/* ===== Tokens ===== */
:root{
  --blue-950:#041c4d;
  --blue-900:#0a2a6b;
  --blue-800:#123c8f;
  --blue-700:#1a4fb0;
  --blue-600:#2563d6;
  --blue-500:#3b82f6;
  --blue-400:#60a5fa;
  --blue-300:#93c5fd;
  --blue-200:#bfdbfe;
  --blue-100:#e3edff;
  --steel-50:#f4f8ff;
  --white:#ffffff;
  --ink:#0b1a33;
  --ink-soft:#3c5170;
  --line:#d7e3f7;

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius: 18px;
  --container: 1180px;

  --ease: cubic-bezier(.22,.9,.24,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; overflow-x:hidden; width:100%; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--steel-50);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3{ font-family:var(--font-display); margin:0; line-height:1.08; }
p{ margin:0 0 1rem; color:var(--ink-soft); line-height:1.65; }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
.container{ max-width:var(--container); margin:0 auto; padding:0 24px; }

/* ===== Progress bar ===== */
.progress-bar{
  position:fixed; top:0; left:0; height:3px; width:0%;
  background:linear-gradient(90deg,var(--blue-500),var(--blue-300));
  z-index:1000; transition:width .1s linear;
}

/* ===== Reveal animation ===== */
.reveal{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.in-view{ opacity:1; transform:translateY(0); }

/* ===== Header ===== */
.site-header{
  position:fixed; top:18px; left:18px; right:18px; z-index:900;
  max-width:1080px; margin:0 auto;
  border-radius:999px;
  background:rgba(255,255,255,.78);
  border:1px solid rgba(255,255,255,.6);
  backdrop-filter:blur(16px) saturate(160%);
  box-shadow:0 12px 34px rgba(10,42,107,.16), inset 0 1px 0 rgba(255,255,255,.6);
  padding:8px 10px 8px 22px;
  transition:box-shadow .3s ease, background .3s ease, top .3s ease, padding .3s ease;
}
.site-header.scrolled{
  top:12px;
  background:rgba(255,255,255,.94);
  box-shadow:0 14px 38px rgba(10,42,107,.22), inset 0 1px 0 rgba(255,255,255,.7);
}
.header-inner{
  margin:0 auto;
  display:flex; align-items:center; justify-content:space-between;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{
  height:42px; padding:0 10px; border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg,var(--blue-300) 0%, var(--blue-600) 45%, var(--blue-900) 100%);
  box-shadow:0 4px 14px rgba(37,99,214,.35), inset 0 1px 0 rgba(255,255,255,.5);
}
.brand-mark img{
  height:26px; width:auto; display:block;
  filter:brightness(0) invert(1);
}
.brand-mark.small{ height:34px; padding:0 8px; }
.brand-mark.small img{ height:20px; }
.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-text strong{ font-family:var(--font-display); font-size:1rem; color:var(--ink); }
.brand-text small{ font-size:.72rem; color:var(--ink-soft); letter-spacing:.04em; text-transform:uppercase; }

.main-nav ul{ list-style:none; display:flex; align-items:center; gap:2px; margin:0; padding:0; }
.nav-link{
  display:inline-block; padding:10px 16px; border-radius:999px;
  font-size:.92rem; font-weight:500; color:var(--ink-soft);
  transition:background .25s, color .25s;
}
.nav-link:hover{ background:var(--blue-100); color:var(--blue-800); }
.nav-link.nav-cta:hover{ background:linear-gradient(135deg,var(--blue-500),var(--blue-800)); color:var(--white); filter:brightness(1.1); }
.nav-cta{
  color:var(--white) !important;
  background:linear-gradient(135deg,var(--blue-500),var(--blue-800));
  box-shadow:0 6px 18px rgba(37,99,214,.35);
}
.nav-cta:hover{ filter:brightness(1.08); }

.nav-toggle{
  display:none; position:relative; z-index:950;
  width:44px; height:44px; border:none; background:transparent;
  cursor:pointer; padding:0;
}
.nav-toggle span{
  display:block; width:24px; height:2px; margin:5px auto;
  background:var(--ink); border-radius:2px;
  transition:transform .35s var(--ease), opacity .25s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

.nav-scrim{
  position:fixed; inset:0; background:rgba(4,20,60,.35);
  backdrop-filter:blur(2px);
  opacity:0; pointer-events:none; transition:opacity .3s ease; z-index:850;
}
.nav-scrim.active{ opacity:1; pointer-events:auto; }

