/* X-Tech Water System – gemeinsames Stylesheet, Design-System 1:1 aus Website_Robotics übernommen.
   Alle Farben als Variablen in :root, damit der Look später zentral nachgezogen werden kann. */

@font-face{font-family:'Inter';src:url('../fonts/inter_4.woff2') format('woff2');font-weight:400 700;font-display:swap}
@font-face{font-family:'Space Grotesk';src:url('../fonts/grotesk_3.woff2') format('woff2');font-weight:500 700;font-display:swap}

:root{
  --bg:#05080F;--surface:rgba(255,255,255,.035);--line:rgba(255,255,255,.09);--line2:rgba(255,255,255,.14);
  --ink:#EAF1FA;--mut:#9BAAC1;--mut2:#8595AC;--cyan:#22D3EE;--cyan2:#38BDF8;--gold:#F5C99B;
  --glow:0 0 40px rgba(34,211,238,.35);
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--bg)}
body{font-size:16.5px;background:var(--bg);color:var(--ink);font-family:'Inter',system-ui,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:min(1760px,94vw);margin:0 auto;padding:0 24px}

/* Header */
header{position:sticky;top:0;z-index:50;background:rgba(5,8,15,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:30px;min-height:132px;padding:10px 0}
.navrow{border-top:1px solid var(--line);background:rgba(255,255,255,.02)}
.navrow .wrap{display:flex;justify-content:center}
.navrow .navlinks{display:flex;gap:34px;font-size:14px;color:var(--mut);padding:12px 0;flex-wrap:wrap;justify-content:center}
.navlinks a:hover{color:var(--ink)}
.navlinks a.on{color:var(--cyan)}
@media(max-width:760px){.navrow .navlinks{gap:16px;font-size:12.5px}.nav{min-height:78px;gap:12px}.nav .cta{font-size:12.5px;padding:9px 12px}}
@media(max-width:700px){.navrow .wrap{justify-content:flex-start}.navrow .navlinks{flex-wrap:nowrap;justify-content:flex-start;overflow-x:auto;white-space:nowrap;gap:20px;font-size:13.5px;padding:12px 2px;scrollbar-width:none;-webkit-overflow-scrolling:touch}.navrow .navlinks::-webkit-scrollbar{display:none}.navrow .navlinks a{padding:4px 0}}

.brand{display:flex;align-items:center;gap:18px;text-decoration:none}
.brand img{height:96px;width:auto;filter:drop-shadow(0 0 22px rgba(34,211,238,.5))}
.brand .bt{display:flex;flex-direction:column;line-height:1}
.brand b{font-family:'Space Grotesk';font-size:32px;font-weight:700;letter-spacing:1.4px;
  background:linear-gradient(180deg,#fff 20%,#a8bccf 56%,#eef6ff 100%);-webkit-background-clip:text;
  background-clip:text;color:transparent;white-space:nowrap}
.brand b i{font-style:normal;background:linear-gradient(180deg,#8aeaff,#22D3EE 58%,#0c9fbd);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.brand small{font-size:11.5px;letter-spacing:4px;color:#8fa3bb;margin-top:8px;font-weight:600;white-space:nowrap}
@media(max-width:1000px){.brand img{height:64px}.brand b{font-size:22px}.brand small{font-size:9.5px;letter-spacing:3px}.nav{min-height:96px}}
@media(max-width:620px){.brand img{height:48px}.brand b{font-size:17px}.brand small{display:none}.nav{min-height:72px}}

.hbtns{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.cta{background:linear-gradient(135deg,var(--cyan),var(--cyan2));color:#04121b;font-weight:600;font-size:14px;padding:10px 18px;border-radius:10px;box-shadow:var(--glow);display:inline-block}
.cta.ghost{background:none;border:1px solid var(--line2);color:var(--mut);box-shadow:none}
.cta.ghost:hover{color:var(--ink);border-color:var(--cyan)}
@media(max-width:900px){.hbtns .cta{font-size:12.5px;padding:9px 12px}}
@media(max-width:480px){.nav{flex-wrap:wrap;row-gap:8px}.hbtns{width:100%;justify-content:flex-end}}

a:focus-visible,button:focus-visible{outline:3px solid var(--cyan);outline-offset:3px;border-radius:8px}

