@font-face{font-family:"Sofia Sans";src:url(fonts/sofia-sans.woff2) format("woff2");font-weight:1 1000;font-display:swap}

:root{
  --tief:#182233; --gleis:#34425A; --weiss:#fff; --schwarz:#111111;
  --leise:#C5CEDC;
  --s1:#FF6A4D; --s2:#FFC62B; --s3:#1CC8BE; --s4:#FF9633; --s5:#37D07F; --s6:#B7E03A;
  --gut:clamp(20px,4.4vw,64px);
  --r:8px;
  --ease:cubic-bezier(.16,1,.3,1);
  --nav:72px;
  --u:max(.66px,min(calc(100vw / 1440),calc(100dvh / 900)));
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:var(--nav);background:var(--tief);scrollbar-color:var(--gleis) var(--tief)}
body{margin:0;background:var(--tief);color:var(--weiss);font:400 18px/1.5 "Sofia Sans",system-ui,sans-serif;font-feature-settings:"tnum";-webkit-font-smoothing:antialiased;text-rendering:geometricPrecision;overflow-x:clip}
h1,h2,h3,p,ul,ol,figure,fieldset{margin:0;padding:0;border:0}
ul,ol{list-style:none}
img,svg{display:block}
a{color:inherit}
button,input,textarea{font:inherit;color:inherit}
::selection{background:var(--s2);color:var(--schwarz)}
:focus-visible{outline:3px solid var(--weiss);outline-offset:3px;border-radius:4px}
.papier :focus-visible,.stop :focus-visible{outline-color:var(--schwarz)}
.icon{width:1.25em;height:1.25em;fill:currentColor;flex:none}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}

h2{font-size:clamp(38px,5vw,68px);font-weight:680;line-height:1.05;letter-spacing:-.02em;text-wrap:balance}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;min-height:52px;padding:0 24px;border-radius:var(--r);font-weight:700;text-decoration:none;white-space:nowrap;transition:transform .35s var(--ease),background-color .2s,color .2s;cursor:pointer;border:2px solid transparent}
.btn:active{transform:translateY(1px) scale(.985)}
.btn .icon{transition:transform .35s var(--ease)}
.btn:hover .icon{transform:translateX(4px)}
.btn-weiss{background:var(--weiss);color:var(--tief)}
.btn-weiss:hover{background:var(--s2);color:var(--schwarz)}
.btn-rand{border-color:var(--weiss);color:var(--weiss)}
.btn-rand:hover{background:var(--weiss);color:var(--tief)}
.btn-tief{background:var(--tief);color:var(--weiss)}
.btn-tief:hover{background:var(--schwarz)}
.chip{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:28px;padding:0 8px;border-radius:6px;background:var(--c);color:var(--schwarz);font-weight:800;font-size:17px;letter-spacing:.01em;text-decoration:none;transition:transform .35s var(--ease),background-color .2s,color .2s}
a.chip:hover{transform:scale(1.08)}

/* Navigation */
.nav{position:fixed;inset:0 0 auto;z-index:30;height:var(--nav);background:var(--tief)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:calc(var(--u) * 1440);margin:auto;padding:0 calc(var(--u) * 64)}
.nav-logo img{height:58px;width:auto;margin-left:-13px}
.nav-links{display:flex;align-items:center;gap:36px}
.nav-links a:not(.btn){text-decoration:none;font-weight:600;color:var(--leise);transition:color .2s}
.nav-links a:not(.btn):hover{color:var(--weiss)}
.nav-links .btn{min-height:44px;padding:0 18px}
.nav-menu{display:none;align-items:center;justify-content:center;width:44px;height:44px;background:none;border:0;color:var(--weiss);cursor:pointer}
.nav-menu .icon{width:28px;height:28px}
.nav-menu .zu{display:none}
.nav.offen .nav-menu .zu{display:block}
.nav.offen .nav-menu .auf{display:none}

/* Netzplan */
.hero{position:relative;height:max(100dvh,calc(var(--u) * 900));overflow:hidden}
.stage{position:relative;width:calc(var(--u) * 1440);height:calc(var(--u) * 900);margin:0 auto;top:50%;transform:translateY(-50%)}
.map{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.map-m{display:none}
.hero-copy{position:absolute;left:calc(var(--u) * 64);top:calc(var(--u) * 122);width:calc(var(--u) * 880)}
.hero-copy h1{font-size:calc(var(--u) * 70);font-weight:700;line-height:1.04;letter-spacing:-.022em}
.hero-copy p{margin-top:calc(var(--u) * 20);max-width:calc(var(--u) * 610);font-size:calc(var(--u) * 23);line-height:1.35;color:var(--leise)}
.hero-cta{display:flex;gap:12px;margin-top:calc(var(--u) * 28)}
.hero-cta .btn{min-height:max(44px,calc(var(--u) * 52))}

