@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap";:root{--slate-950:#0a0d10;--slate-900:#0f1419;--slate-850:#141a21;--slate-800:#1a2029;--slate-750:#1f2733;--slate-700:#252e3c;--slate-600:#34404f;--slate-500:#4a5568;--slate-400:#6b7a8d;--slate-300:#8b9db0;--slate-200:#adbdce;--slate-100:#d1dce8;--gold-500:#d4a853;--gold-400:#e0b964;--gold-300:#eacc85;--gold-200:#f2dda8;--gold-600:#b8923e;--gold-glow:#d4a85326;--gold-glow-strong:#d4a8534d;--granite-blue:#6a8faa;--river-teal:#4a9e8e;--sandstone-warm:#c9a96e;--clay-red:#c47c5a;--moss-green:#6b9e6b;--limestone-cream:#e8dcc8;--status-good:#4ade80;--status-warn:#fbbf24;--status-danger:#f87171;--surface-base:var(--slate-900);--surface-raised:var(--slate-800);--surface-overlay:var(--slate-750);--surface-glass:#141a21bf;--surface-glass-border:#6b7a8d26;--font-body:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", 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1);--duration-fast:.15s;--duration-base:.25s;--duration-slow:.4s;--z-base:1;--z-raised:10;--z-overlay:100;--z-modal:1000;--z-toast:2000;--container-max:1280px;--container-narrow:960px}[data-theme=light]{--slate-950:#f4f6fa;--slate-900:#fff;--slate-850:#edf1f7;--slate-800:#e2e8f0;--slate-750:#cbd5e1;--slate-700:#94a3b8;--slate-600:#64748b;--slate-500:#475569;--slate-400:#334155;--slate-300:#1e293b;--slate-200:#0f172a;--slate-100:#020617;--gold-500:#b8860b;--gold-400:#996515;--gold-300:#7b5210;--gold-200:#5c3e0a;--gold-600:#8c6200;--gold-glow:#b8860b1f;--gold-glow-strong:#b8860b40;--surface-base:#fff;--surface-raised:#fff;--surface-overlay:#f1f5f9;--surface-glass:#ffffffeb;--surface-glass-border:#94a3b859;--text-primary:#0f172a;--text-secondary:#334155;--text-muted:#64748b;--text-inverse:#fff;--text-gold:#996515;--shadow-sm:0 1px 3px #0f172a0f;--shadow-md:0 4px 14px #0f172a14;--shadow-lg:0 10px 30px #0f172a1a;--shadow-xl:0 20px 40px #0f172a1f;--shadow-gold:0 4px 18px #b8860b38}[data-theme=light] body:before{opacity:.015}[data-theme=light] .site-header{background:#ffffffeb;border-bottom-color:#94a3b840}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility}body{font-family:var(--font-body);color:var(--text-primary);background-color:var(--slate-950);min-height:100vh;font-size:16px;line-height:1.6;overflow-x:hidden}body:before{content:"";pointer-events:none;z-index:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");background-repeat:repeat;position:fixed;inset:0}img,svg{max-width:100%;display:block}a{color:var(--gold-400);transition:color var(--duration-fast) var(--ease-smooth);text-decoration:none}a:hover{color:var(--gold-300)}button{cursor:pointer;color:inherit;background:0 0;border:none;font-family:inherit}input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;background:0 0;border:none;outline:none}ul,ol{list-style:none}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:700;line-height:1.2}h1{letter-spacing:-.03em;font-size:clamp(2rem,5vw,3.5rem)}h2{letter-spacing:-.02em;font-size:clamp(1.5rem,3.5vw,2.25rem)}h3{letter-spacing:-.01em;font-size:clamp(1.125rem,2.5vw,1.5rem)}h4{font-size:1.125rem}.text-gold{color:var(--text-gold)}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.font-mono{font-family:var(--font-mono)}.container{width:100%;max-width:var(--container-max);padding:0 var(--space-6);margin:0 auto}.container-narrow{max-width:var(--container-narrow)}.glass-card{background:var(--surface-glass);-webkit-backdrop-filter:blur(20px);border:1px solid 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input::placeholder{color:var(--text-muted);font-family:var(--font-body);font-weight:400}.input-field .unit-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;padding:var(--space-1) var(--space-2);background:var(--slate-800);border-radius:var(--radius-sm);font-size:.75rem;font-weight:600}.section{padding:var(--space-20) 