/* ===== Hero ===== */
.hero{
  position:relative; overflow:hidden;
  min-height:100vh; display:flex; align-items:center;
  padding:150px 0 90px;
  background:var(--blue-900);
}
.hero-video{
  position:absolute; inset:0; z-index:0;
  width:100%; height:100%;
  object-fit:cover; object-position:center;
  background:var(--blue-900);
}
.hero-metal{
  position:absolute; inset:0; z-index:1;
  background:
    linear-gradient(100deg,
      rgba(4,28,77,.92) 0%,
      rgba(10,42,107,.72) 32%,
      rgba(10,42,107,.32) 58%,
      rgba(10,42,107,.08) 78%,
      rgba(10,42,107,0) 100%),
    linear-gradient(0deg,
      rgba(4,28,77,.55) 0%,
      rgba(4,28,77,0) 35%);
}
.hero-grain{
  position:absolute; inset:0; z-index:1; pointer-events:none;
  opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E");
}
.hero-content{ position:relative; z-index:2; max-width:760px; }
.eyebrow{
  text-transform:uppercase; letter-spacing:.14em; font-size:.78rem;
  font-weight:600; color:var(--blue-100);
  margin-bottom:18px;
}
.hero-title{
  font-size:clamp(2.4rem, 5.4vw, 4.1rem);
  color:var(--white);
  font-weight:700;
  text-shadow:0 2px 30px rgba(4,28,77,.35);
}
.hero-sub{
  color:var(--blue-100);
  max-width:560px;
  font-size:1.05rem;
  margin-top:22px;
}

/* rotator */
.rotator{
  display:flex; align-items:center; gap:.65em; flex-wrap:wrap;
  margin-top:24px;
  font-family:var(--font-display);
}
.rotator-lead{ color:var(--blue-200); font-size:1.05rem; font-weight:500; }
.rotator-badge{
  display:inline-grid; place-items:center;
  padding:.6em 1.4em;
  border-radius:999px;
  border:1.5px solid rgba(255,255,255,.55);
  background:rgba(255,255,255,.08);
  backdrop-filter:blur(6px);
}
.rotator-word{
  grid-area:1 / 1;
  opacity:0;
  transform:translateY(6px);
  transition:opacity .22s ease, transform .22s ease;
  font-size:1.05rem; font-weight:700;
  color:var(--white);
  text-align:center;
  white-space:nowrap;
  max-width:min(78vw, 420px);
  overflow-wrap:break-word;
  white-space:normal;
}
.rotator-word.active{ opacity:1; transform:translateY(0); }

.hero-actions{ display:flex; gap:14px; margin-top:38px; flex-wrap:wrap; }
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:15px 30px; border-radius:999px;
  font-weight:600; font-size:.95rem;
  border:1px solid transparent; cursor:pointer;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, color .25s;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{
  color:var(--blue-950);
  background:linear-gradient(135deg,var(--white),var(--blue-100));
  box-shadow:0 10px 30px rgba(4,28,77,.25);
}
.btn-primary:hover{ box-shadow:0 14px 36px rgba(4,28,77,.32); }
.btn-ghost{
  color:var(--white);
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.4);
}
.btn-ghost:hover{ background:rgba(255,255,255,.16); }
.btn-block{ width:100%; }

/* ===== Sections ===== */
.section{ padding:120px 0; position:relative; }
.section-eyebrow{
  text-transform:uppercase; letter-spacing:.14em; font-size:.78rem;
  font-weight:700; color:var(--blue-600); margin-bottom:14px;
}
.section-title{
  font-size:clamp(1.8rem, 3.4vw, 2.6rem); margin-bottom:20px; max-width:720px;
}
.section-lead{ max-width:640px; font-size:1.05rem; }

.section-dark{
  background:linear-gradient(160deg,var(--blue-900), var(--blue-950));
  color:var(--white); overflow:hidden; position:relative;
}
.section-dark .hero-grain{ opacity:.35; }
.section-dark .section-title{ color:var(--white); }
.section-dark .section-lead{ color:var(--blue-100); }
.section-dark .section-eyebrow{ color:var(--blue-300); }

/* card grid */
.card-grid{
  margin-top:50px;
  display:grid; grid-template-columns:repeat(3,1fr); gap:26px;
}
.service-card{
  position:relative;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px 28px;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
  overflow:hidden;
}
.service-card::before{
  content:""; position:absolute; inset:0; opacity:0;
  background:linear-gradient(135deg,var(--blue-100),transparent 60%);
  transition:opacity .35s ease;
}
.service-card:hover{
  transform:translateY(-6px);
  box-shadow:0 20px 40px rgba(10,42,107,.12);
  border-color:var(--blue-300);
}
.service-card:hover::before{ opacity:1; }
.service-index{
  position:relative; display:inline-block;
  font-family:var(--font-display); font-weight:700; font-size:.85rem;
  color:var(--blue-500); margin-bottom:16px;
}
.service-card h3{ position:relative; font-size:1.15rem; margin-bottom:10px; color:var(--ink); }
.service-card p{ position:relative; font-size:.95rem; margin:0; }

