:root{--bg-primary: #f6f9fc;--bg-surface: #ffffff;--bg-surface-glass: rgba(255, 255, 255, .92);--bg-subtle: #f0f6fa;--text-main: #0c2340;--text-body: #2c4260;--text-muted: #627d98;--text-light: #9fb3c8;--color-brand: #0284c7;--color-brand-hover: #0369a1;--color-brand-dark: #0f3460;--color-brand-light: #e0f2fe;--color-brand-border: #bae6fd;--color-brand-gradient: linear-gradient(135deg, #0284c7 0%, #0369a1 60%, #0f3460 100%);--color-emerald: #059669;--color-emerald-light: #ecfdf5;--color-cyan: #0891b2;--color-cyan-light: #ecfeff;--color-amber: #d97706;--color-amber-light: #fffbeb;--color-rose: #e11d48;--color-rose-light: #fff1f2;--border-light: #e2eaf2;--border-subtle: #edf2f7;--shadow-sm: 0 1px 3px rgba(12, 35, 64, .05), 0 1px 2px rgba(12, 35, 64, .03);--shadow-md: 0 4px 16px -2px rgba(12, 35, 64, .08), 0 2px 6px -2px rgba(12, 35, 64, .04);--shadow-lg: 0 14px 38px -4px rgba(12, 35, 64, .12), 0 4px 12px -2px rgba(12, 35, 64, .06);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-full: 9999px;--font-heading: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;--font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif}[data-theme=dark]{--bg-primary: #060e1a;--bg-surface: #0c182a;--bg-surface-glass: rgba(12, 24, 42, .92);--bg-subtle: #12233b;--text-main: #f0f7ff;--text-body: #cbd8e8;--text-muted: #7f9bb8;--text-light: #526c88;--color-brand: #38bdf8;--color-brand-hover: #7dd3fc;--color-brand-dark: #0284c7;--color-brand-light: rgba(56, 189, 248, .12);--color-brand-border: rgba(56, 189, 248, .35);--color-brand-gradient: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);--color-emerald-light: rgba(5, 150, 105, .18);--color-cyan-light: rgba(8, 145, 178, .18);--color-amber-light: rgba(217, 119, 6, .18);--color-rose-light: rgba(225, 29, 72, .18);--border-light: #182e4e;--border-subtle: #12233b;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);--shadow-md: 0 4px 16px rgba(0, 0, 0, .5);--shadow-lg: 0 12px 36px rgba(0, 0, 0, .65)}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;overflow-x:hidden}body{font-family:var(--font-body);background-color:var(--bg-primary);color:var(--text-body);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;min-height:100vh;min-height:100dvh;transition:background-color .25s ease,color .25s ease}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--text-main);line-height:1.25;font-weight:700;letter-spacing:-.015em}a{color:inherit;text-decoration:none;touch-action:manipulation}button,input,select,textarea{font-family:inherit;touch-action:manipulation}button{cursor:pointer;border:none;background:none}.container{max-width:1280px;margin:0 auto;padding:0 1.5rem;width:100%}@media (max-width: 640px){.container{padding:0 1rem}.calc-card{padding:1.25rem 1rem!important}}.table-responsive{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:thin}.glass-nav{background:var(--bg-surface-glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border-light);position:sticky;top:0;z-index:100;box-shadow:0 2px 14px #0c23400a}.nav-text-link{font-size:.875rem;font-weight:600;color:var(--text-muted);background:transparent;padding:.4rem .25rem;position:relative;transition:color .18s ease;cursor:pointer;border:none;white-space:nowrap}.nav-text-link:hover{color:var(--color-brand)}.nav-text-link.active{color:var(--color-brand);font-weight:700}.nav-text-link.active:after{content:"";position:absolute;bottom:-6px;left:0;right:0;height:2.5px;background:var(--color-brand);border-radius:9999px}.icon-btn-minimal{width:38px;height:38px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;background:var(--bg-subtle);border:1px solid var(--border-light);color:var(--text-body);transition:all .18s ease;cursor:pointer;padding:0;flex-shrink:0}.icon-btn-minimal:hover{background:var(--color-brand-light);border-color:var(--color-brand-border);color:var(--color-brand);transform:translateY(-1px)}.badge-count-dot{position:absolute;top:-3px;right:-3px;background:var(--color-brand);color:#fff;font-size:.65rem;font-weight:700;min-width:17px;height:17px;border-radius:9999px;display:flex;align-items:center;justify-content:center;border:2px