:root {
  --ink: #0e2b25;
  --ink-2: #24443d;
  --muted: #63736f;
  --cream: #faf7f2;
  --paper: #faf7f2;
  --line: #d9ded8;
  --amber: #d4a017;
  --amber-dark: #b77b00;
  --white: #fff;
  --shadow: 0 24px 70px rgba(23, 49, 44, .12);
  --radius: 18px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; }

.skip-link {
  position: fixed; left: 16px; top: -80px; z-index: 100;
  padding: 12px 18px; background: var(--ink); color: white; border-radius: 8px;
}
.skip-link:focus { top: 16px; }
.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 253, 248, .93);
  border-bottom: 1px solid rgba(23, 49, 44, .08);
  backdrop-filter: blur(16px);
}
.header-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand img { width: 220px; height: auto; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { text-decoration: none; font-size: .95rem; font-weight: 700; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--amber-dark); }
.nav .nav-cta { padding: 11px 17px; color: white; background: var(--ink); border-radius: 999px; }
.language-link {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 10px;
  border: 1px solid var(--line); border-radius: 999px; background: white;
  color: var(--ink); white-space: nowrap;
}
.language-link img { width: 27px; height: 18px; border-radius: 2px; box-shadow: 0 0 0 1px rgba(0,0,0,.08); }
.language-link span { font-size: .8rem; font-weight: 800; }
.menu-toggle { display: none; border: 0; background: transparent; padding: 8px; color: var(--ink); }

.hero {
  min-height: 540px; display: grid; align-items: center;
  position: relative; overflow: hidden; isolation: isolate;
  background: #f4f1eb;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -2;
  background: linear-gradient(90deg, rgba(250,247,242,.98) 0%, rgba(250,247,242,.9) 36%, rgba(250,247,242,.55) 55%, rgba(250,247,242,.06) 78%), url("assets/hero-gs-bau.png") 68% center/cover no-repeat;
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(circle at 14% 82%, rgba(212,160,23,.18), transparent 28%);
}
.hero-content { max-width: 560px; padding: 86px 0 126px; color: var(--ink); }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 18px; color: var(--amber); font-size: .78rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 34px; height: 2px; background: currentColor; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; letter-spacing: -.035em; }
h1 { margin-bottom: 24px; font-size: clamp(3rem, 6.2vw, 5.15rem); }
h1 span { color: var(--amber-dark); }
h2 { margin-bottom: 22px; font-size: clamp(2rem, 3.4vw, 3.1rem); }
h3 { margin-bottom: 12px; font-size: 1.35rem; }
.hero p { max-width: 520px; margin: 0 0 30px; color: #263c37; font-size: clamp(1rem, 1.25vw, 1.1rem); }
.actions { display: flex; flex-wrap: wrap; gap: 14px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 0 22px; border: 1px solid transparent; border-radius: 999px;
  background: var(--amber); color: #1f2b28; font-weight: 800; text-decoration: none; cursor: pointer;
  transition: .2s ease;
}
.button:hover { transform: translateY(-2px); background: #e2ae23; }
.button.secondary { border-color: rgba(255,255,255,.38); color: white; background: rgba(255,255,255,.08); }
.button.dark { color: white; background: var(--ink); }
.button.outline { border-color: var(--ink); color: var(--ink); background: transparent; }
.button svg { width: 18px; }
.hero-proof { display: inline-flex; align-items: center; gap: 10px; color: #263c37; font-size: .94rem; font-weight: 700; }
.proof-icon { position: relative; display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid rgba(14,43,37,.28); border-radius: 999px; color: var(--ink); }
.proof-icon::before {
  content: ""; width: 15px; height: 18px; border: 2px solid currentColor; border-radius: 9px 9px 11px 11px;
  clip-path: polygon(50% 0, 100% 20%, 90% 78%, 50% 100%, 10% 78%, 0 20%);
}

