:root{--brand-primary:#14b8a6;--brand-primary-dark:#0d9488;--brand-primary-light:#2dd4bf;--brand-primary-glow:rgba(20,184,166,0.18);--brand-primary-soft:rgba(20,184,166,0.08);--brand-primary-border:rgba(20,184,166,0.25);--brand-accent:#f59e0b;--brand-accent-soft:rgba(245,158,11,0.12);--brand-danger:#ef4444;--brand-success:#22c55e;--brand-info:#3b82f6;--bg-0:#09090b;--bg-1:#0d0f12;--bg-2:#111318;--bg-3:#161a22;--bg-4:#1c2130;--surface-1:#1a1f2e;--surface-2:#202635;--surface-3:#262d3f;--border-1:rgba(255,255,255,0.08);--border-2:rgba(255,255,255,0.14);--border-3:rgba(255,255,255,0.22);--text-1:#f8fafc;--text-2:#e2e8f0;--text-3:#cbd5e1;--text-4:#94a3b8;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--r-2:8px;--r-3:12px;--r-4:16px;--r-5:20px;--r-full:9999px;--shadow-sm:0 2px 8px rgba(0,0,0,0.4);--shadow-md:0 4px 20px rgba(0,0,0,0.5);--shadow-lg:0 8px 40px rgba(0,0,0,0.6);--shadow-glow:0 0 35px rgba(20,184,166,0.15)}[data-theme=light]{--brand-primary:#0f766e;--brand-primary-dark:#115e59;--brand-primary-light:#0d9488;--brand-primary-glow:rgba(15,118,110,0.15);--brand-primary-soft:rgba(15,118,110,0.08);--brand-primary-border:rgba(15,118,110,0.3);--brand-accent:#b45309;--brand-accent-soft:rgba(180,83,9,0.1);--bg-0:#ffffff;--bg-1:#f8fafc;--bg-2:#f1f5f9;--bg-3:#e2e8f0;--bg-4:#cbd5e1;--surface-1:#ffffff;--surface-2:#f8fafc;--surface-3:#f1f5f9;--border-1:rgba(0,0,0,0.08);--border-2:rgba(0,0,0,0.14);--border-3:rgba(0,0,0,0.22);--text-1:#0f172a;--text-2:#1e293b;--text-3:#334155;--text-4:#475569;--shadow-sm:0 2px 8px rgba(0,0,0,0.08);--shadow-md:0 4px 20px rgba(0,0,0,0.1);--shadow-lg:0 8px 40px rgba(0,0,0,0.12);--shadow-glow:0 0 35px rgba(15,118,110,0.1)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);background:var(--bg-1);color:var(--text-1);line-height:1.6;min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}.skip-link{position:absolute;top:-120px;left:1rem;background:var(--brand-primary);color:#ffffff;padding:.75rem 1.25rem;border-radius:var(--r-2);font-weight:700;font-size:1rem;z-index:9999;text-decoration:none;transition:top .2s ease-in-out;box-shadow:var(--shadow-lg)}.skip-link:focus{top:1rem;outline:3px solid #ffffff;outline-offset:3px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}:focus-visible{outline:2px solid var(--brand-primary);outline-offset:2px}[tabindex="0"]:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--brand-primary);outline-offset:2px}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit;border:none;background:transparent;min-height:44px}input,select,textarea{font-family:inherit;font-size:1rem}.container{width:100%;max-width:1200px;margin:0 auto;padding-left:max(1.25rem,env(safe-area-inset-left));padding-right:max(1.25rem,env(safe-area-inset-right))}.badge-uvp{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;font-weight:600;padding:4px 10px;border-radius:var(--r-full);background:var(--brand-primary-soft);color:var(--brand-primary-light);border:1px solid var(--brand-primary-border)}.calc-box-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:2rem;gap:2rem;background:var(--surface-1);border:1px solid var(--border-2);border-radius:var(--r-5);padding:2rem;box-shadow:var(--shadow-md),var(--shadow-glow);margin-bottom:2.5rem}@media (max-width:860px){.calc-box-grid{grid-template-columns:1fr;padding:1.25rem;gap:1.5rem;margin-bottom:2rem}}.form-group{margin-bottom:1.25rem}.form-label{display:block;font-size:.9rem;font-weight:600;color:var(--text-2);margin-bottom:.5rem}.form-input,.form-select{width:100%;min-height:48px;padding:.75rem 