.ln{fill:none;stroke-width:8;stroke-linecap:round;stroke-linejoin:round;transition:stroke .25s}
.map.fokus .ln:not(.an){stroke:var(--gleis)}
.halt circle{fill:var(--tief);stroke:var(--weiss);stroke-width:5;transition:fill .2s,r .3s var(--ease)}
.halt .fl{fill:transparent}
.halt text{fill:var(--weiss);font-weight:680;font-size:26px}
.halt text.sub{fill:var(--leise);font-weight:400;font-size:17px}
.map.fokus .halt:not(.an) text{fill:var(--leise)}
.halt:hover circle,.halt.an circle{fill:var(--weiss)}
.halt:focus-visible{outline:none}
.halt:focus-visible .fl{stroke:var(--weiss);stroke-width:3}
.leg{cursor:pointer}
.leg rect.c{rx:6px}
.leg text{font-size:21px;font-weight:600;fill:var(--weiss)}
.leg text.n{fill:var(--schwarz);font-weight:800;font-size:18px}
.leg .fl{fill:transparent}
.map.fokus .leg:not(.an) text:not(.n){fill:var(--leise)}
.leg:focus-visible{outline:none}
.leg:focus-visible .fl{stroke:var(--weiss);stroke-width:3}
.halt text.chiptext{fill:var(--schwarz);font-size:17px;font-weight:800}

/* Linien */
.linien{padding:clamp(88px,11vw,160px) var(--gut) clamp(80px,9vw,130px);max-width:1440px;margin:auto}
.lines{margin-top:clamp(40px,5vw,72px)}
.line{--c:var(--s1);position:relative;display:grid;grid-template-columns:minmax(330px,27%) 1fr;gap:clamp(24px,3vw,48px);padding:26px 22px;margin:0 -22px;border-radius:var(--r);scroll-margin-top:calc(var(--nav) + 20px);isolation:isolate}
.line::before{content:"";position:absolute;inset:0;z-index:-1;border-radius:var(--r);background:var(--c);clip-path:inset(0 100% 0 0 round 8px);transition:clip-path .55s var(--ease)}
.line:hover::before,.line.ziel::before{clip-path:inset(0 0 0 0 round 8px)}
.line-kopf{display:flex;align-items:flex-start;gap:14px}
.line-kopf .chip{margin-top:3px}
.line h3{font-size:clamp(23px,2.3vw,30px);font-weight:680;line-height:1.12;letter-spacing:-.012em;transition:color .25s}
.line-kopf .icon{width:30px;height:30px;margin-left:auto;margin-top:2px;color:var(--c);transition:color .25s}
.band{position:relative;padding-top:6px}
.band ul{display:flex}
.band .gleis{position:absolute;left:0;right:0;top:16px;height:8px;border-radius:4px;background:var(--c);transform-origin:left;transition:background-color .25s}
.band .gleis::after{content:"";position:absolute;right:0;top:-8px;width:8px;height:24px;border-radius:4px;background:inherit}
.band li{flex:1;position:relative;padding-top:38px;padding-right:14px;font-size:17px;line-height:1.32;color:var(--leise);transition:color .25s}
.band li::before{content:"";position:absolute;left:0;top:4px;width:20px;height:20px;border-radius:50%;background:var(--tief);border:4px solid var(--weiss);transition:background-color .25s,border-color .25s}
.line:hover h3,.line:hover .band li,.line:hover .line-kopf .icon,.line.ziel h3,.line.ziel .band li,.line.ziel .line-kopf .icon{color:var(--schwarz)}
.line:hover .band .gleis,.line.ziel .band .gleis{background:var(--schwarz)}
.line:hover .band li::before,.line.ziel .band li::before{background:var(--weiss);border-color:var(--schwarz)}
.line:hover .chip,.line.ziel .chip{background:var(--schwarz);color:var(--weiss)}

