/* AUTONOM – Robotik & Industrieautomation (fiktives Demo-Projekt)
   Dunkles Industrie-Tech-Design. Shared stylesheet. */

:root{
  --bg:#0b0e12;
  --bg-2:#0f141b;
  --panel:#121924;
  --panel-2:#0e1620;
  --line:#1e2a38;
  --line-2:#2a3a4d;
  --ink:#e7edf5;
  --muted:#8a99ad;
  --muted-2:#61708650;
  --blue:#38bdf8;
  --blue-deep:#0ea5e9;
  --steel:#7d8ca3;
  --steel-2:#455163;
  --ok:#34d399;
  --radius:14px;
  --maxw:1200px;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --display:'Space Grotesk','Inter',system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--display);line-height:1.1;font-weight:600;letter-spacing:-.02em;margin:0}
p{margin:0 0 1rem}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:4px}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(1.1rem,4vw,2rem)}
.eyebrow{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--blue);display:inline-flex;align-items:center;gap:.6rem;margin:0 0 1rem;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--blue);display:inline-block;opacity:.7}
.section{padding-block:clamp(3.5rem,8vw,6rem);position:relative}
.section--alt{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.lead{color:var(--muted);font-size:1.08rem;max-width:56ch}

/* grid background motif */
.gridfx{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.gridfx::before{
  content:"";position:absolute;inset:-2px;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:52px 52px;opacity:.35;
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%,#000 25%,transparent 75%);
          mask-image:radial-gradient(120% 90% at 50% 0%,#000 25%,transparent 75%);
}
.scanline{
  position:absolute;left:0;right:0;height:2px;top:0;z-index:0;
  background:linear-gradient(90deg,transparent,var(--blue),transparent);
  opacity:.5;animation:scan 7s linear infinite;
}
@keyframes scan{0%{transform:translateY(0)}100%{transform:translateY(min(600px,60vh))}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(10px);
  background:rgba(11,14,18,.72);
  border-bottom:1px solid transparent;
  transition:border-color .3s,background .3s;
}
.site-header.scrolled{border-bottom-color:var(--line);background:rgba(11,14,18,.9)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:1rem}
.brand{display:flex;align-items:center;gap:.7rem;font-family:var(--display);font-weight:600;font-size:1.15rem;letter-spacing:-.01em}
.brand .dot{
  width:26px;height:26px;border-radius:7px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--blue-deep));color:#04121c;
  font-family:var(--mono);font-size:.85rem;font-weight:700;box-shadow:0 0 18px rgba(56,189,248,.4);
}
.brand small{display:block;font-family:var(--mono);font-size:.58rem;letter-spacing:.24em;color:var(--muted);text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:.35rem;list-style:none;margin:0;padding:0}
.nav-links a{
  font-size:.92rem;color:var(--muted);padding:.5rem .8rem;border-radius:8px;transition:color .2s,background .2s;
}
.nav-links a:hover{color:var(--ink);background:#ffffff08}
.nav-links a.active{color:var(--blue)}
.nav-cta{
  font-family:var(--mono);font-size:.8rem;letter-spacing:.04em;
  border:1px solid var(--line-2);padding:.55rem 1rem;border-radius:9px;color:var(--ink);
  transition:border-color .2s,box-shadow .2s,color .2s;
}
.nav-cta:hover{border-color:var(--blue);box-shadow:0 0 0 1px var(--blue),0 0 18px rgba(56,189,248,.25);color:var(--blue)}
.hamburger{display:none;background:none;border:1px solid var(--line-2);border-radius:9px;width:44px;height:40px;cursor:pointer}
.hamburger span{display:block;width:20px;height:2px;background:var(--ink);margin:4px auto;transition:.25s}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;font-family:var(--mono);font-size:.85rem;letter-spacing:.03em;
  padding:.8rem 1.35rem;border-radius:10px;border:1px solid transparent;cursor:pointer;transition:.22s;
}
.btn--primary{background:linear-gradient(135deg,var(--blue),var(--blue-deep));color:#04121c;font-weight:700;box-shadow:0 6px 24px rgba(56,189,248,.28)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(56,189,248,.42)}
.btn--ghost{border-color:var(--line-2);color:var(--ink)}
.btn--ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn .arw{transition:transform .22s}
.btn:hover .arw{transform:translateX(4px)}