1rem;background:var(--bg-2);color:var(--text-1);border:1px solid var(--border-2);border-radius:var(--r-2);font-size:1rem;line-height:1.5;transition:border-color .2s,box-shadow .2s}.form-input:focus,.form-select:focus{outline:none;border-color:var(--brand-primary);box-shadow:0 0 0 3px var(--brand-primary-soft)}.results-card{background:var(--bg-2);border:1px solid var(--border-2);border-radius:var(--r-4);padding:1.75rem;display:flex;flex-direction:column;justify-content:space-between}.result-hero{margin-bottom:1.5rem}.result-hero-label{font-size:.875rem;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.25rem}.result-hero-value{font-size:2.5rem;font-weight:800;color:var(--brand-primary);line-height:1.15;word-break:break-word}@media (max-width:640px){.result-hero-value{font-size:2rem}}.metric-row{display:flex;justify-content:space-between;align-items:center;padding:.75rem 0;border-bottom:1px solid var(--border-1);font-size:.95rem}.metric-row:last-child{border-bottom:none}.metric-label{color:var(--text-3)}.metric-value{font-weight:600;color:var(--text-1)}.site-header{min-height:64px;border-bottom:1px solid var(--border-1);background:var(--surface-1);position:-webkit-sticky;position:sticky;top:0;z-index:50;contain:layout style}@supports ((-webkit-backdrop-filter:blur(12px)) or (backdrop-filter:blur(12px))) or (-webkit-backdrop-filter:blur(12px)){.site-header{background:rgba(26,31,46,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}}@media (prefers-reduced-transparency:reduce){.site-header{background:var(--surface-1)!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}}.content-box{background:var(--surface-1);border:1px solid var(--border-1);border-radius:var(--r-4);padding:1.75rem;margin-bottom:2rem;content-visibility:auto;contain-intrinsic-size:auto 300px}@media (max-width:640px){.content-box{padding:1.25rem}}.content-box h2,.content-box h3{color:var(--text-1);margin-bottom:1rem}.formula-display{background:var(--bg-2);padding:1rem 1.25rem;border-radius:var(--r-2);font-family:var(--font-mono);font-size:.95rem;color:var(--brand-accent);border-left:3px solid var(--brand-accent);margin:1rem 0}.formula-display,.table-scroll-container{overflow-x:auto;-webkit-overflow-scrolling:touch}.table-scroll-container{border:1px solid var(--border-2);border-radius:var(--r-2)}.table-scroll-container:focus-visible{outline:2px solid var(--brand-primary);outline-offset:2px}.mobile-sticky-bar{display:none}@media (max-width:860px){.mobile-sticky-bar{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--surface-1);border-top:2px solid var(--brand-primary);padding:.75rem 1.25rem max(.75rem,env(safe-area-inset-bottom));align-items:center;justify-content:space-between;z-index:40;box-shadow:0 -4px 20px rgba(0,0,0,.5);contain:layout paint}@supports ((-webkit-backdrop-filter:blur(8px)) or (backdrop-filter:blur(8px))) or (-webkit-backdrop-filter:blur(8px)){.mobile-sticky-bar{background:rgba(26,31,46,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}}@media (prefers-reduced-transparency:reduce){.mobile-sticky-bar{background:var(--surface-1)!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}}body.has-sticky-bar{padding-bottom:80px}}.touch-target-btn{min-height:44px;min-width:44px;display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;font-size:.9rem;font-weight:600;border-radius:var(--r-2);cursor:pointer;transition:all .2s ease}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}