/* Fahrt durch die Demos */
.ride{position:relative}
.ride-pin{position:relative;height:100dvh;min-height:600px;overflow:hidden}
.ride-track{display:flex;height:100%;overflow-x:auto;scroll-snap-type:x proximity}
.ride.pinned .ride-track{overflow:visible;width:max-content}
.stop{flex:none;width:100vw;height:100%;scroll-snap-align:start;position:relative;display:grid;align-items:center;padding:calc(var(--nav) + 24px) 0 calc(96px + 24px) var(--gut);background:var(--bg);color:var(--schwarz);overflow:hidden}
.stop-intro{width:min(72vw,1040px);background:var(--tief);color:var(--weiss);padding-right:var(--gut)}
.stop-intro h2{font-size:clamp(46px,6.4vw,96px)}
.stop-intro p{margin-top:22px;font-size:clamp(20px,1.7vw,26px);color:var(--leise);max-width:26em}
.stop-grid{display:grid;grid-template-columns:minmax(0,37%) minmax(0,1fr);align-items:center;gap:clamp(28px,4vw,72px);height:100%;min-height:0}
.stop-text h3{font-size:clamp(42px,4.7vw,76px);font-weight:720;line-height:1;letter-spacing:-.024em}
.stop-text p{margin-top:18px;font-size:clamp(19px,1.5vw,23px);line-height:1.32;max-width:21em}
.stop-links{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;margin-top:26px}
.stop-links .neben{font-weight:700;text-underline-offset:4px;text-decoration-thickness:2px}
.shot{min-width:0;min-height:0;height:100%;display:flex;align-items:center}
.shot img{border-radius:12px 0 0 12px;max-height:100%;width:auto;max-width:none;height:min(100%,72vh)}
.shot.hand{justify-content:center;padding-right:var(--gut)}
.shot.hand img{border-radius:12px;height:min(100%,72vh)}

.ride-strip{display:none;position:absolute;left:0;right:0;bottom:0;height:96px;background:var(--tief);z-index:5}
.ride.pinned .ride-strip{display:block}
.strip-in{position:relative;height:100%;margin:0 calc(var(--gut) + 30px)}
.strip-gleis{position:absolute;left:0;right:0;top:30px;height:8px;border-radius:4px;background:var(--aktiv,var(--weiss));transition:background-color .3s}
.strip-halt{position:absolute;top:0;transform:translateX(-50%);background:none;border:0;color:var(--leise);display:flex;flex-direction:column;align-items:center;gap:7px;padding:22px 8px 0;cursor:pointer;font-weight:650;font-size:17px;white-space:nowrap;transition:color .2s}
.strip-halt::before{content:"";width:24px;height:24px;border-radius:50%;background:var(--tief);border:5px solid var(--weiss);transition:background-color .2s}
.strip-halt.an{color:var(--weiss)}
.strip-halt.an::before{background:var(--weiss)}
.strip-halt:hover{color:var(--weiss)}
.strip-zug{position:absolute;top:10px;left:0;width:48px;height:48px;margin-left:-24px;background:var(--weiss);border:3px solid var(--tief);border-radius:50%;padding:4px;will-change:transform;pointer-events:none}
.strip-zug img{width:100%;height:100%}

/* Ablauf */
.ablauf{padding:clamp(96px,11vw,170px) max(var(--gut),calc((100% - 1312px) / 2)) clamp(60px,6vw,80px);overflow-x:clip;overflow-y:visible}
.stair{position:relative;margin-top:clamp(36px,4vw,64px);aspect-ratio:1200/560}
.stair svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.stair circle{fill:var(--tief);stroke:var(--weiss);stroke-width:6}
.stair path{fill:none;stroke:var(--weiss);stroke-width:8;stroke-linejoin:round;stroke-linecap:round}
.schritt{position:absolute;width:19%}
.schritt:nth-of-type(1){left:0;top:18%}
.schritt:nth-of-type(2){left:25%;top:39.4%}
.schritt:nth-of-type(3){left:50%;top:60.8%}
.schritt:nth-of-type(4){left:75%;top:82.2%}
.schritt h3{font-size:clamp(23px,2.3vw,32px);font-weight:680;letter-spacing:-.012em;line-height:1.1}
.schritt p{margin-top:6px;font-size:17px;line-height:1.32;color:var(--leise)}

