/* ============================================================
   AURA TROCKENBAU — Design tokens
   Signature: "Wasserwaage"-Präzisionslinie + Ständerwerk-Raster,
   referenziert Trockenbau-Profile (vertikale "Ständer"-Linien)
   ============================================================ */

:root{
  /* --- Color tokens (overridable at runtime via Control Panel) --- */
  --c-black:        #0b0b0c;
  --c-black-soft:   #141416;
  --c-panel:        #1a1a1d;
  --c-red:          #c8102e;
  --c-red-deep:     #8c0f22;
  --c-red-bright:   #e21a3c;
  --c-off:          #f3f1ec;
  --c-off-dim:      #cfcdc8;
  --c-steel:        #9a9ca3;
  --c-steel-line:   rgba(201,205,211,0.14);

  /* --- Type tokens --- */
  --f-display: 'Oswald', 'Arial Narrow', sans-serif;
  --f-body: 'Work Sans', 'Segoe UI', sans-serif;
  --f-mono: 'Roboto Mono', monospace;

  --radius: 2px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--c-black);
  color:var(--c-off);
  font-family:var(--f-body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{ font-family:var(--f-display); text-transform:uppercase; margin:0; letter-spacing:0.02em; }
p{ margin:0 0 1em; color:var(--c-off-dim); }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; cursor:pointer; background:none; border:none; color:inherit; }

:focus-visible{
  outline:2px solid var(--c-red-bright);
  outline-offset:3px;
}

.wrap{ max-width:1180px; margin:0 auto; padding:0 28px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}

/* ============ Ständerwerk background grid (signature motif) ============ */
.stud-grid{
  position:absolute; inset:0;
  background-image:
    repeating-linear-gradient(90deg, var(--c-steel-line) 0 1px, transparent 1px 88px);
  pointer-events:none;
}
.stud-grid.dense{
  background-image:
    repeating-linear-gradient(90deg, var(--c-steel-line) 0 1px, transparent 1px 44px);
}

/* ============ Header ============ */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:rgba(11,11,12,0.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-steel-line);
}
.site-header .wrap{
  display:grid; grid-template-columns:max-content 1fr max-content max-content; align-items:center; gap:24px;
  height:76px;
}
.logo{
  font-family:var(--f-display);
  font-size:22px; font-weight:600; letter-spacing:0.04em;
  color:var(--c-off); display:flex; align-items:center; gap:10px;
  white-space:nowrap; flex-shrink:0;
}
.logo .mark{
  width:12px; height:26px; background:var(--c-red);
  clip-path:polygon(0 0,100% 0,60% 100%,0 100%);
  display:inline-block;
}
.logo-icon-img{
  height:34px; width:91px; display:block; flex-shrink:0; object-fit:contain;
}
.footer-logo{ display:inline-block; }
.footer-logo img{ height:44px; width:auto; display:block; }
.logo b{ color:var(--c-red); font-weight:700; }

.nav-links{ display:flex; gap:34px; justify-content:center; }
.nav-links a{
  font-family:var(--f-mono); font-size:12.5px; letter-spacing:0.08em;
  text-transform:uppercase; color:var(--c-off-dim); white-space:nowrap;
  padding:6px 0; position:relative; transition:color .2s;
}
.nav-links a:hover{ color:var(--c-off); }
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:0; width:0; height:2px;
  background:var(--c-red); transition:width .25s ease;
}
.nav-links a:hover::after{ width:100%; }

.header-cta{
  display:flex; align-items:center; gap:18px;
}
.phone-pill{
  font-family:var(--f-mono); font-size:13px; color:var(--c-off);
  border:1px solid var(--c-steel-line); padding:9px 16px; border-radius:var(--radius);
  display:flex; align-items:center; gap:8px;
}
.phone-pill .dot{ width:6px; height:6px; border-radius:50%; background:var(--c-red); }

.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--f-mono); font-size:12.5px; letter-spacing:0.08em; text-transform:uppercase;
  padding:13px 24px; border-radius:var(--radius); border:1px solid transparent;
  transition:transform .2s ease, background .2s ease, border-color .2s ease;
}
.btn-primary{
  background:var(--c-red); color:#fff; font-weight:600;
}
.btn-primary:hover{ background:var(--c-red-bright); transform:translateY(-2px); }
.btn-outline{
  border-color:var(--c-steel-line); color:var(--c-off); background:transparent;
}
.btn-outline:hover{ border-color:var(--c-red); color:var(--c-red); }

