/* ============================================================
   Sedtke 3D Solutions — Design System
   Keine externen Ressourcen (keine Google Fonts, keine CDNs) —
   DSGVO-freundlich, da keine Nutzerdaten an Dritte abfließen.
   ============================================================ */
:root{
  --bg:#080b10;
  --bg-2:#0d131c;
  --surface:#121a26;
  --surface-2:#18222f;
  --line:#22303f;
  --line-soft:rgba(34,48,63,.55);

  --cyan:#00d4ff;          /* Präzision */
  --cyan-dim:#0891b2;
  --heat:#ff7a18;          /* Extrusion */
  --heat-dim:#c2410c;
  --green:#34d399;

  --text:#e8eef6;
  --muted:#8fa0b5;
  --muted-2:#64748b;

  --font:'Segoe UI Variable Display','Segoe UI',system-ui,-apple-system,'Helvetica Neue',Arial,sans-serif;
  --mono:'Cascadia Mono','JetBrains Mono',Consolas,ui-monospace,monospace;

  --wrap:1200px;
  --r:4px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
::selection{background:var(--cyan);color:#04121a}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ---------- Technischer Hintergrund ---------- */
.grid-bg{
  position:relative;
  background-image:
    linear-gradient(var(--line-soft) 1px,transparent 1px),
    linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);
  background-size:56px 56px;
}
.grid-bg::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 70% 60% at 50% 0%,transparent,var(--bg) 78%);
}
.grid-bg>*{position:relative;z-index:1}

/* ============================================================
   TESTPHASEN-BANNER
   ============================================================ */
.beta{
  background:repeating-linear-gradient(135deg,rgba(255,122,24,.16) 0 14px,rgba(255,122,24,.07) 14px 28px);
  border-bottom:1px solid rgba(255,122,24,.4);
  font-size:14px;
}
.beta .wrap{display:flex;align-items:center;gap:14px;padding-top:11px;padding-bottom:11px;flex-wrap:wrap}
.beta-tag{
  flex:0 0 auto;background:var(--heat);color:#160800;font-weight:800;font-size:11px;
  letter-spacing:1.6px;padding:4px 10px;border-radius:2px;text-transform:uppercase;
}
.beta p{margin:0;color:#ffdcc2}
.beta strong{color:#fff}

/* ============================================================
   HEADER
   ============================================================ */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(8,11,16,.86);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
header.site .wrap{display:flex;align-items:center;gap:26px;height:74px}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.logo svg{height:38px;width:auto;display:block}
.logo-txt{line-height:1.05}
.logo-txt b{display:block;font-size:17px;font-weight:700;letter-spacing:.4px;color:#fff}
.logo-txt span{display:block;font-size:9.5px;letter-spacing:2.4px;color:var(--muted-2);text-transform:uppercase;margin-top:2px}
nav.main{margin-left:auto;display:flex;align-items:center;gap:6px}
nav.main a{
  color:var(--muted);font-size:14px;font-weight:500;padding:9px 14px;border-radius:var(--r);
  transition:.16s;letter-spacing:.2px;
}
nav.main a:hover{color:#fff;background:rgba(0,212,255,.08);text-decoration:none}
nav.main a.active{color:var(--cyan)}
.navtoggle{display:none;margin-left:auto;background:transparent;border:1px solid var(--line);
  color:var(--text);width:42px;height:38px;border-radius:var(--r);cursor:pointer;font-size:17px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;font-size:14.5px;font-weight:650;
  padding:12px 22px;border-radius:var(--r);border:1px solid transparent;cursor:pointer;
  transition:.18s;letter-spacing:.2px;font-family:var(--font);
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--cyan);color:#04121a;box-shadow:0 6px 24px -8px rgba(0,212,255,.7)}
.btn-primary:hover{background:#4ce1ff;box-shadow:0 10px 30px -8px rgba(0,212,255,.85)}
.btn-heat{background:var(--heat);color:#190800;box-shadow:0 6px 24px -8px rgba(255,122,24,.7)}
.btn-heat:hover{background:#ff923f}
.btn-ghost{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}

