:root{
  --green:#009640;
  --green-dark:#007d36;
  --dark:#2f2f2d;
  --text:#514642;
  --soft:#f6f6f4;
  --sand:#e9e6e2;
  --line:#d8d5d1;
  --white:#fff;
}

*{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  background:var(--soft);
  color:var(--dark);
  font-family:Inter,Arial,sans-serif;
}

a{color:inherit;text-decoration:none}

img{
  max-width:100%;
  display:block;
}

.container{
  width:min(1180px,calc(100% - 48px));
  margin:0 auto;
}

/* HEADER */
.header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(246,246,244,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
}

.header-inner{
  min-height:94px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}

.logo img{
  width:275px;
  height:auto;
}

.nav{
  display:flex;
  gap:42px;
  font-size:13px;
  font-weight:900;
  text-transform:uppercase;
  letter-spacing:.08em;
}

.nav a{
  position:relative;
  padding:8px 0;
}

.nav a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-8px;
  height:3px;
  background:var(--green);
  transform:scaleX(0);
  transform-origin:left;
  transition:.2s;
}

.nav a:hover{
  color:var(--green);
}

.nav a:hover::after{
  transform:scaleX(1);
}

/* HERO */
.hero{
  display:grid;
  grid-template-columns:.62fr 1fr;
  min-height:720px;
  background:var(--dark);
}

.hero-copy{
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:72px 56px 72px max(56px,calc((100vw - 1180px)/2));
  color:var(--white);
}

.hero-image{
  min-height:720px;
  background-image:url("assets/hero-rohbau.png");
  background-size:cover;
  background-position:center;
}

.kicker{
  margin:0 0 22px;
  color:var(--green);
  font-size:13px;
  font-weight:900;
  text-transform:uppercase;
  letter-spacing:.25em;
}

.hero h1,
h2{
  margin:0;
  font-weight:900;
  letter-spacing:-.06em;
}

.hero h1{
  font-size:clamp(56px,6.2vw,94px);
  line-height:.94;
}

.hero h1 span{
  color:var(--green);
}

.subline{
  margin:34px 0 0;
  max-width:520px;
  color:#f3f0ec;
  font-size:23px;
  line-height:1.35;
  font-weight:650;
}

.hero-text{
  margin:22px 0 0;
  max-width:540px;
  color:#d8d5d1;
  font-size:17px;
  line-height:1.75;
}

/* BUTTONS */
.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:18px;
  min-height:52px;
  width:fit-content;
  margin-top:34px;
  padding:0 26px;
  border:2px solid var(--green);
  font-size:13px;
  font-weight:900;
  text-transform:uppercase;
  letter-spacing:.07em;
  transition:.2s;
}

.primary{
  background:var(--green);
  color:var(--white);
}

.primary:hover{
  background:var(--green-dark);
  border-color:var(--green-dark);
  transform:translateY(-1px);
}

.secondary{
  color:var(--dark);
  background:transparent;
}

.secondary:hover{
  color:var(--white);
  background:var(--green);
}

/* PROOF */
.proof{
  background:var(--white);
  border-bottom:1px solid var(--line);
}

.proof-grid{
  display:grid;
  grid-template-columns:1.15fr 1fr 1fr 1fr;
}

.proof-grid>*{
  margin:0;
  padding:30px 26px;
  border-left:1px solid var(--line);
}

.proof-grid>*:first-child{
  border-left:0;
}

.proof-main strong{
  display:block;
  font-size:52px;
  line-height:1;
  font-weight:900;
}

.proof-main span,
.proof p{
  color:var(--text);
  font-size:15px;
  line-height:1.55;
  font-weight:750;
}

.proof p::before{
  content:"";
  display:block;
  width:34px;
  height:4px;
  margin-bottom:14px;
  background:var(--green);
}

/* ABOUT */
.about{
  padding:130px 0;
  background:var(--soft);
}

.about-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:86px;
}

h2{
  font-size:clamp(42px,4.6vw,64px);
  line-height:1.02;
}

.about-text{
  color:var(--text);
  font-size:20px;
  line-height:1.75;
}

.about-text p{
  margin:0 0 24px;
}

.about-text .lead{
  color:var(--dark);
  font-size:30px;
  line-height:1.25;
  font-weight:900;
  letter-spacing:-.035em;
}

.emphasis{
  padding-top:26px;
  border-top:1px solid var(--line);
  color:var(--dark)!important;
  font-weight:900;
}

/* APPROACH */
.approach{
  padding:130px 0;
  background:var(--white);
}

.section-head{
  max-width:790px;
  margin-bottom:60px;
}

.section-head>p:last-child{
  margin:24px 0 0;
  color:var(--text);
  font-size:20px;
  line-height:1.6;
}

.cards{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}

.cards article{
  min-height:275px;
  padding:34px 28px;
  background:var(--soft);
  border:1px solid transparent;
  transition:.22s;
}

.cards article:hover{
  border-color:var(--green);
  transform:translateY(-4px);
}

.icon{
  width:64px;
  height:64px;
  margin-bottom:26px;
  display:flex;
  align-items:center;
  justify-content:flex-start;
}

.icon img{
  width:100%;
  height:100%;
  object-fit:contain;
  transition:.22s;
}

.cards article:hover .icon svg{
  transform:scale(1.06);
}

.cards h3{
  margin:26px 0 16px;
  font-size:22px;
  line-height:1.15;
  letter-spacing:-.03em;
}