/* qualifikation */
.quali-grid{
  margin-top:50px;
  display:grid; grid-template-columns:repeat(4,1fr); gap:22px;
}
.quali-item{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);
  padding:28px 24px;
  backdrop-filter:blur(6px);
  transition:transform .35s var(--ease), background .35s;
}
.quali-item:hover{ transform:translateY(-6px); background:rgba(255,255,255,.1); }
.quali-icon{
  display:inline-flex; align-items:center; justify-content:center;
  width:38px; height:38px; border-radius:10px; margin-bottom:16px;
  font-family:var(--font-display); font-weight:700; font-size:.85rem;
  background:linear-gradient(135deg,var(--blue-300),var(--blue-600));
  color:var(--blue-950);
}
.quali-item h3{ font-size:1.05rem; margin-bottom:8px; color:var(--white); }
.quali-item p{ font-size:.9rem; color:var(--blue-100); margin:0; }

/* timeline */
.timeline{ position:relative; margin-top:60px; padding-left:36px; }
.timeline-line{
  position:absolute; left:7px; top:0; bottom:0; width:2px;
  background:var(--line);
}
.timeline-line::after{
  content:""; position:absolute; left:0; top:0; width:100%; height:0%;
  background:linear-gradient(var(--blue-300),var(--blue-700));
  transition:height 1.2s var(--ease);
}
.timeline-line.drawn::after{ height:100%; }
.timeline-item{ position:relative; padding-bottom:44px; }
.timeline-item:last-child{ padding-bottom:0; }
.timeline-dot{
  position:absolute; left:-36px; top:4px; width:16px; height:16px; border-radius:50%;
  background:var(--white); border:3px solid var(--blue-500);
  box-shadow:0 0 0 4px rgba(59,130,246,.15);
}
.timeline-card{
  background:var(--white); border:1px solid var(--line); border-radius:14px;
  padding:22px 26px;
}
.timeline-year{
  display:inline-block; font-size:.78rem; font-weight:700; letter-spacing:.06em;
  text-transform:uppercase; color:var(--blue-600); margin-bottom:6px;
}
.timeline-card h3{ font-size:1.05rem; margin-bottom:6px; }
.timeline-card p{ font-size:.92rem; margin:0; }

/* split / ueber */
.split-grid{
  display:grid; grid-template-columns:.8fr 1.2fr; gap:70px; align-items:center;
}
.visual-plate{
  aspect-ratio:1/1; border-radius:28px; position:relative; overflow:hidden;
  background:linear-gradient(135deg,var(--blue-200), var(--blue-600) 55%, var(--blue-950));
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 30px 60px rgba(10,42,107,.2);
}
.visual-plate.has-texture::after{
  content:""; position:absolute; inset:0;
  background:repeating-linear-gradient(115deg, rgba(255,255,255,.12) 0 2px, transparent 2px 6px);
  mix-blend-mode:overlay;
  pointer-events:none;
}
.visual-photo{
  position:relative; z-index:0;
  width:100%; height:100%;
  object-fit:cover; object-position:center 25%;
}
.visual-mark{
  position:relative; z-index:1;
  width:62%; height:auto;
  filter:brightness(0) invert(1) drop-shadow(0 6px 30px rgba(4,28,77,.4));
  opacity:.92;
}
.stat-row{ display:flex; gap:40px; margin-top:30px; }
.stat{ display:flex; flex-direction:column; }
.stat strong{ font-family:var(--font-display); font-size:2rem; color:var(--blue-700); }
.stat span{ font-size:.85rem; color:var(--ink-soft); }