/* ============================================================
   SECTIONS
   ============================================================ */
section{padding:88px 0}
section.tight{padding:60px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11.5px;
  letter-spacing:2.6px;text-transform:uppercase;color:var(--cyan);margin:0 0 16px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--cyan)}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0 0 18px}
h1{font-size:clamp(34px,5.2vw,58px);font-weight:750}
h2{font-size:clamp(27px,3.4vw,40px);font-weight:700}
h3{font-size:19px;font-weight:650;letter-spacing:-.01em}
.lead{font-size:clamp(16.5px,1.6vw,19px);color:var(--muted);max-width:62ch;margin:0 0 28px}
p{margin:0 0 16px}
.muted{color:var(--muted)}

/* ---------- Hero ---------- */
.hero{padding:96px 0 84px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}
.hero-facts{display:flex;gap:30px;flex-wrap:wrap;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.hero-facts div b{display:block;font-family:var(--mono);font-size:21px;color:#fff}
.hero-facts div span{font-size:12px;color:var(--muted-2);letter-spacing:1.2px;text-transform:uppercase}

/* ---------- Cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px}
.card{
  background:linear-gradient(160deg,var(--surface),var(--bg-2));
  border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;
  transition:.2s;position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;left:0;top:0;height:2px;width:100%;
  background:linear-gradient(90deg,var(--cyan),transparent);opacity:0;transition:.25s;
}
.card:hover{border-color:#31465c;transform:translateY(-3px)}
.card:hover::before{opacity:1}
.card .ico{
  width:44px;height:44px;border-radius:var(--r);display:grid;place-items:center;margin-bottom:16px;
  background:rgba(0,212,255,.09);border:1px solid rgba(0,212,255,.28);
}
.card .ico svg{width:22px;height:22px;stroke:var(--cyan);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card.heat .ico{background:rgba(255,122,24,.09);border-color:rgba(255,122,24,.3)}
.card.heat .ico svg{stroke:var(--heat)}
.card p{margin:0;font-size:14.5px;color:var(--muted)}
.card h3{margin-bottom:9px}

/* ---------- Material-Chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 8px;padding:0;list-style:none}
.chips li{
  font-family:var(--mono);font-size:13px;letter-spacing:.6px;
  padding:6px 13px;border:1px solid var(--line);border-radius:2px;
  background:var(--surface);color:var(--text);
}
.chips.tech li{border-color:rgba(255,122,24,.35);background:rgba(255,122,24,.07);color:#ffc79b}

/* ---------- Prozess ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;counter-reset:s}
.step{position:relative;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r)}
.step::before{
  counter-increment:s;content:"0" counter(s);
  font-family:var(--mono);font-size:12px;color:var(--cyan);letter-spacing:2px;
  display:block;margin-bottom:12px;
}
.step h3{font-size:16.5px;margin-bottom:7px}
.step p{margin:0;font-size:14px;color:var(--muted)}

/* ============================================================
   KI-KENNZEICHNUNG
   ============================================================ */
figure.media{margin:0;position:relative;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface)}
figure.media>img,figure.media>svg{width:100%;height:auto;display:block}
/* Dezente Kennzeichnung: klein und zurückhaltend, auf Hover/Fokus deutlich.
   Der volle Hinweis steht im title-Attribut, in der Bildunterschrift und im Abschnitt
   „KI-Transparenz" — das Badge ist die kompakte Sichtmarke am Bild. */
.ai-badge{
  position:absolute;top:9px;right:9px;z-index:2;
  display:inline-grid;place-items:center;
  min-width:25px;height:21px;padding:0 7px;
  background:rgba(6,10,15,.5);backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.2);border-radius:3px;
  color:rgba(255,255,255,.7);
  font-family:var(--mono);font-size:10.5px;font-weight:700;letter-spacing:1.3px;
  line-height:1;cursor:help;user-select:none;transition:.18s;
}
.ai-badge:hover,.ai-badge:focus-visible{
  background:rgba(6,10,15,.92);border-color:var(--heat);color:#ffd2ad;outline:none;
}
figure.media figcaption.cap{
  padding:11px 14px;font-size:12.5px;color:var(--muted);border-top:1px solid var(--line);
  background:var(--bg-2);
}
/* Slot für noch fehlende Bilder */
.slot{
  aspect-ratio:16/10;display:grid;place-items:center;text-align:center;padding:24px;
  background:
    repeating-linear-gradient(45deg,rgba(34,48,63,.22) 0 12px,transparent 12px 24px),
    var(--surface);
  color:var(--muted-2);font-family:var(--mono);font-size:12.5px;letter-spacing:1.2px;
}

