:root{
    --orange:#ef7d00;
    --gold:#ffc400;
    --amber:#f59300;
    --yellow:#ffcc00;
    --ink:#15181f;
    --ink-soft:#4b515c;
    --muted:#767d89;
    --line:rgba(21,24,31,.10);
    --line-soft:rgba(21,24,31,.06);
    --paper:#ffffff;
    --paper-warm:#f8f6f1;
    --paper-warm2:#f3efe6;
    --space:#0b0e15;
    --space-2:#11151f;
    --sun-grad:linear-gradient(118deg,#ffce3a 0%,#f59300 46%,#ef7d00 100%);
    --hh:74px;
    --maxw:1180px;
    --r:18px;
    --font:"Inter","Helvetica Neue","Segoe UI",Roboto,Arial,system-ui,sans-serif;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{
    scroll-behavior:smooth;
    overflow-x:hidden;overflow-x:clip;
    -webkit-text-size-adjust:100%;text-size-adjust:100%;
  }
  body{
    font-family:var(--font);
    color:var(--ink);
    background:var(--paper);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;overflow-x:clip;
    min-width:0;
    touch-action:pan-y pinch-zoom;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  ::selection{background:var(--gold);color:#2a1c00}

  .wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,5vw,44px)}
  section{position:relative}
  .anchor{scroll-margin-top:88px}

  /* ---------- typography helpers ---------- */
  h1,h2,h3{line-height:1.06;letter-spacing:-.02em;font-weight:800}
  .eyebrow{
    display:inline-flex;align-items:center;gap:10px;
    font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
    color:var(--muted);
  }
  .eyebrow::before{
    content:"";width:26px;height:2px;border-radius:2px;background:var(--sun-grad);
  }
  .eyebrow.on-dark{color:rgba(255,255,255,.62)}
  .lead{font-size:clamp(17px,2vw,20px);color:var(--ink-soft);line-height:1.62;max-width:62ch}
  .grad-text{
    background:var(--sun-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  }

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;gap:9px;
    padding:14px 24px;border-radius:999px;font-weight:700;font-size:15px;
    border:1px solid transparent;cursor:pointer;
    transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease,transform .3s ease;
  }
  .btn svg{width:17px;height:17px}
  .btn-primary{background:var(--sun-grad);color:#241700;box-shadow:0 10px 26px -10px rgba(239,125,0,.65)}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -10px rgba(239,125,0,.78)}
  .btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
  .btn-ghost:hover{border-color:var(--orange);color:var(--orange);background:rgba(239,125,0,.05)}
  .btn-ghost.on-dark{border-color:rgba(255,255,255,.24);color:#fff}
  .btn-ghost.on-dark:hover{border-color:var(--gold);color:var(--gold);background:rgba(255,196,0,.08)}

  /* ---------- header ---------- */
  header.site{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.82);
    backdrop-filter:saturate(160%) blur(14px);
    -webkit-backdrop-filter:saturate(160%) blur(14px);
    border-bottom:1px solid transparent;
    transition:border-color .3s ease,box-shadow .3s ease,background-color .3s ease;
  }
  header.site.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 24px -18px rgba(0,0,0,.4)}
  .bar{height:var(--hh);display:flex;align-items:center;justify-content:space-between;gap:24px}
  .brand{display:flex;align-items:center;gap:12px}
  .brand img{height:44px;width:auto}
  nav.main{display:flex;align-items:center;gap:6px}
  nav.main a{
    padding:9px 14px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-soft);
    transition:color .25s ease,background-color .25s ease;
  }
  nav.main a:hover{color:var(--ink);background:var(--paper-warm)}
  nav.main a.cta{
    margin-left:6px;background:var(--ink);color:#fff;padding:10px 18px;
  }
  nav.main a.cta:hover{background:var(--orange);color:#fff}
  .nav-toggle{
    display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
    background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  }
  .nav-toggle span{display:block;width:19px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s ease,opacity .3s ease}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  /* ---------- hero ---------- */
  .hero{position:relative;overflow:hidden;padding:clamp(48px,7vw,88px) 0 clamp(40px,6vw,72px)}
  .hero::before{
    content:"";position:absolute;z-index:0;
    top:-260px;right:-160px;width:760px;height:760px;border-radius:50%;
    background:radial-gradient(circle at 50% 50%,rgba(255,206,58,.55),rgba(245,147,0,.20) 34%,rgba(239,125,0,0) 66%);
    filter:blur(4px);pointer-events:none;
  }
  .hero::after{
    content:"";position:absolute;z-index:0;left:-200px;bottom:-220px;width:520px;height:520px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,196,0,.16),transparent 68%);pointer-events:none;
  }
  .hero .wrap{position:relative;z-index:1}
  .hero-grid{
    display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
    gap:clamp(36px,5vw,72px);align-items:center;
  }
  .hero h1{
    font-size:clamp(36px,4.9vw,64px);margin:22px 0 22px;max-width:15ch;
  }
  .hero .lead{margin-bottom:34px}
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
  .hero-fields{
    margin-top:clamp(34px,5vw,52px);display:flex;flex-wrap:wrap;gap:8px 10px;
  }
  .chip{
    font-size:13px;font-weight:600;color:var(--ink-soft);
    border:1px solid var(--line);border-radius:999px;padding:7px 13px;background:#fff;
    transition:border-color .25s ease,color .25s ease;
  }
  .chip:hover{border-color:var(--orange);color:var(--orange)}