.nav-toggle{ display:none; background:none; border:none; color:var(--c-off); font-size:24px; }
.mobile-cta{ display:none; }

/* ============ Hero ============ */
.hero{
  position:relative; min-height:100vh; display:flex; align-items:center;
  overflow:hidden; padding-top:76px;
  background:var(--c-black);
}
.hero-bg{
  position:absolute; inset:0; z-index:0;
  background:
    linear-gradient(180deg, rgba(11,11,12,0.55) 0%, rgba(11,11,12,0.92) 72%, var(--c-black) 100%),
    url('../images/ceiling-framing-large.jpg') center 30%/cover no-repeat;
}
.hero::before{
  content:''; position:absolute; inset:0; z-index:1;
  background:linear-gradient(100deg, var(--c-black) 0%, rgba(11,11,12,0.65) 38%, transparent 62%);
}
.hero .stud-grid{ z-index:1; }
.hero .wrap{ position:relative; z-index:2; width:100%; }

.hero-logo{
  height:160px; width:auto; margin:0 auto 34px; display:block;
  filter:drop-shadow(0 4px 18px rgba(0,0,0,0.5));
}
.eyebrow{
  font-family:var(--f-mono); font-size:13px; letter-spacing:0.18em; text-transform:uppercase;
  color:var(--c-red-bright); display:flex; align-items:center; gap:12px; margin-bottom:22px;
}
.eyebrow .rule{ width:44px; height:1px; background:var(--c-red-bright); }

.hero h1{
  font-size:clamp(32px,4.4vw,60px); line-height:1.25; color:#fff; max-width:760px;
}
.hero h1 em{ font-style:normal; color:var(--c-red); }

.hero .lead{
  max-width:520px; margin-top:26px; font-size:17.5px; color:var(--c-off-dim); line-height:1.75;
}
.hero-actions{ display:flex; gap:16px; margin-top:38px; flex-wrap:wrap; }

/* Level-line signature element */
.level-line{
  position:relative; display:flex; align-items:center; gap:14px;
  margin-top:64px; max-width:560px;
}
.level-line .track{
  flex:1; height:2px; background:var(--c-steel-line); position:relative;
}
.level-line .track::before{
  content:''; position:absolute; left:0; top:-1px; height:4px; width:64%;
  background:var(--c-red);
}
.level-line .bubble{
  width:20px; height:20px; border-radius:50%;
  border:2px solid var(--c-red); background:rgba(200,16,46,0.18);
  flex-shrink:0;
}
.level-line .label{
  font-family:var(--f-mono); font-size:11.5px; letter-spacing:0.1em; color:var(--c-steel);
  text-transform:uppercase; white-space:nowrap;
}

.hero-stats{
  position:absolute; right:28px; bottom:48px; z-index:3;
  display:flex; gap:0; border:1px solid var(--c-steel-line); border-radius:var(--radius);
}
.hero-stats div{
  padding:18px 26px; border-right:1px solid var(--c-steel-line); text-align:center;
}
.hero-stats div:last-child{ border-right:none; }
.hero-stats strong{
  display:block; font-family:var(--f-display); font-size:28px; color:var(--c-red-bright);
}
.hero-stats span{
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:0.06em; color:var(--c-steel);
  text-transform:uppercase;
}

/* ============ Section shell ============ */
.section{ padding:118px 0; position:relative; }
.section-alt{ background:var(--c-black-soft); }
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end; gap:40px;
  margin-bottom:64px; flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(30px,4vw,48px); color:#fff; max-width:640px; line-height:1.15;
}
.section-head .kicker{
  font-family:var(--f-mono); font-size:12.5px; letter-spacing:0.16em; color:var(--c-red-bright);
  text-transform:uppercase; margin-bottom:14px; display:block;
}
.section-head .desc{ max-width:380px; }

/* ============ About ============ */
.about-grid{
  display:grid; grid-template-columns:0.95fr 1.05fr; gap:70px; align-items:center;
}
.about-media{ position:relative; }
.about-media img{ border-radius:var(--radius); width:100%; height:520px; object-fit:cover; }
.about-media .frame{
  position:absolute; top:22px; left:-22px; right:22px; bottom:-22px;
  border:1px solid var(--c-red); border-radius:var(--radius); z-index:-1;
}
.about-media .badge{
  position:absolute; bottom:-1px; right:-1px; background:var(--c-red);
  color:#fff; padding:20px 24px; text-align:center; border-radius:var(--radius) 0 0 0;
}
.about-media .badge strong{ font-family:var(--f-display); font-size:34px; display:block; line-height:1; }
.about-media .badge span{ font-family:var(--f-mono); font-size:10px; letter-spacing:0.08em; text-transform:uppercase; }

