/* BCR Handelsgesellschaft mbH
   Direction: contemporary European, drawn like a technical sheet.
   Spruce green, concrete grey, one sun-yellow accent. Chamfered corners echo the cut corners of a PV cell.
   Fonts are system stacks (DIN-style headings where available): fast and no external font requests. */

:root{
  --paper:#F5F4F0; --concrete:#E4E2DB; --sage:#CBD8CD; --spruce:#1A3A31; --sun:#EDB92E;
  --ink:#22352F; --steel:#55645E; --line:#C9C7BF;
  --head:"Bahnschrift","DIN Alternate","DIN Next","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --body:system-ui,-apple-system,"Segoe UI","Helvetica Neue",Arial,sans-serif;
  --cut:16px; --w:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font:400 1.0625rem/1.65 var(--body);color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:inherit}
h1,h2,h3{font-family:var(--head);font-weight:600;line-height:1.12;letter-spacing:-.01em;margin:0 0 .6em;color:var(--spruce)}
h1{font-size:clamp(2.6rem,5.4vw,4.9rem);letter-spacing:-.025em}
h2{font-size:clamp(1.9rem,3.4vw,3rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em;max-width:68ch}
.wrap{width:min(100% - 3rem,var(--w));margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px}

/* Buttons and links */
.btn{display:inline-block;padding:.95rem 1.6rem;background:var(--sun);color:var(--spruce);font:600 1rem var(--head);text-decoration:none;border:0;cursor:pointer;
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,0 100%);transition:background .2s,transform .2s}
.btn:hover{background:#f5c94f;transform:translateY(-2px)}
.btn-sm{padding:.6rem 1.1rem;font-size:.95rem}
.link{font-weight:600;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px;text-decoration-color:var(--sun);transition:text-decoration-color .2s}
.link:hover{text-decoration-color:var(--spruce)}

/* Header */
.site-header{position:sticky;top:0;z-index:20;background:var(--paper);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;min-height:72px}
.brand{display:flex;align-items:center;gap:.75rem;text-decoration:none}
.mark{display:grid;place-items:center;width:46px;height:40px;background:var(--spruce);color:var(--paper);font:700 1.05rem var(--head);letter-spacing:.04em;clip-path:polygon(0 0,calc(100% - 11px) 0,100% 11px,100% 100%,0 100%)}
.brand-name{font:600 1.05rem var(--head);color:var(--spruce)}
.nav{display:flex;align-items:center;gap:2rem}
.nav a:not(.btn){text-decoration:none;font-weight:500;padding:.3rem 0;border-bottom:2px solid transparent;transition:border-color .2s}
.nav a:not(.btn):hover{border-color:var(--sun)}
.nav-toggle{display:none;background:none;border:1px solid var(--spruce);width:46px;height:40px;cursor:pointer;position:relative}
.nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{position:absolute;left:12px;width:20px;height:2px;background:var(--spruce);content:"";transition:transform .2s}
.nav-toggle i{top:18px}.nav-toggle i::before{top:-6px;left:0}.nav-toggle i::after{top:6px;left:0}
.nav-toggle[aria-expanded="true"] i{background:transparent}
.nav-toggle[aria-expanded="true"] i::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] i::after{transform:translateY(-6px) rotate(-45deg)}