.trustbar { position: relative; z-index: 4; margin-top: -72px; }
.trustgrid { display: grid; grid-template-columns: repeat(4, 1fr); background: linear-gradient(135deg, #05352f, #062a25); border-radius: 14px; box-shadow: 0 24px 70px rgba(5, 53, 47, .22); overflow: hidden; }
.trustitem { position: relative; display: grid; grid-template-columns: auto 1fr; column-gap: 15px; padding: 28px 26px; border-right: 1px solid rgba(255,255,255,.16); color: white; }
.trustitem:last-child { border: 0; }
.trustitem strong { grid-column: 2; display: block; margin-bottom: 4px; color: white; font-size: 1rem; }
.trustitem span:not(.trusticon) { grid-column: 2; color: rgba(255,255,255,.72); font-size: .82rem; line-height: 1.45; }
.trusticon { position: relative; grid-row: span 2; display: grid; place-items: center; width: 48px; height: 48px; border: 2px solid var(--amber); border-radius: 16px; color: var(--amber); line-height: 1; }
.trusticon::before, .trusticon::after { content: ""; position: absolute; box-sizing: border-box; }
.icon-team::before { width: 22px; height: 22px; border: 3px solid currentColor; border-radius: 50%; top: 10px; left: 13px; }
.icon-team::after { width: 34px; height: 16px; border: 3px solid currentColor; border-top: 0; border-radius: 0 0 18px 18px; left: 7px; bottom: 8px; }
.icon-calendar::before { width: 28px; height: 26px; border: 3px solid currentColor; border-radius: 5px; left: 10px; top: 12px; }
.icon-calendar::after { width: 28px; height: 3px; background: currentColor; left: 10px; top: 20px; box-shadow: 7px -8px 0 -1px currentColor, 19px -8px 0 -1px currentColor; }
.icon-quality::before { width: 25px; height: 15px; border-left: 4px solid currentColor; border-bottom: 4px solid currentColor; transform: rotate(-45deg); left: 12px; top: 14px; }
.icon-helmet::before { width: 30px; height: 18px; border: 3px solid currentColor; border-bottom: 0; border-radius: 18px 18px 0 0; left: 9px; top: 12px; }
.icon-helmet::after { width: 36px; height: 5px; border-radius: 999px; background: currentColor; left: 6px; bottom: 12px; }

.section { padding: 82px 0; }
.section.alt { background: var(--cream); }
.section.dark { background: var(--ink); color: white; }
.section-head { max-width: 760px; margin-bottom: 42px; }
.section-head.centered { margin-inline: auto; text-align: center; }
.section-head p, .lead { color: var(--muted); font-size: 1.08rem; }
.dark .section-head p, .dark .lead { color: rgba(255,255,255,.7); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

.service-grid { align-items: stretch; }
.service-card {
  min-height: 390px; padding: 0; border: 1px solid #eadfcf; border-radius: 14px;
  background: #fffaf1; overflow: hidden; transition: .25s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.service-image { height: 140px; background-size: cover; background-position: center; background-repeat: no-repeat; }
.image-01 { background-image: url("assets/service-rohbau.svg"); }
.image-02 { background-image: url("assets/service-sanierung.svg"); }
.image-03 { background-image: url("assets/service-innenausbau.svg"); }
.image-04 { background-image: url("assets/service-fassade.svg"); }
.image-05 { background-image: url("assets/service-aussenanlagen.svg"); }
.image-06 { background-image: url("assets/service-bauleitung.svg"); }
.service-body { padding: 24px 24px 22px; }
.service-title { display: flex; align-items: center; gap: 12px; margin-bottom: 13px; }
.service-title h3 { margin: 0; font-size: 1.12rem; letter-spacing: -.02em; }
.iconbox { display: grid; place-items: center; flex: 0 0 auto; width: 36px; height: 36px; border-radius: 999px; color: var(--amber-dark); background: #f8e0a6; font-size: 1rem; font-weight: 900; }
.service-card p { margin: 0 0 18px; color: #344b45; font-size: .94rem; }
.service-card a { color: var(--amber-dark); font-size: .9rem; font-weight: 800; text-decoration: none; }

.about-panel { position: relative; padding: 56px; border-radius: 28px; background: var(--ink); color: white; overflow: hidden; }
.about-panel::after { content: "30+"; position: absolute; right: -15px; bottom: -55px; color: rgba(255,255,255,.055); font-size: 12rem; line-height: 1; font-weight: 900; }
.about-panel p { color: rgba(255,255,255,.72); }
.checklist { display: grid; gap: 13px; padding: 0; list-style: none; }
.checklist li { display: flex; gap: 12px; }
.checklist li::before { content: "✓"; flex: 0 0 auto; color: var(--amber); font-weight: 900; }