  /* hero image card */
  .hero-media{position:relative;z-index:1}
  .hero-media::before{
    content:"";position:absolute;right:-20px;bottom:-20px;width:46%;height:46%;
    border-radius:28px;background:var(--sun-grad);opacity:.9;
  }
  .hero-media .frame{
    position:relative;border-radius:22px;overflow:hidden;
    box-shadow:0 40px 80px -40px rgba(30,20,0,.5);
    border:1px solid var(--line-soft);
  }
  .hero-media img{width:100%;height:clamp(340px,42vw,580px);object-fit:cover;object-position:center 42%}
  .hero-media .scrim{
    position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(11,14,21,.42) 0%,rgba(11,14,21,.05) 42%,rgba(255,196,0,.05) 100%);
  }
  .hero-media .badge{
    position:absolute;left:22px;bottom:22px;right:22px;display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;justify-content:space-between;
  }
  .rtb{
    display:inline-flex;align-items:center;gap:12px;background:rgba(255,255,255,.94);
    padding:12px 18px;border-radius:14px;backdrop-filter:blur(6px);box-shadow:0 12px 30px -14px rgba(0,0,0,.5);
  }
  .rtb .dot{width:32px;height:32px;border-radius:9px;background:var(--sun-grad);display:flex;align-items:center;justify-content:center}
  .rtb .dot svg{width:18px;height:18px;color:#241700}
  .rtb b{font-size:15px;display:block;line-height:1.2}
  .rtb small{font-size:12px;color:var(--muted)}
  .hero-media .cred{
    font-size:12px;color:rgba(255,255,255,.9);background:rgba(11,14,21,.4);padding:6px 12px;border-radius:999px;backdrop-filter:blur(4px);
  }

  /* ---------- kelvin / space section ---------- */
  .space{background:var(--space);color:#fff;overflow:hidden;padding:clamp(70px,10vw,130px) 0}
  .space::before{
    content:"";position:absolute;inset:0;opacity:.5;
    background:
      radial-gradient(1px 1px at 20% 30%,rgba(255,255,255,.7),transparent),
      radial-gradient(1px 1px at 70% 20%,rgba(255,255,255,.5),transparent),
      radial-gradient(1px 1px at 40% 70%,rgba(255,255,255,.45),transparent),
      radial-gradient(1px 1px at 85% 60%,rgba(255,255,255,.55),transparent),
      radial-gradient(1px 1px at 60% 85%,rgba(255,255,255,.4),transparent),
      radial-gradient(1.5px 1.5px at 12% 78%,rgba(255,255,255,.5),transparent);
    pointer-events:none;
  }
  .space .wrap{position:relative;z-index:1}
  .space-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(40px,6vw,80px);align-items:center}
  .space h2{font-size:clamp(30px,4.6vw,52px);margin:20px 0 22px;color:#fff}
  .space p{color:rgba(255,255,255,.72);font-size:clamp(16px,1.7vw,19px);max-width:52ch}
  .space .accent{color:#fff;font-weight:600}
  .kelvin-note{margin-top:26px;display:flex;gap:22px;flex-wrap:wrap}
  .kelvin-note .kv b{display:block;font-size:26px;background:var(--sun-grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800}
  .kelvin-note .kv span{font-size:12.5px;color:rgba(255,255,255,.55);letter-spacing:.04em}
  .sun-visual{position:relative;display:flex;align-items:center;justify-content:center;min-height:340px}
  .sun-rays{
    position:absolute;width:min(520px,110vw);aspect-ratio:1;border-radius:50%;pointer-events:none;
    background:repeating-conic-gradient(from 0deg,rgba(255,190,60,.055) 0deg 9deg,transparent 9deg 30deg);
    -webkit-mask:radial-gradient(circle,transparent 32%,#000 46%,transparent 64%);
    mask:radial-gradient(circle,transparent 32%,#000 46%,transparent 64%);
  }
  .sun-disc{
    position:relative;width:min(360px,80vw);aspect-ratio:1;border-radius:50%;
    background:radial-gradient(circle at 50% 48%,#ffffff 0%,#fff7dd 9%,#ffdd7a 20%,#ffb02e 34%,rgba(245,120,0,.55) 50%,rgba(239,125,0,.12) 70%,transparent 82%);
    box-shadow:0 0 120px 30px rgba(255,180,40,.30);
  }
  .sun-disc::after{
    content:"≈ 5.800 K";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
    font-weight:800;font-size:clamp(22px,3.6vw,34px);color:#3a2600;letter-spacing:-.02em;
  }
  .sun-cap{position:absolute;bottom:6px;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.5)}