/* Anfrage: einmaliger Wechsel auf Papierweiß */
.papier{position:relative;z-index:1;background:var(--weiss);color:var(--tief)}
.anfrage{position:relative;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(40px,7vw,120px);padding:clamp(88px,10vw,150px) var(--gut);max-width:1440px;margin:auto}
.anfrage h2{font-size:clamp(46px,6.4vw,92px)}
.endlinie{position:absolute;left:var(--gut);right:var(--gut);top:0;height:96px}
.endlinie svg{position:absolute;right:0;top:0;overflow:visible}
.endlinie path{fill:none;stroke:var(--tief);stroke-width:8.7;stroke-linejoin:round}
.e-gleis{position:absolute;left:20px;right:64px;top:48px;height:8px;background:var(--tief)}
.e-ring{position:absolute;left:0;top:32px;width:40px;height:40px;border-radius:50%;background:var(--weiss);border:8px solid var(--tief)}
.anfrage-text p{margin-top:20px;font-size:clamp(20px,1.6vw,24px);line-height:1.34;max-width:24em}
.mail{display:inline-flex;align-items:center;gap:10px;margin-top:30px;font-size:clamp(21px,1.9vw,27px);font-weight:700;text-underline-offset:5px;text-decoration-thickness:2px;color:var(--tief)}
.form{display:grid;gap:22px}
.form legend,.feld label{display:block;font-weight:700;margin-bottom:8px;padding:0}
.themen{display:flex;flex-wrap:wrap;gap:8px}
.thema{position:relative;display:block}
.thema input{position:absolute;inset:0;opacity:0;margin:0;cursor:pointer}
.thema span{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 14px;border:2px solid var(--tief);border-radius:var(--r);font-weight:650;transition:background-color .2s,border-color .2s}
.thema b{font-weight:800;background:var(--c);color:var(--schwarz);padding:1px 6px;border-radius:4px}
.thema input:checked+span{background:var(--c);border-color:var(--c);color:var(--schwarz)}
.thema input:checked+span b{background:var(--schwarz);color:var(--weiss)}
.thema:hover span{border-color:var(--c)}
.thema input:focus-visible+span{outline:3px solid var(--tief);outline-offset:2px}
.zwei{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.feld input,.feld textarea{display:block;width:100%;padding:13px 14px;background:var(--weiss);color:var(--tief);border:2px solid var(--tief);border-radius:var(--r);line-height:1.35;outline:none;transition:box-shadow .15s}
.feld input:focus,.feld textarea:focus{box-shadow:0 0 0 2px var(--tief)}
.feld textarea{min-height:140px;resize:vertical}
.feld.fehler input,.feld.fehler textarea{border-color:#B72D17}
.feld .meldung{display:none;margin-top:6px;color:#B72D17;font-size:16px;font-weight:600}
.feld.fehler .meldung{display:block}
.falle{position:absolute;left:-9999px}
.senden{display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px}
.senden small{font-size:16px;color:var(--tief)}
.senden small a{text-underline-offset:3px}
.status{display:none;padding:12px 14px;border-radius:var(--r);font-weight:600}
.status.fehler{display:block;background:#B72D17;color:var(--weiss)}
.status.fehler a{color:var(--weiss)}
.status.ok{display:block;background:var(--s5);color:var(--schwarz)}
.btn[disabled]{opacity:1;background:var(--gleis);cursor:progress}

/* Fuß */
.fuss{background:var(--tief);padding:clamp(56px,6vw,88px) var(--gut) 32px}
.fuss-in{max-width:1312px;margin:auto;display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:32px}
.fuss-logo{width:min(100%,540px);margin-left:calc(min(100%,540px) * -.063)}
.fuss nav{display:flex;flex-wrap:wrap;gap:10px 28px}
.fuss nav a{font-weight:600;color:var(--leise);text-decoration:none;transition:color .2s}
.fuss nav a:hover{color:var(--weiss)}
.fuss-c{max-width:1312px;margin:28px auto 0;font-size:16px;color:var(--leise)}

/* Rechtstexte */
.recht{max-width:760px;margin:auto;padding:calc(var(--nav) + 56px) var(--gut) 96px}
.recht h1{font-size:clamp(42px,5vw,64px);font-weight:680;letter-spacing:-.02em;line-height:1.05}
.recht h2{font-size:26px;margin:40px 0 8px;letter-spacing:-.01em}
.recht p,.recht ul{margin:0 0 12px;color:var(--leise)}
.recht ul{list-style:disc;padding-left:20px}
.recht a{color:var(--weiss);text-underline-offset:3px}
.luecke{background:var(--s2);color:var(--schwarz);padding:0 5px;border-radius:4px;font-weight:600}
.flach .nav{position:fixed}

@media (max-width:1100px){
  .line{grid-template-columns:1fr;gap:16px}
  .band li{font-size:16px}
}

