/* Tara Haustechnik GmbH - Redesign Studie von digital M.
   Design: Technical Precision / Clean Industrial
   Steel Grey + Signal Orange + Arctic White
*/

:root{
  --steel-900:#0A0E14;
  --steel-800:#1A2028;
  --steel-700:#2A323D;
  --steel-600:#3A4550;
  --steel-500:#525E6B;
  --steel-400:#8892A0;
  --steel-300:#B8C0CC;
  --steel-200:#D8DDE4;
  --steel-100:#EEF1F5;
  --white:#F8F9FA;
  --pure-white:#FFFFFF;
  --orange:#FF6B35;
  --orange-dark:#E8521C;
  --orange-soft:#FFEDE4;
  --success:#2BB673;
  --border:rgba(58,69,80,0.12);
  --shadow-sm:0 1px 2px rgba(10,14,20,.04);
  --shadow-md:0 4px 18px rgba(10,14,20,.08);
  --shadow-lg:0 20px 60px rgba(10,14,20,.14);
  --container:1240px;
  --radius:2px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Space Grotesk',-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--steel-800);
  background:var(--white);
  line-height:1.55;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}

/* ---------- Demo Banner ---------- */
.demo-banner{
  background:var(--steel-900);
  color:var(--white);
  font-family:'JetBrains Mono',ui-monospace,Menlo,monospace;
  font-size:12px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  padding:10px 24px;
  text-align:center;
  border-bottom:1px solid var(--orange);
}
.demo-banner strong{color:var(--orange);font-weight:600}

/* ---------- Navigation ---------- */
.nav{
  background:var(--pure-white);
  border-bottom:1px solid var(--border);
  position:sticky;
  top:0;
  z-index:100;
}
.nav-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:18px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.logo{
  display:flex;
  align-items:center;
  gap:12px;
  font-weight:600;
  font-size:18px;
  letter-spacing:-0.02em;
  color:var(--steel-900);
}
.logo-mark{
  width:38px;
  height:38px;
  background:var(--steel-900);
  color:var(--orange);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:'JetBrains Mono',monospace;
  font-weight:700;
  font-size:14px;
  border-radius:var(--radius);
  position:relative;
}
.logo-mark::after{
  content:"";
  position:absolute;
  inset:4px;
  border:1px solid var(--orange);
  opacity:.3;
  border-radius:1px;
}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text small{
  font-family:'JetBrains Mono',monospace;
  font-size:10px;
  color:var(--steel-400);
  text-transform:uppercase;
  letter-spacing:0.1em;
  font-weight:400;
}
.nav-links{
  display:flex;
  gap:4px;
  list-style:none;
  align-items:center;
}
.nav-links a{
  padding:10px 14px;
  font-size:14px;
  font-weight:500;
  color:var(--steel-600);
  transition:color .15s;
  position:relative;
}
.nav-links a:hover,.nav-links a.active{color:var(--steel-900)}
.nav-links a.active::before{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:4px;
  height:2px;
  background:var(--orange);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 20px;
  background:var(--orange);
  color:var(--pure-white);
  font-weight:600;
  font-size:14px;
  border-radius:var(--radius);
  transition:background .15s, transform .15s;
}
.nav-cta:hover{background:var(--orange-dark);transform:translateY(-1px)}
.nav-cta .dot{
  width:6px;
  height:6px;
  background:var(--pure-white);
  border-radius:50%;
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.6;transform:scale(1.3)}
}
.menu-toggle{display:none;font-size:22px;color:var(--steel-800)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 26px;
  font-weight:600;
  font-size:14px;
  letter-spacing:0.01em;
  border-radius:var(--radius);
  transition:all .15s;
  border:1px solid transparent;
}
.btn-primary{background:var(--orange);color:var(--pure-white)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-1px)}
.btn-outline{
  background:transparent;
  color:var(--steel-900);
  border-color:var(--steel-300);
}
.btn-outline:hover{border-color:var(--steel-900);background:var(--steel-900);color:var(--white)}
.btn-dark{background:var(--steel-900);color:var(--white)}
.btn-dark:hover{background:var(--steel-700)}
.btn-arrow::after{content:"\2192";font-size:16px;transition:transform .15s}
.btn-arrow:hover::after{transform:translateX(3px)}

