/* Baustella One-Page (Frontend)
   Farben (Beton & Stolz)
   - Anthrazit: #1E1E1E
   - Betongrau: #3A3A3A
   - Offwhite:  #F5F5F5
   - Akzent Rot:#C1121F
*/

:root{
  --bg: #111;
  --panel: #1E1E1E;
  --panel2:#151515;
  --text:#F5F5F5;
  --muted:#B8B8B8;
  --line:#2A2A2A;
  --accent:#C1121F;
  --accent2:#ff3b47;
  --shadow: 0 20px 60px rgba(0,0,0,.45);
  --radius: 18px;
  --radius2: 26px;
  --max: 1140px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 10% 0%, rgba(193,18,31,.18), transparent 60%),
              radial-gradient(900px 500px at 90% 20%, rgba(255,59,71,.12), transparent 60%),
              #0b0b0b;
  color: var(--text);
  line-height:1.55;
}

a{ color:inherit; text-decoration:none; }
a:hover{ opacity:.92; }
img{ max-width:100%; display:block; }

.container{
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.small{ font-size:.9rem; }
.muted{ color: var(--muted); }
.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}
.skip-link{
  position:absolute; left:-9999px; top:10px;
  background:var(--accent); color:#fff; padding:10px 14px; border-radius:12px; z-index:9999;
}
.skip-link:focus{ left:10px; }

/* Header */
.site-header{
  position: sticky;
  top:0;
  z-index:1000;
  background: rgba(10,10,10,.7);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
  gap:16px;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.brand-mark{
  width:40px; height:40px;
  display:grid; place-items:center;
  background: linear-gradient(180deg, rgba(193,18,31,.95), rgba(193,18,31,.75));
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 14px;
  font-family: "Bebas Neue", sans-serif;
  font-size: 1.6rem;
  letter-spacing: .5px;
}
.brand-name{
  font-family: "Bebas Neue", sans-serif;
  font-size: 1.65rem;
  letter-spacing: 1.2px;
  line-height:1;
}
.brand-tag{
  display:block;
  font-size:.85rem;
  color: var(--muted);
}

.nav{ display:flex; align-items:center; }
.nav-menu{
  display:flex;
  align-items:center;
  gap:16px;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-menu a{
  color: var(--muted);
  font-weight:600;
  font-size:.95rem;
}
.nav-menu a:hover{ color: var(--text); }

.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid rgba(255,255,255,.12);
  border-radius: 12px;
  padding:10px 12px;
  cursor:pointer;
}
.nav-toggle-line{
  display:block;
  width:22px;
  height:2px;
  background: var(--text);
  margin:4px 0;
  opacity:.9;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: linear-gradient(180deg, rgba(193,18,31,.98), rgba(193,18,31,.78));
  box-shadow: 0 12px 30px rgba(193,18,31,.18);
  font-weight:800;
  letter-spacing:.2px;
}
.btn:hover{ transform: translateY(-1px); transition: transform .15s ease; }
.btn-ghost{
  background: transparent;
  box-shadow:none;
}
.btn-small{ padding:10px 12px; }
.btn-wide{ width:100%; }

/* Sections */
.section{ padding: 70px 0; }
.section.dark{
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.section-head{
  display:flex;
  gap:18px;
  justify-content:space-between;
  align-items:flex-end;
  margin-bottom: 22px;
}
.section-head p{ max-width: 62ch; }
.section h2{
  font-family: "Bebas Neue", sans-serif;
  font-size: clamp(2rem, 3.2vw, 3rem);
  letter-spacing: 1px;
  margin:0;
}
h3{ margin:0 0 8px; }
.lead{ font-size: 1.1rem; max-width: 70ch; }

/* Hero */
.hero{ padding-top: 28px; }
.hero-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 22px;
  align-items: start;
  padding: 36px 0 18px;
}
.kicker{
  color: var(--muted);
  font-weight:700;
  letter-spacing:.12em;
  text-transform: uppercase;
  font-size: .8rem;
  margin: 0 0 10px;
}
.hero h1{
  font-family: "Bebas Neue", sans-serif;
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  letter-spacing: 1px;
  margin: 0 0 12px;
  line-height: .92;
}
.accent{ color: var(--accent2); }
.hero-cta{ display:flex; gap:12px; flex-wrap:wrap; margin: 18px 0 18px; }

