/* GHR Luft- und Klimatechnik. Helle Industrie-Seite: weißer Kopf fürs Logo, Eisblau-Bänder trennen Abschnitte, Rot nur für die Hauptaktion. Bewusst nur helles Theme. */
:root{
  color-scheme: light;
  --red:#D7262B; --red-dark:#B01E22;
  --blue:#1E9BE0; --blue-ink:#0B5E8E;
  --ink:#121B24; --muted:#4A5866;
  --ice:#EEF5FA; --line:#D3E2EC; --white:#FFFFFF;
  --f-display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --f-body:"Source Sans 3","Segoe UI",Roboto,Arial,sans-serif;
  --f-mono:"IBM Plex Mono",Consolas,"Courier New",monospace;
  --wrap:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.6}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--white)}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{overflow-wrap:break-word;hyphens:auto;font-family:var(--f-display);font-weight:600;line-height:1.05;text-wrap:balance;margin:0}
h2{font-size:clamp(2rem,4vw,2.8rem)}
h3{font-size:1.45rem;font-weight:600}
p{margin:0}
.eyebrow{font-family:var(--f-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--blue-ink)}

/* Top bar */
.topbar{background:var(--ink);color:#DCE7EF;font-size:.88rem}
.topbar .wrap{display:flex;flex-wrap:wrap;gap:6px 24px;justify-content:space-between;padding-block:7px}
.topbar a{text-decoration:none}
.topbar a:hover{color:#fff}
.topbar .items{display:flex;flex-wrap:wrap;gap:6px 20px}

/* Header */
header.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--white);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;gap:20px;padding-block:10px;position:relative}
.logo img{height:64px;width:auto}
nav.main{margin-left:auto;display:flex;gap:2px}
nav.main a{font-family:var(--f-display);font-size:1.15rem;font-weight:500;text-decoration:none;padding:8px 11px;border-radius:4px;color:var(--ink)}
nav.main a:hover{background:var(--ice);color:var(--blue-ink)}
nav.main a[aria-current="page"]{color:var(--blue-ink);box-shadow:inset 0 -3px 0 var(--blue)}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-display);font-size:1.15rem;font-weight:600;letter-spacing:.02em;text-decoration:none;padding:12px 22px;border-radius:4px;border:2px solid transparent;cursor:pointer;line-height:1.1}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-dark)}
.btn-line{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-line:hover{background:var(--ink);color:#fff}
.btn svg{width:18px;height:18px;flex:none}
.menu{display:none;margin-left:auto}
.menu summary{list-style:none;cursor:pointer;font-family:var(--f-display);font-size:1.15rem;font-weight:600;padding:8px 14px;border:2px solid var(--ink);border-radius:4px}
.menu summary::-webkit-details-marker{display:none}
.menu nav{position:absolute;left:0;right:0;top:100%;background:var(--white);border-bottom:1px solid var(--line);display:grid;padding:8px max(16px,env(safe-area-inset-right,0px)) 16px max(16px,env(safe-area-inset-left,0px))}
.menu nav a{font-family:var(--f-display);font-size:1.3rem;text-decoration:none;padding:10px 0;border-bottom:1px solid var(--line)}
.menu nav a[aria-current="page"]{color:var(--blue-ink)}
@media (max-width:1100px){nav.main,.head-cta{display:none}.menu{display:block}.logo img{height:52px}}

/* Hero (Startseite) */
.hero{position:relative;background:var(--ice);overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:48px;align-items:center;padding-block:64px 72px}
.hero h1{font-size:clamp(2.6rem,6vw,4.6rem);font-weight:700;font-style:italic;letter-spacing:-.01em}
.hero h1 .r{color:var(--red)}
.hero .sub{margin-top:16px;font-size:1.25rem;color:var(--blue-ink);max-width:34ch}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero .photo{position:relative}
.hero .photo img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px}
.readout{position:absolute;left:-28px;bottom:-26px;background:var(--white);border:1px solid var(--line);border-radius:4px;display:grid;grid-template-columns:repeat(3,auto);font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.readout div{padding:12px 18px;border-right:1px solid var(--line)}
.readout div:last-child{border-right:0}
.readout b{display:block;font-size:1.35rem;font-weight:500;color:var(--ink)}
.readout span{font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.readout .t b{color:var(--red)} .readout .h b{color:var(--blue-ink)}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr;gap:36px;padding-block:40px 64px}.readout{left:12px;right:12px;bottom:-30px}.readout div{padding:10px 12px}.readout b{font-size:1.1rem}}