/* ---------- Layout ---------- */
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
section{padding:96px 0}
.section-tight{padding:64px 0}

.eyebrow{
  font-family:'JetBrains Mono',monospace;
  font-size:12px;
  color:var(--orange);
  text-transform:uppercase;
  letter-spacing:0.18em;
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:20px;
}
.eyebrow::before{
  content:"";
  width:24px;
  height:1px;
  background:var(--orange);
}

h1,h2,h3,h4{
  font-family:'Space Grotesk',sans-serif;
  color:var(--steel-900);
  letter-spacing:-0.02em;
  font-weight:600;
  line-height:1.1;
}
h1{font-size:clamp(2.4rem,5.2vw,4.2rem);font-weight:600}
h2{font-size:clamp(1.9rem,3.6vw,2.9rem)}
h3{font-size:1.25rem;font-weight:600}
p{color:var(--steel-600);max-width:68ch}
.lead{font-size:1.1rem;color:var(--steel-500);line-height:1.65;max-width:58ch}

/* ---------- Hero ---------- */
.hero{
  background:var(--white);
  padding:80px 0 40px;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(var(--border) 1px,transparent 1px),
    linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:80px 80px;
  mask-image:radial-gradient(ellipse at top right,#000 0%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at top right,#000 0%,transparent 70%);
  pointer-events:none;
}
.hero-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  display:grid;
  grid-template-columns:1.15fr 1fr;
  gap:80px;
  align-items:center;
  position:relative;
  z-index:1;
}
.hero h1 span{color:var(--orange)}
.hero p.lead{margin-top:24px}
.hero-meta{
  display:flex;
  gap:0;
  margin-top:48px;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.hero-meta div{
  flex:1;
  padding:20px 20px 20px 0;
  border-right:1px solid var(--border);
}
.hero-meta div:last-child{border-right:0;padding-left:20px}
.hero-meta strong{
  display:block;
  font-family:'JetBrains Mono',monospace;
  font-size:24px;
  color:var(--steel-900);
  font-weight:600;
  line-height:1;
}
.hero-meta small{
  display:block;
  font-size:11px;
  color:var(--steel-400);
  text-transform:uppercase;
  letter-spacing:0.08em;
  margin-top:6px;
  font-family:'JetBrains Mono',monospace;
}
.hero-ctas{display:flex;gap:12px;margin-top:36px;flex-wrap:wrap}

.hero-visual{position:relative}
.hero-img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
  border-radius:var(--radius);
  filter:grayscale(20%) contrast(1.05);
}
.hero-badge{
  position:absolute;
  left:-20px;
  bottom:30px;
  background:var(--steel-900);
  color:var(--white);
  padding:20px 24px;
  border-left:4px solid var(--orange);
  max-width:260px;
  box-shadow:var(--shadow-lg);
}
.hero-badge small{
  font-family:'JetBrains Mono',monospace;
  font-size:10px;
  color:var(--orange);
  text-transform:uppercase;
  letter-spacing:0.1em;
}
.hero-badge strong{
  display:block;
  font-size:16px;
  margin-top:6px;
  font-weight:500;
}
.hero-tag{
  position:absolute;
  top:24px;
  right:-10px;
  background:var(--orange);
  color:var(--pure-white);
  font-family:'JetBrains Mono',monospace;
  font-size:11px;
  padding:10px 16px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  font-weight:500;
  writing-mode:vertical-rl;
}