/* Hero */
.hero{padding:56px 0 26px;position:relative;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:-40% -20% auto;height:150%;background:radial-gradient(ellipse at 50% 0%,rgba(34,211,238,.15),transparent 60%);pointer-events:none}
.hero .wrap{position:relative;z-index:2}
.hero .kick{color:var(--cyan);font-size:12px;font-weight:600;letter-spacing:2.4px;text-transform:uppercase}
.hero h1{font-family:'Space Grotesk';font-size:clamp(30px,4.6vw,50px);letter-spacing:-.6px;margin:8px 0 12px;max-width:840px}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero p{color:var(--mut);max-width:700px;font-size:16.5px}
.claim{margin:26px 0 4px;font-family:'Space Grotesk';font-size:clamp(17px,2vw,23px);font-weight:600;letter-spacing:.3px;color:var(--ink);line-height:1.5}
.claim .g{color:var(--gold)}
.claim .c{color:var(--cyan)}
.stats{display:flex;gap:44px;flex-wrap:wrap;margin-top:30px}
.stats b{font-family:'Space Grotesk';font-size:27px;color:var(--cyan);display:block;line-height:1.15}
.stats span{font-size:12.5px;color:var(--mut2)}
.herobtns{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.herobtns .btn{padding:11px 20px}
.btn{font-size:13px;font-weight:600;color:var(--cyan);border:1px solid rgba(34,211,238,.45);padding:7px 14px;border-radius:9px;transition:.15s;background:none;cursor:pointer;font-family:inherit;display:inline-block}
.btn:hover{background:rgba(34,211,238,.12)}

/* Sections */
.sec{padding:70px 0}
.sec h2{font-family:'Space Grotesk';font-size:clamp(24px,3.4vw,38px);margin-bottom:10px}
.sec h2 em{font-style:normal;color:var(--cyan)}
.sec .lead{color:var(--mut);max-width:780px;font-size:17px;line-height:1.7;margin-bottom:30px}
.sec.alt{background:#070b14;border-block:1px solid var(--line)}

.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:900px){.cards3{grid-template-columns:1fr}}
.tile{background:#0A101C;border:1px solid var(--line);border-radius:16px;padding:26px 24px;transition:.2s;position:relative;overflow:hidden}
.tile:hover{border-color:var(--cyan);transform:translateY(-3px);box-shadow:0 12px 40px rgba(34,211,238,.12)}
.tile .num{font-family:'Space Grotesk';font-size:12px;color:var(--cyan);letter-spacing:2px}
.tile h3{font-family:'Space Grotesk';font-size:21px;margin:8px 0 4px}
.tile .en{font-size:11.5px;color:var(--mut2);letter-spacing:1.6px;text-transform:uppercase;margin-bottom:10px}
.tile p{color:var(--mut);font-size:15.5px;line-height:1.65}
.tile a.more{display:inline-block;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--cyan)}
.tile img{border-radius:10px;margin-bottom:14px;aspect-ratio:16/10;object-fit:cover;width:100%}

.split{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:26px}}
.split img{border-radius:16px;border:1px solid var(--line);width:100%;object-fit:cover}
.ulist{list-style:none;margin-top:18px}
.ulist li{padding:10px 0 10px 30px;position:relative;color:var(--mut);font-size:16px}
.ulist li::before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:700}
.ulist b{color:var(--ink)}

.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:1100px){.facts{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.facts{grid-template-columns:1fr}}
.fact{background:#0A101C;border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.fact b{display:block;font-family:'Space Grotesk';font-size:14.5px;color:var(--ink);margin-bottom:6px}
.fact p{color:var(--mut);font-size:14.5px;line-height:1.6}