  /* ---------- generic section head ---------- */
  .sec{padding:clamp(64px,9vw,110px) 0}
  .sec.warm{background:var(--paper-warm)}
  .sec-head{max-width:760px;margin-bottom:clamp(38px,5vw,58px)}
  .sec-head h2{font-size:clamp(28px,4.4vw,46px);margin:18px 0 18px}

  /* ---------- fields grid ---------- */
  .fields{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
  .field{
    background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 22px 26px;
    transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  }
  .field:hover{transform:translateY(-6px);box-shadow:0 24px 44px -26px rgba(30,20,0,.35);border-color:rgba(239,125,0,.35)}
  .field .ic{
    width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center;
    background:linear-gradient(140deg,rgba(255,196,0,.16),rgba(239,125,0,.12));color:var(--orange);margin-bottom:18px;
  }
  .field .ic svg{width:26px;height:26px}
  .field h3{font-size:17px;letter-spacing:-.01em;margin-bottom:8px;font-weight:700}
  .field p{font-size:14px;color:var(--muted);line-height:1.55}

  .autark{
    margin-top:20px;background:var(--space);color:#fff;border-radius:20px;overflow:hidden;position:relative;
    padding:clamp(30px,4vw,46px);display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:center;
  }
  .autark::before{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,196,0,.32),transparent 66%);pointer-events:none}
  .autark .txt{position:relative;z-index:1}
  .autark h3{font-size:clamp(21px,2.6vw,30px);color:#fff;margin-bottom:12px}
  .autark p{color:rgba(255,255,255,.72);font-size:16px;max-width:52ch}
  .autark .side{position:relative;z-index:1;display:flex;gap:10px;flex-wrap:wrap}
  .autark .side .pill{border:1px solid rgba(255,255,255,.2);color:#fff;padding:9px 15px;border-radius:999px;font-size:13.5px;font-weight:600}

  /* ---------- unternehmen ---------- */
  .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,5vw,64px);align-items:center}
  .about-media{position:relative}
  .about-media img{width:100%;height:clamp(320px,42vw,520px);object-fit:cover;border-radius:20px;border:1px solid var(--line-soft)}
  .about-media .tint{position:absolute;inset:0;border-radius:20px;background:linear-gradient(180deg,transparent 55%,rgba(11,14,21,.28));pointer-events:none}
  .about-media .stat-float{
    position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.95);border-radius:14px;padding:16px 20px;
    box-shadow:0 18px 40px -22px rgba(0,0,0,.5);backdrop-filter:blur(6px);
  }
  .about-media .stat-float b{display:block;font-size:20px;line-height:1.1;font-weight:800}
  .about-media .stat-float span{font-size:12.5px;color:var(--muted)}
  /* ---------- energieautarkie-schema (unternehmen) ---------- */
  .autarkie{
    background:#fff;border:1px solid var(--line);border-radius:20px;
    padding:clamp(14px,2vw,20px) clamp(14px,2vw,20px) 0;
    box-shadow:0 30px 70px -50px rgba(31,26,18,.45);
  }
  .au-label{
    display:block;text-align:center;font-size:11px;font-weight:800;letter-spacing:.14em;
    text-transform:uppercase;color:var(--orange);margin:14px 0 0;
  }
  .au-label.soft{color:var(--muted);margin:12px 0 2px}
  .au-inner{
    border:1.5px dashed rgba(239,125,0,.5);border-radius:16px;
    padding:clamp(12px,1.6vw,18px) clamp(8px,1.4vw,14px) 10px;
  }
  /* flow läuft horizontal wie in der kundenskizze: erzeugung -> speicherung -> abnehmer */
  .au-flow{display:flex;align-items:center;justify-content:center}
  .au-node{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
    text-align:center;border:1.5px solid rgba(239,125,0,.55);
    background:linear-gradient(160deg,#fff 40%,#fff3e3);
  }
  .au-node svg{width:clamp(17px,2.3vw,26px);height:clamp(17px,2.3vw,26px);color:var(--orange);flex:none}
  .au-node b{font-size:clamp(10.5px,1.35vw,14px);line-height:1.15;font-weight:800;color:var(--ink)}
  .au-node.round{flex:1 1 0;max-width:138px;min-width:0;aspect-ratio:1;border-radius:50%;padding:8px}
  .au-node.box{flex:1 1 0;max-width:132px;min-width:0;border-radius:14px;padding:12px 6px;background:var(--sun-grad);border-color:transparent}
  .au-node.box svg,.au-node.box b{color:#241700}
  .au-arrow{width:clamp(18px,2vw,26px);height:18px;color:var(--orange);opacity:.75;margin:0 clamp(3px,.6vw,8px);flex:none}
  .au-cap{text-align:center;padding:10px 8px 18px}
  .au-cap b{display:block;font-size:17px;font-weight:800}

