/* ============================================================
   XBUN · xbun.de · style.css · v3
   Fonts: Space Grotesk (Wortmarke, Headlines) + Inter (Text, UI)
   Basis: tiefes Schwarz, Akzent Neon-Lime, dünne Linien
   ============================================================ */

:root{
  --black:#000000;
  --surface:#0A0A0A;
  --surface-2:#121212;
  --surface-3:#1A1A1A;
  --line:rgba(255,255,255,.13);
  --line-soft:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.30);
  --lime:#D5FC09;
  --lime-dim:#AFCE07;
  --lime-glow:rgba(213,252,9,.35);
  --white:#FFFFFF;
  --text:#B8BBB2;
  --text-strong:#E6E8E2;
  --muted:#83877D;
  --radius:3px;
  --maxw:1280px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--black)}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  font-size:18px;
  font-weight:400;
  line-height:1.75;
  color:var(--text);
  background:var(--black);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block}
a{color:var(--lime);text-decoration:none}
a:hover{text-decoration:underline}

/* Fließtext-Links auch ohne Farbe erkennbar */
.prose p a:not(.btn),
.prose li a,
.prose dd a,
.svc p a,
.cta-inner p a{
  text-decoration:underline;
  text-decoration-thickness:1.5px;
  text-underline-offset:3px;
  text-decoration-color:rgba(213,252,9,.5);
}
.prose p a:not(.btn):hover,
.prose li a:hover,
.prose dd a:hover,
.cta-inner p a:hover{
  text-decoration-color:currentColor;
  color:var(--white);
}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--lime);outline-offset:4px;border-radius:2px;
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}

/* ---------- Typografie ---------- */
h1,h2,h3,h4{font-family:'Space Grotesk',sans-serif;color:var(--white);font-weight:600}
h1{
  font-size:clamp(28px,3.4vw,42px);
  line-height:1.1;
  letter-spacing:-.03em;
  font-weight:500;
}
h2{
  font-size:clamp(30px,4.6vw,56px);
  text-wrap:balance;
  line-height:1.02;
  letter-spacing:-.035em;
  margin-bottom:24px;
  text-transform:uppercase;
}
h3{
  font-size:clamp(20px,2.2vw,26px);
  line-height:1.25;
  letter-spacing:-.015em;
  margin-bottom:12px;
}
h4{font-size:18px;letter-spacing:-.01em;margin-bottom:8px}
p{margin-bottom:20px}
p:last-child{margin-bottom:0}
strong{color:var(--text-strong);font-weight:600}
.lime{color:var(--lime)}

.eyebrow{
  display:inline-flex;align-items:center;gap:14px;
  font-family:'Inter',sans-serif;font-size:12px;font-weight:600;
  letter-spacing:.22em;text-transform:uppercase;color:var(--lime);
  margin-bottom:26px;
}
.eyebrow::before{content:"";width:38px;height:1px;background:var(--lime)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;
  font-family:'Inter',sans-serif;font-weight:600;font-size:15px;
  letter-spacing:.04em;
  line-height:1;padding:19px 32px;border-radius:var(--radius);
  border:0;cursor:pointer;text-decoration:none;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--lime);color:#000}
.btn-primary:hover{background:var(--white);box-shadow:0 0 34px rgba(213,252,9,.30)}
.btn-ghost{
  background:transparent;color:var(--white);
  border:1px solid var(--line-strong);
}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime)}
.arrow::after{content:" \2197";font-weight:600}
.arrow-r::after{content:" \2192";font-weight:600}