/* ---------- Services grid ---------- */
.services{background:var(--pure-white);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.services-head{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
  margin-bottom:60px;
  align-items:end;
}
.services-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  border-top:1px solid var(--border);
  border-left:1px solid var(--border);
}
.service-card{
  padding:40px 36px;
  background:var(--pure-white);
  border-right:1px solid var(--border);
  border-bottom:1px solid var(--border);
  transition:background .2s;
  position:relative;
}
.service-card:hover{background:var(--steel-100)}
.service-num{
  font-family:'JetBrains Mono',monospace;
  font-size:11px;
  color:var(--steel-400);
  letter-spacing:0.1em;
}
.service-icon{
  width:44px;
  height:44px;
  margin:22px 0 28px;
  color:var(--orange);
}
.service-card h3{margin-bottom:12px;font-size:1.3rem}
.service-card p{font-size:14.5px;line-height:1.6}
.service-card .arrow{
  position:absolute;
  right:36px;
  bottom:40px;
  font-size:18px;
  color:var(--steel-300);
  transition:all .2s;
}
.service-card:hover .arrow{color:var(--orange);transform:translate(3px,-3px)}

/* ---------- Emergency Band ---------- */
.emergency{
  background:var(--steel-900);
  color:var(--white);
  padding:60px 0;
  position:relative;
  overflow:hidden;
}
.emergency::before{
  content:"24/7 24/7 24/7 24/7 24/7 24/7 24/7 24/7";
  position:absolute;
  top:50%;
  left:0;
  right:0;
  transform:translateY(-50%);
  font-family:'JetBrains Mono',monospace;
  font-size:120px;
  font-weight:700;
  color:var(--steel-800);
  white-space:nowrap;
  letter-spacing:0.1em;
  pointer-events:none;
}
.emergency-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  position:relative;
  z-index:1;
}
.emergency h2{color:var(--white);font-size:2.4rem;max-width:600px}
.emergency h2 span{color:var(--orange)}
.emergency-phone{
  display:flex;
  align-items:center;
  gap:18px;
  padding:20px 28px;
  border:2px solid var(--orange);
  background:rgba(255,107,53,0.08);
  transition:background .2s;
}
.emergency-phone:hover{background:var(--orange);color:var(--steel-900)}
.emergency-phone strong{
  font-family:'JetBrains Mono',monospace;
  font-size:22px;
  font-weight:600;
  letter-spacing:0.02em;
}
.emergency-phone small{
  display:block;
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:0.12em;
  color:var(--orange);
  margin-bottom:2px;
}
.emergency-phone:hover small{color:var(--steel-900)}

/* ---------- Content / About blocks ---------- */
.about-split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
  align-items:center;
}
.about-split img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
  filter:grayscale(15%) contrast(1.05);
}
.about-split p{margin-top:20px}
.about-split p + p{margin-top:16px}
.stat-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  margin-top:40px;
  border-top:1px solid var(--border);
}
.stat-row div{
  padding:20px 20px 0 0;
  border-right:1px solid var(--border);
}
.stat-row div:last-child{border-right:0;padding-left:20px}
.stat-row strong{
  display:block;
  font-family:'JetBrains Mono',monospace;
  font-size:32px;
  color:var(--steel-900);
  font-weight:600;
}
.stat-row small{
  font-size:12px;
  color:var(--steel-400);
  text-transform:uppercase;
  letter-spacing:0.06em;
}

/* ---------- Process timeline ---------- */
.process{background:var(--white);border-top:1px solid var(--border)}
.process-head{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
  align-items:end;
  margin-bottom:64px;
}
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--border);
}
.process-step{
  background:var(--white);
  padding:36px 28px;
  position:relative;
}
.process-step .num{
  font-family:'JetBrains Mono',monospace;
  font-size:12px;
  color:var(--orange);
  letter-spacing:0.1em;
}
.process-step h3{margin:28px 0 10px;font-size:1.15rem}
.process-step p{font-size:14px;line-height:1.55}
.process-step::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:40px;
  height:2px;
  background:var(--orange);
}

/* ---------- Feature list / check rows ---------- */
.check-list{list-style:none;padding:0;margin-top:24px}
.check-list li{
  padding:14px 0;
  border-bottom:1px solid var(--border);
  display:flex;
  align-items:flex-start;
  gap:14px;
  font-size:15px;
  color:var(--steel-700);
}
.check-list li::before{
  content:"\f00c";
  font-family:'Font Awesome 6 Free';
  font-weight:900;
  color:var(--orange);
  font-size:12px;
  margin-top:3px;
  flex-shrink:0;
}