.about-copy p{ font-size:16px; }
.about-copy p:first-of-type{
  font-size:19px; color:var(--c-off); line-height:1.65;
}

/* ============ Process (genuinely sequential -> numbered) ============ */
.process{
  display:grid; grid-template-columns:repeat(3,1fr); gap:2px;
  background:var(--c-steel-line); border:1px solid var(--c-steel-line);
}
.process-step{
  background:var(--c-black); padding:36px 30px 30px;
}
.process-step .num{
  font-family:var(--f-mono); color:var(--c-red-bright); font-size:13px; letter-spacing:0.1em;
}
.process-step img{ height:190px; width:100%; object-fit:cover; border-radius:var(--radius); margin:18px 0 20px; filter:grayscale(15%); }
.process-step h3{ font-size:19px; color:#fff; margin-bottom:8px; }
.process-step p{ font-size:14.5px; margin:0; }
.process-arrow{
  display:none;
}

/* ============ Services ============ */
.services-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--c-steel-line); border:1px solid var(--c-steel-line);
}
.service-card{
  background:var(--c-black-soft); padding:38px 32px; transition:background .25s ease;
  position:relative; overflow:hidden;
}
.service-card:hover{ background:#1f1a1b; }
.service-card::before{
  content:''; position:absolute; left:0; top:0; bottom:0; width:3px; background:var(--c-red);
  transform:scaleY(0); transform-origin:top; transition:transform .25s ease;
}
.service-card:hover::before{ transform:scaleY(1); }
.service-icon{
  width:46px; height:46px; margin-bottom:22px; color:var(--c-red-bright);
}
.service-icon svg{ width:100%; height:100%; }
.service-card h3{ font-size:19px; color:#fff; margin-bottom:10px; letter-spacing:0.01em; }
.service-card p{ font-size:14.5px; margin:0; }

/* ============ Gallery ============ */
.gallery-grid{
  display:grid; grid-template-columns:repeat(4, 1fr); grid-auto-rows:190px; gap:8px;
}
.gallery-item{
  position:relative; overflow:hidden; border-radius:var(--radius);
}
.gallery-item img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.gallery-item:hover img{ transform:scale(1.08); }
.gallery-item .tag{
  position:absolute; left:12px; bottom:12px; background:rgba(11,11,12,0.82);
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:0.06em; text-transform:uppercase;
  padding:7px 12px; border-left:2px solid var(--c-red); color:var(--c-off);
}
.gallery-item.wide{ grid-column:span 2; }
.gallery-item.tall{ grid-row:span 2; }

/* ============ Why us ============ */
.why-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--c-steel-line);
  border-top:1px solid var(--c-steel-line); border-bottom:1px solid var(--c-steel-line);
}
.why-item{ background:var(--c-black); padding:40px 26px; text-align:left; }
.why-item .n{
  font-family:var(--f-display); font-size:44px; color:var(--c-red); opacity:0.9; line-height:1;
  margin-bottom:16px;
}
.why-item h4{ font-size:16px; color:#fff; margin-bottom:8px; }
.why-item p{ font-size:14px; margin:0; }

/* ============ CTA strip ============ */
.cta-strip{
  background:linear-gradient(100deg, var(--c-red-deep), var(--c-red) 60%, var(--c-red-deep));
  padding:70px 0;
}
.cta-strip .wrap{
  display:flex; align-items:center; justify-content:space-between; gap:30px; flex-wrap:wrap;
}
.cta-strip h2{ color:#fff; font-size:clamp(26px,3.4vw,38px); max-width:560px; }
.cta-strip p{ color:rgba(255,255,255,0.85); margin-top:10px; }
.cta-strip .btn-outline{ border-color:rgba(255,255,255,0.5); color:#fff; }
.cta-strip .btn-outline:hover{ background:#fff; color:var(--c-red-deep); border-color:#fff; }