  .about-copy h2{font-size:clamp(27px,4vw,44px);margin:18px 0 22px}
  .about-copy p{color:var(--ink-soft);margin-bottom:16px}
  .pull{
    margin:26px 0;padding:20px 24px;border-left:3px solid transparent;
    border-image:var(--sun-grad) 1;background:var(--paper-warm2);border-radius:0 12px 12px 0;
    font-size:clamp(18px,2.1vw,22px);font-weight:600;color:var(--ink);line-height:1.4;letter-spacing:-.01em;
  }
  .traits{display:flex;flex-wrap:wrap;gap:16px 22px;margin-top:22px}
  .traits span{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink-soft)}
  .traits span::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--sun-grad)}

  /* ---------- leistungen / process ---------- */
  .phases{display:grid;gap:18px}
  .phase{
    background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
    display:grid;grid-template-columns:230px 1fr;
    transition:box-shadow .3s ease,border-color .3s ease;
  }
  .phase:hover{box-shadow:0 26px 50px -34px rgba(30,20,0,.4);border-color:rgba(239,125,0,.3)}
  .phase .p-head{
    padding:26px 26px;background:var(--paper-warm);border-right:1px solid var(--line-soft);position:relative;
  }
  .phase .p-idx{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--orange)}
  .phase .p-head h3{font-size:19px;margin-top:10px;letter-spacing:-.01em}
  .phase .p-body{padding:24px 26px;display:grid;grid-template-columns:1fr 1fr;gap:12px 26px}
  .phase .p-body .item{display:flex;gap:11px;font-size:15px;color:var(--ink-soft);align-items:flex-start;line-height:1.45}
  .phase .p-body .item svg{width:18px;height:18px;color:var(--orange);flex:0 0 auto;margin-top:3px}
  .rtb-tag{
    display:inline-block;margin-left:8px;font-size:11px;font-weight:700;letter-spacing:.04em;
    background:var(--sun-grad);color:#241700;padding:2px 8px;border-radius:6px;vertical-align:middle;white-space:nowrap;
  }

  /* ---------- projekte ---------- */
  .stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:clamp(36px,5vw,54px)}
  .stat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 24px}
  .stat b{display:block;font-size:clamp(34px,5vw,50px);font-weight:800;letter-spacing:-.03em;line-height:1}
  .stat b em{font-style:normal;font-size:.5em;font-weight:700;color:var(--muted);margin-left:2px}
  .stat span{font-size:14px;color:var(--muted);margin-top:10px;display:block;line-height:1.45}
  .stat.lg{border-color:rgba(239,125,0,.4);background:linear-gradient(150deg,#fff 30%,#fff3e3);box-shadow:0 16px 38px -24px rgba(239,125,0,.55)}
  .stat.lg b{font-size:clamp(46px,6.5vw,68px);background:var(--sun-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
  .stat.lg b em{color:var(--orange);-webkit-text-fill-color:var(--orange)}
  .stat.lg span{color:var(--ink-soft);font-weight:600}
  /* ---------- standort-karte (projekte) ---------- */
  .proj-map{
    display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);align-items:center;
    gap:clamp(20px,4vw,52px);background:#fff;border:1px solid var(--line);border-radius:20px;
    padding:clamp(18px,3vw,36px);margin:26px 0 34px;
    box-shadow:0 30px 70px -50px rgba(31,26,18,.45);
  }
  .pm-map{max-width:340px;margin:0 auto;width:100%}
  .pm-map svg{display:block;width:100%;height:auto}
  .pm-land{fill:#fdf2e2;stroke:rgba(239,125,0,.5);stroke-width:1.2;stroke-linejoin:round}
  .pm-pin circle{fill:var(--orange);stroke:#fff;stroke-width:2}
  .pm-pin .halo{fill:rgba(239,125,0,.16);stroke:none}
  .pm-pin text{fill:#fff;font-size:11px;font-weight:800;text-anchor:middle;dominant-baseline:central;font-family:inherit}
  .pm-legend h3{font-size:clamp(19px,2vw,23px);font-weight:800;margin:0 0 14px}
  .pm-legend ol{list-style:none;display:grid;gap:9px}
  .pm-legend li{display:flex;align-items:baseline;gap:10px;font-size:14.5px}
  .pm-legend li i{
    flex:none;width:22px;height:22px;border-radius:50%;background:var(--orange);color:#fff;
    font-style:normal;font-weight:800;font-size:11.5px;display:flex;align-items:center;justify-content:center;
    align-self:center;
  }
  .pm-legend li b{font-weight:800}
  .pm-legend li span{color:var(--muted);font-size:13px}
  .pm-note{margin-top:14px;font-size:12.5px;color:var(--muted)}
  .projects{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
  .proj{
    background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 24px 24px;position:relative;overflow:hidden;
    transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  }
  .proj::before{content:"";position:absolute;left:0;top:0;height:4px;width:100%;background:var(--sun-grad);transform:scaleX(0);transform-origin:left;transition:transform .4s ease}
  .proj:hover{transform:translateY(-6px);box-shadow:0 30px 56px -34px rgba(30,20,0,.4);border-color:rgba(239,125,0,.3)}
  .proj:hover::before{transform:scaleX(1)}
  .proj .p-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px}
  .proj .area{font-size:38px;font-weight:800;letter-spacing:-.03em;line-height:1}
  .proj .area em{font-style:normal;font-size:16px;color:var(--muted);font-weight:700;margin-left:3px}
  .proj .area.alt{font-size:23px;background:var(--sun-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
  .proj .region{font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);text-align:right;max-width:14ch;line-height:1.3}
  .proj h3{font-size:22px;margin-bottom:10px;letter-spacing:-.02em}
  .proj p{font-size:14.5px;color:var(--ink-soft);line-height:1.55;margin-bottom:16px}
  .tags{display:flex;flex-wrap:wrap;gap:7px}
  .tags span{font-size:12px;font-weight:600;color:var(--ink-soft);border:1px solid var(--line);border-radius:999px;padding:5px 11px}