.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.step{background:#0A101C;border:1px solid var(--line);border-radius:14px;padding:22px}
.step .n{width:34px;height:34px;border-radius:50%;background:rgba(34,211,238,.14);border:1px solid rgba(34,211,238,.45);color:var(--cyan);display:flex;align-items:center;justify-content:center;font-weight:700;font-family:'Space Grotesk';margin-bottom:12px}
.step h4{font-family:'Space Grotesk';font-size:17px;margin-bottom:5px}
.step p{color:var(--mut);font-size:15.5px;line-height:1.6}

.highlight{background:linear-gradient(135deg,rgba(34,211,238,.10),rgba(245,201,155,.06));border:1px solid var(--line2);border-radius:20px;padding:36px 34px}
.ctabox{background:#0A101C;border:1px solid var(--line2);border-radius:20px;padding:44px 38px;text-align:center}
.ctabox h2{margin-bottom:8px}
.ctabox.left{text-align:left}

/* FAQ */
.faqlist{max-width:820px}
.faqitem{border:1px solid var(--line);border-radius:14px;background:#0A101C;padding:20px 24px;margin-bottom:14px}
.faqitem h3{font-family:'Space Grotesk';font-size:18px;color:var(--ink);margin-bottom:8px}
.faqitem p{color:var(--mut);font-size:15.5px;line-height:1.65}

/* Kontakt */
.kontaktgrid{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:760px}
@media(max-width:640px){.kontaktgrid{grid-template-columns:1fr}}
.kbtn{display:flex;flex-direction:column;gap:6px;background:#0A101C;border:1px solid var(--line2);border-radius:16px;padding:26px 24px;transition:.2s}
.kbtn:hover{border-color:var(--cyan);transform:translateY(-2px)}
.kbtn .kl{font-size:11.5px;letter-spacing:1.6px;text-transform:uppercase;color:var(--mut2)}
.kbtn .kv{font-family:'Space Grotesk';font-size:21px;color:var(--cyan)}
.adresse{margin-top:34px;color:var(--mut);font-size:15.5px;line-height:1.8}
.adresse b{color:var(--ink)}

/* Partner */
.partnerbox{display:flex;align-items:center;justify-content:center;gap:20px;background:#fff;border-radius:16px;padding:22px 30px;max-width:420px}
.partnerbox img{max-width:100%;height:auto}

/* Legal pages */
.legal{padding:52px 0 70px}
.legal .wrap{max-width:900px}
.legal h1{font-family:'Space Grotesk';font-size:clamp(26px,3.4vw,38px);margin-bottom:18px}
.legal h3{font-family:'Space Grotesk';font-size:17px;color:var(--cyan);margin:26px 0 6px}
.legal p{color:var(--mut);font-size:14.5px;line-height:1.75;margin:10px 0}
.legal a{color:var(--mut);text-decoration:underline}
.legal a:hover{color:var(--cyan)}

/* Reveal-Animation */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none;transition:none}#fx{display:none}}

/* Partikel-Canvas (dezent, abschaltbar) */
#fx{position:fixed;inset:0;width:100vw;height:100vh;pointer-events:none;z-index:0}
body>header,body>main,body>section,body>footer{position:relative;z-index:1}

/* Footer */
footer{border-top:1px solid var(--line);padding:34px 0 40px;color:var(--mut2);font-size:12.5px;text-align:center;line-height:1.9}
footer a{color:var(--mut)}
footer a:hover{color:var(--cyan)}
footer .fnav{margin-top:6px}

/* 404 */
.notfound{min-height:52vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:60px 24px}
.notfound .big{font-family:'Space Grotesk';font-size:clamp(48px,10vw,110px);color:var(--cyan);line-height:1}
.notfound p{color:var(--mut);margin:14px 0 24px;max-width:460px}