:root{
  --bg:#f9fafb; --panel:#ffffff; --muted:#4a5568; --text:#1a202c;
  --brand:#1d976c; --brand-2:#4ca3ff; --accent:#e67e22;
  --radius:16px; --shadow:0 4px 18px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
html,body{margin:0; padding:0; background:var(--bg); color:var(--text);
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,sans-serif; line-height:1.6}
a{color:var(--brand); text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%; height:auto; border-radius:var(--radius)}

.container{width:min(1100px, 92%); margin-inline:auto}
.btn{display:inline-flex; align-items:center; justify-content:center; gap:.6rem; padding:.85rem 1.15rem;
  border-radius:999px; border:1px solid #e2e8f0; background:linear-gradient(180deg,#fdfdfd,#f1f5f9);
  color:var(--text); box-shadow:var(--shadow); font-weight:600; cursor:pointer}
.btn:hover{filter:brightness(1.03)}
.btn.primary{background:linear-gradient(180deg, rgba(29,151,108,.14), rgba(76,163,255,.12)); border-color:#dbeafe}
.btn.danger{background:linear-gradient(180deg,#fff5f5,#fee2e2); border-color:#fecaca}

header.site-header{position:sticky; top:0; z-index:50; backdrop-filter:saturate(140%) blur(8px);
  background:rgba(255,255,255,.8); border-bottom:1px solid #e2e8f0}
.navbar{display:flex; align-items:center; justify-content:space-between; padding:.9rem 0; gap:1rem}
.brand{display:flex; align-items:center; gap:.75rem; font-weight:800; letter-spacing:.5px; white-space:nowrap}
.brand .logo{display:grid; place-items:center; width:40px; height:40px; border-radius:12px;
  background:conic-gradient(from 220deg at 50% 50%, var(--brand), var(--brand-2));
  box-shadow:inset 0 0 0 2px rgba(0,0,0,.05)}
nav.links{display:flex; flex-wrap:wrap; align-items:center; justify-content:flex-end}
nav.links a{margin-left:.6rem; padding:.4rem .7rem; border-radius:10px; border:1px solid transparent}
nav.links a:hover{border-color:#e2e8f0; background:#f7fafc}
nav.links a.active{border-color:#dbeafe; background:#eff6ff}

.hero{position:relative; overflow:hidden; padding:5.5rem 0 3.5rem; background:linear-gradient(180deg,#ffffff,#f9fafb)}
.hero::before{content:""; position:absolute; inset:-20% -20% auto -20%; height:380px;
  background:radial-gradient(800px 260px at 30% 0,rgba(29,151,108,.12),transparent 60%),
             radial-gradient(800px 260px at 70% 0,rgba(76,163,255,.12),transparent 60%)}
.hero .container{position:relative}
.hero h1{font-size:clamp(2rem, 3.5vw + .8rem, 3.2rem); line-height:1.12; margin:0 0 1rem; letter-spacing:.3px}
.hero p{max-width:62ch; color:var(--muted); font-size:1.05rem; margin:0}
.hero-cta{display:flex; flex-wrap:wrap; gap:.8rem; margin-top:1.2rem}
.badges{display:flex; flex-wrap:wrap; gap:.6rem; margin-top:1.2rem}
.badge{font-size:.9rem; padding:.35rem .65rem; border-radius:999px; border:1px solid #e2e8f0; background:#ffffff}

section{padding:3rem 0}
section .head{display:flex; justify-content:space-between; align-items:flex-end; gap:1rem; margin-bottom:1rem}
section .head h2{margin:0; font-size:1.6rem}
section .head p{margin:0; color:var(--muted)}

.grid{display:grid; gap:1.2rem}
.grid.cols-3{grid-template-columns:repeat(3, 1fr)}
.grid.cols-2{grid-template-columns:repeat(2, 1fr)}
@media (max-width:900px){ .grid.cols-3, .grid.cols-2{grid-template-columns:1fr} }

.card{background:var(--panel); border:1px solid #e2e8f0; border-radius:var(--radius);
  padding:1.1rem 1.1rem 1.2rem; box-shadow:var(--shadow)}
.card h3{margin:.2rem 0 .35rem; font-size:1.15rem}
.card p{color:var(--muted); margin:.2rem 0 .6rem}

ul.dash{list-style:none; padding:0; margin:0}
ul.dash li{padding:.35rem 0; position:relative; padding-left:1.1rem}
ul.dash li::before{content:"—"; position:absolute; left:0; color:var(--brand)}

footer.site-footer{padding:2rem 0 3rem; color:var(--muted)}
footer .row{display:flex; flex-wrap:wrap; gap:1rem; align-items:center; justify-content:space-between;
  border-top:1px solid #e2e8f0; padding-top:1rem}

.hide{display:none}

/* Leistungen: Accordion cards */
.accordion-card{cursor:pointer; transition:transform .12s ease}
.accordion-card:hover{transform:translateY(-1px)}
.summary{display:flex; justify-content:space-between; align-items:center; font-weight:700}
.arrow{transition:transform .25s ease}
.details{display:none; margin-top:.6rem; color:var(--muted)}
.accordion-card.expanded .details{display:block}
.accordion-card.expanded .arrow{transform:rotate(180deg)}

/* Dekorplatten: Gallery */
.image-grid{display:grid; grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); gap:2.0rem 1.2rem; margin-bottom:2.2rem}
.image-card{background:#fff; border:1px solid #e2e8f0; border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); display:flex; flex-direction:column}
.image-wrapper{width:100%; height:210px; background:#fff; display:flex; justify-content:center; align-items:center; overflow:hidden}
.image-wrapper img{max-width:100%; max-height:100%; object-fit:contain; display:block; border-radius:0}
.image-caption{padding:1rem; text-align:center; font-weight:700; flex-grow:1}

.portfolio-grid{display:grid; grid-template-columns:repeat(auto-fit, minmax(250px, 1fr)); gap:1.2rem}
.portfolio-card{background:#fff; border:1px solid #e2e8f0; border-radius:var(--radius); padding:1.1rem; text-align:center; box-shadow:var(--shadow);
  display:flex; flex-direction:column; justify-content:space-between}
.portfolio-card img{width:96px; height:96px; object-fit:contain; margin:0 auto .8rem; border-radius:0}
.portfolio-card h3{font-size:1rem; font-weight:900; letter-spacing:.06em; margin:.2rem 0 .4rem}
.portfolio-card p{font-size:.95rem; color:var(--muted); margin:.2rem 0 .6rem}
.portfolio-button{display:inline-flex; justify-content:center; padding:.6rem .95rem; border-radius:12px; border:1px solid #e2e8f0;
  background:linear-gradient(180deg, rgba(29,151,108,.14), rgba(29,151,108,.06)); color:var(--text); font-weight:700}
.portfolio-button:hover{filter:brightness(1.03); text-decoration:none}

/* Forms */
.contact{display:grid; grid-template-columns:1.4fr .9fr; gap:1.2rem}
@media (max-width:900px){ .contact{grid-template-columns:1fr} }
.contact form{display:grid; gap:.8rem}
.field{display:grid; gap:.35rem}
.field input, .field textarea{width:100%; padding:.9rem 1rem; border-radius:12px; border:1px solid #cbd5e0; background:#fff; color:var(--text)}
.field textarea{min-height:130px; resize:vertical}
.notice{border:1px solid #e2e8f0; background:#fff; border-radius:14px; padding:.9rem 1rem}
.notice.ok{border-color:#bbf7d0; background:#f0fdf4}
.notice.err{border-color:#fecaca; background:#fff5f5}