:root{
    --charcoal:#14181b;
    --steel:#232b31;
    --galvanized:#aab3ba;
    --paper:#eceef0;
    --paper-dim:#dfe2e5;
    --signal:#ff6a13;
    --sky:#4a7fb5;
    --ink:#14181b;
    --line: rgba(20,24,27,0.14);
    --line-dark: rgba(236,238,240,0.16);
    --font-display:'Oswald', sans-serif;
    --font-body:'Work Sans', sans-serif;
    --font-mono:'JetBrains Mono', monospace;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:0.001ms !important; transition-duration:0.001ms !important;}
  }
  body{
    font-family:var(--font-body);
    color:var(--ink);
    background:var(--paper);
    line-height:1.55;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%; display:block;}
  a{color:inherit; text-decoration:none;}
  ul{list-style:none;}

  .eyebrow{
    font-family:var(--font-mono);
    font-size:0.72rem;
    letter-spacing:0.16em;
    text-transform:uppercase;
    color:var(--signal);
    display:flex;
    align-items:center;
    gap:0.6em;
    margin-bottom:0.9em;
  }
  .eyebrow::before{
    content:"";
    width:22px; height:2px;
    background:var(--signal);
    display:inline-block;
  }
  h1,h2,h3{
    font-family:var(--font-display);
    text-transform:uppercase;
    letter-spacing:0.01em;
    font-weight:600;
    line-height:1.05;
  }
  .wrap{
    max-width:1180px;
    margin:0 auto;
    padding:0 clamp(20px,5vw,56px);
  }

  /* ===== HEIGHT GAUGE — signature element ===== */
  #gauge{
    position:fixed;
    right:14px;
    top:0;
    height:100vh;
    width:34px;
    z-index:60;
    display:flex;
    align-items:center;
    pointer-events:none;
  }
  #gauge .rail{
    position:relative;
    width:2px;
    height:72%;
    background:linear-gradient(to top, var(--galvanized), transparent);
    margin:0 auto;
  }
  #gauge .tick{
    position:absolute;
    right:6px;
    display:flex;
    align-items:center;
    gap:6px;
    transform:translateY(50%);
  }
  #gauge .tick span{
    font-family:var(--font-mono);
    font-size:0.6rem;
    color:var(--charcoal);
    opacity:0.55;
    white-space:nowrap;
  }
  #gauge .tick i{
    width:8px; height:1.5px; background:var(--galvanized);
    display:block;
  }
  #gauge .marker{
    position:absolute;
    right:-5px;
    width:12px; height:12px;
    border-radius:2px;
    background:var(--signal);
    transform:translateY(50%) rotate(45deg);
    box-shadow:0 0 0 3px rgba(255,106,19,0.18);
    transition:bottom 0.08s linear;
  }
  @media (max-width:900px){
    #gauge{display:none;}
  }

  /* ===== HEADER ===== */
  header{
    position:sticky; top:0; z-index:50;
    background:var(--charcoal);
    border-bottom:1px solid var(--line-dark);
  }
  .nav{
    position:relative;
    display:flex; align-items:center; justify-content:space-between;
    padding-top:16px; padding-bottom:16px;
  }
  .logo{
    font-family:var(--font-display);
    color:var(--paper);
    font-size:1.15rem;
    letter-spacing:0.03em;
    display:flex; flex-direction:column; line-height:1;
  }
  .logo b{font-weight:700;}
  .logo span{
    font-family:var(--font-mono);
    font-size:0.58rem;
    letter-spacing:0.2em;
    color:var(--signal);
    margin-top:4px;
  }
  .nav-links{
    display:flex; align-items:center; gap:clamp(16px,2.4vw,34px);
  }
  .nav-links a{
    font-family:var(--font-mono);
    font-size:0.74rem;
    letter-spacing:0.06em;
    text-transform:uppercase;
    color:var(--galvanized);
    transition:color 0.15s;
  }
  .nav-links a:hover, .nav-links a:focus-visible{color:var(--paper);}
  .phone-plate{
    font-family:var(--font-mono);
    font-size:0.78rem;
    color:var(--charcoal);
    background:var(--signal);
    padding:9px 16px;
    clip-path:polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
    white-space:nowrap;
  }
  .phone-plate:hover{filter:brightness(1.08);}
  .nav-right{display:flex; align-items:center; gap:12px;}
  .burger{
    display:none; background:none; border:1px solid var(--line-dark);
    color:var(--paper); font-family:var(--font-mono); font-size:0.68rem;
    padding:8px 12px; letter-spacing:0.08em; text-transform:uppercase;
    cursor:pointer;
  }
  .burger:hover, .burger:focus-visible{border-color:var(--paper);}
  @media (max-width:820px){
    .nav-links{
      display:none;
      position:absolute; top:100%; left:0; right:0;
      flex-direction:column; align-items:flex-start; gap:0;
      background:var(--charcoal);
      border-bottom:1px solid var(--line-dark);
      padding:8px clamp(20px,5vw,56px) 18px;
    }
    .nav-links.open{display:flex;}
    .nav-links a{
      width:100%; padding:12px 0; border-top:1px solid var(--line-dark);
    }
    .burger{display:block;}
  }