/* Seitenkopf (Unterseiten) */
.pagehead{background:var(--ice);border-bottom:1px solid var(--line)}
.pagehead .wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:48px;align-items:center;padding-block:40px 56px}
.pagehead.text .wrap{grid-template-columns:minmax(0,1fr)}
.pagehead h1{font-size:clamp(2.4rem,5vw,3.8rem);font-weight:700;margin-top:12px}
.pagehead .lead{margin-top:16px;font-size:1.2rem;color:var(--blue-ink);max-width:46ch}
.pagehead .photo img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px}
.pagehead .tile{aspect-ratio:4/3;border-radius:4px;background:var(--white);border:1px solid var(--line);display:grid;place-items:center;color:var(--blue)}
.pagehead .tile svg{width:38%;height:auto}
.crumbs{font-size:.92rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--blue-ink)}
@media (max-width:860px){.pagehead .wrap{grid-template-columns:1fr;gap:28px;padding-block:28px 44px}.pagehead .tile{display:none}}

/* Facts strip */
.facts{border-bottom:1px solid var(--line)}
.facts .wrap{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding-block:44px 34px;gap:24px}
.fact b{display:block;font-family:var(--f-display);font-size:2.4rem;font-weight:700;line-height:1;color:var(--ink)}
.fact span{color:var(--muted);font-size:.98rem}
@media (max-width:760px){.facts .wrap{grid-template-columns:repeat(2,minmax(0,1fr));padding-top:60px}}

/* Sections */
section.block{padding-block:84px}
section.block.tight{padding-block:64px}
.bg-ice{background:var(--ice)}
.head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:16px 40px;margin-bottom:40px}
.head p{max-width:52ch;color:var(--muted)}
.head .eyebrow{margin-bottom:10px}

/* Fliesstext + Seitenspalte */
.cols{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:56px;align-items:start}
@media (max-width:900px){.cols{grid-template-columns:1fr;gap:40px}}
.prose{max-width:66ch}
.prose > * + *{margin-top:16px}
.prose h2{font-size:clamp(1.7rem,3vw,2.2rem);margin-top:40px}
.prose h2:first-child{margin-top:0}
.prose ul{padding-left:0;list-style:none;display:grid;gap:10px}
.prose ul li{position:relative;padding-left:26px}
.prose ul li::before{content:"";position:absolute;left:4px;top:.62em;width:10px;height:2px;background:var(--blue)}
.prose a{color:var(--blue-ink)}
.aside{display:grid;gap:20px}
.box{border:1px solid var(--line);border-radius:4px;padding:24px;background:var(--white)}
.box.ice{background:var(--ice)}
.box h3{font-size:1.35rem;margin-bottom:10px}
.box p{color:var(--muted);font-size:1rem}
.box .btn{margin-top:18px}
.box ul{list-style:none;padding:0;margin:0;display:grid}
.box li{padding:10px 0;border-bottom:1px solid var(--line);font-size:1rem}
.box li:last-child{border-bottom:0}
.box li b{display:block;font-weight:600}
.box li span{color:var(--muted)}

/* Tag-Liste */
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags span{font-size:.95rem;padding:6px 12px;border:1px solid var(--line);border-radius:4px;background:var(--white)}

/* Leistungen */
.services{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.svc{background:var(--white);padding:30px 28px 28px;display:flex;flex-direction:column;gap:12px;text-decoration:none;transition:background .15s}
.svc:hover{background:var(--ice)}
.svc .ico{width:46px;height:46px;color:var(--blue)}
.svc p{color:var(--muted);font-size:1rem}
.svc .more{margin-top:auto;padding-top:6px;font-family:var(--f-display);font-weight:600;font-size:1.05rem;color:var(--red)}
.svc[aria-current="page"]{background:var(--ice)}
@media (max-width:900px){.services{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.services{grid-template-columns:1fr}}

/* Kernkompetenz (dunkel) */
.core{background:var(--ink);color:#E4EDF3}
.core .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;padding-block:84px}
.core h2{color:#fff}
.core .eyebrow{color:#7CC8F0}
.core p{margin-top:18px;color:#BFD0DC;max-width:48ch}
.core ul{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:12px}
.core li{display:flex;gap:12px;align-items:flex-start}
.core li svg{flex:none;width:22px;height:22px;color:#7CC8F0;margin-top:3px}
.core img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px}
.core .btn-line{border-color:#fff;color:#fff}
.core .btn-line:hover{background:#fff;color:var(--ink)}
@media (max-width:860px){.core .wrap{grid-template-columns:1fr;gap:36px;padding-block:64px}}

/* Wartung */
.maint-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:48px;align-items:start}
.maint-grid > div:first-child p{color:var(--muted);margin-top:16px;max-width:52ch}
.checklist{background:var(--white);border:1px solid var(--line);border-radius:4px}
.checklist .row{display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;padding:16px 20px;border-bottom:1px solid var(--line)}
.checklist .row:last-child{border-bottom:0}
.checklist .n{font-family:var(--f-mono);font-size:.85rem;color:var(--blue-ink);padding-top:3px}
.checklist b{display:block;font-weight:600}
.checklist span{color:var(--muted);font-size:.97rem}
@media (max-width:860px){.maint-grid{grid-template-columns:1fr}}