/* KI-Transparenz-Box */
.ai-note{
  border:1px solid rgba(255,122,24,.34);background:rgba(255,122,24,.055);
  border-left:3px solid var(--heat);border-radius:var(--r);padding:22px 26px;
}
.ai-note h3{color:#ffc79b;display:flex;align-items:center;gap:10px}
.ai-note h3 svg{width:20px;height:20px;stroke:var(--heat);fill:none;stroke-width:1.8}
.ai-note p:last-child{margin-bottom:0}

/* ============================================================
   GALERIE
   ============================================================ */
.gal-filter{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.gal-filter button{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  color:var(--muted);font-family:var(--font);font-size:13.5px;padding:8px 15px;cursor:pointer;transition:.16s;
}
.gal-filter button:hover{border-color:#31465c;color:var(--text)}
.gal-filter button.on{background:rgba(0,212,255,.1);border-color:var(--cyan);color:var(--cyan)}

.gal-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px}
.gal-item{
  background:linear-gradient(160deg,var(--surface),var(--bg-2));
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  display:flex;flex-direction:column;transition:.2s;
}
.gal-item:hover{border-color:#31465c;transform:translateY(-3px)}
.gal-thumb{position:relative;aspect-ratio:4/3;background:#05080c;overflow:hidden;cursor:zoom-in}
.gal-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:.35s}
.gal-item:hover .gal-thumb img{transform:scale(1.04)}
.gal-body{padding:17px 18px 19px;flex:1;display:flex;flex-direction:column}
.gal-body h3{font-size:16.5px;margin:0 0 7px}
.gal-body p{font-size:14px;color:var(--muted);margin:0 0 12px;flex:1}
.gal-meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.gal-meta span{
  font-family:var(--mono);font-size:11px;letter-spacing:.5px;padding:4px 9px;
  border:1px solid var(--line);border-radius:2px;color:var(--muted);background:var(--bg-2);
}
.gal-meta span.mat{border-color:rgba(0,212,255,.3);color:#9fe8ff;background:rgba(0,212,255,.06)}

/* Lightbox */
.lb{position:fixed;inset:0;z-index:120;background:rgba(4,7,11,.94);backdrop-filter:blur(8px);
  display:none;align-items:center;justify-content:center;padding:28px}
.lb.on{display:flex}
.lb-inner{max-width:1050px;width:100%;max-height:92vh;display:flex;flex-direction:column;gap:14px}
.lb-figure{position:relative;flex:1;min-height:0;display:flex;align-items:center;justify-content:center}
.lb-figure img{max-width:100%;max-height:74vh;object-fit:contain;border:1px solid var(--line);border-radius:var(--r)}
.lb-cap{color:var(--muted);font-size:14.5px;text-align:center}
.lb-cap b{display:block;color:#fff;font-size:17px;margin-bottom:5px}
.lb-close{position:absolute;top:18px;right:22px;background:transparent;border:1px solid var(--line);
  color:var(--text);width:42px;height:42px;border-radius:var(--r);font-size:20px;cursor:pointer;z-index:2}
.lb-close:hover{border-color:var(--cyan);color:var(--cyan)}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(6,10,15,.75);
  border:1px solid var(--line);color:var(--text);width:46px;height:60px;border-radius:var(--r);
  font-size:22px;cursor:pointer;z-index:2}
.lb-nav:hover{border-color:var(--cyan);color:var(--cyan)}
.lb-prev{left:6px}.lb-next{right:6px}

