:root{--ink:#17201b;--muted:#5d6962;--line:#dbe4dc;--paper:#f7f8f3;--white:#fff;--green:#2f7d58;--green-dark:#15563b;--amber:#d48a2e;--blue:#244c73;--plum:#68465f;--shadow:0 24px 70px #17201b29}*{box-sizing:border-box}html{background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}main{min-height:100vh}.hero{background:linear-gradient(90deg,#0a1912db,#0a191280 48%,#0a191224),url(/vae-charge.webp) 50%/cover no-repeat;min-height:720px;position:relative;overflow:hidden}.heroShade{background:linear-gradient(180deg, #f7f8f300, var(--paper));height:160px;position:absolute;inset:auto 0 0}.homeNav,.navBar{z-index:2;width:min(1180px,100% - 40px);color:var(--white);justify-content:space-between;align-items:center;margin:0 auto;padding:24px 0;display:flex;position:relative}.brand{letter-spacing:0;font-weight:850}.navLink{color:#ffffffe6;border:1px solid #ffffff75;border-radius:8px;padding:10px 14px;font-size:.92rem;font-weight:760}.heroInner{z-index:1;grid-template-columns:minmax(280px,.9fr) minmax(320px,430px);align-items:center;gap:42px;width:min(1180px,100% - 40px);margin:0 auto;padding:88px 0 150px;display:grid;position:relative}.copy{color:var(--white);max-width:680px}.eyebrow{margin:0 0 18px;font-size:.94rem;font-weight:850}.eyebrow.dark{color:var(--green-dark)}h1,h2,h3,p{margin-top:0}h1{letter-spacing:0;max-width:720px;margin-bottom:22px;font-size:6.2rem;line-height:.94}h2{letter-spacing:0;margin-bottom:0;font-size:3rem;line-height:1}h3{color:var(--blue);margin-bottom:16px;font-size:1rem}.copy p:last-of-type{color:#ffffffe0;max-width:560px;margin-bottom:0;font-size:1.14rem;line-height:1.62}.heroActions{flex-wrap:wrap;gap:10px;margin-top:32px;display:flex}.heroActions a{border-radius:8px;align-items:center;min-height:46px;padding:0 16px;font-weight:850;display:inline-flex}.heroActions a:first-child{background:var(--white);color:var(--green-dark)}.heroActions a:last-child{color:var(--white);border:1px solid #ffffff85}.heroMetric{box-shadow:var(--shadow);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffffff0;border:1px solid #ffffff94;border-radius:8px;padding:30px}.heroMetric span{color:var(--muted);margin-bottom:18px;font-weight:800;display:block}.heroMetric strong{color:var(--green-dark);margin-bottom:18px;font-size:4rem;line-height:1;display:block}.heroMetric p{color:var(--muted);margin-bottom:0;line-height:1.65}.homeIntro{z-index:2;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;width:min(1180px,100% - 40px);margin:-78px auto 54px;display:grid;position:relative}.homeIntro article{border:1px solid var(--line);background:var(--white);border-radius:8px;min-height:138px;padding:22px;box-shadow:0 15px 40px #17201b17}.homeIntro span{color:var(--amber);margin-bottom:16px;font-size:2.6rem;font-weight:900;line-height:1;display:block}.homeIntro p{color:var(--muted);margin-bottom:0;line-height:1.45}.featuredBand,.toolsBand,.relatedBand,.useCasesBand,.toolContextBand,.calculationBand,.closingBand{width:min(1180px,100% - 40px);margin:0 auto}.featuredBand{padding:18px 0 42px}.useCasesBand{padding:18px 0 34px}.toolsBand{padding:28px 0 56px}.relatedBand{padding:10px 0 54px}.calculationBand{padding:4px 0 46px}.sectionHead{gap:10px;margin-bottom:24px;display:grid}.sectionHead.split{grid-template-columns:minmax(260px,.8fr) minmax(260px,.55fr);align-items:end;gap:30px}.sectionHead.split>p{color:var(--muted);margin-bottom:4px;line-height:1.6}.featuredGrid,.cardGrid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;display:grid}.cardGrid.compact{grid-template-columns:repeat(3,minmax(0,1fr))}.featureCard,.toolCard{border:1px