/* ---------- Hero (kompakt) ---------- */
.hero{position:relative;padding-block:clamp(2.5rem,6vw,4.5rem);border-bottom:1px solid var(--line)}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(1.5rem,4vw,3rem);align-items:center}
.hero h1{font-size:clamp(2.2rem,5.4vw,3.7rem);margin-bottom:1rem}
.hero h1 .accent{color:var(--blue)}
.hero .lead{font-size:1.12rem;margin-bottom:1.6rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-bottom:1.6rem}
.hero-chips{display:flex;flex-wrap:wrap;gap:.5rem;list-style:none;margin:0;padding:0}
.chip{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.05em;color:var(--muted);
  border:1px solid var(--line);padding:.35rem .7rem;border-radius:100px;background:#ffffff05;
}
.chip b{color:var(--blue);font-weight:600}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--radius);border:1px solid var(--line-2);filter:contrast(1.05) saturate(1.05);box-shadow:0 30px 70px -30px #000}
.hero-visual .tag{
  position:absolute;bottom:14px;left:14px;font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;
  background:rgba(11,14,18,.8);border:1px solid var(--line-2);padding:.4rem .7rem;border-radius:8px;color:var(--blue);
  backdrop-filter:blur(4px);
}
.hero-visual::after{
  content:"";position:absolute;inset:-1px;border-radius:var(--radius);pointer-events:none;
  background:linear-gradient(135deg,rgba(56,189,248,.25),transparent 40%);mix-blend-mode:screen;
}

/* ---------- Stats bar ---------- */
.statbar{border-block:1px solid var(--line);background:var(--panel-2)}
.statbar .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;padding-inline:0}
.stat{padding:1.6rem clamp(1.1rem,3vw,2rem)}
.stat .num{font-family:var(--display);font-size:clamp(1.8rem,3.6vw,2.6rem);font-weight:600;color:var(--ink)}
.stat .num .u{color:var(--blue)}
.stat .lbl{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-top:.3rem}
.stat+.stat{border-left:1px solid var(--line)}

/* ---------- Section head ---------- */
.shead{max-width:640px;margin-bottom:2.5rem}
.shead h2{font-size:clamp(1.7rem,3.6vw,2.5rem);margin-bottom:.8rem}

/* ---------- Solution grid ---------- */
.grid{display:grid;gap:1.1rem}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.card{
  position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.6rem;transition:transform .25s,border-color .25s,box-shadow .25s;overflow:hidden;
}
.card::before{content:"";position:absolute;left:0;top:0;height:100%;width:2px;background:var(--blue);transform:scaleY(0);transform-origin:top;transition:transform .3s}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 20px 40px -24px #000}
.card:hover::before{transform:scaleY(1)}
.card .ic{
  width:44px;height:44px;border-radius:10px;display:grid;place-items:center;margin-bottom:1rem;
  background:#38bdf815;border:1px solid #38bdf833;color:var(--blue);
}
.card .ic svg{width:22px;height:22px}
.card .kx{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;color:var(--steel);text-transform:uppercase}
.card h3{font-size:1.2rem;margin:.5rem 0 .55rem}
.card p{color:var(--muted);font-size:.95rem;margin:0}
.card ul{margin:.9rem 0 0;padding:0;list-style:none}
.card ul li{font-size:.88rem;color:var(--muted);padding-left:1.1rem;position:relative;margin-bottom:.35rem}
.card ul li::before{content:"›";position:absolute;left:0;color:var(--blue)}