/* Hero */
.hero-grid{display:grid;grid-template-columns:1.02fr 1fr;gap:3rem;align-items:center;padding-block:4.5rem 4rem}
.lead{font-size:1.3rem;line-height:1.55;color:var(--steel);max-width:34em}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:1.5rem 2rem;margin:2rem 0}
.hero-contact{font-style:normal;display:flex;flex-direction:column;gap:.15rem;padding-left:1rem;border-left:4px solid var(--sun);font-size:.98rem}
.hero-art{background:var(--spruce);padding:1.5rem;position:relative;
  background-image:linear-gradient(rgba(245,244,240,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(245,244,240,.07) 1px,transparent 1px);background-size:32px 32px;
  clip-path:polygon(0 0,calc(100% - 48px) 0,100% 48px,100% 100%,0 100%)}
.hero-art svg{display:block;width:100%;height:auto}
.d{fill:none;stroke:var(--paper);stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.8s .2s ease forwards}
.d.late{animation-delay:1.1s}
.d.pv{stroke:var(--sun);fill:var(--sun);fill-opacity:0;animation:draw 1.1s 1.2s ease forwards,tint .8s 2.2s ease forwards}
.fade{opacity:0;animation:show .9s 1.7s ease forwards}
.callouts text{font-family:var(--head)}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes tint{to{fill-opacity:.4}}
@keyframes show{to{opacity:1}}

.facts{background:var(--concrete);border-block:1px solid var(--line)}
.facts-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.facts p{margin:0;padding:1.4rem 1.5rem;border-left:1px solid var(--line);font-size:.98rem;max-width:none;overflow-wrap:anywhere}
.facts p:first-child{border-left:0;padding-left:0}
.facts strong{display:block;font:600 1rem var(--head);color:var(--spruce);margin-bottom:.15rem}

/* Sections */
.section{padding-block:6rem}
.section-tint{background:var(--concrete)}
.reveal{transition:opacity .7s ease,transform .7s ease}
.js .reveal{opacity:0;transform:translateY(14px)}
.js .reveal.in{opacity:1;transform:none}

/* About */
.about-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:5rem;align-items:start}
.glance{background:var(--sage);padding:2rem 2.2rem;clip-path:polygon(0 0,calc(100% - 32px) 0,100% 32px,100% 100%,0 100%)}
.glance h3{margin-bottom:1rem}
.glance dl{margin:0}
.glance dl div{padding:.8rem 0;border-top:1px solid rgba(26,58,49,.25)}
.glance dt{font:600 .95rem var(--head);color:var(--spruce)}
.glance dd{margin:0;overflow-wrap:anywhere}
.principles{display:grid;grid-template-columns:repeat(3,1fr);margin-top:4.5rem;border-top:4px solid var(--spruce)}
.principles div{padding:1.8rem 2rem 0 0}
.principles div+div{padding-left:2rem;border-left:1px solid var(--line)}
.principles p{color:var(--steel)}

/* Services */
.services-grid{display:grid;grid-template-columns:.8fr 1.4fr;gap:5rem;align-items:start}
.services-intro{position:sticky;top:110px}
.service{display:grid;grid-template-columns:76px 1fr;gap:1.6rem;padding:2rem 1.2rem;border-top:1px solid var(--line);transition:background .25s}
.service:last-child{border-bottom:1px solid var(--line)}
.service:hover{background:var(--paper)}
.ico{display:grid;place-items:center;width:76px;height:76px;background:var(--spruce);clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);transition:background .25s}
.ico svg{width:38px;height:38px;fill:none;stroke:var(--paper);stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}
.service:hover .ico{background:var(--sun)}
.service:hover .ico svg{stroke:var(--spruce)}
.service h3{margin-bottom:.4rem}
.service p{margin-bottom:.6rem}
.service .items{color:var(--steel);font-size:.97rem;margin:0}