.project-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 22px; }
.project {
  position: relative; min-height: 330px; grid-column: span 4; display: flex; align-items: flex-end;
  overflow: hidden; padding: 28px; border-radius: var(--radius); color: white;
  background: linear-gradient(155deg, #46655e, #172f2a);
}
.project:nth-child(2n) { background: linear-gradient(155deg, #c58c35, #5a3a15); }
.project.wide { grid-column: span 8; }
.project::before { content: ""; position: absolute; width: 220px; height: 220px; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; right: -80px; top: -80px; }
.project small { color: #f0c270; text-transform: uppercase; letter-spacing: .12em; font-weight: 800; }
.project h3 { margin: 6px 0 0; font-size: 1.6rem; }
.project-link { text-decoration: none; background-size: cover; background-position: center; }
.project-link span { display: inline-block; margin-top: 12px; color: rgba(255,255,255,.82); font-size: .88rem; font-weight: 800; }
.project.has-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0), rgba(0,0,0,.22)); pointer-events: none; }
.project.has-image > div { position: relative; z-index: 1; }

.region-list { display: flex; flex-wrap: wrap; gap: 10px; }
.region-list span { padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px; background: white; color: var(--ink-2); font-size: .9rem; }

.cta-band { padding: 42px 0; background: var(--amber); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.cta-inner h2 { margin: 0; font-size: clamp(1.8rem, 3vw, 3rem); }
.closing-banner { padding: 0 0 72px; }
.closing-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 28px;
  padding: 28px 32px; border: 1px solid #eadfcf; border-radius: 16px;
  background: linear-gradient(135deg, #fff8eb, #f6efe2);
}
.closing-copy { display: flex; align-items: center; gap: 22px; }
.closing-copy h2 { margin: 0 0 5px; font-size: clamp(1.5rem, 2.2vw, 2rem); }
.closing-copy p { margin: 0; color: #445650; }
.closing-icon { position: relative; display: grid; place-items: center; width: 58px; height: 58px; border-radius: 16px; background: var(--amber); color: white; box-shadow: 0 14px 30px rgba(212,160,23,.26); }
.closing-icon::before { content: ""; width: 25px; height: 30px; border: 3px solid currentColor; border-radius: 4px; }
.closing-icon::after { content: ""; position: absolute; width: 5px; height: 5px; left: 22px; top: 22px; background: currentColor; box-shadow: 10px 0 0 currentColor, 0 10px 0 currentColor, 10px 10px 0 currentColor; }

.page-hero { padding: 110px 0 82px; background: var(--ink); color: white; }
.page-hero p { max-width: 720px; color: rgba(255,255,255,.72); font-size: 1.1rem; }
.reference-hero {
  min-height: 520px; display: grid; align-items: end; padding: 110px 0 88px;
  color: white; background-size: cover; background-position: center;
}
.reference-hero h1 { max-width: 820px; }
.reference-hero p { max-width: 720px; color: rgba(255,255,255,.78); font-size: 1.12rem; }
.reference-layout { display: grid; grid-template-columns: 320px 1fr; gap: 72px; align-items: start; }
.reference-facts { display: grid; gap: 0; border: 1px solid #eadfcf; border-radius: 14px; background: #fffaf1; overflow: hidden; }
.reference-facts div { padding: 20px 22px; border-bottom: 1px solid #eadfcf; }
.reference-facts div:last-child { border-bottom: 0; }
.reference-facts span { display: block; color: var(--muted); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.reference-facts strong { display: block; margin-top: 4px; color: var(--ink); line-height: 1.35; }
.reference-copy h2:first-child { margin-top: 0; }
.reference-list { margin-top: 18px; }
.reference-gallery { padding: 0 0 82px; }
.gallery-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; align-items: stretch; }
.gallery-grid img { width: 100%; height: 100%; min-height: 300px; object-fit: cover; border-radius: 14px; }
.content-narrow { width: min(calc(100% - 40px), 820px); margin-inline: auto; }
.prose h2 { margin-top: 56px; font-size: 2rem; }
.prose h3 { margin-top: 34px; }
.prose p, .prose li { color: #445650; }
.notice { padding: 18px 20px; border-left: 4px solid var(--amber); border-radius: 6px; background: #fff3dc; color: #5a4016; }
.placeholder { padding: 2px 6px; border-radius: 4px; background: #fff0c7; color: #6a450a; font-weight: 700; }