  /* ---------- kontakt ---------- */
  .contact{background:var(--space);color:#fff;overflow:hidden;padding:clamp(64px,9vw,110px) 0}
  .contact::before{content:"";position:absolute;left:-160px;top:-160px;width:480px;height:480px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,196,0,.26),transparent 66%);pointer-events:none}
  .contact .wrap{position:relative;z-index:1}
  .contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(40px,6vw,72px);align-items:center}
  .contact h2{font-size:clamp(30px,4.6vw,50px);color:#fff;margin:18px 0 20px}
  .contact p.lead{color:rgba(255,255,255,.72);margin-bottom:28px}
  .card-contact{
    background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
    border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:clamp(28px,3.4vw,38px);
  }
  .card-contact .row{display:flex;gap:15px;align-items:flex-start;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.1)}
  .card-contact .row:last-child{border-bottom:0;padding-bottom:0}
  .card-contact .row:first-child{padding-top:0}
  .card-contact .ic{width:42px;height:42px;flex:0 0 auto;border-radius:11px;display:flex;align-items:center;justify-content:center;background:rgba(255,196,0,.12);color:var(--gold)}
  .card-contact .ic svg{width:20px;height:20px}
  .card-contact .k{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.5)}
  .card-contact .v{font-size:17px;font-weight:600;color:#fff;margin-top:3px;line-height:1.5}
  .card-contact .v a{transition:color .25s ease}
  .card-contact .v a:hover{color:var(--gold)}

  /* ---------- footer ---------- */
  footer.site{background:#070a10;color:rgba(255,255,255,.66);padding:clamp(48px,6vw,72px) 0 30px}
  .foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
  .foot-brand img{height:48px;margin-bottom:18px}
  .foot-brand p{font-size:14.5px;max-width:38ch;line-height:1.6}
  .foot-col h4{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.42);margin-bottom:16px;font-weight:700}
  .foot-col a,.foot-col p{display:block;font-size:14.5px;color:rgba(255,255,255,.72);margin-bottom:11px;transition:color .25s ease}
  .foot-col a:hover{color:var(--gold)}
  .foot-bot{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding-top:24px;font-size:13px;color:rgba(255,255,255,.45)}

  /* ---------- energiemanagement diagram ---------- */
  .emsec{background:var(--space-2);color:#fff;overflow:hidden;padding:clamp(64px,9vw,110px) 0}
  .emsec::before{content:"";position:absolute;right:-160px;top:-160px;width:520px;height:520px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,196,0,.18),transparent 66%);pointer-events:none}
  .emsec .wrap{position:relative;z-index:1}
  .emsec .sec-head h2{color:#fff}
  .emsec .sec-head .lead{color:rgba(255,255,255,.72)}
  .em-wrap{display:flex;flex-direction:column;align-items:center}
  .em-label{font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.55);
    margin-bottom:16px;display:inline-flex;align-items:center;gap:10px}
  .em-label::before,.em-label::after{content:"";width:22px;height:2px;background:var(--sun-grad);border-radius:2px}
  .em-row{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;width:100%}
  .em-node{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:14px;
    padding:18px 12px 16px;text-align:center;transition:transform .3s ease,border-color .3s ease,background-color .3s ease}
  .em-node:hover{transform:translateY(-4px);border-color:rgba(255,196,0,.5);background:rgba(255,196,0,.07)}
  .em-node .ic{width:40px;height:40px;margin:0 auto 10px;border-radius:11px;display:flex;align-items:center;justify-content:center;
    background:linear-gradient(140deg,rgba(255,196,0,.18),rgba(239,125,0,.12));color:var(--gold)}
  .em-node .ic svg{width:22px;height:22px}
  .em-node b{display:block;font-size:14px;color:#fff;line-height:1.2;font-weight:700}
  .em-node span{font-size:11.5px;color:rgba(255,255,255,.5)}
  .em-flow{height:42px;display:flex;align-items:center;justify-content:center;color:var(--gold)}
  .em-flow svg{width:26px;height:26px}
  .em-hub{width:100%;max-width:640px;background:var(--sun-grad);color:#241700;border-radius:16px;
    padding:20px 26px;text-align:center;box-shadow:0 22px 54px -20px rgba(239,125,0,.6)}
  .em-hub b{display:block;font-size:clamp(17px,2.2vw,21px);font-weight:800;letter-spacing:-.01em}
  .em-hub span{font-size:13.5px;color:rgba(36,23,0,.74);font-weight:600}

