/* AIT Group, Startseite: Kopfzeile, Handy-Menue und Hero.
   Weisser Grund, schwarze Schrift, Violett nur als Akzent. Rechts die AIT-Marke als 3D-Objekt (mark.js),
   links die Aussage, oben eine Zeile in Monospace, unten eine Haarlinie mit Kreuzmarken und die Kundenlogos.
   Mit Bewegung ist der Hero hoeher als der Bildschirm: Die Buehne bleibt stehen, waehrend die Marke beim Scrollen
   aufgeht. Ohne WebGL steht an der Stelle der Marke ein Standbild. */

/* ==========================================================================
   Kopfzeile
   ========================================================================== */
.hd{position:fixed;top:0;left:0;right:0;z-index:30;
  display:flex;align-items:center;height:var(--hd-h);
  padding:0 max(var(--gx),env(safe-area-inset-right,0px)) 0 max(var(--gx),env(safe-area-inset-left,0px));
  color:var(--on-light);
  transition:background-color 400ms var(--ease),box-shadow 400ms var(--ease),translate 600ms var(--ease)}
.hd.is-solid{background:rgba(255,255,255,.78);box-shadow:0 1px 0 var(--line-light);
  -webkit-backdrop-filter:saturate(1.6) blur(18px);backdrop-filter:saturate(1.6) blur(18px)}
.hd.is-away{translate:0 -100%}
.menu-open .hd{translate:none;background:none;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}

.hd__brand{display:flex;align-items:center;gap:10px;flex:none;margin-right:clamp(40px,5.6vw,112px);padding:6px 0}
.hd__brand img{width:28px;height:auto}
.hd__brand span{font-size:21px;font-weight:600;line-height:1;letter-spacing:-.012em}

.hd__nav{display:flex;align-items:center;gap:clamp(22px,2.4vw,40px)}
.hd__nav a{position:relative;padding:8px 0;font-size:14.5px;font-weight:500;line-height:1;color:var(--on-light-2);transition:color 250ms}
.hd__nav a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:right;transition:transform 450ms var(--ease)}
.hd__nav a:hover{color:var(--on-light)}
.hd__nav a:hover::after{transform:scaleX(1);transform-origin:left}

.hd__tools{margin-left:auto;display:flex;align-items:center;gap:clamp(20px,2vw,30px)}
.hd__login{font-size:14.5px;font-weight:500;line-height:1.2;color:var(--on-light-2);padding:8px 0;transition:color 250ms}
.hd__login:hover{color:var(--on-light)}

/* Sprachwahl: aktive Sprache dunkel, die andere gedimmt */
.lang{display:flex;align-items:center;font-family:var(--font-mono);font-size:11.5px;line-height:1;letter-spacing:.06em}
.lang a{padding:8px 6px;color:var(--on-light-3);transition:color 250ms}
.lang a:first-child{padding-left:0}
.lang a+a{border-left:1px solid var(--line-light)}
.lang a:hover,.lang a[aria-current]{color:var(--on-light)}

/* Menue-Knopf, nur auf Handy und Tablet */
.hd__menu{display:none;margin-left:auto;width:44px;height:44px;margin-right:-10px;padding:0;border:0;background:none;cursor:pointer;
  align-items:center;justify-content:center;color:var(--on-light)}
.hd__menu-icon{position:relative;display:block;width:22px;height:10px}
.hd__menu-icon i{position:absolute;left:0;right:0;height:1.5px;background:currentColor;transition:transform 400ms var(--ease),top 400ms var(--ease)}
.hd__menu-icon i:first-child{top:0}
.hd__menu-icon i:last-child{top:8.5px}
.menu-open .hd__menu-icon i:first-child{top:4.25px;transform:rotate(45deg)}
.menu-open .hd__menu-icon i:last-child{top:4.25px;transform:rotate(-45deg)}

