/* ---------- Schrift ---------- */
@font-face{font-family:'Open Sans';font-weight:400;font-style:normal;font-display:swap;
  src:url('fonts/open-sans-v34-latin-regular.woff2') format('woff2'),url('fonts/open-sans-v34-latin-regular.woff') format('woff');}
@font-face{font-family:'Open Sans';font-weight:600;font-style:normal;font-display:swap;
  src:url('fonts/open-sans-v34-latin-600.woff2') format('woff2'),url('fonts/open-sans-v34-latin-600.woff') format('woff');}
@font-face{font-family:'Open Sans';font-weight:800;font-style:normal;font-display:swap;
  src:url('fonts/open-sans-v34-latin-800.woff2') format('woff2'),url('fonts/open-sans-v34-latin-800.woff') format('woff');}

/* ---------- Farben ---------- */
:root{
  --blau:#1a58a5;
  --gelb:#fdc717;
  --dunkel:#333;
  --grau:#666;
  --weiss:#fff;
  --nav-h:60px;      /* Hoehe der Sticky-Nav */
  --topbar-h:88px;   /* Hoehe der transparenten Top-Bar */
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Open Sans',Arial,sans-serif;color:var(--grau);line-height:1.6;}
a{text-decoration:none;color:inherit;}
img{max-width:100%;display:block;}

/* ============ HERO ============ */
.hero{position:relative;width:100%;aspect-ratio:16/9;max-height:92vh;min-height:420px;overflow:hidden;}
.hero__bg{position:absolute;inset:0;z-index:0;}
.hero__bg .slide{position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transition:opacity 1.4s ease-in-out;}
.hero__bg .slide.is-active{opacity:1;}
.hero::after{/* leichtes Overlay fuer Lesbarkeit oben */
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(to bottom,rgba(0,0,0,.45) 0%,rgba(0,0,0,0) 30%,rgba(0,0,0,0) 60%,rgba(0,0,0,.25) 100%);}
.hero::before{/* grauer Scrim hinter dem Desktop-Header, faded nach unten */
  content:"";position:absolute;top:0;left:0;right:0;height:220px;z-index:2;pointer-events:none;
  background:linear-gradient(to bottom,rgba(0,0,0,.4) 0%,rgba(0,0,0,.18) 45%,rgba(0,0,0,0) 100%);}

/* Hero-Text (Slider-Caption) */
.hero__caption{position:absolute;z-index:2;left:0;right:0;top: 50%;text-align:center;color:#fff;padding:0 20px;
  text-shadow:0px 10px 26px rgba(0,0,0,.85), 0px 6px 26px rgba(0,0,0,.7);}
.hero__caption h1{font-weight:800;font-size:clamp(1.8rem,4vw,3.2rem);line-height:1.15;margin-bottom:12px;}
.hero__caption p{font-size:clamp(1rem,1.6vw,1.35rem);font-weight:400;max-width:720px;margin:0 auto 22px;}
.hero__caption .btn-cta{display:inline-block;background:var(--gelb);color:var(--dunkel);font-weight:600;
  padding:12px 26px;border-radius:4px;text-shadow:none;transition:transform .15s,box-shadow .15s;}
.hero__caption .btn-cta:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,.3);}

/* ============ TOP-BAR (transparent, scrollt weg) ============ */
.topbar{position:absolute;top:0;left:0;right:0;z-index:20;height:var(--topbar-h);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(16px,4vw,48px);
  transition:opacity .3s ease, transform .3s ease;}
.topbar__logo img{height:56px;width:auto;filter:drop-shadow(0 2px 6px rgba(0,0,0,.35));}
.topbar__right{display:flex;align-items:center;gap:22px;color:#fff;font-weight:600;}
.topbar__contact{display:flex;align-items:center;gap:16px;text-shadow:0 1px 6px rgba(0,0,0,.5);}
.topbar__contact a{display:inline-flex;align-items:center;gap:7px;font-size:.95rem;text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8), -2px -2px 4px rgba(0, 0, 0, 0.8);}
.topbar__contact img{height:18px;width:18px;}
.topbar__icons{display:flex;align-items:center;gap:14px;}
.topbar__icons a{opacity:.9;transition:opacity .15s;}
.topbar__icons a:hover{opacity:1;}
.topbar__icons img{height:22px;width:22px;filter:drop-shadow(0 1px 4px rgba(0,0,0,.4));}