/* ============ Contact ============ */
.contact-grid{
  display:grid; grid-template-columns:0.9fr 1.1fr; gap:70px;
}
.contact-list{ display:flex; flex-direction:column; gap:26px; margin-top:34px; }
.contact-list li{
  display:flex; gap:18px; align-items:flex-start; padding-bottom:24px;
  border-bottom:1px solid var(--c-steel-line);
}
.contact-list .ic{
  width:38px; height:38px; border:1px solid var(--c-red); border-radius:50%;
  display:flex; align-items:center; justify-content:center; color:var(--c-red-bright);
  flex-shrink:0;
}
.contact-list .ic svg{ width:17px; height:17px; }
.contact-list strong{ display:block; color:#fff; font-size:15px; margin-bottom:4px; }
.contact-list span, .contact-list a{ color:var(--c-off-dim); font-size:14.5px; }
.contact-list a:hover{ color:var(--c-red-bright); }

.form-panel{
  background:var(--c-black-soft); border:1px solid var(--c-steel-line); padding:40px;
  border-radius:var(--radius);
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:16px; }
.field{ display:flex; flex-direction:column; gap:8px; }
.field.full{ grid-column:1 / -1; }
.field label{
  font-family:var(--f-mono); font-size:11px; letter-spacing:0.08em; text-transform:uppercase;
  color:var(--c-steel);
}
.field input, .field textarea, .field select{
  background:var(--c-black); border:1px solid var(--c-steel-line); color:var(--c-off);
  padding:12px 14px; border-radius:var(--radius); font-family:var(--f-body); font-size:14.5px;
}
.field input:focus, .field textarea:focus, .field select:focus{ border-color:var(--c-red); outline:none; }
.field textarea{ resize:vertical; min-height:110px; }
.form-panel .btn{ width:100%; justify-content:center; margin-top:6px; }
.form-note{ font-size:12.5px; color:var(--c-steel); margin-top:14px; text-align:center; }
.form-status{
  font-size:14px; text-align:center; line-height:1.5; border-radius:var(--radius);
  transition:all .2s ease;
}
.form-status:empty{ display:none; }
.form-status.is-success{
  margin-top:16px; padding:14px 16px; background:rgba(34,197,94,0.12);
  border:1px solid rgba(34,197,94,0.4); color:#4ade80;
}
.form-status.is-error{
  margin-top:16px; padding:14px 16px; background:rgba(200,16,46,0.12);
  border:1px solid rgba(200,16,46,0.4); color:var(--c-red-bright);
}

/* ============ Footer ============ */
.site-footer{ background:var(--c-black); border-top:1px solid var(--c-steel-line); padding:56px 0 26px; }
.footer-top{
  display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; padding-bottom:40px;
  border-bottom:1px solid var(--c-steel-line);
}
.footer-col h5{
  font-family:var(--f-mono); font-size:11.5px; letter-spacing:0.1em; text-transform:uppercase;
  color:var(--c-steel); margin-bottom:16px;
}
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:14px; color:var(--c-off-dim); }
.footer-col a:hover{ color:var(--c-red-bright); }
.footer-bottom{
  display:flex; justify-content:space-between; padding-top:24px; flex-wrap:wrap; gap:10px;
}
.footer-bottom p{ margin:0; font-size:12.5px; color:var(--c-steel); }
.footer-bottom a{ font-size:12.5px; color:var(--c-steel); }
.footer-bottom a:hover{ color:var(--c-red-bright); }

/* ============ Admin link (subtle, footer) ============ */
.admin-link{ opacity:0.55; }
.admin-link:hover{ opacity:1; }

/* ============ Reveal-on-scroll ============ */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease; }
.reveal.is-visible{ opacity:1; transform:none; }

/* ============ Mobile ============ */
@media (max-width:960px){
  .about-grid, .contact-grid{ grid-template-columns:1fr; }
  .process, .services-grid{ grid-template-columns:repeat(2,1fr); }
  .why-grid{ grid-template-columns:repeat(2,1fr); }
  .gallery-grid{ grid-template-columns:repeat(2,1fr); }
  .gallery-item.wide{ grid-column:span 2; }
  .hero-stats{ position:static; margin-top:50px; display:inline-flex; }
}
@media (max-width:720px){
  .nav-links, .phone-pill, .header-cta .btn-primary{ display:none; }
  .site-header .wrap{ grid-template-columns:max-content 1fr max-content; }
  .nav-toggle{ display:block; }
  .mobile-cta{ display:inline-flex; margin-top:14px; justify-content:center; align-self:flex-start; }
  .hero{ min-height:auto; padding:150px 0 90px; }
  .hero-logo{ height:100px; margin:0 auto 22px; }
  .process, .services-grid, .why-grid{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:1fr 1fr; grid-auto-rows:150px; }
  .form-row{ grid-template-columns:1fr; }
  .footer-top{ flex-direction:column; gap:30px; }
}