/* ---------- Header / Navigation ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(0,0,0,.62);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
}
.nav{
  max-width:var(--maxw);margin:0 auto;padding:0 32px;
  height:84px;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.logo{display:inline-flex;align-items:center;gap:16px;line-height:0}
.logo:hover{text-decoration:none}
.logo-tags{
  font-family:'Inter',sans-serif;font-size:9px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);line-height:1.7;text-align:left;white-space:nowrap;
  padding-left:16px;border-left:1px solid var(--line);
}
.site-header .logo img{
  height:26px;width:auto;display:block;
  animation:logo-glitch 11s infinite;
}
@keyframes logo-glitch{
  0%, 93%{
    transform:translateX(0);
    filter:drop-shadow(0 0 0 rgba(213,252,9,0)) drop-shadow(0 0 0 rgba(255,255,255,0));
    clip-path:inset(-3px);
  }
  93.4%{
    transform:translateX(1.5px);
    filter:drop-shadow(-2px 0 0 rgba(213,252,9,.9)) drop-shadow(0 0 0 rgba(255,255,255,0));
    clip-path:inset(-3px);
  }
  94%{
    transform:translateX(-2px) skewX(-3deg);
    filter:drop-shadow(2px 0 0 rgba(213,252,9,.85)) drop-shadow(-2px 0 0 rgba(255,255,255,.4));
    clip-path:inset(-3px 0 44% 0);
  }
  94.6%{
    transform:translateX(1px) skewX(0deg);
    filter:drop-shadow(-1.5px 0 0 rgba(213,252,9,.7)) drop-shadow(0 0 0 rgba(255,255,255,0));
    clip-path:inset(38% 0 -3px 0);
  }
  95.2%{
    transform:translateX(-.5px) skewX(1.5deg);
    filter:drop-shadow(1px 0 0 rgba(213,252,9,.5)) drop-shadow(0 0 0 rgba(255,255,255,0));
    clip-path:inset(-3px);
  }
  95.8%, 100%{
    transform:translateX(0);
    filter:drop-shadow(0 0 0 rgba(213,252,9,0)) drop-shadow(0 0 0 rgba(255,255,255,0));
    clip-path:inset(-3px);
  }
}
.nav-links{display:flex;align-items:center;gap:36px;list-style:none}
.nav-links a{
  font-family:'Inter',sans-serif;font-size:13px;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--text-strong);
  border-bottom:2px solid transparent;padding-bottom:6px;
  transition:border-color .15s ease,color .15s ease;
}
.nav-links a:hover{color:var(--white);border-bottom-color:var(--white);text-decoration:none}
.nav-links a.active{color:var(--white);border-bottom-color:var(--lime)}

.caret{
  display:inline-block;width:7px;height:7px;margin:0 0 2px 6px;
  border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg);transition:transform .15s ease;
}
.has-sub:hover .caret,
.has-sub:focus-within .caret{transform:rotate(225deg);margin-bottom:-2px}

/* Subnavigation Leistungen */
.has-sub{position:relative;padding:30px 0}
.subnav{
  display:none;position:absolute;top:100%;left:50%;
  transform:translateX(-50%);
  min-width:300px;list-style:none;
  background:#0B0B0B;border:1px solid var(--line);
  border-radius:var(--radius);padding:10px;
  box-shadow:0 26px 60px rgba(0,0,0,.8);
}
.has-sub:hover .subnav,
.has-sub:focus-within .subnav{display:block}
.subnav li{margin:0}
.subnav a{
  display:block;padding:12px 18px;
  text-transform:none;letter-spacing:.01em;font-size:15px;font-weight:500;
  color:var(--text-strong);
  border-bottom:2px solid transparent;
}
.subnav a:hover{background:rgba(255,255,255,.05);color:var(--white);border-bottom-color:var(--white)}
.subnav a.active{color:var(--lime);border-bottom-color:var(--lime)}