  /* ===== HERO ===== */
  .hero{
    position:relative;
    min-height:92vh;
    display:flex; align-items:flex-end;
    background:
      linear-gradient(180deg, rgba(20,24,27,0.35) 0%, rgba(20,24,27,0.55) 55%, rgba(20,24,27,0.92) 100%),
      url('https://lingner-geruestbau.de/images/inhalt/startseite/startseite-lingner-geruestbau-01.jpg') center/cover no-repeat;
  }
  .hero-inner{
    padding-bottom:clamp(48px,7vw,88px);
    padding-top:120px;
    width:100%;
  }
  .hero h1{
    color:var(--paper);
    font-size:clamp(2rem, 5vw, 3.8rem);
    max-width:15ch;
  }
  .hero h1 em{
    font-style:normal;
    color:var(--signal);
  }
  .hero-sub{
    color:var(--galvanized);
    max-width:52ch;
    font-size:clamp(0.98rem,1.4vw,1.12rem);
    margin-top:22px;
  }
  .hero-ctas{
    display:flex; gap:16px; flex-wrap:wrap;
    margin-top:36px;
  }
  .btn{
    font-family:var(--font-mono);
    font-size:0.78rem;
    letter-spacing:0.06em;
    text-transform:uppercase;
    padding:15px 26px;
    display:inline-block;
    clip-path:polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
    transition:transform 0.15s, filter 0.15s;
  }
  .btn:hover{transform:translateY(-2px);}
  .btn-solid{background:var(--signal); color:var(--charcoal);}
  .btn-solid:hover{filter:brightness(1.08);}
  .btn-ghost{
    background:transparent; color:var(--paper);
    border:1px solid var(--line-dark);
  }
  .btn-ghost:hover{border-color:var(--paper);}

  .hero-tags{
    display:flex; flex-wrap:wrap; gap:10px 22px;
    margin-top:44px;
    padding-top:22px;
    border-top:1px solid var(--line-dark);
  }
  .hero-tags span{
    font-family:var(--font-mono);
    font-size:0.68rem;
    letter-spacing:0.05em;
    color:var(--galvanized);
    text-transform:uppercase;
  }
  .hero-tags span b{color:var(--paper); font-weight:500;}

  /* ===== SECTION LEDGER DIVIDER ===== */
  .ledger{
    position:relative;
    height:1px;
    background:var(--line);
    margin:0 auto;
    max-width:1180px;
  }
  .ledger i{
    position:absolute; top:-3px;
    width:7px; height:7px; border-radius:50%;
    background:var(--paper);
    border:1.5px solid var(--galvanized);
  }
  .ledger i:first-child{left:clamp(20px,5vw,56px);}
  .ledger i:last-child{right:clamp(20px,5vw,56px);}

  section{padding:clamp(64px,9vw,104px) 0;}

  /* ===== PILLARS ===== */
  .pillars-head{
    display:flex; justify-content:space-between; align-items:flex-end;
    flex-wrap:wrap; gap:20px; margin-bottom:52px;
  }
  .pillars-head h2{font-size:clamp(1.7rem,3.4vw,2.5rem); max-width:14ch;}
  .pillars-head p{max-width:36ch; color:#4b5359; font-size:0.95rem;}
  .pillars{
    display:grid;
    grid-template-columns:repeat(5,1fr);
    gap:0;
    border-top:1px solid var(--line);
  }
  .pillar{
    padding:26px 18px 8px;
    border-right:1px solid var(--line);
    position:relative;
  }
  .pillar:last-child{border-right:none;}
  .pillar .joint{
    width:26px; height:26px;
    border:1.5px solid var(--charcoal);
    border-radius:50%;
    position:relative;
    margin-bottom:20px;
  }
  .pillar .joint::before, .pillar .joint::after{
    content:"";
    position:absolute; background:var(--charcoal);
  }
  .pillar .joint::before{width:14px; height:1.5px; top:50%; left:50%; transform:translate(-50%,-50%);}
  .pillar .joint::after{width:1.5px; height:14px; top:50%; left:50%; transform:translate(-50%,-50%);}
  .pillar h3{font-size:0.98rem; margin-bottom:10px; letter-spacing:0.02em;}
  .pillar p{font-size:0.85rem; color:#4b5359;}
  @media (max-width:900px){
    .pillars{grid-template-columns:repeat(2,1fr);}
    .pillar{border-right:1px solid var(--line); border-bottom:1px solid var(--line);}
    .pillar:nth-child(2n){border-right:none;}
  }
  @media (max-width:520px){
    .pillars{grid-template-columns:1fr;}
    .pillar:nth-child(2n){border-right:1px solid var(--line);}
  }