solid var(--bg-surface)}.btn-ai-header{display:inline-flex;align-items:center;gap:.45rem;font-size:.84rem;font-weight:700;padding:.44rem .95rem;border-radius:var(--radius-full);background:var(--color-brand-gradient);color:#fff;border:1px solid rgba(255,255,255,.25);box-shadow:0 2px 10px #0284c740;transition:all .2s ease;cursor:pointer;white-space:nowrap}.btn-ai-header:hover{transform:translateY(-1px);box-shadow:0 4px 14px #0284c766}.mobile-menu-toggle{display:none}@media (max-width: 860px){.mobile-menu-toggle{display:flex}}.ai-hero-interactive-card{width:100%;max-width:680px;background:var(--bg-surface);border:1.5px solid var(--color-brand-border);border-radius:var(--radius-lg);padding:.9rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;box-shadow:0 4px 18px #0284c714;cursor:pointer;transition:all .22s ease;margin-top:.5rem}.ai-hero-interactive-card:hover{transform:translateY(-2px);border-color:var(--color-brand);box-shadow:0 8px 24px #0284c729}.ai-hero-icon-pulse{width:42px;height:42px;border-radius:50%;background:var(--color-brand-gradient);display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 2px 8px #0284c759}.ai-hero-cta-btn{display:inline-flex;align-items:center;gap:.4rem;font-size:.8rem;font-weight:700;color:var(--color-brand);background:var(--color-brand-light);padding:.45rem .85rem;border-radius:var(--radius-full);border:1px solid var(--color-brand-border);white-space:nowrap;flex-shrink:0;transition:all .18s ease}.ai-hero-interactive-card:hover .ai-hero-cta-btn{background:var(--color-brand);color:#fff}@media (max-width: 640px){.ai-hero-interactive-card{flex-direction:column;align-items:stretch;text-align:center;padding:1rem;gap:.75rem}.ai-hero-cta-btn{justify-content:center;width:100%}}.home-calc-card{display:flex;flex-direction:column;justify-content:space-between;gap:1.25rem;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;border:1px solid var(--border-light);cursor:pointer;background:var(--bg-surface);border-radius:var(--radius-lg);padding:1.5rem}.home-calc-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px #0c234017;border-color:var(--color-brand)}.home-calc-card:active{transform:scale(.98)}.step-badge{display:inline-flex;align-items:center;gap:.4rem;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--color-brand);background:var(--color-brand-light);padding:.2rem .6rem;border-radius:var(--radius-full)}.tooltip-container{position:relative;display:inline-flex;align-items:center;cursor:help}.tooltip-trigger{color:var(--text-muted);transition:color .15s ease;display:flex;align-items:center}.tooltip-trigger:hover{color:var(--color-brand)}.tooltip-content{visibility:hidden;opacity:0;position:absolute;bottom:125%;left:50%;transform:translate(-50%) translateY(4px);width:220px;background:var(--bg-surface);color:var(--text-main);border:1px solid var(--border-light);font-size:.75rem;font-weight:500;line-height:1.4;padding:.6rem .8rem;border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);z-index:50;transition:all .2s ease;pointer-events:none;text-align:center}.tooltip-container:hover .tooltip-content{visibility:visible;opacity:1;transform:translate(-50%) translateY(0)}.preset-chip-group{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.5rem}.preset-chip{font-size:.75rem;font-weight:600;padding:.25rem .6rem;border-radius:var(--radius-full);background:var(--bg-subtle);color:var(--text-main);border:1px solid var(--border-light);transition:all .15s ease}.preset-chip:hover{background:var(--color-brand-light);color:var(--color-brand);border-color:var(--color-brand-border);transform:translateY(-1px)}.breakdown-bar-container{width:100%;height:10px;background:var(--bg-subtle);border-radius:var(--radius-full);overflow:hidden;display:flex;margin:1rem 0}.breakdown-segment{height:100%;transition:width .3s ease}.badge{display:inline-flex;align-items:center;gap:.35rem;padding:.25rem .65rem;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em}.badge-brand{background:var(--color-brand-light);color:var(--color-brand);border:1px solid var(--color-brand-border)}.badge-emerald{background:var(--color-emerald-light);color:var(--color-emerald);border:1px