/* Benefits */
.dark{background:var(--spruce);color:#DCE5DF}
.dark h2,.dark h3{color:var(--paper)}
.benefits-head{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:end;margin-bottom:3.5rem}
.benefits-head p{margin:0;font-size:1.15rem}
.benefits{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:rgba(245,244,240,.22);border:1px solid rgba(245,244,240,.22)}
.b{background:var(--spruce);padding:2.2rem 2rem;transition:background .25s}
.b:hover{background:#21463b}
.b1,.b2{grid-column:span 3}.b3,.b4,.b5{grid-column:span 2}
.b1{border-top:4px solid var(--sun)}
.b1 h3{font-size:1.7rem}
.b p{margin:0}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:5rem;align-items:start}
.details{margin:2rem 0 0}
.details div{padding:1rem 0 1rem 1rem;border-left:4px solid var(--sun);margin-bottom:1rem;background:linear-gradient(90deg,var(--concrete),transparent)}
.details dt{font:600 .95rem var(--head);color:var(--spruce)}
.details dd{margin:0;overflow-wrap:anywhere}
.form{background:var(--concrete);padding:2.4rem;clip-path:polygon(0 0,calc(100% - 40px) 0,100% 40px,100% 100%,0 100%)}
.field{margin-bottom:1.2rem}
.field label{display:block;font:600 .95rem var(--head);color:var(--spruce);margin-bottom:.35rem}
input,select,textarea{width:100%;font:inherit;color:var(--ink);background:var(--paper);border:1px solid #9aa59f;border-radius:0;padding:.75rem .9rem}
input:focus,select:focus,textarea:focus{outline:3px solid var(--sun);outline-offset:0;border-color:var(--spruce)}
.field.invalid input,.field.invalid textarea{border-color:#a3321f}
.check{display:grid;grid-template-columns:22px 1fr;gap:.2rem .7rem}
.check input{width:20px;height:20px;margin-top:.2rem}
.check label{font:400 .95rem var(--body);color:var(--ink);margin:0}
.check .err{grid-column:2}
.err{color:#a3321f;font-size:.9rem;margin:.3rem 0 0}
.err:empty{display:none}
.status{margin:1rem 0 0;font-weight:600;color:var(--spruce)}

/* Footer */
.site-footer{background:var(--spruce);color:#C6D3CB;padding-top:4rem}
.site-footer a{text-decoration:none}
.site-footer a:hover{text-decoration:underline;text-underline-offset:4px}
.site-footer .brand-name,.site-footer h3{color:var(--paper)}
.site-footer .mark{background:var(--sun);color:var(--spruce)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:3rem;padding-bottom:3rem}
.foot-grid h3{font-size:1.05rem}
.foot-grid nav a{display:block;margin-bottom:.4rem}
.foot-grid address{font-style:normal}
.foot-grid p{margin-top:1rem;max-width:36ch}
.foot-base{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.6rem 2rem;padding-block:1.4rem;border-top:1px solid rgba(245,244,240,.2);font-size:.92rem}
.foot-base span+span a+a{margin-left:1.4rem}

/* Responsive */
@media (max-width:1020px){
  .hero-grid,.about-grid,.services-grid,.contact-grid,.benefits-head{grid-template-columns:1fr;gap:2.5rem}
  .services-intro{position:static}
  .facts-grid{grid-template-columns:1fr 1fr}
  .facts p:nth-child(3){border-left:0;padding-left:0}
  .facts p:nth-child(n+3){border-top:1px solid var(--line)}
  .b1,.b2{grid-column:span 3}.b3,.b4{grid-column:span 3}.b5{grid-column:span 6}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  body{font-size:1rem}
  .section{padding-block:4rem}
  .hero-grid{padding-block:2.5rem}
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;gap:1rem;padding:1.4rem 1.5rem 1.8rem;background:var(--paper);border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .brand-name{font-size:.95rem}
  .callouts{display:none}
  .principles{grid-template-columns:1fr}
  .principles div,.principles div+div{padding:1.4rem 0;border-left:0;border-top:1px solid var(--line)}
  .service{grid-template-columns:1fr;padding-inline:0}
  .benefits{grid-template-columns:1fr}
  .b1,.b2,.b3,.b4,.b5{grid-column:auto}
  .form{padding:1.6rem}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:480px){
  .facts-grid{grid-template-columns:1fr}
  .facts p,.facts p:nth-child(3){border-left:0;padding-left:0;border-top:1px solid var(--line)}
  .facts p:first-child{border-top:0}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .d,.d.pv,.fade{animation:none;stroke-dashoffset:0;opacity:1}
  .d.pv{fill-opacity:.4}
  .js .reveal{opacity:1;transform:none}
  *{transition:none!important}
}