/* ---------- Service page ---------- */
.page-hero{
  padding:90px 0 70px;
  background:var(--pure-white);
  border-bottom:1px solid var(--border);
  position:relative;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:linear-gradient(to bottom,#000 0%,transparent 100%);
  -webkit-mask-image:linear-gradient(to bottom,#000 0%,transparent 100%);
  opacity:.5;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{
  font-family:'JetBrains Mono',monospace;
  font-size:12px;
  color:var(--steel-400);
  letter-spacing:0.05em;
  margin-bottom:32px;
  text-transform:uppercase;
}
.breadcrumb a{color:var(--steel-400)}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb span{color:var(--steel-900)}
.page-hero h1{max-width:18ch;margin-bottom:24px}
.page-hero .lead{max-width:64ch;font-size:1.15rem}

/* ---------- Two-col content ---------- */
.two-col{
  display:grid;
  grid-template-columns:1fr 1.2fr;
  gap:80px;
  align-items:flex-start;
}
.two-col img{width:100%;aspect-ratio:4/5;object-fit:cover;filter:grayscale(20%)}
.content-block h2{margin-bottom:20px}
.content-block p + p{margin-top:16px}
.content-block h3{margin-top:32px;margin-bottom:12px}

/* ---------- Specs grid ---------- */
.specs{background:var(--pure-white);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.specs-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid var(--border);
  border-left:1px solid var(--border);
}
.spec{
  padding:36px 28px;
  border-right:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.spec-num{
  font-family:'JetBrains Mono',monospace;
  font-size:11px;
  color:var(--orange);
  letter-spacing:0.1em;
  margin-bottom:14px;
}
.spec h4{font-size:16px;font-weight:600;margin-bottom:8px;color:var(--steel-900)}
.spec p{font-size:13.5px;color:var(--steel-500)}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--steel-900);
  color:var(--white);
  padding:100px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:60px 60px;
}
.cta-inner{max-width:760px;margin:0 auto;padding:0 24px;text-align:center;position:relative;z-index:1}
.cta-inner .eyebrow{color:var(--orange);justify-content:center}
.cta-inner h2{color:var(--white);font-size:clamp(2rem,4vw,3rem);margin-bottom:20px}
.cta-inner p{color:var(--steel-300);margin:0 auto 32px;max-width:48ch}
.cta-inner .btn-outline{color:var(--white);border-color:var(--steel-600)}
.cta-inner .btn-outline:hover{background:var(--white);color:var(--steel-900)}

/* ---------- Projects / references ---------- */
.project-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:32px;
}
.project{
  background:var(--pure-white);
  border:1px solid var(--border);
  overflow:hidden;
  transition:transform .2s,box-shadow .2s;
}
.project:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.project img{width:100%;aspect-ratio:16/10;object-fit:cover;filter:grayscale(15%)}
.project-body{padding:28px 32px 32px}
.project-body .tag{
  display:inline-block;
  font-family:'JetBrains Mono',monospace;
  font-size:11px;
  color:var(--orange);
  letter-spacing:0.08em;
  margin-bottom:10px;
  text-transform:uppercase;
}
.project-body h3{font-size:1.2rem;margin-bottom:8px}
.project-body p{font-size:14px;color:var(--steel-500)}

