto;padding:var(--space-lg)}.text-sm{font-size:.875rem;color:#78716b}.text-xs{font-size:.75rem;color:#a8a29e}.mb-md{margin-bottom:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.text-accent{color:var(--color-accent)}.hidden{display:none}@media (max-width: 640px){h1{font-size:1.5rem}h2{font-size:1.25rem}.container{padding:var(--space-md)}table{font-size:.75rem}th,td{padding:var(--space-xs)}}.calc-wrapper{background-color:#fff;border:1px solid var(--color-border);border-radius:.5rem;padding:1.5rem;margin-bottom:2rem}.input-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:1.5rem}.input-group{display:flex;flex-direction:column}.results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem;padding:1.5rem;background-color:#fafaf9;border-radius:.375rem}.result-card{text-align:center}.result-label{font-size:.875rem;color:#78716b;margin-bottom:.5rem}.result-value{font-size:1.5rem;font-weight:700;color:var(--color-text)}.button-group{display:flex;gap:1rem;margin-bottom:1.5rem}.button-group button{flex:1}.table-wrapper{overflow-x:auto;margin-top:1.5rem}.table-toggle{display:flex;gap:.5rem;margin-bottom:1rem}.table-toggle button{padding:.5rem 1rem;font-size:.875rem;background-color:var(--color-input-bg);color:var(--color-text);border:1px solid var(--color-border)}.table-toggle button.active{background-color:var(--color-accent);color:#fff;border-color:var(--color-accent)}@media (max-width: 640px){.calc-wrapper{padding:1rem}.input-grid{grid-template-columns:1fr;gap:1rem}.results-grid{grid-template-columns:1fr;gap:1rem;padding:1rem}.button-group{flex-direction:column}.table-wrapper{margin-top:1rem}}