/* ---------- Spec table ---------- */
.spectable{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel-2)}
.spectable table{width:100%;border-collapse:collapse;font-family:var(--mono);font-size:.86rem}
.spectable caption{
  text-align:left;padding:1rem 1.3rem;font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--steel);border-bottom:1px solid var(--line);background:#ffffff04;
}
.spectable th,.spectable td{padding:.85rem 1.3rem;text-align:left;border-bottom:1px solid var(--line)}
.spectable thead th{color:var(--blue);font-weight:600;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase}
.spectable tbody tr:last-child td{border-bottom:none}
.spectable tbody tr:hover{background:#38bdf80a}
.spectable td:first-child{color:var(--ink)}
.spectable td:not(:first-child){color:var(--muted)}
.spectable .val{color:var(--blue)!important;font-weight:600}

/* ---------- Process steps ---------- */
.steps{counter-reset:step;display:grid;gap:1rem}
.steps--4{grid-template-columns:repeat(4,1fr)}
.step{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem 1.4rem}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--mono);font-size:.8rem;color:var(--blue);display:block;margin-bottom:.7rem;letter-spacing:.1em;
}
.step h3{font-size:1.08rem;margin-bottom:.4rem}
.step p{color:var(--muted);font-size:.9rem;margin:0}

/* ---------- Badges (Branchen) ---------- */
.badges{display:flex;flex-wrap:wrap;gap:.6rem}
.badge{
  font-family:var(--mono);font-size:.8rem;letter-spacing:.03em;color:var(--ink);
  border:1px solid var(--line-2);background:var(--panel);padding:.6rem 1rem;border-radius:100px;transition:.2s;
}
.badge:hover{border-color:var(--blue);color:var(--blue);background:#38bdf80d}
.badge span{color:var(--steel)}

/* ---------- Split / feature rows ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3rem);align-items:center}
.split img{border-radius:var(--radius);border:1px solid var(--line-2);box-shadow:0 30px 70px -34px #000}
.featlist{list-style:none;margin:1.2rem 0 0;padding:0}
.featlist li{display:flex;gap:.8rem;padding:.7rem 0;border-bottom:1px solid var(--line)}
.featlist li:last-child{border-bottom:none}
.featlist .k{font-family:var(--mono);color:var(--blue);font-size:.8rem;min-width:38px}
.featlist .t b{display:block;margin-bottom:.15rem}
.featlist .t span{color:var(--muted);font-size:.92rem}

/* ---------- ROI hint ---------- */
.roi{
  border:1px solid var(--line-2);border-radius:var(--radius);background:
    radial-gradient(120% 140% at 100% 0%,#38bdf814,transparent 55%),var(--panel);
  padding:clamp(1.6rem,4vw,2.4rem);display:grid;grid-template-columns:1.4fr 1fr;gap:2rem;align-items:center;
}
.roi h3{font-size:1.5rem;margin-bottom:.6rem}
.roi p{color:var(--muted);margin:0}
.roi .metric{text-align:center;border-left:1px solid var(--line)}
.roi .metric .big{font-family:var(--display);font-size:2.8rem;color:var(--blue);font-weight:600;line-height:1}
.roi .metric small{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}

/* ---------- CTA band ---------- */
.cta{position:relative;overflow:hidden;border-radius:var(--radius);border:1px solid var(--line-2);
  background:radial-gradient(120% 160% at 0% 0%,#0ea5e91f,transparent 50%),var(--panel);padding:clamp(2rem,5vw,3.2rem)}
.cta h2{font-size:clamp(1.6rem,3.6vw,2.4rem);margin-bottom:.7rem}
.cta p{color:var(--muted);max-width:52ch}
.cta .hero-actions{margin-top:1.4rem;margin-bottom:0}