.nav-cta{
  font-family:'Inter',sans-serif;font-size:13px;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--black);
  background:var(--lime);border-radius:var(--radius);
  padding:14px 24px;white-space:nowrap;
}
.nav-cta:hover{background:var(--white);text-decoration:none}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{
  display:block;width:26px;height:2px;background:#fff;margin:6px 0;
  border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- Hero Startseite ---------- */
.hero{
  position:relative;
  background:var(--black);
  color:#fff;
  overflow:hidden;
  margin-top:-84px;
  padding-top:84px;
  min-height:min(94vh,940px);
  display:flex;align-items:center;
}
.hero-img{
  position:absolute;right:0;top:0;bottom:0;z-index:1;
  width:72%;pointer-events:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.25) 22%,rgba(0,0,0,.75) 48%,#000 70%);
  mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.25) 22%,rgba(0,0,0,.75) 48%,#000 70%);
}
.hero-img img{width:100%;height:100%;object-fit:cover;object-position:right center}
.hero-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,.45) 0%,rgba(0,0,0,0) 35%,rgba(0,0,0,.35) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  width:100%;
  max-width:var(--maxw);margin:0 auto;padding:120px 32px 130px;
}
.claim{
  font-family:'Space Grotesk',sans-serif;
  font-weight:700;
  font-size:clamp(54px,9.5vw,124px);
  line-height:.88;
  letter-spacing:-.05em;
  text-transform:uppercase;
  color:var(--white);
  margin-bottom:34px;
}
.hero h1{
  max-width:19ch;
  color:var(--text-strong);
  font-weight:400;
  margin-bottom:26px;
}
.hero-sub{
  font-size:clamp(17px,1.6vw,19px);max-width:46ch;
  color:var(--muted);margin-bottom:44px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:74px}
.hero-geo{
  font-size:12px;letter-spacing:.18em;color:var(--muted);
  text-transform:uppercase;line-height:1.9;
  padding-left:18px;border-left:1px solid var(--line);
}

/* ---------- Subhero (Unterseiten) ---------- */
.subhero{
  background:var(--black);color:#fff;
  margin-top:-84px;padding-top:84px;
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line-soft);
}
.subhero::before{
  content:"";position:absolute;top:0;right:0;bottom:0;width:58%;
  background:url('/xbun-sub-hero.webp') right center/cover no-repeat;
  opacity:.9;pointer-events:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.3) 28%,#000 72%);
  mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.3) 28%,#000 72%);
}
.subhero-inner{
  position:relative;z-index:1;
  max-width:var(--maxw);margin:0 auto;padding:110px 32px 100px;
}
.subhero h1{
  font-family:'Space Grotesk',sans-serif;
  font-weight:600;text-transform:uppercase;
  font-size:clamp(34px,5.4vw,68px);line-height:1;letter-spacing:-.04em;
  color:var(--white);margin-bottom:26px;max-width:23ch;
  text-wrap:balance;
}
.subhero-sub{font-size:clamp(17px,1.7vw,20px);max-width:56ch;color:var(--text)}

/* Breadcrumb */
.breadcrumb{
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin-bottom:24px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb span{margin:0 10px;opacity:.5}

/* ---------- Sections ---------- */
.section{padding:130px 0;position:relative}
.section.tint{background:var(--surface)}
.section.line-top{border-top:1px solid var(--line-soft)}
.section-head{max-width:720px;margin-bottom:72px}
.section-head p{font-size:20px;line-height:1.65}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .eyebrow{justify-content:center}
.section-cta{margin-top:60px}

/* Zweispaltiger Intro-Block */
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px;align-items:start}
.split .lead{font-size:clamp(21px,2.2vw,27px);line-height:1.4;color:var(--white);
  font-family:'Space Grotesk',sans-serif;letter-spacing:-.02em}

/* ---------- Leistungs-Liste (statt Kartenwüste) ---------- */
.svc-list{border-top:1px solid var(--line)}
.svc{
  display:grid;grid-template-columns:88px 1.05fr 1.5fr 44px;
  gap:36px;align-items:start;
  padding:42px 0 42px 0;
  border-bottom:1px solid var(--line);
  transition:background .25s ease,padding .25s ease;
}
.svc:hover{background:linear-gradient(90deg,rgba(213,252,9,.055),rgba(213,252,9,0) 55%)}
.svc-num{
  font-family:'Space Grotesk',sans-serif;font-size:14px;font-weight:600;
  letter-spacing:.16em;color:var(--muted);padding-top:8px;
  transition:color .25s ease;
}
.svc:hover .svc-num{color:var(--lime)}
.svc h3{margin-bottom:6px}
.svc h3 a{color:var(--white)}
.svc h3 a:hover{color:var(--lime);text-decoration:none}
.svc .svc-kicker{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.svc p{font-size:17px;margin-bottom:0}
.svc-go{
  align-self:center;justify-self:end;
  width:44px;height:44px;border:1px solid var(--line);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--white);font-size:16px;
  transition:border-color .25s ease,background .25s ease,color .25s ease,transform .25s ease;
}
.svc:hover .svc-go{border-color:var(--lime);background:var(--lime);color:#000;transform:translateX(4px)}