/* Beim Scrollen: Top-Bar ausblenden */
body.scrolled .topbar{opacity:0;transform:translateY(-100%);pointer-events:none;}

/* ============ HAUPT-NAV (sticky) ============ */
.mainnav{position:absolute;left:0;right:0;top:var(--topbar-h);z-index:30;height:var(--nav-h);
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,0);
  transition:background .3s ease, box-shadow .3s ease, top .3s ease;}
.mainnav__inner{width:100%;max-width:1200px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 clamp(16px,4vw,48px);}
.mainnav__logo{display:flex;align-items:center;opacity:0;max-width:0;overflow:hidden;
  transition:opacity .3s ease,max-width .3s ease;}
.mainnav__logo img{height:40px;width:auto;}
/* Icon-/Logo-Umschaltung: hell (ueber Hero) / dunkel (weisse Leiste) */
.mainnav .ico-dark{display:none;}
.mainnav .ico-light{display:block;}
body.scrolled .mainnav .ico-light,
body.mobile-open .mainnav .ico-light{display:none;}
body.scrolled .mainnav .ico-dark,
body.mobile-open .mainnav .ico-dark{display:block;}
.mainnav__logo .ico-light{filter:drop-shadow(0 1px 5px rgba(0,0,0,.5));}
.mainnav__links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;flex-wrap:wrap;}
.mainnav__links a{color:#fff;font-weight:600;font-size:1rem;padding:8px 15px;border-radius:4px;
  position:relative;transition:color .15s;text-shadow:2px 2px 4px rgba(0, 0, 0, 0.8), -2px -2px 4px rgba(0, 0, 0, 0.8);}
.mainnav__links a::after{content:"";position:absolute;left:15px;right:15px;bottom:4px;height:2px;
  background:var(--gelb);transform:scaleX(0);transform-origin:left;transition:transform .2s;}
.mainnav__links a:hover::after,.mainnav__links a.active::after{transform:scaleX(1);}
.mainnav__actions{display:flex;align-items:center;gap:14px;}
.only-mobile{display:none;}
.mainnav__mobicons{display:none;align-items:center;gap:16px;}
.mainnav__mobicons a{display:flex;align-items:center;}
.mainnav__mobicons img{height:24px;width:24px;}
.mainnav__mobicons .ico-light,.mainnav__mobicons a img:only-child{filter:drop-shadow(0 1px 3px rgba(0,0,0,.45));}
.mainnav__toggle{display:none;background:none;border:0;cursor:pointer;width:36px;height:36px;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:0;}
.mainnav__toggle span{display:block;height:3px;width:26px;background:var(--dunkel);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;}
body.mobile-open .mainnav__toggle span:nth-child(1){transform:translateY(8px) rotate(45deg);}
body.mobile-open .mainnav__toggle span:nth-child(2){opacity:0;}
body.mobile-open .mainnav__toggle span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}
.mainnav__btn{background:var(--gelb);color:var(--dunkel);font-weight:600;padding:9px 24px;border-radius:4px;
  white-space:nowrap;transition:transform .15s,box-shadow .15s;}
.mainnav__btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.25);}

/* Beim Scrollen: Nav wird fixed, weiss, Logo erscheint */
body.scrolled .mainnav{position:fixed;top:0;background:#fff;
  box-shadow:0 2px 14px rgba(0,0,0,.12);}
body.scrolled .mainnav__links a{color:var(--dunkel);text-shadow:none;}
body.scrolled .mainnav__logo{opacity:1;max-width:220px;}

/* ============ Demo-Sektionen ============ */
section.block{padding: 40px clamp(16px, 4vw, 48px) 50px;scroll-margin-top:var(--nav-h);}
section.block .inner{max-width:1000px;margin:0 auto;}
section.block h2{color:var(--blau);font-weight:800;font-size:2rem;margin-bottom:16px;}
.block.grau{background:#f5f5f5;}
.block.gelb{background:#fdc717;}
.block.blau{background:var(--blau);color:#fff;}
.block.blau h2{color:#fff;}
.spacer{height:600px;}