0;z-index:var(--z-base);position:relative}.section-header{text-align:center;margin-bottom:var(--space-12)}.section-header h2{margin-bottom:var(--space-3)}.section-header p{color:var(--text-secondary);max-width:600px;margin:0 auto;font-size:1.05rem}.section-divider{background:linear-gradient(90deg, var(--gold-500), var(--gold-600));border-radius:var(--radius-full);width:60px;height:3px;margin:var(--space-4) auto}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}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}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--slate-900)}::-webkit-scrollbar-thumb{background:var(--slate-600);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--slate-500)}::selection{background:var(--gold-glow-strong);color:var(--text-primary)}@media print{body{color:#000;background:#fff}body:before{display:none}.no-print{display:none!important}}.calc-wrapper{gap:var(--space-8);grid-template-columns:1fr 1fr;align-items:start;display:grid}@media (width<=1024px){.calc-wrapper{grid-template-columns:1fr}}.calc-panel{background:var(--surface-raised);border:1px solid 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var(--duration-base) var(--ease-smooth)}.shape-tab span{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);transition:color var(--duration-base) var(--ease-smooth);font-size:.65rem;font-weight:600}.shape-tab:hover{background:var(--slate-750);border-color:var(--slate-600)}.shape-tab:hover svg{color:var(--text-secondary)}.shape-tab.active{background:var(--gold-glow);border-color:var(--gold-500)}.shape-tab.active svg,.shape-tab.active span{color:var(--gold-400)}.dim-grid{gap:var(--space-3);box-sizing:border-box;width:100%;max-width:100%;margin-bottom:var(--space-6);grid-template-columns:repeat(auto-fit,minmax(130px,1fr));display:grid}.dim-grid.single-col{grid-template-columns:1fr}.dim-grid .input-group{box-sizing:border-box;width:100%;min-width:0}.dim-grid .input-field{box-sizing:border-box;width:100%;min-width:0;max-width:100%;padding:var(--space-2) var(--space-3)}.dim-grid .input-field input{width:100%;min-width:0}.unit-toggle{background:var(--slate-850);border:1px solid var(--slate-700);border-radius:var(--radius-md);margin-bottom:var(--space-4);padding:2px;display:flex}.unit-toggle button{padding:var(--space-2) var(--space-3);letter-spacing:.04em;color:var(--text-muted);border-radius:var(--radius-sm);transition:all var(--duration-fast) var(--ease-smooth);flex:1;font-size:.75rem;font-weight:600}.unit-toggle button.active{background:var(--slate-700);color:var(--text-primary);box-shadow:var(--shadow-sm)}.unit-toggle button:hover:not(.active){color:var(--text-secondary)}.material-grid{gap:var(--space-3);margin-bottom:var(--space-6);grid-template-columns:repeat(auto-fill,minmax(140px,1fr));display:grid}.material-card{gap:var(--space-2);padding:var(--space-3);background:var(--slate-850);border-radius:var(--radius-md);cursor:pointer;transition:all var(--duration-base) var(--ease-smooth);text-align:center;border:2px solid #0000;flex-direction:column;display:flex}.material-card:hover{background:var(--slate-800);border-color:var(--slate-600);box-shadow:var(--shadow-md);transform:translateY(-2px)}.material-card.active{border-color:var(--gold-500);background:var(--gold-glow);box-shadow:var(--shadow-gold)}.material-swatch{width:40px;height:40px;box-shadow:var(--shadow-inner);border-radius:50%;margin:0 auto}.material-card .material-name{color:var(--text-primary);font-size:.75rem;font-weight:600;line-height:1.3}.material-card .material-density{font-size:.625rem;font-family:var(--font-mono);color:var(--text-muted)}.depth-control{margin-bottom:var(--space-6)}.depth-slider-track{padding:var(--space-4) 