  /* ---------- grüne gase value chain ---------- */
  .chain{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:6px}
  .chain .step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 22px 26px;position:relative;
    transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
  .chain .step:hover{transform:translateY(-6px);box-shadow:0 24px 44px -26px rgba(30,20,0,.35);border-color:rgba(239,125,0,.35)}
  .chain .step .n{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--orange)}
  .chain .step h3{font-size:17px;margin:12px 0 8px;letter-spacing:-.01em}
  .chain .step p{font-size:14px;color:var(--muted);line-height:1.55}
  .figure{margin-top:26px;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
  .figure img{width:100%;display:block}
  .figure figcaption{padding:13px 20px;font-size:13px;color:var(--muted);border-top:1px solid var(--line-soft)}
  .figure .diagram{padding:clamp(16px,3vw,32px) clamp(10px,2.4vw,28px);overflow-x:auto;-webkit-overflow-scrolling:touch}
  .figure .diagram svg{display:block;width:100%;min-width:840px;height:auto}
  .pf-n{font:700 12px var(--font);fill:#c96a00;letter-spacing:.16em}
  .pf-h{font:800 20px var(--font);fill:var(--ink);letter-spacing:-.01em}
  .pf-t{font:700 10.5px var(--font);fill:var(--muted);letter-spacing:.14em}
  .pf-l{font:600 13.5px var(--font);fill:var(--ink-soft)}
  .pf-m{font:700 16px var(--font)}
  .pf-f{font:700 13px var(--font);fill:var(--ink)}
  .pf-fs{font:600 11.5px var(--font);fill:var(--muted)}

  /* ---------- hero benefit strip ---------- */
  .hero-benefit{
    margin:26px 0 6px;max-width:640px;display:flex;gap:14px;align-items:flex-start;
    background:linear-gradient(140deg,rgba(255,196,0,.14),rgba(239,125,0,.07));
    border:1px solid rgba(239,125,0,.28);border-radius:16px;padding:18px 22px;
  }
  .hero-benefit .dot{width:34px;height:34px;flex:0 0 auto;border-radius:10px;background:var(--sun-grad);display:flex;align-items:center;justify-content:center;color:#241700}
  .hero-benefit .dot svg{width:19px;height:19px}
  .hero-benefit p{font-size:14.5px;color:var(--ink-soft);line-height:1.55}
  .hero-benefit p b{color:var(--ink)}

  /* ---------- energiesystem-kreislauf ---------- */
  /* das rotierende quadrat (.k-orbit) hat eine mit dem drehwinkel pendelnde
     bounding-box (bis zu einer wurzel-2-fachen kantenlaenge) — ohne clipping
     entsteht daraus zyklischer seiten-overflow auf ios */
  #leistungsfelder{overflow-x:clip}
  .kreislauf{
    --ksz:min(86vw,600px);
    position:relative;width:var(--ksz);aspect-ratio:1;
    margin:clamp(30px,4.5vw,52px) auto clamp(36px,5vw,58px);
  }
  .k-arrows{position:absolute;inset:0;width:100%;height:100%}
  .k-arrows .rot{transform-origin:50% 50%;animation:k-spin 32s linear infinite}
  .k-arrows circle{stroke:rgba(239,125,0,.38)}
  .k-arrows path{fill:var(--orange);opacity:.85}
  .k-orbit{position:absolute;inset:0;animation:k-spin 96s linear infinite}
  .k-node{
    position:absolute;left:50%;top:50%;
    transform:translate(-50%,-50%) rotate(var(--a)) translateY(calc(var(--ksz)*-.38)) rotate(calc(var(--a)*-1));
  }
  .k-node .k-card{
    display:flex;flex-direction:column;align-items:center;gap:7px;
    background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:10px 13px;box-shadow:0 12px 28px -18px rgba(31,26,18,.4);
    font-size:13px;font-weight:700;color:var(--ink-soft);line-height:1.25;text-align:center;
    width:max-content;max-width:132px;
    animation:k-spin 96s linear infinite reverse;
  }
  .k-node .k-card svg{width:20px;height:20px;color:var(--orange)}
  .k-hub{
    position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
    width:35%;aspect-ratio:1;border-radius:50%;background:var(--sun-grad);
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    text-align:center;color:#241700;padding:12px;
    box-shadow:0 18px 44px -18px rgba(239,125,0,.6);
  }
  .k-hub svg{width:clamp(18px,3.4vw,24px);height:clamp(18px,3.4vw,24px);margin-bottom:2px}
  .k-hub b{font-size:clamp(12.5px,2.4vw,17px);font-weight:800;letter-spacing:-.01em;line-height:1.15}
  .k-hub span{font-size:clamp(9.5px,1.7vw,12px);opacity:.75;font-weight:600}
  @keyframes k-spin{to{transform:rotate(360deg)}}
  @media (max-width:560px){
    .k-node .k-card{font-size:10px;max-width:90px;padding:7px 9px;gap:5px}
    .k-node .k-card svg{width:15px;height:15px}
  }
  @media (prefers-reduced-motion:reduce){
    .k-arrows .rot,.k-orbit,.k-node .k-card{animation:none}
  }