/* Galerie */
.gallery{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.gallery figure{margin:0;position:relative;overflow:hidden;border-radius:4px;background:var(--ice)}
.gallery img{width:100%;aspect-ratio:1/1;object-fit:cover;transition:transform .4s}
.gallery figure:hover img{transform:scale(1.04)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:28px 12px 10px;background:linear-gradient(transparent,rgba(10,18,26,.82));color:#fff;font-size:.92rem;line-height:1.3}
.gallery .wide{grid-column:span 2}
.gallery .wide img{aspect-ratio:2/1}
@media (max-width:860px){.gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* Referenzliste */
.reflist{border-top:1px solid var(--line)}
.ref{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:8px 40px;padding:22px 0;border-bottom:1px solid var(--line)}
.ref b{font-family:var(--f-display);font-size:1.4rem;font-weight:600;line-height:1.15;display:block}
.ref .place{font-family:var(--f-mono);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--blue-ink)}
.ref p{color:var(--muted)}
@media (max-width:700px){.ref{grid-template-columns:1fr}}

/* Downloads */
.dl-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
@media (max-width:800px){.dl-groups{grid-template-columns:1fr}}
.dl{display:flex;align-items:center;gap:14px;padding:13px 0;border-bottom:1px solid var(--line);text-decoration:none}
.dl:last-child{border-bottom:0}
.dl:hover .t{color:var(--blue-ink);text-decoration:underline}
.dl .badge{flex:none;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;color:var(--red);border:1.5px solid var(--red);border-radius:3px;padding:2px 6px}
.dl .t{font-weight:600;line-height:1.3}
.dl .s{display:block;font-weight:400;color:var(--muted);font-size:.93rem}

/* Platzhalter-Hinweis */
.todo{background:#FFF6D9;border:1px solid #E9C866;color:#5A4300;border-radius:4px;padding:14px 16px;font-size:.97rem}
.todo b{font-weight:700}
.ph{background:#FFF0B8;color:#5A4300;padding:0 4px;border-radius:3px}

/* Kontakt */
.contact .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:56px}
.cinfo{display:grid;gap:22px;margin-top:26px}
.cinfo .k{font-family:var(--f-mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.cinfo .v{font-size:1.2rem;font-weight:600}
.cinfo .v a{text-decoration:none}
.cinfo .v a:hover{color:var(--blue-ink)}
.cinfo .v small{display:block;font-size:.95rem;font-weight:400;margin-top:4px}
.cinfo .v small a{color:var(--blue-ink);text-decoration:underline}
.hours{font-variant-numeric:tabular-nums;border-collapse:collapse;margin-top:4px}
.hours td{padding:3px 18px 3px 0;font-size:1.02rem}
form.req{background:var(--ice);border:1px solid var(--line);border-radius:4px;padding:28px;display:grid;gap:16px}
form.req .two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}
form.req label{display:grid;gap:6px;font-weight:600;font-size:.95rem}
form.req input,form.req select,form.req textarea{font:inherit;font-weight:400;padding:11px 12px;border:1px solid #B9CCDA;border-radius:4px;background:var(--white);color:var(--ink);width:100%}
form.req textarea{min-height:120px;resize:vertical}
.note{font-size:.9rem;color:var(--muted)}
.ok{background:var(--white);border-left:4px solid var(--blue);padding:12px 14px;font-size:.95rem}
@media (max-width:860px){.contact .wrap{grid-template-columns:1fr;gap:40px}}
@media (max-width:520px){form.req .two{grid-template-columns:1fr}form.req{padding:20px}}

/* CTA-Band */
.cta-band{background:var(--ice);border-top:1px solid var(--line)}
.cta-band .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px 40px;padding-block:44px}
.cta-band h2{font-size:clamp(1.7rem,3vw,2.3rem)}
.cta-band p{color:var(--muted);margin-top:6px}

/* Footer */
footer{background:var(--ink);color:#A9BBC8;font-size:.95rem}
footer .grid{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(3,minmax(0,1fr));gap:32px;padding-block:48px 32px}
footer h4{font-family:var(--f-display);font-size:1.15rem;font-weight:600;color:#fff;margin:0 0 10px}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
footer a{text-decoration:none;color:#DCE7EF}
footer a:hover{color:#fff;text-decoration:underline}
footer .bottom{border-top:1px solid #26333F}
footer .bottom .wrap{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;padding-block:16px;font-size:.88rem}
@media (max-width:860px){footer .grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:480px){footer .grid{grid-template-columns:1fr}}
.stripe{height:4px;background:linear-gradient(90deg,var(--red) 0 50%,var(--blue) 50% 100%)}