solid var(--line);background:var(--white);border-radius:8px;align-content:start;min-height:196px;padding:20px;transition:transform .16s,box-shadow .16s,border-color .16s;display:grid}.featureCard{background:linear-gradient(180deg, var(--white), #f1f5ef);min-height:230px}.featureCard:hover,.toolCard:hover{border-color:#2f7d586b;transform:translateY(-2px);box-shadow:0 18px 46px #17201b1a}.featureCard span,.toolCard span{color:var(--plum);margin-bottom:16px;font-size:.82rem;font-weight:850}.featureCard strong,.toolCard strong{color:var(--ink);margin-bottom:12px;font-size:1.22rem;line-height:1.18}.featureCard p,.toolCard p{color:var(--muted);margin-bottom:0;font-size:.95rem;line-height:1.55}.categoryBlock{margin-top:34px}.useCaseGrid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.useCaseGrid article{border:1px solid var(--line);background:#eef3ed;border-radius:8px;min-height:210px;padding:22px}.useCaseGrid span,.toolContextBand span{color:var(--green-dark);margin-bottom:18px;font-size:.86rem;font-weight:850;display:block}.useCaseGrid strong{color:var(--ink);margin-bottom:12px;font-size:1.45rem;line-height:1.15;display:block}.useCaseGrid p{color:var(--muted);margin-bottom:0;line-height:1.55}.closingBand{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:minmax(280px,1fr) auto;align-items:center;gap:24px;margin-bottom:64px;padding:34px 0;display:grid}.closingBand h2{max-width:760px}.closingBand a{background:var(--green-dark);min-height:48px;color:var(--white);white-space:nowrap;border-radius:8px;justify-content:center;align-items:center;padding:0 18px;font-weight:850;display:inline-flex}.toolHero{color:var(--white);background:linear-gradient(135deg,#15563bf5,#244c73e6),url(/vae-charge.webp) 50%/cover no-repeat}.toolHeroInner{width:min(980px,100% - 40px);margin:0 auto;padding:76px 0 104px}.toolHero h1{max-width:860px;font-size:5rem}.toolHero p:last-child{color:#ffffffe0;max-width:650px;margin-bottom:0;font-size:1.12rem;line-height:1.6}.toolShell{width:min(1180px,100% - 40px);margin:-56px auto 48px}.toolPanel{box-shadow:var(--shadow);background:#fffffff5;border:1px solid #ffffffbd;border-radius:8px;padding:24px}.toolFields{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.field{color:var(--muted);gap:8px;font-size:.9rem;font-weight:760;display:grid}.inputLine{border:1px solid var(--line);background:var(--white);border-radius:8px;grid-template-columns:minmax(0,1fr) minmax(42px,auto);align-items:center;min-height:52px;display:grid;overflow:hidden}input[type=number]{width:100%;min-width:0;color:var(--ink);background:0 0;border:0;outline:0;padding:13px 14px;font-weight:800}.inputLine b{border-left:1px solid var(--line);min-width:42px;min-height:52px;color:var(--blue);white-space:nowrap;place-items:center;padding:0 10px;display:grid}.resultGrid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:14px;display:grid}.resultGrid article{border:1px solid var(--line);background:var(--white);border-radius:8px;min-height:136px;padding:22px;box-shadow:0 15px 40px #17201b14}.resultGrid span{color:var(--muted);margin-bottom:20px;font-size:.9rem;font-weight:800;display:block}.resultGrid strong{color:var(--green-dark);font-size:1.85rem;line-height:1.08;display:block}.resultGrid article:nth-child(2) strong{color:var(--blue)}.resultGrid article:nth-child(4) strong{color:var(--amber)}.noteLine{border-left:4px solid var(--green);background:#eef3ed;grid-template-columns:160px 1fr;gap:20px;margin-top:18px;padding:18px 