/* ==========================================================================
   Handy-Menue
   ========================================================================== */
.menu{position:fixed;inset:0;z-index:25;display:flex;flex-direction:column;justify-content:space-between;gap:40px;overflow-y:auto;
  padding:calc(var(--hd-h) + 12px) max(var(--gx),env(safe-area-inset-right,0px)) max(24px,env(safe-area-inset-bottom,0px)) max(var(--gx),env(safe-area-inset-left,0px));
  background:var(--paper);color:var(--on-light);opacity:0;visibility:hidden;transition:opacity 350ms var(--ease),visibility 0s 350ms}
.menu.is-open{opacity:1;visibility:visible;transition:opacity 350ms var(--ease)}
.menu__nav{display:flex;flex-direction:column;border-top:1px solid var(--line-light)}
.menu__nav a{display:block;padding:clamp(14px,2.4vh,20px) 0;border-bottom:1px solid var(--line-light);
  font-family:var(--font-display);font-size:clamp(30px,8.4vw,44px);line-height:1.1;letter-spacing:-.025em;
  opacity:0;transform:translateY(12px);transition:opacity 450ms var(--ease),transform 550ms var(--ease)}
.menu.is-open .menu__nav a{opacity:1;transform:none}
.menu.is-open .menu__nav a:nth-child(2){transition-delay:50ms}
.menu.is-open .menu__nav a:nth-child(3){transition-delay:100ms}
.menu.is-open .menu__nav a:nth-child(4){transition-delay:150ms}
.menu__foot{display:flex;flex-direction:column;gap:18px}
.menu__row{display:flex;align-items:center;justify-content:space-between;gap:16px}
.menu .hd__login{color:var(--on-light-2)}
.menu-open{overflow:hidden}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{position:relative;z-index:1;color:var(--on-light)}
/* mit Bewegung: Buehne bleibt stehen, waehrend man durch den Hero scrollt */
.motion-ready .hero{height:200vh;height:200svh}
.land.motion-ready .hero{height:620vh;height:620svh}
.hero__stage{position:relative;isolation:isolate;overflow:hidden;
  display:flex;flex-direction:column;height:100vh;height:100svh;min-height:600px;
  padding:var(--hd-h) max(var(--gx),env(safe-area-inset-right,0px)) 0 max(var(--gx),env(safe-area-inset-left,0px))}
.motion-ready .hero__stage{position:sticky;top:0}

/* 3D-Flaeche fest hinter der ganzen Seite (mark.js), im Hero ohne WebGL ein Standbild */
.stage3d{position:fixed;left:0;top:0;z-index:0;width:100%;height:100vh;height:100lvh;display:none;pointer-events:none}
.mark .stage3d{display:block}
main{position:relative;z-index:1}
.hero__still{display:none;position:absolute;z-index:-1;right:calc(var(--gx) + 4vw);top:50%;width:min(36vw,520px);height:auto;transform:translateY(-50%);opacity:.95}
.mark-off .hero__still,html:not(.mark) .hero__still{display:block}
.mark-on .hero__still{display:none}

/* Flug ueber Liechtenstein (land.js): Flaeche, Beschriftungen, Texte der Stationen */
.land-stage{display:none;position:absolute;inset:0;z-index:-1}
html.land .land-stage{display:block}
html.land .hero__still{display:none}
.land__canvas{display:block;width:100%;height:100%;opacity:0;transition:opacity 1.6s var(--ease)}
.land-on .land__canvas{opacity:1}
.land__veil{position:absolute;inset:0;pointer-events:none;opacity:0;
  background:linear-gradient(90deg,rgba(255,255,255,.88) 0%,rgba(255,255,255,.6) 32%,rgba(255,255,255,0) 58%),linear-gradient(0deg,rgba(255,255,255,.7) 0%,rgba(255,255,255,0) 22%)}
.land__labels{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.land__label{position:absolute;left:0;top:0;display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:0 0 0 10px;margin-top:-10px;
  border-left:1px solid var(--violet);font-family:var(--font-mono);font-size:10.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--on-light);
  opacity:0;transition:opacity 500ms var(--ease);will-change:transform}
.land__label b{font-weight:500}
.land__label i{font-style:normal;color:var(--violet)}
.land__label.is-hq{font-size:12px;padding-left:12px;border-left-width:2px}
.land__label.is-on{opacity:1}
.land__caps{position:absolute;left:max(var(--gx),env(safe-area-inset-left,0px));bottom:clamp(110px,16vh,180px);right:var(--gx);pointer-events:none}
.land__cap{position:absolute;left:0;bottom:0;max-width:min(760px,90vw);opacity:0;visibility:hidden}
.land__cap .mono{margin-bottom:16px;color:var(--on-light-2)}
.land__big{font-family:var(--font-display);font-size:clamp(44px,6vw,112px);line-height:.94;letter-spacing:-.05em;color:var(--on-light)}
.land__big b{font-weight:inherit;color:var(--violet)}
.land__small{max-width:30em;margin-top:18px;font-size:clamp(16px,1.25vw,20px);line-height:1.45;color:var(--on-light-2)}
/* in der Daemmerung ueber den Wolken: helle Schrift */
.hero-dusk .land__cap .land__big,.hero-dusk .land__cap .mono{color:#fff}
.hero-dusk .land__cap .land__small{color:rgba(255,255,255,.75)}
.hero-dusk .land__big b{color:var(--violet-light)}
.land__label--earth{color:#fff;border-left-color:var(--violet-light)}
.land__label--earth i{color:#D7C2FF}
.land__label--earth.is-hq b{color:#fff}
.land__credit{position:absolute;right:max(var(--gx),env(safe-area-inset-right,0px));bottom:calc(clamp(16px,2.6vh,26px) + 64px);max-width:44em;text-align:right;font-size:9.5px;letter-spacing:.04em;text-transform:none;color:var(--on-light-3);opacity:.7;display:none}
html.land .land__credit{display:block}