  /* ===== ABOUT ===== */
  .about{
    display:grid;
    grid-template-columns:1fr 0.9fr;
    gap:clamp(32px,6vw,80px);
    align-items:center;
  }
  .about-text .eyebrow{margin-bottom:20px;}
  .about-text h2{font-size:clamp(1.7rem,3.2vw,2.3rem); margin-bottom:22px; max-width:16ch;}
  .about-text p{color:#3a4046; margin-bottom:16px; font-size:0.98rem;}
  .about-stats{
    display:flex; gap:34px; margin-top:30px; flex-wrap:wrap;
  }
  .about-stats div b{
    font-family:var(--font-display);
    font-size:2.1rem; display:block; color:var(--charcoal);
  }
  .about-stats div span{
    font-family:var(--font-mono);
    font-size:0.66rem; letter-spacing:0.06em; text-transform:uppercase; color:#6a7278;
  }
  .about-photo{position:relative;}
  .about-photo img{width:100%; height:420px; object-fit:cover;}
  .about-photo .cap{
    position:absolute; left:0; bottom:0;
    background:var(--charcoal); color:var(--galvanized);
    font-family:var(--font-mono); font-size:0.66rem; letter-spacing:0.04em;
    padding:9px 14px;
  }
  @media (max-width:860px){
    .about{grid-template-columns:1fr;}
    .about-photo{order:-1;}
    .about-photo img{height:280px;}
  }

  /* ===== GALLERY ===== */
  .gallery-head{margin-bottom:44px;}
  .gallery-head h2{font-size:clamp(1.7rem,3.4vw,2.5rem);}
  .gallery-head p{color:#4b5359; max-width:48ch; margin-top:14px; font-size:0.95rem;}
  .gallery{
    column-count:3; column-gap:14px;
  }
  .gallery figure{
    break-inside:avoid; margin-bottom:14px; position:relative;
    overflow:hidden;
  }
  .gallery img{width:100%; display:block; transition:transform 0.4s;}
  .gallery figure:hover img{transform:scale(1.06);}
  .gallery figcaption{
    position:absolute; left:0; bottom:0; right:0;
    padding:12px 14px 10px;
    background:linear-gradient(0deg, rgba(20,24,27,0.85), transparent);
    color:var(--paper);
    font-family:var(--font-mono);
    font-size:0.68rem; letter-spacing:0.04em;
    opacity:0; transition:opacity 0.25s;
  }
  .gallery figure:hover figcaption{opacity:1;}
  @media (max-width:760px){ .gallery{column-count:2;} }
  @media (max-width:460px){ .gallery{column-count:1;} }

  /* ===== CONTACT ===== */
  .contact-wrap{
    display:grid; grid-template-columns:0.85fr 1.15fr;
    gap:clamp(28px,5vw,60px);
  }
  .contact-card{
    background:var(--charcoal); color:var(--paper);
    padding:clamp(28px,4vw,42px);
    position:relative;
  }
  .contact-card::before{
    content:""; position:absolute; inset:10px;
    border:1px solid var(--line-dark);
    pointer-events:none;
  }
  .contact-card h2{font-size:1.5rem; margin-bottom:26px; color:var(--paper);}
  .contact-row{
    display:flex; gap:14px; padding:14px 0;
    border-top:1px solid var(--line-dark);
    font-size:0.92rem;
  }
  .contact-row:last-of-type{border-bottom:1px solid var(--line-dark);}
  .contact-row .k{
    font-family:var(--font-mono); font-size:0.66rem; letter-spacing:0.06em;
    text-transform:uppercase; color:var(--signal); width:88px; flex-shrink:0; padding-top:2px;
  }
  .contact-row a, .contact-row div{color:var(--galvanized);}
  .contact-row a:hover{color:var(--paper);}
  .contact-card .btn{margin-top:26px;}
  .map-frame{
    width:100%; height:100%; min-height:340px; border:0; filter:grayscale(0.35) contrast(1.05);
  }
  @media (max-width:860px){
    .contact-wrap{grid-template-columns:1fr;}
    .map-frame{min-height:280px;}
  }

  /* ===== CTA BANNER ===== */
  .cta-banner{
    background:var(--signal);
    padding:clamp(40px,7vw,64px) 0;
  }
  .cta-inner{
    display:flex; align-items:center; justify-content:space-between;
    flex-wrap:wrap; gap:24px;
  }
  .cta-inner h2{color:var(--charcoal); font-size:clamp(1.5rem,3.4vw,2.1rem); max-width:16ch;}
  .cta-inner .btn-solid{background:var(--charcoal); color:var(--paper);}

  /* ===== FOOTER ===== */
  footer{
    background:var(--charcoal); color:var(--galvanized);
    padding:52px 0 28px;
  }
  .foot-top{
    display:flex; justify-content:space-between; flex-wrap:wrap; gap:30px;
    padding-bottom:32px; border-bottom:1px solid var(--line-dark);
  }
  .foot-nav{display:flex; gap:28px; flex-wrap:wrap;}
  .foot-nav a{
    font-family:var(--font-mono); font-size:0.72rem; letter-spacing:0.05em;
    text-transform:uppercase; color:var(--galvanized);
  }
  .foot-nav a:hover{color:var(--paper);}
  .foot-bottom{
    display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
    margin-top:22px;
    font-family:var(--font-mono); font-size:0.66rem; color:#6a7278;
  }