  /* ---------- wertsteigerung bars ---------- */
  .wert-demo{display:grid;gap:12px;width:100%}
  .wert-demo .wbar .lbl{display:flex;justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:6px}
  .wert-demo .wbar .lbl b{color:#fff;font-size:13px}
  .wert-demo .wbar .bar{height:22px;border-radius:8px;background:rgba(255,255,255,.16)}
  .wert-demo .wbar .bar.hot{background:var(--sun-grad);box-shadow:0 8px 22px -8px rgba(239,125,0,.7)}
  .wert-demo .cap{font-size:11.5px;color:rgba(255,255,255,.45)}

  /* ---------- flächen-vergleich ---------- */
  .compare{
    background:#fff;border:1px solid var(--line);border-radius:18px;
    padding:clamp(22px,3vw,30px) clamp(22px,3vw,32px);margin-bottom:clamp(36px,5vw,54px);
  }
  .compare .big{font-size:clamp(17px,2.3vw,22px);font-weight:700;letter-spacing:-.01em;line-height:1.4}
  .compare .big em{font-style:normal;background:var(--sun-grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800}
  .cmp-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
  .cmp{border:1px solid var(--line);border-radius:999px;padding:8px 15px;font-size:13.5px;font-weight:600;color:var(--ink-soft)}
  .cmp b{color:var(--orange);font-weight:800}
  .compare .src{font-size:12px;color:var(--muted);margin-top:12px}

  /* ---------- kontakt lead form ---------- */
  .lead-form{display:grid;gap:14px;margin-top:24px}
  .lead-form .fld{display:grid;gap:6px}
  .lead-form label{font-size:13px;font-weight:600;color:rgba(255,255,255,.75)}
  .lead-form input,.lead-form textarea{
    width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
    border-radius:12px;padding:13px 16px;color:#fff;font:inherit;font-size:15px;
    transition:border-color .25s ease,background-color .25s ease;
  }
  .lead-form input::placeholder,.lead-form textarea::placeholder{color:rgba(255,255,255,.35)}
  .lead-form input:focus,.lead-form textarea:focus{outline:none;border-color:var(--gold);background:rgba(255,255,255,.09)}
  .lead-form .btn{justify-content:center}
  .form-hint{font-size:12.5px;color:rgba(255,255,255,.5);line-height:1.5}
  .form-ok{display:none;font-size:14px;font-weight:600;color:var(--gold)}
  .form-ok.show{display:block}
  .foot-bot a{transition:color .25s ease}
  .foot-bot a:hover{color:var(--gold)}

  /* ---------- reveal animation ---------- */
  .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
  .reveal.in{opacity:1;transform:none}
  .d1{transition-delay:.06s}.d2{transition-delay:.12s}.d3{transition-delay:.18s}

  /* ---------- finishing effects ---------- */
  nav.main a.active{color:var(--ink);background:var(--paper-warm)}
  nav.main a.cta.active{color:#fff;background:var(--orange)}
  .hero h1 .grad-text{background-size:220% 100%;animation:grad-shift 7s ease-in-out infinite alternate}
  @keyframes grad-shift{from{background-position:0% 50%}to{background-position:100% 50%}}
  .sun-disc{animation:sun-breathe 7s ease-in-out infinite}
  @keyframes sun-breathe{
    0%,100%{box-shadow:0 0 120px 30px rgba(255,180,40,.30)}
    50%{box-shadow:0 0 170px 52px rgba(255,180,40,.44)}
  }
  .sun-rays{animation:sun-rot 140s linear infinite}
  @keyframes sun-rot{to{transform:rotate(360deg)}}
  .space::before{animation:star-twinkle 11s ease-in-out infinite alternate}
  @keyframes star-twinkle{from{opacity:.46}to{opacity:.56}}
  .hero::before{animation:hero-sun 18s ease-in-out infinite alternate}
  @keyframes hero-sun{
    from{transform:translate(0,0) scale(1)}
    to{transform:translate(-18px,14px) scale(1.03)}
  }
  .wert-demo .wbar .bar{transform:scaleX(0);transform-origin:left;transition:transform 1.2s cubic-bezier(.22,.8,.24,1) .15s}
  .wert-demo .wbar:nth-child(2) .bar{transition-delay:.45s}
  .wert-demo.grow .wbar .bar{transform:scaleX(1)}
  .em-hub{animation:hub-glow 5s ease-in-out infinite}
  @keyframes hub-glow{
    0%,100%{box-shadow:0 22px 54px -20px rgba(239,125,0,.6)}
    50%{box-shadow:0 22px 66px -16px rgba(239,125,0,.85)}
  }
  @media (prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none}
    html{scroll-behavior:auto}
    .hero h1 .grad-text,.sun-disc,.em-hub,.sun-rays,.space::before,.hero::before{animation:none}
    .wert-demo .wbar .bar{transform:none;transition:none}
  }