.hero-proof{
  display:flex;
  gap: 14px;
  flex-wrap:wrap;
  margin-top: 18px;
}
.proof-item{
  flex: 1 1 160px;
  display:flex;
  gap:10px;
  align-items:center;
  padding: 12px 14px;
  border:1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.02);
  border-radius: 16px;
}
.proof-number{
  width:44px; height:44px;
  display:grid; place-items:center;
  border-radius: 14px;
  background: rgba(193,18,31,.16);
  border: 1px solid rgba(193,18,31,.35);
  font-weight:900;
}
.proof-text{ font-size:.95rem; color: var(--muted); }
.proof-text strong{ color: var(--text); }

.hero-media{
  border-radius: var(--radius2);
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.02);
  box-shadow: var(--shadow);
  overflow:hidden;
  position: relative;
}
.hero-media img{
  width: 100%;
  height: auto;
  display:block;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,.0), rgba(0,0,0,.35));
  pointer-events:none;
}
.hero-media-badge{
  position:absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  z-index:2;
}

.hero-strip{
  margin-top: 18px;
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
  background: rgba(255,255,255,.02);
}
.strip-inner{
  display:flex;
  gap:14px;
  align-items:center;
  padding: 12px 0;
  color: var(--muted);
}
.strip-label{
  font-weight:900;
  text-transform: uppercase;
  letter-spacing:.08em;
  font-size:.8rem;
  color: var(--text);
}
.strip-items{ display:flex; gap:18px; flex-wrap:wrap; }
.strip-items span{ white-space:nowrap; }

/* Statement */
.statement-grid{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 18px;
  align-items: start;
}
.statement-card{
  border-radius: var(--radius);
  background: rgba(255,255,255,.02);
  border:1px solid rgba(255,255,255,.08);
  padding: 18px;
}
.quote{
  font-size: 1.1rem;
  margin: 0 0 8px;
}

/* Cards */
.cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card{
  border-radius: var(--radius);
  background: rgba(255,255,255,.02);
  border:1px solid rgba(255,255,255,.08);
  padding: 18px 18px 16px;
  box-shadow: 0 14px 40px rgba(0,0,0,.25);
}
.card p{ color: var(--muted); margin-top:0; }
.card .mini{ color: var(--muted); }
.card.highlight{
  border-color: rgba(193,18,31,.45);
  background: linear-gradient(180deg, rgba(193,18,31,.12), rgba(255,255,255,.02));
}
.mini{ margin: 10px 0 0; padding-left:18px; }
.mini li{ margin: 6px 0; }

/* Why */
.why-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 18px;
}
.why-item{
  border-radius: var(--radius);
  background: rgba(0,0,0,.18);
  border: 1px solid rgba(255,255,255,.08);
  padding: 16px;
}
.why-item p{ margin:0; color: var(--muted); }
.badge-row{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top: 18px;
}
.badge{
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.02);
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--muted);
  font-weight:700;
  font-size:.9rem;
}

/* Projects */
.projects{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.project{
  border-radius: var(--radius);
  border:1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.02);
  overflow:hidden;
  box-shadow: 0 14px 40px rgba(0,0,0,.22);
}
.project-media{
  height: 160px;
  background:
    linear-gradient(135deg, rgba(193,18,31,.25), rgba(255,255,255,.03)),
    repeating-linear-gradient(45deg, rgba(255,255,255,.08) 0 8px, rgba(255,255,255,.02) 8px 16px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.project-body{ padding: 16px; }
.project-body p{ margin-top:0; color: var(--muted); }

/* Steps */
.steps{
  list-style:none;
  margin: 0;
  padding: 0;
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.step{
  display:flex;
  gap: 12px;
  border:1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.02);
  border-radius: var(--radius);
  padding: 16px;
}
.step-num{
  width:42px; height:42px;
  display:grid; place-items:center;
  border-radius: 14px;
  background: rgba(193,18,31,.16);
  border: 1px solid rgba(193,18,31,.35);
  font-weight:900;
  flex: 0 0 auto;
}
.step p{ margin:0; color: var(--muted); }