.gal-empty{
  border:1px dashed var(--line);border-radius:var(--r);padding:56px 26px;text-align:center;color:var(--muted);
  background:repeating-linear-gradient(45deg,rgba(34,48,63,.14) 0 12px,transparent 12px 24px);
}

/* ---------- CTA ---------- */
.cta{
  background:linear-gradient(135deg,rgba(0,212,255,.1),rgba(255,122,24,.08));
  border:1px solid var(--line);border-radius:var(--r);padding:52px 44px;text-align:center;
}
.cta h2{margin-bottom:12px}
.cta .lead{margin:0 auto 26px}

/* ---------- Formular ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field.full{grid-column:1/-1}
label{display:block;font-size:12.5px;letter-spacing:1.1px;text-transform:uppercase;color:var(--muted);margin-bottom:7px}
input,textarea,select{
  width:100%;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r);
  color:var(--text);font-family:var(--font);font-size:15px;padding:11px 13px;transition:.15s;
}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,212,255,.12)}
textarea{min-height:140px;resize:vertical}
.check{display:flex;gap:11px;align-items:flex-start;font-size:13.5px;color:var(--muted);text-transform:none;letter-spacing:0}
.check input{width:18px;height:18px;flex:0 0 auto;margin-top:2px;accent-color:var(--cyan)}

/* ---------- Info-Zeilen ---------- */
.info-list{list-style:none;margin:0;padding:0}
.info-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.info-list li:last-child{border-bottom:0}
.info-list b{flex:0 0 130px;color:var(--muted);font-weight:500;font-size:13.5px}

/* ---------- Textseiten (Impressum/Datenschutz) ---------- */
.doc{max-width:78ch}
.doc h2{font-size:24px;margin-top:44px}
.doc h3{font-size:17px;margin-top:28px;color:var(--cyan)}
.doc p,.doc li{color:var(--muted);font-size:15px}
.doc strong{color:var(--text)}
.doc ul{padding-left:20px}
.doc li{margin-bottom:7px}

/* ---------- Footer ---------- */
footer.site{border-top:1px solid var(--line);background:var(--bg-2);padding:56px 0 30px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px;margin-bottom:38px}
footer.site h4{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--muted-2);margin:0 0 15px}
footer.site ul{list-style:none;margin:0;padding:0}
footer.site li{margin-bottom:9px}
footer.site a{color:var(--muted);font-size:14.5px}
footer.site a:hover{color:var(--cyan)}
.foot-bottom{
  border-top:1px solid var(--line);padding-top:22px;display:flex;gap:16px;flex-wrap:wrap;
  align-items:center;font-size:13px;color:var(--muted-2);
}
.foot-bottom .sep{margin-left:auto}

/* ---------- Utilities ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.stack-sm>*+*{margin-top:14px}
.center{text-align:center}
.mt-0{margin-top:0}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  /* iOS-Safari zoomt beim Fokussieren von Feldern unter 16px Schriftgröße
     automatisch in die Seite — deshalb auf Mobilgeräten exakt 16px. */
  input,select,textarea{font-size:16px}
  .hero-grid,.split,.form-grid{grid-template-columns:1fr;gap:34px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  section{padding:64px 0}
  .hero{padding:60px 0 56px}
  nav.main{
    position:fixed;inset:74px 0 auto 0;background:var(--bg-2);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:10px 16px 18px;display:none;
  }
  nav.main.open{display:flex}
  nav.main a{padding:13px 10px;border-bottom:1px solid var(--line-soft)}
  .navtoggle{display:block}
  .cta{padding:38px 24px}
}
@media(max-width:560px){
  .foot-grid{grid-template-columns:1fr}
  .hero-facts{gap:20px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}