/* ---------- Contact page ---------- */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
}
.contact-info{
  background:var(--pure-white);
  border:1px solid var(--border);
  padding:48px 44px;
}
.contact-info h3{margin-bottom:28px}
.contact-row{
  padding:18px 0;
  border-top:1px solid var(--border);
  display:flex;
  gap:18px;
  align-items:flex-start;
}
.contact-row:last-child{border-bottom:1px solid var(--border)}
.contact-row .icon{
  width:38px;
  height:38px;
  background:var(--white);
  border:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--orange);
  flex-shrink:0;
  font-size:14px;
}
.contact-row div strong{display:block;font-size:11px;color:var(--steel-400);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:4px;font-family:'JetBrains Mono',monospace;font-weight:500}
.contact-row div a,.contact-row div span{color:var(--steel-900);font-weight:500;font-size:15.5px}
.contact-row div a:hover{color:var(--orange)}

form.contact-form{background:var(--pure-white);border:1px solid var(--border);padding:48px 44px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{margin-bottom:18px}
.form-field label{
  display:block;
  font-family:'JetBrains Mono',monospace;
  font-size:11px;
  color:var(--steel-500);
  text-transform:uppercase;
  letter-spacing:0.08em;
  margin-bottom:8px;
  font-weight:500;
}
.form-field input,.form-field textarea,.form-field select{
  width:100%;
  padding:14px 16px;
  background:var(--white);
  border:1px solid var(--border);
  font-family:inherit;
  font-size:15px;
  color:var(--steel-900);
  border-radius:var(--radius);
  transition:border-color .15s;
}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{
  outline:none;
  border-color:var(--orange);
}
.form-field textarea{min-height:130px;resize:vertical}
form .btn{width:100%;justify-content:center;padding:16px}
form .disclaimer{font-size:12px;color:var(--steel-400);margin-top:14px;line-height:1.5;font-family:'JetBrains Mono',monospace}

/* ---------- Footer ---------- */
footer{
  background:var(--steel-900);
  color:var(--steel-300);
  padding:80px 0 30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:60px;
  margin-bottom:60px;
}
footer h4{
  color:var(--white);
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:0.1em;
  margin-bottom:20px;
  font-family:'JetBrains Mono',monospace;
  font-weight:500;
}
footer ul{list-style:none}
footer li{margin-bottom:10px}
footer a{color:var(--steel-400);font-size:14px;transition:color .15s}
footer a:hover{color:var(--orange)}
.footer-brand p{color:var(--steel-400);font-size:14px;margin-top:20px;max-width:34ch}
.footer-brand .logo{color:var(--white)}
.footer-brand .logo-text small{color:var(--steel-500)}
.footer-bottom{
  padding-top:30px;
  border-top:1px solid var(--steel-800);
  display:flex;
  justify-content:space-between;
  gap:20px;
  font-family:'JetBrains Mono',monospace;
  font-size:11px;
  color:var(--steel-500);
  text-transform:uppercase;
  letter-spacing:0.06em;
  flex-wrap:wrap;
}
.footer-bottom a{color:var(--steel-500)}
.footer-bottom a:hover{color:var(--orange)}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  section{padding:64px 0}
  .hero-inner,.services-head,.about-split,.two-col,.process-head,.contact-grid{grid-template-columns:1fr;gap:48px}
  .services-grid,.specs-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .project-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
  .emergency::before{display:none}
  .emergency-inner{flex-direction:column;align-items:flex-start}
  .hero-badge{position:static;margin-top:24px;max-width:100%}
  .hero-tag{display:none}
  .menu-toggle{display:block}
  .nav-links{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:var(--pure-white);
    border-bottom:1px solid var(--border);
    flex-direction:column;
    padding:16px;
    gap:0;
    box-shadow:var(--shadow-md);
  }
  .nav-links.open{display:flex}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:14px 12px;width:100%}
  .nav-links a.active::before{display:none}
  .nav-cta{padding:10px 16px;font-size:13px}
  .form-row{grid-template-columns:1fr}
  .hero-meta{flex-wrap:wrap}
  .hero-meta div{flex:1 1 45%;padding:16px 12px}
  .stat-row{grid-template-columns:1fr;gap:0}
  .stat-row div{border-right:0;border-bottom:1px solid var(--border);padding:16px 0}
}
@media (max-width:520px){
  .services-grid,.specs-grid,.process-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .contact-info,form.contact-form{padding:32px 24px}
  .emergency h2{font-size:1.7rem}
}