0;position:relative}.depth-slider{-webkit-appearance:none;appearance:none;border-radius:var(--radius-full);background:linear-gradient(90deg, var(--slate-700) 0%, var(--gold-500) var(--slider-fill,50%), var(--slate-700) var(--slider-fill,50%));width:100%;height:8px;transition:background var(--duration-fast) var(--ease-smooth);outline:none}.depth-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;background:var(--gold-500);width:24px;height:24px;box-shadow:0 0 0 4px var(--gold-glow-strong), var(--shadow-md);cursor:pointer;transition:all var(--duration-fast) var(--ease-smooth);border-radius:50%}.depth-slider::-webkit-slider-thumb:hover{box-shadow:0 0 0 6px var(--gold-glow-strong), var(--shadow-lg);transform:scale(1.15)}.depth-slider::-moz-range-thumb{background:var(--gold-500);width:24px;height:24px;box-shadow:0 0 0 4px var(--gold-glow-strong), var(--shadow-md);cursor:pointer;border:none;border-radius:50%}.depth-value-display{justify-content:center;align-items:center;gap:var(--space-2);margin-top:var(--space-3);display:flex}.depth-value-display .value{font-family:var(--font-mono);color:var(--gold-400);font-size:1.75rem;font-weight:700}.depth-value-display .unit{color:var(--text-muted);font-size:.875rem;font-weight:600}.depth-presets{gap:var(--space-2);margin-top:var(--space-3);flex-wrap:wrap;display:flex}.depth-preset{padding:var(--space-1) var(--space-3);font-size:.75rem;font-weight:600;font-family:var(--font-mono);color:var(--text-muted);background:var(--slate-800);border:1px solid var(--slate-700);border-radius:var(--radius-full);cursor:pointer;transition:all var(--duration-fast) var(--ease-smooth)}.depth-preset:hover{border-color:var(--gold-500);color:var(--gold-400)}.depth-preset.active{background:var(--gold-glow);border-color:var(--gold-500);color:var(--gold-400)}.waste-toggle{gap:var(--space-2);margin-bottom:var(--space-6);display:flex}.waste-chip{padding:var(--space-2) var(--space-4);color:var(--text-muted);background:var(--slate-800);border:1px solid var(--slate-700);border-radius:var(--radius-full);cursor:pointer;transition:all var(--duration-fast) var(--ease-smooth);font-size:.8rem;font-weight:600}.waste-chip:hover{border-color:var(--slate-500);color:var(--text-secondary)}.waste-chip.active{background:var(--surface-overlay);border-color:var(--gold-500);color:var(--gold-400)}.results-container{gap:var(--space-6);flex-direction:column;display:flex}.kpi-grid{gap:var(--space-4);grid-template-columns:repeat(2,1fr);display:grid}.kpi-card{background:var(--slate-850);border:1px solid var(--surface-glass-border);border-radius:var(--radius-lg);padding:var(--space-5);text-align:center;transition:all var(--duration-base) var(--ease-smooth);position:relative;overflow:hidden}.kpi-card:after{content:"";background:var(--gold-500);opacity:.4;height:3px;transition:opacity var(--duration-base) var(--ease-smooth);position:absolute;bottom:0;left:0;right:0}.kpi-card:hover:after{opacity:1}.kpi-card .kpi-icon{width:32px;height:32px;margin:0 auto var(--space-2);color:var(--gold-400)}.kpi-card .kpi-value{font-family:var(--font-mono);color:var(--text-primary);margin-bottom:var(--space-1);font-size:1.75rem;font-weight:700;line-height:1}.kpi-card .kpi-unit{color:var(--text-muted);font-size:.875rem}.kpi-card .kpi-label{text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-top:var(--space-2);font-size:.7rem;font-weight:600}.kpi-hero{background:linear-gradient(135deg, var(--slate-800), var(--slate-850));grid-column:1/-1}.kpi-hero .kpi-value{color:var(--gold-400);font-size:2.5rem}.breakdown-section{background:var(--slate-850);border:1px solid var(--surface-glass-border);border-radius:var(--radius-lg);overflow:hidden}.breakdown-header{align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--surface-glass-border);display:flex}.breakdown-header