/* ============ Content-Komponenten ============ */
.video-block{margin:26px 0 30px;scroll-margin-top:calc(var(--nav-h) + 10px);}
.video-player{display:block;width:100%;height:auto;margin:0 auto;
  border-radius:8px;background:#000;box-shadow:0 8px 24px rgba(0,0,0,.18);}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:26px 20px;margin:30px 0;text-align:center;}
.features .feat img{height:54px;width:auto;margin:0 auto 10px;}
.features .feat span{display:block;font-weight:600;color:var(--dunkel);line-height:1.3;}
@media(max-width:820px){.features{grid-template-columns:repeat(2,1fr);}}
.block .lead{font-size:1.2rem;color:var(--dunkel);margin-bottom:24px;max-width:800px;}
.block .prose p{margin-bottom:16px;}
.block .section-sub{color:var(--dunkel);font-size:1.4rem;font-weight:700;margin:40px 0 16px;}
figure.cimg{margin:26px 0;}
figure.cimg img{width:100%;height:auto;border-radius:6px;display:block;}
figure.cimg figcaption{font-size:.9rem;color:var(--grau);font-style:italic;margin-top:8px;text-align:center;}
.checklist{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px 28px;margin:20px 0;}
.checklist li{position:relative;padding-left:34px;line-height:1.5;}
.checklist li::before{content:"";position:absolute;left:0;top:1px;width:22px;height:22px;
  background:url('../img/icons/done.png') no-repeat center/contain;}
.checklist--detailed{grid-template-columns:repeat(2,1fr);}
.checklist--detailed li{line-height:1.55;}
.checklist--detailed li strong{color:var(--grau);}
@media(max-width:700px){
.hero__caption{top:40%;}
.checklist--detailed{grid-template-columns:1fr;}}
.states{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin:24px 0;}
.states figure{margin:0;}
.states figure img{width:100%;height:auto;border-radius:6px;display:block;}
.states figcaption{margin-top:10px;font-size:.95rem;line-height:1.5;}
.states figcaption em{color:var(--blau);font-style:normal;font-weight:600;display:block;margin-bottom:4px;}
.cta-row{text-align:center;margin:38px 0 4px;}
.btn-primary{display:inline-block;background:var(--gelb);color:var(--dunkel);font-weight:600;
  padding:13px 30px;border-radius:4px;transition:transform .15s,box-shadow .15s;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.2);}
/* Bild-Text-Zeilen */
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center;margin:30px 0;}
.media-row .mr-media img{width:100%;height:auto;border-radius:6px;display:block;}
.media-row .mr-text h3{color:var(--dunkel);font-size:1.3rem;margin-bottom:10px;}
.media-row .mr-text p{margin-bottom:12px;}
.media-row.reverse .mr-media{order:2;}
@media(max-width:760px){
  .media-row{grid-template-columns:1fr;gap:16px;}
  .media-row.reverse .mr-media{order:0;}
}
/* Referenz-Slider */
.slider{position:relative;margin-top:24px;}
.slider__track{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;
  -webkit-overflow-scrolling:touch;padding-bottom:10px;}
.slider__track::-webkit-scrollbar{height:8px;}
.slider__track::-webkit-scrollbar-thumb{background:rgba(0,0,0,.25);border-radius:4px;}
.slider__slide{flex:0 0 calc((100% - 28px)/3);scroll-snap-align:start;border-radius:6px;overflow:hidden;cursor:pointer;}
.slider__slide img{width:100%;height:240px;object-fit:cover;display:block;transition:transform .3s ease;}
.slider__slide:hover img{transform:scale(1.05);}
.slider__btn{position:absolute;top:50%;transform:translateY(-50%);z-index:2;width:44px;height:44px;border:0;
  border-radius:50%;background:var(--blau);color:#fff;font-size:1.7rem;line-height:1;cursor:pointer;
  box-shadow:0 2px 10px rgba(0,0,0,.3);display:flex;align-items:center;justify-content:center;}
.slider__btn--prev{left:-8px;}
.slider__btn--next{right:-8px;}
.slider__btn:hover{background:#14477f;}
@media(max-width:820px){.slider__slide{flex:0 0 calc((100% - 14px)/2);}}
@media(max-width:520px){.slider__slide{flex:0 0 100%;}.slider__slide img{height:260px;}.slider__btn{width:38px;height:38px;font-size:1.4rem;}}