  /* ---------- responsive ---------- */
  @media (max-width:1000px){
    .fields{grid-template-columns:repeat(2,1fr)}
    .projects{grid-template-columns:repeat(2,1fr)}
    .chain{grid-template-columns:repeat(2,1fr)}
    .hero-grid{grid-template-columns:1fr;gap:38px}
    .hero h1{font-size:clamp(36px,6.4vw,58px)}
    .hero-media img{height:clamp(260px,48vw,440px)}
    .hero-media::before{right:-12px;bottom:-12px}
  }
  @media (max-width:860px){
    .em-row{grid-template-columns:repeat(3,1fr)}
    .nav-toggle{display:flex}
    nav.main{
      position:fixed;top:var(--hh);left:0;right:0;
      flex-direction:column;align-items:stretch;gap:4px;
      background:#fff;border-bottom:1px solid var(--line);
      padding:16px clamp(20px,5vw,44px) 24px;
      transform:translateY(-140%);transition:transform .35s cubic-bezier(.4,0,.2,1);
      box-shadow:0 24px 40px -24px rgba(0,0,0,.4);
    }
    nav.main.open{transform:translateY(0)}
    nav.main a{padding:13px 14px;font-size:16px}
    nav.main a.cta{margin-left:0;text-align:center;margin-top:6px}
    .space-grid{grid-template-columns:1fr;gap:44px}
    .sun-visual{min-height:280px}
    .about-grid{grid-template-columns:1fr}
    .about-media{order:-1}
    .proj-map{grid-template-columns:1fr}
    .pm-map{max-width:280px}
    .autark{grid-template-columns:1fr}
    .phase{grid-template-columns:1fr}
    .phase .p-head{border-right:0;border-bottom:1px solid var(--line-soft)}
    .contact-grid{grid-template-columns:1fr}
    .stat-row{grid-template-columns:1fr;gap:12px}
    .stat{display:flex;align-items:baseline;gap:14px}
    .stat span{margin-top:0}
    .foot-top{grid-template-columns:1fr 1fr;gap:28px}
    .foot-brand{grid-column:1 / -1}
  }
  @media (max-width:560px){
    .fields{grid-template-columns:1fr}
    .projects{grid-template-columns:1fr}
    .em-row{grid-template-columns:repeat(2,1fr)}
    .chain{grid-template-columns:1fr}
    .phase .p-body{grid-template-columns:1fr}
    .foot-top{grid-template-columns:1fr}
    .hero-media .badge{left:14px;right:14px;bottom:14px}
  }

/* ---------- unterseiten: seitenkopf ---------- */
.page-hero{background:var(--paper-warm);overflow:hidden;padding:clamp(44px,6vw,72px) 0 clamp(36px,5vw,56px)}
.page-hero::before{
  content:"";position:absolute;z-index:0;top:-320px;right:-220px;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(255,206,58,.4),rgba(245,147,0,.14) 38%,rgba(239,125,0,0) 68%);
  filter:blur(4px);pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:1}
.page-hero h1{font-size:clamp(31px,4.6vw,52px);margin:18px 0 18px;max-width:22ch}
.page-hero .lead{margin-bottom:6px}
.page-hero .hero-cta{margin-top:26px}
.page-hero .hero-fields{margin-top:26px}

/* ---------- unterseiten: faq ---------- */
.faq{display:grid;gap:12px;max-width:860px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;transition:border-color .25s ease,box-shadow .25s ease}
.faq details[open]{border-color:rgba(239,125,0,.35);box-shadow:0 18px 36px -28px rgba(30,20,0,.35)}
.faq summary{
  cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:17px 20px;font-weight:700;font-size:16px;letter-spacing:-.01em;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--paper-warm);color:var(--orange);font-weight:800;font-size:17px;line-height:1;
  transition:transform .3s ease,background-color .3s ease;
}
.faq details[open] summary::after{transform:rotate(45deg);background:var(--sun-grad);color:#241700}
.faq .a{padding:0 20px 18px;color:var(--ink-soft);font-size:15px;max-width:70ch}

/* ---------- mehr-erfahren links ---------- */
.more-link{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--orange);
  margin-top:18px;transition:color .25s ease,gap .25s ease;
}
.more-link svg{width:17px;height:17px}
.more-link:hover{color:var(--amber);gap:12px}

/* ---------- cta-band der unterseiten ---------- */
.autark .btn{margin-top:20px}

/* ---------- 3-spaltiges feld-raster (responsiv) ---------- */
.fields.cols-3{grid-template-columns:repeat(3,1fr)}
@media (max-width:1000px){.fields.cols-3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.fields.cols-3{grid-template-columns:1fr}}