/* ---------- Argumente / Warum ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.arg{
  padding:0 32px;border-left:1px solid var(--line);
}
.arg:first-child{padding-left:0;border-left:0}
.arg b{
  display:block;font-family:'Space Grotesk',sans-serif;font-weight:600;
  font-size:clamp(22px,2.3vw,28px);letter-spacing:-.02em;line-height:1.2;
  color:var(--white);margin-bottom:14px;
}
.arg p{font-size:16px;color:var(--muted)}

/* ---------- Region ---------- */
.region-list{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;list-style:none;
}
.region-list li{
  font-size:13px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--text-strong);
  border:1px solid var(--line);border-radius:100px;
  padding:9px 20px;
}

/* ---------- Prose ---------- */
.prose{max-width:800px}
.prose.wide{max-width:100%}
.prose h2{margin-bottom:30px}
.prose h3{margin-top:52px;margin-bottom:14px}
.prose h4{margin-top:34px;color:var(--text-strong)}
.prose .lead-answer{
  border-left:2px solid var(--lime);padding-left:26px;
  font-size:19px;color:var(--text-strong);margin:0 0 28px;
}
ul.check{list-style:none;margin:22px 0 28px}
ul.check li{padding-left:34px;position:relative;margin-bottom:14px;font-size:17px}
ul.check li::before{
  content:"\2192";position:absolute;left:0;top:0;
  color:var(--lime);font-weight:700;
}
.prose ul:not(.check),.prose ol{margin:20px 0 28px 22px}
.prose li{margin-bottom:10px}

/* Glossar */
.prose dl{margin:0}
.prose dt{
  font-family:'Space Grotesk',sans-serif;font-weight:600;
  font-size:clamp(19px,2.1vw,23px);line-height:1.25;
  letter-spacing:-.015em;color:var(--white);
  margin:34px 0 10px;
}
.prose dd{margin:0}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:30px 0;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary h3{margin:0;color:var(--text-strong);transition:color .18s ease}
.faq-item summary:hover h3{color:var(--lime)}
.faq-item summary::after{
  content:"+";flex-shrink:0;
  font-family:'Space Grotesk',sans-serif;font-weight:500;font-size:30px;
  line-height:1;color:var(--lime);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 60px 32px 0;font-size:17px;max-width:78ch}

/* ---------- CTA-Band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--surface);
  border-top:1px solid var(--line-soft);
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(213,252,9,0) 0%,rgba(213,252,9,.85) 50%,rgba(213,252,9,0) 100%);
}
.cta-inner{
  position:relative;z-index:1;
  max-width:var(--maxw);margin:0 auto;padding:120px 32px;
}
.cta-inner h2{max-width:16ch;margin-bottom:28px}
.cta-inner p{max-width:52ch;margin-bottom:40px;font-size:18px}
.cta-mail{
  display:flex;align-items:center;gap:14px;
  margin-top:34px;font-size:17px;color:var(--text-strong);
}
.cta-mail svg{width:21px;height:21px;color:var(--lime);flex-shrink:0}
.cta-mail a{color:var(--lime);font-weight:600}

