:root{--green:#16b94e;--green-dark:#087d32;--charcoal:#3f4a4d;--ink:#172024;--paper:#f3f5f3;--line:#d9dedb;--muted:#64706c}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}.topbar{min-height:108px;padding:12px clamp(22px,7vw,110px);display:flex;align-items:center;gap:45px;border-bottom:1px solid var(--line);background:#fff}.brand{margin-right:auto}.brand img{display:block;width:275px;height:auto}.topbar nav{display:flex;align-items:center;gap:27px;font-size:13px;font-weight:800}.topbar nav>a:hover{color:var(--green-dark)}.nav-calculator{padding:14px 18px;background:var(--green);color:#fff!important}.hero{min-height:630px;padding:clamp(70px,8vw,120px) clamp(22px,9vw,140px);display:grid;grid-template-columns:minmax(0,1.25fr) minmax(310px,.75fr);gap:clamp(45px,8vw,120px);align-items:center;background:linear-gradient(105deg,#fff 0 72%,#eef1ee 72%)}.eyebrow{display:block;color:var(--green-dark);font-size:11px;font-weight:900;letter-spacing:.18em;text-transform:uppercase}.hero h1{max-width:850px;margin:25px 0 28px;color:var(--charcoal);font-size:clamp(55px,7vw,98px);line-height:.93;letter-spacing:-.055em}.hero-copy>p{max-width:720px;color:var(--muted);font-size:20px;line-height:1.65}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:38px}.button{min-height:56px;padding:0 24px;display:inline-flex;align-items:center;justify-content:center;gap:25px;font-size:14px;font-weight:900}.button.primary{background:var(--green);color:#fff}.button.primary:hover{background:var(--green-dark)}.button.secondary{border:1px solid #aab4af;background:#fff}.hero-panel{padding:34px;background:var(--charcoal);color:#fff;border-top:7px solid var(--green);box-shadow:0 20px 60px rgba(30,45,38,.14)}.hero-panel small{color:#8ae9a8;font-weight:900;letter-spacing:.15em;text-transform:uppercase}.hero-panel strong{display:block;margin:26px 0 15px;font-size:29px;line-height:1.15}.hero-panel p{color:#d4dad7;line-height:1.6;font-size:14px}.hero-panel a{display:flex;justify-content:space-between;border-top:1px solid #687477;margin-top:28px;padding-top:20px;color:#8ae9a8;font-size:13px;font-weight:900}.credentials{padding:24px clamp(22px,9vw,140px);display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}.credentials span{padding:18px;background:#fff;color:var(--charcoal);font-size:13px;font-weight:800;text-align:center}.areas{padding:110px clamp(22px,9vw,140px);background:var(--paper)}.section-intro{display:flex;justify-content:space-between;align-items:end;gap:50px;margin-bottom:50px}.section-intro h2{max-width:750px;margin:18px 0 0;color:var(--charcoal);font-size:clamp(42px,5vw,68px);line-height:1;letter-spacing:-.045em}.section-intro>p{max-width:460px;color:var(--muted);line-height:1.65}.area-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.area-card{min-height:570px;padding:34px;background:#fff;border-top:6px solid var(--charcoal);display:flex;flex-direction:column}.area-card.energy{border-color:var(--green)}.area-card.planning{border-color:#889492}.number{color:var(--green-dark);font-size:11px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.area-card h3{margin:28px 0 20px;color:var(--charcoal);font-size:clamp(30px,3vw,43px);line-height:1;letter-spacing:-.04em}.area-card p{color:var(--muted);line-height:1.65}.area-card ul{padding:0;margin:24px 0 34px;list-style:none}.area-card li{padding:12px 0;border-bottom:1px solid var(--line);color:#44504c;font-size:14px;line-height:1.4}.area-card li:before{content:"✓";color:var(--green);font-weight:900;margin-right:10px}.area-card>a{display:flex;justify-content:space-between;gap:15px;margin-top:auto;padding-top:18px;border-top:2px