/* kontakt */
.kontakt-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:70px; align-items:start; }
.kontakt-email{
  display:inline-block; margin-top:8px; font-size:1.15rem; font-weight:700;
  color:var(--white); border-bottom:2px solid var(--blue-400); padding-bottom:4px;
}
.kontakt-form{
  background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius); padding:34px; backdrop-filter:blur(6px);
}
.form-row{ margin-bottom:18px; display:flex; flex-direction:column; gap:8px; }
.form-row label{ font-size:.85rem; font-weight:600; color:var(--blue-100); }
.form-row input, .form-row textarea{
  background:rgba(255,255,255,.94);
  border:1px solid transparent; border-radius:10px;
  padding:13px 14px; font-family:var(--font-body); font-size:.95rem; color:var(--ink);
  resize:vertical; transition:box-shadow .2s, border-color .2s;
}
.form-row input:focus, .form-row textarea:focus{
  outline:none; border-color:var(--blue-400);
  box-shadow:0 0 0 4px rgba(96,165,250,.25);
}
.form-note{ font-size:.78rem; color:var(--blue-200); margin:12px 0 0; text-align:center; }
.hp-field{
  position:absolute !important; left:-9999px !important; top:-9999px !important;
  width:1px; height:1px; overflow:hidden; margin:0 !important; padding:0 !important;
}
.form-status{
  min-height:1.2em; margin:14px 0 0; text-align:center; font-size:.9rem; font-weight:600;
}
.form-status.is-success{ color:#7fe0a8; }
.form-status.is-error{ color:#ffb4b4; }
.form-row input:invalid:not(:placeholder-shown){ border-color:#ff9b9b; }
.btn[disabled]{ opacity:.6; cursor:not-allowed; }

/* footer */
.site-footer{ background:var(--blue-950); color:var(--blue-100); padding:36px 0; }
.footer-inner{
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:16px;
}
.footer-brand{ display:flex; align-items:center; gap:10px; font-weight:600; color:var(--white); }
.footer-nav{ display:flex; gap:22px; flex-wrap:wrap; font-size:.88rem; }
.footer-nav a:hover{ color:var(--white); }
.footer-copy{ margin:0; font-size:.82rem; color:var(--blue-300); width:100%; text-align:center; }

.legal-accordions{
  width:100%; max-width:640px; margin:6px auto 0;
  border-top:1px solid rgba(255,255,255,.14);
}
.legal-accordion{ border-bottom:1px solid rgba(255,255,255,.14); }
.legal-accordion summary{
  cursor:pointer; list-style:none;
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  padding:15px 2px; font-weight:600; font-size:.9rem; color:var(--white);
  -webkit-tap-highlight-color:transparent;
}
.legal-accordion summary::-webkit-details-marker{ display:none; }
.legal-accordion summary::after{
  content:"+"; flex:none; font-size:1.15rem; font-weight:400; color:var(--blue-300);
}
.legal-accordion[open] summary::after{ content:"–"; }
.legal-accordion-body{ padding:0 2px 24px; font-size:.85rem; line-height:1.7; text-align:left; }
.legal-accordion-body h3{ font-size:.88rem; color:var(--white); margin:18px 0 6px; }
.legal-accordion-body h3:first-child{ margin-top:0; }
.legal-accordion-body p{ margin:0 0 10px; color:var(--blue-100); max-width:none; }
.legal-accordion-body a{ color:var(--blue-200); text-decoration:underline; }

/* ===== Responsive ===== */
@media (max-width:980px){
  .card-grid{ grid-template-columns:repeat(2,1fr); }
  .quali-grid{ grid-template-columns:repeat(2,1fr); }
  .split-grid, .kontakt-grid{ grid-template-columns:1fr; gap:44px; }
  .visual-plate{ max-width:280px; margin:0 auto; }
}

@media (max-width:760px){
  .site-header{
    -webkit-backdrop-filter:none; backdrop-filter:none;
  }
  .main-nav{
    position:fixed; top:0; right:0; height:100vh; width:min(340px,86vw);
    background:var(--white);
    box-shadow:-20px 0 60px rgba(10,42,107,.18);
    transform:translate3d(100%,0,0);
    will-change:transform;
    -webkit-backface-visibility:hidden; backface-visibility:hidden;
    transition:transform .4s var(--ease);
    z-index:900; padding:110px 28px 40px;
  }
  .main-nav.open{ transform:translate3d(0,0,0); }
  .main-nav ul{ flex-direction:column; align-items:stretch; gap:6px; }
  .nav-link{ padding:14px 16px; font-size:1.02rem; }
  .nav-cta{ margin-top:12px; text-align:center; }
  .nav-toggle{ display:block; }

  .hero{ padding:120px 0 70px; min-height:auto; }
  .hero-actions{ flex-direction:column; }
  .btn{ width:100%; }

  .section{ padding:80px 0; }
  .card-grid{ grid-template-columns:1fr; }
  .quali-grid{ grid-template-columns:1fr; }
  .stat-row{ gap:26px; flex-wrap:wrap; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .reveal{ transition:none; opacity:1; transform:none; }
  .hero-video{ display:none; }
}