/* Lightbox (Vollbild) */
.lightbox{position:fixed;inset:0;z-index:1000;background:rgba(0,0,0,.92);
  display:none;align-items:center;justify-content:center;}
.lightbox.open{display:flex;}
.lightbox__img{max-width:90vw;max-height:85vh;border-radius:4px;box-shadow:0 6px 30px rgba(0,0,0,.5);}
.lightbox__close{position:absolute;top:16px;right:24px;background:none;border:0;color:#fff;
  font-size:2.8rem;line-height:1;cursor:pointer;}
.lightbox__nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.14);border:0;
  color:#fff;font-size:2.4rem;width:56px;height:56px;border-radius:50%;cursor:pointer;
  display:flex;align-items:center;justify-content:center;}
.lightbox__nav:hover{background:rgba(255,255,255,.28);}
.lightbox__prev{left:20px;}
.lightbox__next{right:20px;}
.lightbox__counter{position:absolute;bottom:18px;left:0;right:0;text-align:center;color:#fff;font-size:.95rem;}
@media(max-width:520px){.lightbox__nav{width:44px;height:44px;font-size:1.9rem;}.lightbox__prev{left:6px;}.lightbox__next{right:6px;}}

/* ============ Formular ============ */
.form{max-width:640px;margin:8px auto 0;background:#fff;border-radius:8px;padding:32px;
  box-shadow:0 8px 26px rgba(0,0,0,.18);text-align:left;}
.form .field{margin-bottom:18px;}
.form label{display:block;font-weight:600;color:var(--dunkel);margin-bottom:6px;}
.form .req{color:#c0392b;}
.form input[type=text],.form input[type=email],.form input[type=tel],.form select,.form textarea{
  width:100%;padding:11px 13px;border:1px solid #ccc;border-radius:5px;font:inherit;
  color:var(--dunkel);background:#fff;box-sizing:border-box;}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--blau);
  box-shadow:0 0 0 3px rgba(26,88,165,.15);}
.form textarea{resize:vertical;min-height:110px;}
.form .check{display:flex;gap:10px;align-items:flex-start;}
.form .check input{margin-top:4px;flex:none;width:18px;height:18px;}
.form .check label{font-weight:400;margin:0;}
.form .btn-primary{border:0;cursor:pointer;font-size:1rem;}
.form__note{font-size:.85rem;color:var(--grau);margin-top:14px;}
.form__hp{position:absolute !important;left:-9999px !important;width:1px;height:1px;overflow:hidden;}
.form__msg{display:none;padding:16px;border-radius:6px;margin-bottom:18px;}
.form__msg.show{display:block;}
.form__msg--ok{background:#e8f5e9;border:1px solid #a5d6a7;color:#256029;}
.form__msg--err{background:#fdecea;border:1px solid #f5c6c2;color:#a3241b;}
@media(max-width:820px){
  .checklist{grid-template-columns:1fr;}
  .states{grid-template-columns:1fr 1fr;}
}
@media(max-width:520px){.states{grid-template-columns:1fr;}}

/* ============ Footer ============ */
.site-footer{background:var(--blau);color:#fff;padding:60px 20px 30px;}
.site-footer__inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:40px;}
.site-footer h3{font-size:1.15rem;font-weight:700;color:#fff;margin-bottom:14px;}
.site-footer p{margin-bottom:8px;line-height:1.65;}
.site-footer a{color:#fff;}
.site-footer a:hover{text-decoration:underline;}
.site-footer__logo{height:64px;width:auto;margin-bottom:18px;}
.site-footer .frow{display:flex;align-items:center;gap:8px;}
.site-footer .frow img{height:18px;width:18px;}
.site-footer__bottom{max-width:1100px;margin:36px auto 0;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.22);display:flex;justify-content:space-between;
  align-items:center;flex-wrap:wrap;gap:12px;font-size:.9rem;}
.site-footer__bottom a{margin:0 2px;}
@media(max-width:820px){
  .site-footer__inner{grid-template-columns:1fr;gap:32px;}
  .site-footer__bottom{flex-direction:column;text-align:center;}
}

/* Enger Desktop-Bereich: Sticky-Nav kompakter, damit einzeilig */
@media(min-width:1025px) and (max-width:1183px){
  body.scrolled .mainnav__links a{font-size:0.9rem;padding:8px;}
  body.scrolled .mainnav__links a::after{left:8px;right:8px;}
  body.scrolled .mainnav__btn {font-size:0.9rem;}
}