/* ---------- Reference cards ---------- */
.ref{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;transition:.25s;overflow:hidden}
.ref:hover{border-color:var(--line-2);transform:translateY(-4px)}
.ref .meta{display:flex;justify-content:space-between;align-items:center;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;color:var(--steel);text-transform:uppercase;margin-bottom:1rem}
.ref .meta .yr{color:var(--blue)}
.ref h3{font-size:1.25rem;margin-bottom:.5rem}
.ref p{color:var(--muted);font-size:.92rem;margin:0 0 1rem}
.ref .kpis{display:flex;gap:1.3rem;border-top:1px solid var(--line);padding-top:1rem}
.ref .kpis div .n{font-family:var(--display);font-size:1.25rem;color:var(--ink)}
.ref .kpis div .l{font-family:var(--mono);font-size:.64rem;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}

/* ---------- Form ---------- */
.formwrap{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3rem)}
.form{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.5rem,4vw,2.2rem)}
.field{margin-bottom:1.1rem}
.field label{display:block;font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:.45rem}
.field label .req{color:var(--blue)}
.field input,.field select,.field textarea{
  width:100%;background:var(--panel-2);border:1px solid var(--line-2);border-radius:10px;color:var(--ink);
  font-family:var(--sans);font-size:.95rem;padding:.75rem .9rem;transition:border-color .2s,box-shadow .2s;
}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px #38bdf82a}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2338bdf8'%3E%3Cpath d='M2 4l4 4 4-4z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.4rem}
.hp{position:absolute;left:-9999px}
.formnote{font-size:.8rem;color:var(--muted);margin-top:.6rem}
.formstatus{font-family:var(--mono);font-size:.85rem;margin-top:1rem;min-height:1.2em}
.formstatus.ok{color:var(--ok)}
.formstatus.err{color:#fb7185}
.contact-aside .infoblock{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel-2);padding:1.3rem 1.4rem;margin-bottom:1rem}
.contact-aside .infoblock .k{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--steel);margin-bottom:.3rem}
.contact-aside .infoblock .v{font-size:1.05rem}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--panel-2);margin-top:2rem}
.site-footer .wrap{padding-block:2.6rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem;margin-bottom:2rem}
.foot-grid p{color:var(--muted);font-size:.92rem;max-width:36ch}
.foot-col h4{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--steel);margin-bottom:.9rem}
.foot-col a{display:block;color:var(--muted);font-size:.92rem;padding:.25rem 0;transition:color .2s}
.foot-col a:hover{color:var(--blue)}
.foot-bottom{border-top:1px solid var(--line);padding-top:1.4rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;align-items:center}
.foot-bottom p{margin:0;color:var(--muted);font-size:.85rem}
.foot-bottom .mono{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;color:var(--steel)}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
.reveal[data-d="4"]{transition-delay:.32s}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero .wrap{grid-template-columns:1fr}
  .hero-visual{order:-1}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .steps--4{grid-template-columns:repeat(2,1fr)}
  .statbar .wrap{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:none}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--line)}
  .roi{grid-template-columns:1fr}
  .roi .metric{border-left:none;border-top:1px solid var(--line);padding-top:1.4rem}
  .split{grid-template-columns:1fr}
  .split .split-media{order:-1}
  .formwrap{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .nav-links{
    position:fixed;inset:68px 0 auto 0;flex-direction:column;align-items:stretch;gap:.2rem;
    background:rgba(11,14,18,.98);border-bottom:1px solid var(--line);padding:1rem clamp(1.1rem,4vw,2rem) 1.4rem;
    transform:translateY(-140%);transition:transform .3s;box-shadow:0 24px 40px -24px #000;
  }
  .nav-links.open{transform:none}
  .nav-links a{padding:.8rem .5rem;font-size:1rem;border-bottom:1px solid var(--line)}
  .nav-links .nav-cta{margin-top:.6rem;text-align:center}
  .hamburger{display:block}
  .grid--3,.grid--2,.steps--4{grid-template-columns:1fr}
  .statbar .wrap{grid-template-columns:1fr}
  .stat{border-left:none!important}
  .stat+.stat{border-top:1px solid var(--line)}
  .foot-grid{grid-template-columns:1fr}
  .spectable{overflow-x:auto}
}