/* FAQ */
.faq{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
details{
  border-radius: var(--radius);
  border:1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.02);
  padding: 14px 16px;
}
summary{
  cursor:pointer;
  font-weight:800;
}
details p{ margin: 10px 0 0; color: var(--muted); }

/* Contact */
.contact{
  background: linear-gradient(180deg, rgba(193,18,31,.06), rgba(255,255,255,.01));
  border-top:1px solid rgba(255,255,255,.06);
}
.contact-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items:start;
}
.contact-box{
  margin-top: 14px;
  border-radius: var(--radius);
  border:1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.18);
  padding: 14px 16px;
}
.note{
  margin-top: 12px;
  border-left: 3px solid var(--accent);
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255,255,255,.02);
  color: var(--muted);
}
.form{
  border-radius: var(--radius2);
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.18);
  padding: 18px;
  box-shadow: var(--shadow);
}
.form-row{ display:flex; flex-direction:column; gap:8px; margin-bottom: 12px; }
label{ font-weight:800; color: var(--muted); font-size:.92rem; }
input, select, textarea{
  background: rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.10);
  color: var(--text);
  border-radius: 14px;
  padding: 12px 12px;
  outline:none;
}
input:focus, select:focus, textarea:focus{
  border-color: rgba(193,18,31,.55);
  box-shadow: 0 0 0 4px rgba(193,18,31,.14);
}
textarea{ resize: vertical; min-height: 120px; }
.form-actions{ margin-top: 6px; }

.form-status{
  margin-bottom: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  color: var(--muted);
}
.form-status.ok{ border-color: rgba(60, 255, 120, .35); color: #c9ffd9; }
.form-status.err{ border-color: rgba(255, 80, 90, .45); color: #ffd0d4; }

/* Footer */
.site-footer{
  border-top:1px solid rgba(255,255,255,.06);
  background: rgba(0,0,0,.2);
  padding: 32px 0 18px;
}
.footer-grid{
  display:flex;
  justify-content:space-between;
  gap: 18px;
  flex-wrap:wrap;
}
.footer-brand{
  font-family: "Bebas Neue", sans-serif;
  font-size: 1.8rem;
  letter-spacing: 1px;
}
.footer-links{
  display:flex;
  gap: 14px;
  flex-wrap:wrap;
  align-items:center;
  color: var(--muted);
  font-weight:700;
}
.footer-links a:hover{ color: var(--text); }
.footer-bottom{ padding-top: 14px; }

/* Modal */
.modal{
  border: none;
  padding: 0;
  background: transparent;
  max-width: 720px;
  width: calc(100% - 24px);
}
.modal::backdrop{ background: rgba(0,0,0,.65); }
.modal-inner{
  border-radius: var(--radius2);
  border:1px solid rgba(255,255,255,.12);
  background: #0f0f0f;
  box-shadow: var(--shadow);
  overflow:hidden;
}
.modal-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding: 14px 16px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.modal-body{ padding: 16px; color: var(--muted); }
.icon-btn{
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.10);
  color: var(--text);
  border-radius: 12px;
  padding: 8px 10px;
  cursor:pointer;
}

/* Responsive */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .statement-grid{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: repeat(2, 1fr); }
  .projects{ grid-template-columns: 1fr; }
  .why-grid{ grid-template-columns: repeat(2, 1fr); }
  .steps{ grid-template-columns: 1fr; }
  .faq{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
}

@media (max-width: 760px){
  .nav-toggle{ display:inline-flex; }
  .nav-menu{
    position: absolute;
    right: 20px;
    top: 62px;
    width: min(360px, calc(100vw - 40px));
    display:none;
    flex-direction:column;
    gap: 10px;
    padding: 12px;
    border-radius: 18px;
    background: rgba(10,10,10,.92);
    border:1px solid rgba(255,255,255,.10);
    box-shadow: var(--shadow);
  }
  .nav-menu.open{ display:flex; }
  .nav-menu a{ padding: 10px 10px; border-radius: 12px; }
  .nav-menu a:hover{ background: rgba(255,255,255,.04); }
  .section-head{ flex-direction:column; align-items:flex-start; }
  .cards{ grid-template-columns: 1fr; }
  .why-grid{ grid-template-columns: 1fr; }
}