.contact-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; align-items: start; }
.contact-card { padding: 34px; border-radius: var(--radius); background: var(--cream); }
.contact-list { display: grid; gap: 22px; margin-top: 30px; }
.contact-list div { padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.contact-list strong, .contact-list span { display: block; }
.contact-list span { color: var(--muted); }
.form { display: grid; gap: 20px; }
.field { display: grid; gap: 7px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field label { font-weight: 700; font-size: .92rem; }
.field input, .field textarea, .field select {
  width: 100%; padding: 14px 15px; border: 1px solid #bac5c1; border-radius: 10px; background: white; color: var(--ink);
}
.field textarea { min-height: 170px; resize: vertical; }
.consent { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: .88rem; }
.consent input { margin-top: 5px; }
.form-status { min-height: 24px; font-weight: 700; }

.site-footer { padding: 72px 0 26px; background: #10241f; color: white; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 70px; padding-bottom: 48px; }
.footer-brand img { width: 210px; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 390px; color: rgba(255,255,255,.6); }
.footer-nav { display: grid; align-content: start; gap: 10px; }
.footer-nav h3 { font-size: 1rem; }
.footer-nav a { width: fit-content; color: rgba(255,255,255,.67); text-decoration: none; }
.footer-nav a:hover { color: var(--amber); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.5); font-size: .85rem; }
.whatsapp-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 80;
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 58px; padding: 10px 17px 10px 10px;
  border-radius: 999px; color: white; background: #25D366;
  font-weight: 800; text-decoration: none; box-shadow: 0 18px 42px rgba(18, 140, 126, .28);
  transition: transform .2s ease, box-shadow .2s ease;
}
.whatsapp-float:hover { transform: translateY(-3px); box-shadow: 0 22px 52px rgba(18, 140, 126, .36); }
.whatsapp-float img { width: 38px; height: 38px; }
.whatsapp-float span { line-height: 1; }

@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .nav {
    display: none; position: absolute; left: 20px; right: 20px; top: 72px; padding: 22px;
    flex-direction: column; align-items: stretch; gap: 16px; background: white; border-radius: 16px; box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  .language-link { width: fit-content; }
  .grid-2, .contact-layout, .footer-grid { grid-template-columns: 1fr; gap: 38px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .trustgrid { grid-template-columns: repeat(2, 1fr); }
  .trustitem:nth-child(2) { border-right: 0; }
  .trustitem:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.16); }
  .project, .project.wide { grid-column: span 6; }
  .reference-layout { grid-template-columns: 1fr; gap: 38px; }
  .reference-facts { max-width: 520px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .closing-inner { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 640px) {
  .container, .content-narrow { width: min(calc(100% - 28px), var(--max)); }
  .brand img { width: 180px; }
  .hero { min-height: 620px; }
  .hero::before { background: linear-gradient(180deg, rgba(250,247,242,.99) 0%, rgba(250,247,242,.88) 54%, rgba(250,247,242,.42) 100%), url("assets/hero-gs-bau.png") 67% center/cover; }
  .hero-content { min-width: 0; padding: 72px 0 120px; }
  h1 { max-width: 100%; font-size: clamp(2.55rem, 12.5vw, 3.4rem); overflow-wrap: anywhere; }
  .hero p { max-width: 100%; font-size: 1rem; overflow-wrap: anywhere; }
  .hero .actions { display: grid; width: min(100%, 330px); }
  .hero .button { width: 100%; }
  .trustgrid, .grid-3, .field-row { grid-template-columns: 1fr; }
  .trustitem { padding: 21px 24px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.16); }
  .section { padding: 78px 0; }
  .about-panel { padding: 34px 25px; }
  .project, .project.wide { grid-column: span 12; min-height: 270px; }
  .reference-hero { min-height: 500px; padding: 86px 0 70px; }
  .reference-hero h1 { font-size: clamp(2.55rem, 12.5vw, 3.4rem); overflow-wrap: anywhere; }
  .gallery-grid img { min-height: 230px; }
  .cta-inner, .footer-bottom { align-items: flex-start; flex-direction: column; }
  .closing-banner { padding-bottom: 54px; }
  .closing-inner { padding: 24px; }
  .closing-copy { align-items: flex-start; flex-direction: column; gap: 16px; }
  .whatsapp-float { right: 14px; bottom: 14px; min-height: 54px; padding-right: 14px; }
  .whatsapp-float img { width: 34px; height: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}