20px;display:grid}.noteLine strong{color:var(--green-dark)}.noteLine p{color:var(--muted);margin-bottom:0;line-height:1.55}.calculationGrid{grid-template-columns:minmax(280px,1.2fr) repeat(2,minmax(220px,.9fr));gap:14px;display:grid}.calculationGrid article,.fieldGuide{border:1px solid var(--line);background:var(--white);border-radius:8px;padding:22px}.calculationGrid span{color:var(--plum);margin-bottom:14px;font-size:.84rem;font-weight:850;display:block}.calculationGrid p{color:var(--muted);margin-bottom:0;line-height:1.62}.formulaCard{background:#eef3ed}.formulaCard code{color:var(--ink);white-space:normal;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.96rem;line-height:1.65;display:block}.fieldGuide{margin-top:14px}.fieldGuide h3{margin-bottom:16px}.fieldGuide>div{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.fieldGuide p{background:#f7f8f3;border-radius:8px;min-height:74px;margin-bottom:0;padding:13px 14px}.fieldGuide strong,.fieldGuide span{display:block}.fieldGuide strong{color:var(--ink);margin-bottom:5px}.fieldGuide span{color:var(--muted);font-size:.9rem;line-height:1.4}.toolContextBand{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;padding:8px 0 48px;display:grid}.toolContextBand article{border:1px solid var(--line);background:#eef3ed;border-radius:8px;padding:24px}.toolContextBand h2{margin-bottom:14px;font-size:1.7rem}.toolContextBand p{color:var(--muted);margin-bottom:0;line-height:1.6}.siteFooter{color:var(--white);background:#17201b;padding:42px 0 26px}.footerInner,.footerBottom{width:min(1180px,100% - 40px);margin:0 auto}.footerInner{grid-template-columns:minmax(280px,.9fr) minmax(260px,auto);align-items:start;gap:36px;display:grid}.footerBrand{margin-bottom:12px;font-size:1.2rem;font-weight:900;display:inline-block}.footerInner p{color:#ffffffb8;max-width:460px;margin-bottom:0;line-height:1.6}.footerInner nav{grid-template-columns:repeat(2,minmax(120px,1fr));gap:10px;display:grid}.footerInner nav a{color:#ffffffd6;border:1px solid #ffffff29;border-radius:8px;padding:11px 12px;font-size:.92rem;font-weight:760}.footerBottom{color:#ffffff9e;border-top:1px solid #ffffff24;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:34px;padding-top:18px;font-size:.88rem;display:flex}@media (max-width:980px){.heroInner,.homeIntro,.featuredGrid,.cardGrid,.cardGrid.compact,.toolFields,.resultGrid,.useCaseGrid,.calculationGrid,.fieldGuide>div{grid-template-columns:repeat(2,minmax(0,1fr))}.sectionHead.split,.closingBand{grid-template-columns:1fr}h1{font-size:4.5rem}}@media (max-width:680px){.homeNav,.navBar,.heroInner,.homeIntro,.featuredBand,.toolsBand,.relatedBand,.useCasesBand,.toolContextBand,.calculationBand,.closingBand,.footerInner,.footerBottom,.toolHeroInner,.toolShell{width:min(100% - 24px,540px)}.homeNav,.navBar{padding-top:18px}.hero{min-height:auto}.heroInner{grid-template-columns:1fr;gap:28px;padding:56px 0 126px}h1,.toolHero h1{font-size:2.65rem}h2{font-size:2rem}.copy p:last-of-type,.toolHero p:last-child{font-size:1rem}.heroMetric strong{font-size:3.2rem}.homeIntro,.featuredGrid,.cardGrid,.cardGrid.compact,.toolFields,.resultGrid,.useCaseGrid,.calculationGrid,.fieldGuide>div,.toolContextBand,.footerInner{grid-template-columns:1fr}.toolHeroInner{padding:52px 0 92px}.toolShell{margin-top:-44px}.toolPanel{padding:16px}.noteLine{grid-template-columns:1fr;gap:8px}.closingBand{align-items:start;margin-bottom:48px}.closingBand a{width:100%}.footerInner nav{grid-template-columns:1fr}.footerBottom{display:grid}}