:root{--bg: #ffffff;--bg-secondary: #f0f9ff;--card: #ffffff;--text: #0f172a;--text-muted: #6b7280;--primary: #0f766e;--primary-light: #14b8a6;--accent: #f59e0b;--accent-hover: #d97706;--success: #22c55e;--danger: #ef4444;--warning: #f59e0b;--diagram-full: #22c55e;--diagram-cut: #f59e0b;--diagram-waste: #ef4444;--diagram-bg: #e5e7eb;--border: rgba(0, 0, 0, .1);--shadow: 0 1px 3px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--glass: rgba(255, 255, 255, .85);--hover-bg: rgba(0, 0, 0, .05);--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 24px;--spacing-2xl: 32px;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 10px;--radius-xl: 12px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace}html[data-theme=dark]{--bg: #0f172a;--bg-secondary: #1e293b;--card: #1e293b;--text: #f1f5f9;--text-muted: #94a3b8;--primary: #14b8a6;--primary-light: #2dd4bf;--accent: #fbbf24;--accent-hover: #f59e0b;--success: #22c55e;--danger: #ef4444;--warning: #f59e0b;--diagram-full: #22c55e;--diagram-cut: #f59e0b;--diagram-waste: #ef4444;--diagram-bg: #334155;--border: rgba(255, 255, 255, .1);--shadow: 0 1px 3px rgba(0, 0, 0, .3), 0 1px 2px rgba(0, 0, 0, .2);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5), 0 4px 6px -2px rgba(0, 0, 0, .3);--glass: rgba(10, 20, 30, .9);--hover-bg: rgba(255, 255, 255, .1)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;padding:0;font-family:var(--font-sans);background-color:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .3s ease,color .3s ease}h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.2;color:var(--text)}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.125rem}h6{font-size:1rem}p{margin:0 0 1rem}a{color:var(--primary);text-decoration:none;transition:color .2s ease}a:hover{color:var(--primary-light)}button{font-family:var(--font-sans);cursor:pointer;border:none;outline:none;transition:all .2s ease}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:var(--radius-lg);font-size:14px;font-weight:600;text-decoration:none;transition:all .2s ease;gap:8px}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{filter:brightness(1.1);transform:translateY(-1px);box-shadow:var(--shadow);color:#fff}.btn-accent{background-color:var(--accent);color:#1a1a1a}.btn-accent:hover{background-color:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow)}.btn-secondary{background-color:var(--hover-bg);color:var(--text)}.btn-secondary:hover{background-color:#0000001a}html[data-theme=dark] .btn-secondary:hover{background-color:#ffffff26}.btn-success{background-color:var(--success);color:#fff}.btn-success:hover{filter:brightness(1.1)}.btn-lg{padding:14px 28px;font-size:16px}label{display:block;margin-bottom:6px;font-weight:600;font-size:13px;color:var(--text)}input[type=text],input[type=email],input[type=number],input[type=search],textarea,select{width:100%;padding:11px 14px;border-radius:var(--radius-lg);border:1px solid var(--border);font-size:14px;font-family:var(--font-sans);background-color:var(--glass);color:var(--text);transition:border-color .2s ease,box-shadow .2s ease}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #0f766e26}input::placeholder,textarea::placeholder{color:var(--text-muted);opacity:.6}.input-group{margin-bottom:var(--spacing-lg)}.input-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:var(--spacing-md)}.input-suffix{display:flex;align-items:center;gap:var(--spacing-sm)}.input-suffix input{flex:1}.input-suffix span{font-size:13px;color:var(--text-muted);white-space:nowrap}.card{background-color:var(--card);border-radius:var(--radius-xl);padding:var(--spacing-xl);box-shadow:var(--shadow);border:1px solid var(--border)}.panel{background-color:var(--card);border-radius:var(--radius-lg);padding:var(--spacing-lg);border:1px solid var(--border)}.result-panel{background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--card) 100%);border-radius:var(--radius-xl);padding:var(--spacing-xl);border:2px solid var(--primary)}.result-row{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-sm) 0;border-bottom:1px solid var(--border)}.result-row:last-child{border-bottom:none}.result-label{font-size:14px;color:var(--text-muted)}.result-value{font-size:18px;font-weight:700;color:var(--text);font-family:var(--font-mono)}.result-highlight{font-size:2rem;font-weight:800;color:var(--primary);font-family:var(--font-mono)}.diagram-container{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:var(--spacing-xl);overflow-x:auto}.diagram-container svg{width:100%;height:auto}.diagram-legend{display:flex;flex-wrap:wrap;gap:var(--spacing-lg);margin-top:var(--spacing-lg);font-size:13px}.legend-item{display:flex;align-items:center;gap:var(--spacing-sm)}.legend-swatch{width:16px;height:16px;border-radius:3px}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-lg)}.container-narrow{max-width:800px;margin:0 auto;padding:0 var(--spacing-lg)}.text-muted{color:var(--text-muted)}.text-center{text-align:center}.text-sm{font-size:13px}.text-xs{font-size:12px}.font-bold{font-weight:700}.font-semibold{font-weight:600}.font-mono{font-family:var(--font-mono)}.mt-1{margin-top:var(--spacing-sm)}.mt-2{margin-top:var(--spacing-md)}.mt-3{margin-top:var(--spacing-lg)}.mt-4{margin-top:var(--spacing-xl)}.mb-1{margin-bottom:var(--spacing-sm)}.mb-2{margin-bottom:var(--spacing-md)}.mb-3{margin-bottom:var(--spacing-lg)}.mb-4{margin-bottom:var(--spacing-xl)}.p-1{padding:var(--spacing-sm)}.p-2{padding:var(--spacing-md)}.p-3{padding:var(--spacing-lg)}.p-4{padding:var(--spacing-xl)}.flex{display:flex}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:var(--spacing-sm)}.gap-2{gap:var(--spacing-md)}.gap-3{gap:var(--spacing-lg)}.gap-4{gap:var(--spacing-xl)}.seo-content{background:var(--bg);border-top:1px solid var(--border)}.seo-inner{max-width:800px;margin:0 auto;padding:3rem 1.5rem 4rem}.content-section{margin-bottom:3rem}.content-section:last-child{margin-bottom:0}.content-section h2{font-size:1.5rem;margin-bottom:1rem;color:var(--text)}.content-section p{color:var(--text-muted);line-height:1.7;margin-bottom:1rem}.content-section ol,.content-section ul{color:var(--text-muted);line-height:1.7;margin:1rem 0;padding-left:1.5rem}.content-section li{margin-bottom:.5rem}.content-section a{color:var(--primary);text-decoration:underline}.content-section a:hover{text-decoration:none}hr{border:0;height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent);margin:var(--spacing-lg) 0}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#0003;border-radius:10px}html[data-theme=dark] ::-webkit-scrollbar-thumb{background:#fff3}::-webkit-scrollbar-thumb:hover{background:#0000004d}html[data-theme=dark] ::-webkit-scrollbar-thumb:hover{background:#ffffff4d}@media(max-width:768px){h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.5rem}.container{padding:0 var(--spacing-md)}.seo-inner{padding:2rem 1rem 3rem}.input-row{grid-template-columns:1fr}}@media(max-width:480px){h1{font-size:1.75rem}h2{font-size:1.5rem}h3{font-size:1.25rem}}@media print{.no-print{display:none!important}}