/* Zeile oben in Monospace */
.hero__meta{display:grid;grid-template-columns:1fr auto;align-items:center;gap:24px;padding:14px 0;
  border-top:1px solid var(--line-light);color:var(--on-light-3)}
.hero__meta span:last-child{text-align:right}
.hero__meta time{color:var(--on-light);font-variant-numeric:tabular-nums}
.hero__meta .dot{display:inline-block;width:6px;height:6px;margin-right:8px;border-radius:50%;background:var(--violet);vertical-align:1px;
  box-shadow:0 0 0 0 rgba(145,70,232,.5);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(145,70,232,.45)}70%,100%{box-shadow:0 0 0 9px rgba(145,70,232,0)}}

/* Aussage */
.hero__body{position:relative;margin-top:auto;max-width:min(980px,100%);padding-bottom:clamp(30px,5vh,56px)}
.hero__title{font-family:var(--font-display);font-weight:400;
  font-size:clamp(46px,min(6.6vw,11vh),132px);line-height:.94;letter-spacing:-.05em;color:var(--on-light)}
.hero__title .l{display:block;white-space:nowrap}
.hero__title b{font-weight:inherit;color:var(--violet)}
/* Masken fuer die aufsteigenden Woerter (motion.js) */
.w{display:inline-block;overflow:hidden;vertical-align:top;padding:.08em .02em .14em;margin:-.08em -.02em -.14em}
.w>i{display:inline-block;font-style:normal;will-change:transform}
.hero__lead{max-width:30em;margin-top:clamp(20px,3vh,32px);font-size:clamp(17px,min(1.3vw,2.4vh),21px);line-height:1.45;color:var(--on-light-2)}
.hero__actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px clamp(28px,3vw,44px);margin-top:clamp(24px,4vh,40px)}

/* Satz, der erscheint, wenn die Marke in der Mitte steht */
.hero__claim{position:absolute;left:0;right:0;bottom:clamp(64px,13vh,140px);z-index:1;text-align:center;pointer-events:none;
  font-family:var(--font-display);font-size:clamp(28px,3.4vw,60px);line-height:1;letter-spacing:-.04em;color:var(--on-light);
  opacity:0;visibility:hidden;transform:translateY(24px)}

/* Haarlinie mit Kreuzmarken */
.hero__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.hero__grid i{position:relative;display:block;height:1px;background:var(--line-light);transform-origin:left}
.hero__grid i::before,.hero__grid i:last-child::after{content:"";position:absolute;top:-6px;width:13px;height:13px;
  background:linear-gradient(var(--on-light),var(--on-light)) 50%/1px 100% no-repeat,linear-gradient(var(--on-light),var(--on-light)) 50%/100% 1px no-repeat}
.hero__grid i::before{left:-6px}
.hero__grid i:last-child::after{right:-6px}