solid rgba(5,150,105,.3)}.badge-amber{background:var(--color-amber-light);color:var(--color-amber);border:1px solid rgba(217,119,6,.3)}.badge-rose{background:var(--color-rose-light);color:var(--color-rose);border:1px solid rgba(225,29,72,.3)}.badge-cyan{background:var(--color-cyan-light);color:var(--color-cyan);border:1px solid rgba(8,145,178,.3)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1.25rem;border-radius:var(--radius-md);font-weight:600;font-size:.9rem;transition:all .2s ease}.btn-primary{background:var(--color-brand-gradient);color:#fff;box-shadow:0 4px 14px #0284c740}.btn-primary:hover{background:linear-gradient(135deg,#0369a1,#0c2340);transform:translateY(-1px);box-shadow:0 6px 20px #0284c759}.btn-secondary{background:var(--bg-surface);color:var(--text-main);border:1px solid var(--border-light);box-shadow:var(--shadow-sm)}.btn-secondary:hover{background:var(--bg-subtle);border-color:var(--color-brand);color:var(--color-brand)}.footer-link-btn{transition:all .18s ease}.footer-link-btn:hover{background:var(--bg-subtle)!important;transform:translate(4px)}.footer-link-btn:hover .footer-link-title{color:var(--color-brand)!important}.calc-card{background:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:1.75rem;transition:box-shadow .2s ease,border-color .2s ease,background-color .25s ease}.calc-card:hover{box-shadow:var(--shadow-lg);border-color:var(--color-brand-border)}.form-group{margin-bottom:1.25rem}.form-label{display:flex;justify-content:space-between;align-items:center;font-size:.875rem;font-weight:600;color:var(--text-main);margin-bottom:.5rem}.form-input-wrapper{position:relative;display:flex;align-items:center}.input-prefix,.input-suffix{position:absolute;font-weight:600;color:var(--text-muted);font-size:.9rem;pointer-events:none}.input-prefix{left:.85rem}.input-suffix{right:.85rem}.form-input{width:100%;padding:.75rem .85rem;font-size:1rem;font-weight:600;color:var(--text-main);background:var(--bg-surface);border:1.5px solid var(--border-light);border-radius:var(--radius-md);transition:all .2s ease}.form-input.has-prefix{padding-left:2.75rem}.form-input.has-suffix{padding-right:2.75rem}.form-input:focus{outline:none;border-color:var(--color-brand);background:var(--bg-surface);box-shadow:0 0 0 3.5px #0284c733}.form-select{width:100%;padding:.75rem .85rem;font-size:.95rem;font-weight:600;color:var(--text-main);background:var(--bg-surface);border:1.5px solid var(--border-light);border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease}.form-select:focus{outline:none;border-color:var(--color-brand);background:var(--bg-surface);box-shadow:0 0 0 3.5px #0284c733}.form-select option{background:var(--bg-surface);color:var(--text-main)}.form-range{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:4px;background:var(--bg-subtle);outline:none;margin-top:.6rem}.form-range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--color-brand);border:3px solid var(--bg-surface);box-shadow:0 2px 6px #0000004d;cursor:pointer;transition:transform .15s ease,background-color .15s ease}.form-range::-webkit-slider-thumb:hover{transform:scale(1.15);background:var(--color-brand-hover)}.results-box{background:var(--bg-surface);color:var(--text-main);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:1.75rem;box-shadow:var(--shadow-md);transition:background-color .25s ease,border-color .25s ease}.metric-hero-card{background:linear-gradient(145deg,var(--bg-subtle) 0%,var(--color-brand-light) 100%);border:1px solid var(--color-brand-border);border-radius:var(--radius-md);padding:1.25rem;margin-bottom:1.25rem;box-shadow:var(--shadow-sm)}.metric-value-primary{font-family:var(--font-heading);font-size:2rem;font-weight:800;color:var(--color-brand-dark);letter-spacing:-.02em}[data-theme=dark] .metric-value-primary{color:var(--color-brand)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}@media (max-width: 900px){.grid-2{grid-template-columns:1fr}}.modal-overlay{position:fixed;inset:0;background:#060e1abf;backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1.5rem;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}.skeleton{background:linear-gradient(90deg,var(--bg-subtle) 