.cards p{
  margin:0;
  color:var(--text);
  line-height:1.65;
}

.closing{
  margin:64px 0 0;
  padding-left:24px;
  border-left:4px solid var(--green);
  font-size:30px;
  font-weight:900;
  letter-spacing:-.04em;
}

.project{
  display:grid;
  grid-template-columns:0.9fr 1.1fr 0.7fr;
  background:var(--sand);
}

.project-info{
  padding:60px 40px;
}

.project-image{
  background:#e9e6e2;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:20px;
}

.project-image img{
  width:100%;
  max-width:520px;
  height:auto;
  display:block;
}

.project-facts{
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:40px 36px;
  background:#f1eee9;
}

.project-facts > div{
  display:flex;
  align-items:center;
  gap:18px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  transition:transform .25s ease, background .25s ease;
  cursor:pointer;
}

.project-facts > div:last-child{
  border-bottom:0;
}

.project-facts > div:hover{
  transform:translateX(6px);
  background:rgba(0,150,64,0.04);
}

.fact-icon{
  width:52px;
  height:52px;
  flex-shrink:0;
}

.fact-icon img{
  width:100%;
  height:100%;
  object-fit:contain;
  transition:transform .25s ease;
}

.project-facts > div:hover .fact-icon img{
  transform:scale(1.08);
}

.fact-text{
  display:flex;
  flex-direction:column;
}

.project-facts strong{
  font-size:30px;
  font-weight:900;
  line-height:1;
}

.project-facts span{
  margin-top:6px;
  font-size:14px;
  color:var(--text);
}

.philosophy{
  padding:105px 0;
  background:var(--dark);
  color:var(--white);
}

.philosophy-grid{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:80px;
}

.philosophy p:last-child{
  margin:0;
  color:#e4e0dc;
  font-size:21px;
  line-height:1.75;
}

.footer{
  background:var(--soft);
}

.footer-grid{
  display:grid;
  grid-template-columns:1.15fr 1fr .9fr;
  gap:48px;
  align-items:center;
  padding:46px 0;
}

.footer-brand img{
  width:265px;
}

.footer-brand p{
  max-width:380px;
  color:var(--text);
  line-height:1.6;
  font-weight:650;
}

.footer-contact{
  display:grid;
  gap:13px;
  color:var(--text);
  font-weight:750;
}

.footer-contact a:hover{
  color:var(--green);
}

.footer-cta p{
  margin:18px 0 0;
  color:var(--text);
  font-size:14px;
  line-height:1.6;
}

.footer-bottom{
  background:var(--dark);
  color:var(--line);
  padding:18px;
  text-align:center;
  font-size:12px;
  font-weight:850;
  text-transform:uppercase;
  letter-spacing:.16em;
}

/* RESPONSIVE */
@media(max-width:1050px){
  .nav{
    display:none;
  }

  .hero,
  .about-grid,
  .philosophy-grid,
  .footer-grid{
    grid-template-columns:1fr;
  }

  .hero-copy{
    padding:70px 24px;
  }

  .hero-image{
    min-height:420px;
  }

  .proof-grid{
    grid-template-columns:1fr 1fr;
  }

  .cards{
    grid-template-columns:1fr 1fr;
  }

  .project{
    grid-template-columns:1fr;
  }

  .project-info{
    padding:70px 24px;
  }

  .project-facts{
    padding:36px 24px;
  }
}

@media(max-width:640px){
  .container{
    width:min(100% - 28px,1180px);
  }

  .header-inner{
    min-height:78px;
  }

  .logo img{
    width:220px;
  }

  .hero h1{
    font-size:52px;
  }

  .proof-grid,
  .cards{
    grid-template-columns:1fr;
  }
  
.cards article{
    display:block;
    min-height:auto;
    padding:28px 22px;
  }

  .icon{
    width:56px;
    height:56px;
    margin-bottom:18px;
    display:flex;
  }

  .icon img{
    width:100%;
    height:100%;
    object-fit:contain;
    display:block;
  }

  .about,
  .approach{
    padding:78px 0;
  }

  .closing{
    font-size:24px;

  }
 /* PROJECT DETAIL PAGE */
.project-detail-hero{
  background:var(--dark);
  color:var(--white);
  padding:90px 0;
}

.project-detail-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:70px;
  align-items:center;
}

.project-detail-hero h1{
  margin:0;
  font-size:clamp(52px,6vw,86px);
  line-height:.95;
  font-weight:900;
  letter-spacing:-.06em;
}

.project-detail-lead{
  margin:28px 0 0;
  max-width:560px;
  color:#d8d5d1;
  font-size:18px;
  line-height:1.75;
}

.project-detail-image{
  background:#e9e6e2;
  padding:22px;
}

.project-detail-image img{
  width:100%;
  height:auto;
  display:block;
}

.project-detail-facts{
  background:#f1eee9;
  border-bottom:1px solid var(--line);
}

.fact-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
}

.fact-grid div{
  padding:34px 28px;
  border-left:1px solid var(--line);
}

.fact-grid div:first-child{
  border-left:0;
}

.fact-grid strong{
  display:block;
  font-size:36px;
  line-height:1;
  font-weight:900;
  color:var(--dark);
}

.fact-grid span{
  display:block;
  margin-top:8px;
  color:var(--text);
  font-size:14px;
  font-weight:650;
}