/* Fusszeile: Kunden als Laufband, rechts der Hinweis zum Scrollen */
.hero__foot{display:grid;grid-template-columns:minmax(150px,auto) minmax(0,1fr);align-items:center;column-gap:clamp(28px,4vw,72px);
  padding:clamp(16px,2.6vh,26px) 0 max(clamp(16px,2.6vh,26px),env(safe-area-inset-bottom,0px))}
.hero__label{color:var(--on-light-3)}
.marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee__track{display:flex;align-items:center;gap:clamp(40px,5vw,88px);width:max-content;animation:marquee 38s linear infinite}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee__track li,.marquee__track a,.marquee__track span{display:flex;align-items:center}
/* Logos sind weiss angeliefert: hier schwarz, einheitliche optische Groesse ueber --k */
.marquee__track img{width:auto;max-width:none;height:calc(var(--k,1) * clamp(20px,1.7vw,30px));filter:brightness(0);opacity:.62;transition:opacity 300ms}
.marquee__track a:hover img{opacity:1}
@keyframes marquee{to{transform:translateX(calc(-50% - clamp(20px,2.5vw,44px)))}}
.hero__scroll{display:flex;align-items:center;gap:12px;color:var(--on-light-2)}
.hero__scroll i{position:relative;display:block;width:1px;height:28px;overflow:hidden;background:var(--line-light)}
.hero__scroll i::after{content:"";position:absolute;left:0;top:0;width:1px;height:50%;background:var(--on-light);animation:drip 2s var(--ease) infinite}
@keyframes drip{0%{transform:translateY(-100%)}100%{transform:translateY(200%)}}

/* ==========================================================================
   Anpassungen
   ========================================================================== */
@media (min-width:1081px) and (max-height:760px){
  :root{--hd-h:68px}
  .hero__body{padding-bottom:22px}
}
@media (max-width:1240px){
  .hd__brand{margin-right:clamp(32px,3.6vw,56px)}
}

/* Tablet und Handy: Menue-Knopf statt Navigation */
@media (max-width:1080px){
  .hd__nav,.hd__tools{display:none}
  .hd__menu{display:flex}
  .hd__brand{margin-right:0}
}
@media (min-width:1081px){
  .menu{display:none}
}

/* Hochformat: Marke oben, Text unten */
@media (max-width:999px),(max-aspect-ratio:23/20){
  .motion-ready .hero{height:180vh;height:180svh}
  .land.motion-ready .hero{height:520vh;height:520svh}
  .hero__title{font-size:clamp(42px,min(8.6vw,6.4vh),96px)}
  .hero__still{right:50%;top:calc(var(--hd-h) + 9vh);width:min(52vw,320px);transform:translateX(50%)}
  .hero__foot{grid-template-columns:minmax(0,1fr);row-gap:14px}
  .hero__label{grid-column:1/-1}
}

/* Handy */
@media (max-width:640px){
  .hero__meta{grid-template-columns:1fr auto;gap:12px;font-size:10.5px}
  .hero__meta .long{display:none}
  .hero__title{font-size:clamp(34px,9.6vw,46px);line-height:.98}
  .land__big{font-size:clamp(36px,10vw,52px)}
  .land__caps{bottom:clamp(120px,20vh,190px)}
  .land__credit{left:var(--gx);text-align:left;font-size:8.5px;bottom:calc(env(safe-area-inset-bottom,0px) + 96px)}
  .hero__claim{font-size:clamp(24px,7.4vw,34px);bottom:clamp(90px,16vh,150px);padding:0 var(--gx)}
  .hero__title .l{white-space:normal}
  .hero__lead{font-size:16.5px;margin-top:16px}
  .hero__actions{flex-direction:column;align-items:stretch;gap:10px;margin-top:22px}
  .hero__actions .btn{justify-content:space-between}
  .hero__actions .link{align-self:flex-start}
  .hero__scroll{display:none}
  .hero__foot{grid-template-columns:minmax(0,1fr)}
}

@media (prefers-reduced-motion:reduce){
  .marquee__track{animation:none;flex-wrap:wrap;width:auto;row-gap:18px}
  .marquee__track [aria-hidden]{display:none}
  .marquee{-webkit-mask-image:none;mask-image:none}
  .hero__scroll i::after,.hero__meta .dot{animation:none}
}