@media (max-width:899px){
  :root{--nav:64px}
  html{scroll-padding-top:var(--nav)}
  .nav-in{max-width:none;padding:0 var(--gut)}
  .nav-logo img{height:54px;margin-left:-12px}
  .nav-menu{display:flex}
  .nav-links{display:none;position:absolute;top:var(--nav);left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--tief);padding:8px var(--gut) 24px}
  .nav.offen .nav-links{display:flex}
  .nav-links a:not(.btn){padding:12px 0;font-size:22px;color:var(--weiss)}
  .nav-links .btn{margin-top:12px;min-height:52px}

  .hero{height:auto;padding:calc(var(--nav) + 32px) 0 16px}
  .stage{position:static;width:auto;height:auto;transform:none}
  .map-d,.nur-d{display:none}
  .hero-copy{position:static;width:auto;padding:0 var(--gut)}
  .hero-copy h1{font-size:clamp(40px,11.4vw,62px)}
  .hero-copy p{margin-top:16px;max-width:30em;font-size:20px}
  .hero-cta{margin-top:24px;flex-wrap:wrap}
  .hero-cta .btn{flex:1 1 auto}
  .map-m{display:block;position:static;width:100%;max-width:520px;height:auto;margin-top:28px}

  .band{padding:0}
  .band ul{display:grid;gap:16px}
  .band .gleis{left:6px;right:auto;top:6px;bottom:6px;width:8px;height:auto;transform-origin:top}
  .band .gleis::after{display:none}
  .band li{padding:0 0 0 34px;font-size:17px;line-height:22px;min-height:22px;color:var(--leise)}
  .band li::before{left:3px;top:4px;width:14px;height:14px;border-width:3px}
  .line{padding:18px 0;margin:0}
  .line::before{display:none}
  .line:hover h3,.line:hover .band li,.line.ziel h3,.line.ziel .band li{color:inherit}
  .line:hover .band li,.line.ziel .band li{color:var(--leise)}
  .line:hover .line-kopf .icon,.line.ziel .line-kopf .icon{color:var(--c)}
  .line:hover .chip,.line.ziel .chip{background:var(--c);color:var(--schwarz)}

  .ride-pin{height:auto;min-height:0;overflow:visible}
  .ride-track{display:block;overflow:visible;height:auto}
  .stop,.stop-intro{width:auto;height:auto;padding:64px var(--gut)}
  .stop-grid{grid-template-columns:1fr;height:auto;gap:32px}
  .shot{height:auto;justify-content:center;padding:0}
  .stop{scroll-margin-top:calc(var(--nav) + 56px)}
  .ride.stapel .ride-pin{display:flex;flex-direction:column}
  .ride.stapel .ride-strip{display:block;position:sticky;top:var(--nav);order:-1;height:56px}
  .ride.stapel .ride-track{width:100%}
  .ride.stapel .strip-in{margin:0 calc(var(--gut) + 14px)}
  .ride.stapel .strip-gleis{top:24px}
  .ride.stapel .strip-halt{padding-top:16px;font-size:0;gap:0}
  .ride.stapel .strip-zug{top:10px;width:36px;height:36px;margin-left:-18px;padding:2px}
  .shot img,.shot.hand img{width:100%;height:auto;max-width:100%;border-radius:12px}
  .shot.hand img{width:min(74vw,320px)}

  .stair{aspect-ratio:auto;margin-top:36px;padding-left:44px;display:grid;gap:30px}
  .stair svg{display:none}
  .stair::before{content:"";position:absolute;left:11px;top:6px;bottom:-60px;width:8px;border-radius:4px;background:var(--weiss)}
  .schritt{position:relative;width:auto;left:auto!important;top:auto!important}
  .schritt::before{content:"";position:absolute;left:-44px;top:2px;width:30px;height:30px;border-radius:50%;background:var(--tief);border:5px solid var(--weiss)}

  .anfrage{grid-template-columns:1fr;padding-top:116px}
  .endlinie{height:80px}
  .endlinie::before{content:"";position:absolute;left:11px;top:0;width:8px;height:52px;background:var(--tief)}
  .endlinie svg,.e-gleis{display:none}
  .e-ring{top:48px;width:30px;height:30px;border-width:6px}
  .zwei{grid-template-columns:1fr}
  .fuss-logo{width:min(100%,400px)}
  .fuss-in{align-items:flex-start;flex-direction:column}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}
}