/* ============ Mobile / Tablet (Hamburger) ============ */
@media(max-width:1024px){
  .topbar{display:none;}
  .hero::before{display:none;}
  .mainnav{position:fixed;top:0;background:transparent;box-shadow:none;}
  .mainnav__logo{opacity:1;max-width:200px;}
  .mainnav__logo img{height:38px;}
  .mainnav__btn{display:none;}
  .mainnav__mobicons{display:flex;}
  .mainnav__toggle{display:flex;}
  .mainnav__toggle span{background:#fff;}
  .only-mobile{display:block;}

  /* Menue offen ODER gescrollt -> weisse Leiste + dunkle Elemente */
  body.mobile-open .mainnav{background:#fff;box-shadow:0 2px 14px rgba(0,0,0,.12);}
  body.scrolled .mainnav__toggle span,
  body.mobile-open .mainnav__toggle span{background:var(--blau);}

  /* Burger-Panel: immer zwei Spalten (links Sektionen, rechts Seiten), darunter Kontaktdaten */
  .mainnav__links{position:fixed;top:var(--nav-h);left:0;right:0;
    display:grid;grid-template-columns:1fr 1fr;grid-auto-flow:dense;align-content:start;
    background:#fff;box-shadow:0 14px 20px rgba(0,0,0,.15);
    max-height:0;overflow:hidden;padding:0;transition:max-height .35s ease;}
  body.mobile-open .mainnav__links{max-height:calc(100vh - var(--nav-h));overflow:auto;}
  .mainnav__links a{color:var(--dunkel)!important;padding:13px 20px;
    border-bottom:1px solid #eee;font-size:1.02rem;border-radius:0;text-shadow:none;}
  .mainnav__links a::after{display:none;}
  .mainnav__links a:not(.only-mobile){grid-column:1;}
  .mainnav__links a.only-mobile:not(.mnav-contact){grid-column:2;}
  .mainnav__links a.mnav-contact{grid-column:2;display:flex;align-items:center;gap:10px;
    color:var(--blau)!important;font-weight:600;}
  .mainnav__links a.mnav-contact img{height:20px;width:20px;}
}

/* Sehr kleine Screens: kompaktere Icons/Hamburger */
@media(max-width:450px){
  .mainnav__mobicons{gap:9px;}
  .mainnav__mobicons img{height:20px;width:20px;}
  .mainnav__toggle {width:26px;}
  .mainnav__toggle[aria-expanded="false"] {gap:3px}
  .mainnav__toggle span{width:20px;}
  .mainnav__logo{max-width:140px;}
  .mainnav__logo img{height:30px;}
  .mainnav__links a.mnav-contact {font-size: 0.9rem;}
}

/* ============ Unterseiten (Impressum/Datenschutz) ============ */
body.subpage{padding-top:var(--nav-h);}
body.subpage .mainnav{position:fixed;top:0;background:#fff;box-shadow:0 2px 14px rgba(0,0,0,.12);}
body.subpage .mainnav__links a{color:var(--dunkel);text-shadow:none;}
body.subpage .mainnav__logo{opacity:1;max-width:220px;}
body.subpage .mainnav .ico-light{display:none;}
body.subpage .mainnav .ico-dark{display:block;}
.subpage-content{max-width:900px;margin:0 auto;padding:48px 20px 72px;}
.subpage-content h1{color:var(--blau);font-size:2rem;font-weight:800;margin-bottom:22px;}
.subpage-content h2{color:var(--blau);font-size:1.5rem;font-weight:700;margin:34px 0 12px;}
.subpage-content h3{color:var(--dunkel);font-size:1.2rem;font-weight:700;margin:24px 0 8px;}
.subpage-content h4{color:var(--dunkel);font-size:1.05rem;font-weight:700;margin:18px 0 6px;}
.subpage-content h5{font-weight:700;margin:14px 0 6px;}
.subpage-content p{margin-bottom:12px;line-height:1.7;}
.subpage-content ul{margin:0 0 14px 22px;}
.subpage-content li{margin-bottom:6px;line-height:1.6;}
.subpage-content a{color:var(--blau);text-decoration:underline;}
.subpage-aside{margin-top:40px;padding-top:24px;border-top:1px solid #e2e2e2;}