svg{width:20px;height:20px;color:var(--gold-400)}.breakdown-header h4{font-size:.875rem;font-weight:700}.breakdown-table{border-collapse:collapse;width:100%}.breakdown-table tr{transition:background var(--duration-fast) var(--ease-smooth);border-bottom:1px solid #6b7a8d14}.breakdown-table tr:hover{background:var(--slate-800)}.breakdown-table tr:last-child{border-bottom:none}.breakdown-table td{padding:var(--space-3) var(--space-5)}.breakdown-table td:first-child{color:var(--text-secondary);font-size:.825rem}.breakdown-table td:last-child{text-align:right;font-family:var(--font-mono);color:var(--text-primary);font-size:.9rem;font-weight:600}.purchase-grid{gap:var(--space-3);grid-template-columns:repeat(auto-fit,minmax(160px,1fr));display:grid}.purchase-card{background:var(--slate-800);border:1px solid var(--surface-glass-border);border-radius:var(--radius-md);padding:var(--space-4);text-align:center}.purchase-card svg{width:28px;height:28px;color:var(--granite-blue);margin:0 auto var(--space-2)}.purchase-card .purchase-value{font-family:var(--font-mono);color:var(--text-primary);font-size:1.25rem;font-weight:700}.purchase-card .purchase-label{color:var(--text-muted);margin-top:var(--space-1);font-size:.7rem}.results-title-bar{justify-content:space-between;align-items:center;width:100%;display:flex}.results-title-left{align-items:center;gap:var(--space-3);display:flex}.viz-live-badge{align-items:center;gap:var(--space-2);border-radius:var(--radius-full);color:#4ade80;transition:all var(--duration-fast) var(--ease-smooth);background:#4ade801f;border:1px solid #4ade8059;padding:4px 10px;font-size:.725rem;font-weight:700;text-decoration:none;display:inline-flex}.viz-live-badge:hover{background:#4ade8038;border-color:#4ade80;transform:translateY(-1px)}.live-dot{background:#4ade80;border-radius:50%;width:7px;height:7px;animation:2s ease-in-out infinite pulseLive;box-shadow:0 0 8px #4ade80}@keyframes pulseLive{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.85)}}.cost-fields-grid{gap:var(--space-3);padding:var(--space-4);background:var(--slate-850);border-bottom:1px solid var(--surface-glass-border);grid-template-columns:repeat(auto-fit,minmax(135px,1fr));display:grid}.cost-input-cell{gap:var(--space-1);flex-direction:column;display:flex}.cost-input-cell label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);font-size:.7rem;font-weight:600}.input-field.mini{padding:var(--space-1) var(--space-2);min-height:34px}.input-field.mini input{font-size:.875rem}.input-field .currency{color:var(--text-muted);font-size:.85rem;font-weight:700}.cost-summary-box{padding:var(--space-4) var(--space-5);gap:var(--space-2);background:var(--surface-overlay);flex-direction:column;display:flex}.cost-line-item{color:var(--text-secondary);justify-content:space-between;align-items:center;font-size:.825rem;display:flex}.cost-line-item .cost-val{font-family:var(--font-mono);color:var(--text-primary);font-weight:600}.cost-grand-total-row{margin-top:var(--space-2);padding-top:var(--space-3);border-top:1px solid var(--gold-500);justify-content:space-between;align-items:center;display:flex}.grand-label{color:var(--gold-400);font-size:.95rem;font-weight:700}.grand-val{font-family:var(--font-mono);color:var(--gold-400);font-size:1.4rem;font-weight:800}.saved-projects-panel{background:var(--surface-raised);border:1px solid var(--surface-glass-border);border-radius:var(--radius-xl);padding:var(--space-6);box-shadow:var(--shadow-md)}.saved-projects-header{margin-bottom:var(--space-5);justify-content:space-between;align-items:center;gap:var(--space-3);flex-wrap:wrap;display:flex}.saved-title-group{align-items:center;gap:var(--space-3);display:flex}.saved-title-group h3{font-size:1.15rem}.saved-title-group 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