25%,var(--border-light) 50%,var(--bg-subtle) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-md)}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.calc-skeleton-container{display:flex;flex-direction:column;gap:1.5rem;padding:1.5rem 0}.calc-skeleton-header{height:110px;width:100%;border-radius:var(--radius-lg)}.calc-skeleton-body{height:480px;width:100%;border-radius:var(--radius-lg)}.desktop-nav-links{display:flex}.mobile-bottom-nav{display:none}@media (max-width: 860px){.desktop-nav-links,.hide-on-mobile{display:none!important}.form-input,select,textarea{font-size:16px!important}main.container{padding-bottom:5.5rem!important}.mobile-bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;height:64px;background:var(--bg-surface);border-top:1px solid var(--border-light);box-shadow:0 -4px 20px #00000014;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:2100;align-items:center;justify-content:space-around;padding:0 .5rem;padding-bottom:env(safe-area-inset-bottom,0)}.mobile-nav-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;background:transparent;border:none;color:var(--text-muted);font-size:.7rem;font-weight:600;cursor:pointer;flex:1;height:100%;transition:all .15s ease;-webkit-tap-highlight-color:transparent}.mobile-nav-btn:active{transform:scale(.92)}.mobile-nav-btn.active{color:var(--color-brand)}.mobile-nav-btn.active .mobile-nav-icon{transform:translateY(-2px);color:var(--color-brand)}.mobile-nav-label{font-size:.68rem;line-height:1;letter-spacing:-.01em}.mobile-nav-btn-center{display:flex;flex-direction:column;align-items:center;justify-content:center;background:transparent;border:none;cursor:pointer;flex:1;height:100%;margin-top:-16px;-webkit-tap-highlight-color:transparent}.mobile-nav-btn-center:active{transform:scale(.92)}.mobile-nav-center-bubble{width:46px;height:46px;border-radius:50%;background:var(--color-brand-gradient);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px #2563eb66;border:3px solid var(--bg-surface);margin-bottom:2px;animation:pulse 2.5s infinite}.mobile-sheet-handle-bar{display:flex;justify-content:center;padding:.5rem 0 .25rem;background:var(--bg-surface)}.mobile-sheet-pill{width:36px;height:4px;border-radius:2px;background:var(--border-light)}}.ai-chat-overlay{position:fixed;inset:0;background:#0006;backdrop-filter:blur(4px);z-index:2500;display:flex;align-items:flex-end;justify-content:flex-start;padding:24px;animation:fadeIn .2s ease}.ai-chat-window{width:100%;max-width:420px;height:580px;max-height:85vh;background:var(--bg-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);border:1px solid var(--border-light);display:flex;flex-direction:column;overflow:hidden;animation:slideUp .25s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideLeft{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}@media (max-width: 640px){.ai-chat-overlay{padding:0;align-items:flex-end}.ai-chat-window{max-width:100%;height:85vh;border-radius:24px 24px 0 0;border-bottom:none}}.calc-card,.btn,.preset-chip{-webkit-tap-highlight-color:transparent}.floating-back-to-top{position:fixed;bottom:24px;right:24px;width:44px;height:44px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);z-index:1500;padding:0}@media (max-width: 860px){.floating-back-to-top{bottom:76px;right:16px;width:40px;height:40px}}.ai-floating-fab-btn{position:fixed;bottom:24px;left:24px;background:var(--color-brand-gradient);color:#fff;padding:.75rem 1.25rem;border-radius:var(--radius-full);box-shadow:0 6px 20px #2563eb66;z-index:1800;display:flex;align-items:center;gap:.6rem;font-weight:700;font-size:.9rem;border:2px solid rgba(255,255,255,.25);cursor:pointer;animation:pulse 3s infinite;transition:all .2s ease;-webkit-tap-highlight-color:transparent}.ai-floating-fab-btn:hover{transform:translateY(-2px) scale(1.03);box-shadow:0 8px 25px #2563eb8c}.ai-floating-fab-btn:active{transform:scale(.95)}@media (max-width: 860px){.ai-floating-fab-btn{bottom:76px;left:16px;padding:.55rem .95rem;font-size:.78rem;box-shadow:0 4px 14px #2563eb66}}