/* ---------- Kontaktdaten-Block ---------- */
.contact-lines{list-style:none;margin:0}
.contact-lines li{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line-soft);
  font-size:17px;
}
.contact-lines span{
  min-width:110px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);padding-top:5px;
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--black);color:var(--text);
  padding:100px 0 44px;font-size:16px;
  position:relative;
  border-top:1px solid var(--line-soft);
}
.site-footer::after{
  content:"";position:absolute;top:0;left:8%;right:8%;height:70px;
  pointer-events:none;
  background:radial-gradient(ellipse 50% 100% at 50% 0%,
    rgba(213,252,9,.16) 0%,
    rgba(213,252,9,.05) 45%,
    rgba(213,252,9,0) 78%);
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.1fr;gap:56px;
  max-width:var(--maxw);margin:0 auto;padding:0 32px 72px;position:relative;z-index:1;
}
.footer-grid .logo{margin-bottom:24px}
.site-footer .logo img{height:22px;width:auto;opacity:.85;transition:opacity .2s ease}
.site-footer .logo:hover img{opacity:1}
.footer-about{max-width:340px;color:var(--muted);font-size:15px}
.footer-grid h3{
  color:var(--white);font-size:12px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;margin-bottom:24px;
}
.footer-grid ul{list-style:none}
.footer-grid li{margin-bottom:13px}
.footer-grid a{color:var(--text)}
.footer-grid a:hover{color:var(--lime)}
.footer-nap{font-style:normal;color:var(--text);line-height:1.85;font-size:15px}
.footer-nap a{color:var(--text)}
.footer-nap a:hover{color:var(--lime)}
.footer-bottom{
  max-width:var(--maxw);margin:0 auto;padding:30px 32px 0;
  border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:22px;flex-wrap:wrap;
  color:var(--muted);font-size:14px;position:relative;z-index:1;
}
.footer-bottom a{color:var(--text)}
.footer-bottom a:hover{color:var(--lime)}
.footer-claim{
  font-family:'Space Grotesk',sans-serif;letter-spacing:.24em;
  text-transform:uppercase;font-size:12px;color:var(--muted);
}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .split{grid-template-columns:1fr;gap:40px}
  .grid-4{grid-template-columns:repeat(2,1fr);gap:44px 0}
  .arg:nth-child(3){padding-left:0;border-left:0}
  .hero-img{width:88%}
}
@media (max-width:1000px){
  .nav-links,.nav-cta{display:none}
  .burger{display:block}
  .nav-links.open{
    display:flex;flex-direction:column;align-items:flex-start;gap:4px;
    position:absolute;top:84px;left:0;right:0;
    background:#080808;padding:24px 32px 32px;
    border-bottom:1px solid var(--line);
  }
  .nav-links.open a{display:block;padding:13px 0;font-size:15px}
  .nav-links.open .has-sub{padding:0}
  .nav-links.open .subnav{
    display:block;position:static;transform:none;min-width:0;
    background:transparent;border:0;box-shadow:none;
    padding:0 0 6px 20px;
  }
  .nav-links.open .subnav a{padding:9px 0;font-size:14px;color:var(--muted);text-transform:none}
}
@media (max-width:900px){
  .section{padding:88px 0}
  .svc{grid-template-columns:56px 1fr;gap:16px 20px;padding:34px 0}
  .svc-text{grid-column:2}
  .svc-go{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:44px}
  .hero{min-height:0}
  .hero-inner{padding:70px 24px 80px}
  .hero-img{
    width:100%;
    -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.55) 55%,transparent 100%);
    mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.55) 55%,transparent 100%);
    opacity:.55;
  }
  .subhero::before{width:100%;opacity:.35;
    -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.4) 60%,transparent 100%);
    mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.4) 60%,transparent 100%)}
  .subhero-inner{padding:70px 24px 64px}
  .wrap,.nav,.cta-inner,.footer-grid,.footer-bottom,.hero-inner,.subhero-inner{padding-left:24px;padding-right:24px}
  .faq-item p{padding-right:0}
  .cta-inner{padding-top:80px;padding-bottom:80px}
  .logo-tags{display:none}
}
@media (max-width:600px){
  body{font-size:17px}
  .section{padding:72px 0}
  .grid-4{grid-template-columns:1fr}
  .arg{padding-left:0;border-left:0;border-top:1px solid var(--line);padding-top:26px}
  .arg:first-child{border-top:0;padding-top:0}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%;text-align:center}
  .hero-actions{flex-direction:column;align-items:stretch}
  .claim{font-size:clamp(46px,15vw,72px)}
  .site-footer{padding-top:72px}
}