solid var(--charcoal);font-size:13px;font-weight:900}.area-card>a:hover{color:var(--green-dark)}.about{padding:110px clamp(22px,9vw,140px);display:grid;grid-template-columns:minmax(280px,.72fr) 1.28fr;gap:clamp(55px,8vw,120px);align-items:center}.expert-card{padding:38px;border-top:6px solid var(--green);background:var(--paper)}.expert-card img{display:block;width:100%;height:auto;margin:34px 0 24px}.expert-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}.about h2{margin:18px 0 16px;color:var(--charcoal);font-size:clamp(44px,5vw,72px);line-height:1;letter-spacing:-.05em}.about .titles{font-weight:800;color:var(--charcoal);line-height:1.65}.about-copy>p:not(.titles){color:var(--muted);line-height:1.75}.about-note{margin-top:28px;padding:20px 22px;border-left:5px solid var(--green);background:var(--paper);color:var(--charcoal);font-weight:800;line-height:1.55}.calculator-band{padding:85px clamp(22px,9vw,140px);display:grid;grid-template-columns:1fr .85fr auto;align-items:end;gap:55px;background:var(--charcoal);color:#fff}.eyebrow.light{color:#88e8a6}.calculator-band h2{margin:18px 0 0;font-size:clamp(38px,4.8vw,66px);line-height:1;letter-spacing:-.045em}.calculator-band p{margin:0;color:#d0d7d4;line-height:1.7}.contact{padding:105px clamp(22px,9vw,140px);display:grid;grid-template-columns:1fr 1fr;gap:80px}.contact h2{max-width:650px;margin:18px 0 0;color:var(--charcoal);font-size:clamp(42px,5vw,70px);line-height:1;letter-spacing:-.05em}.contact-links{border-top:1px solid var(--line)}.contact-links a{min-height:84px;display:grid;grid-template-columns:90px 1fr auto;align-items:center;gap:20px;border-bottom:1px solid var(--line)}.contact-links small{color:var(--muted);text-transform:uppercase;letter-spacing:.14em}.contact-links strong{font-size:16px}.contact-links a>span{color:var(--green);font-size:22px}.site-footer{padding:58px clamp(22px,9vw,140px) 28px;display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:45px;background:#e9ecea;color:#5c6763;font-size:13px;line-height:1.65}.site-footer div{display:flex;flex-direction:column}.site-footer strong{color:var(--charcoal);margin-bottom:9px}.site-footer a:hover{color:var(--green-dark)}.site-footer p{grid-column:1/-1;margin:5px 0 0;padding-top:22px;border-top:1px solid #cfd5d1;font-size:11px}@media(max-width:1050px){.area-grid{grid-template-columns:1fr 1fr}.area-card:last-child{grid-column:1/-1;min-height:auto}.topbar nav>a:not(.nav-calculator){display:none}}@media(max-width:900px){.hero{grid-template-columns:1fr;min-height:auto}.hero-panel{max-width:620px}.credentials{grid-template-columns:1fr 1fr}.calculator-band{grid-template-columns:1fr}.contact,.about{grid-template-columns:1fr}.expert-card{max-width:550px}.site-footer{grid-template-columns:1fr 1fr}}@media(max-width:650px){.topbar{min-height:86px;padding:10px 18px}.brand img{width:195px}.nav-calculator{padding:12px;font-size:0}.nav-calculator:after{content:"KfW-Rechner";font-size:12px}.hero{padding:58px 20px}.hero h1{font-size:51px}.hero-copy>p{font-size:17px}.hero-actions{display:grid}.credentials,.area-grid{grid-template-columns:1fr}.area-card:last-child{grid-column:auto}.areas,.about{padding:75px 20px}.section-intro{display:block}.section-intro>p{margin-top:22px}.area-card{min-height:auto;padding:28px}.calculator-band{padding:70px 20px;gap:28px}.contact{padding:75px 20px;gap:40px}.contact-links a{grid-template-columns:70px 1fr auto}.contact-links strong{font-size:13px}.site-footer{grid-template-columns:1fr;padding:45px 20px 25px}.site-footer p{grid-column:1}}