:root{
  --bg:#0b0d12;
  --text:#f4f7ff;
  --shadow: 0 20px 60px rgba(0,0,0,.45);
}

*{box-sizing:border-box}
html,body{height:100%; margin:0}
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color:var(--text);
  background: var(--bg);
}

a{color:inherit; text-decoration:none}

.hero{
  min-height:100vh;
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}

/* Hintergrundbild (BITTE hero.jpg ohne Text verwenden) */
.hero::before{
  content:"";
  position:absolute; inset:0;
  background-image: url("hero.jpg");
  background-size: cover;
  background-position: center;
  filter: saturate(1.05) contrast(1.05);
  transform: scale(1.02);
}

/* Abdunklung: Buttons müssen immer lesbar sein */
.hero::after{
  content:"";
  position:absolute; inset:0;
  background:
    radial-gradient(900px 520px at 55% 50%, rgba(0,0,0,.20), rgba(0,0,0,.66)),
    linear-gradient(to top, rgba(0,0,0,.76), rgba(0,0,0,.18));
}

.container{
  width:min(1120px, 92%);
  margin:0 auto;
  position:relative;
  z-index:2;
}

/* Topbar */
.topbar{
  position:absolute;
  top:18px; left:0; right:0;
  z-index:3;
}

.topbar-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
}

/* Logo oben links */
.logo-only{
  display:flex;
  align-items:center;
  padding:10px 12px;
  border-radius:16px;
  background: rgba(12,14,18,.35);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(10px);
}

.logo-only img{
  width:46px;
  height:auto;
  display:block;
}

/* Sprache */
.lang{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:16px;
  background: rgba(12,14,18,.35);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(10px);
  font-weight:800;
  letter-spacing:.3px;
}

.lang a{
  color: rgba(244,247,255,.75);
  padding:6px 10px;
  border-radius:999px;
  border:1px solid transparent;
}
.lang a.active{
  color: var(--text);
  border-color: rgba(255,255,255,.22);
  background: rgba(255,255,255,.10);
}

/* Center: Buttons only */
.center{
  text-align:center;
  padding: 140px 0 90px;
}

.cta{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  justify-content:center;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:16px 20px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.20);
  background: rgba(12,14,18,.38);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  font-weight:900;
  letter-spacing:.2px;
  min-width: 220px;
}

.btn.primary{
  border-color: rgba(125,211,252,.55);
  background: linear-gradient(135deg, rgba(125,211,252,.25), rgba(167,139,250,.20));
}

.btn:hover{filter: brightness(1.06); transform: translateY(-1px)}
.btn:active{transform: translateY(0px)}

/* Footer links */
.bottom{
  position:absolute;
  bottom:18px; left:0; right:0;
  z-index:3;
}

.bottom-row{
  display:flex;
  justify-content:center;
  gap:18px;
  flex-wrap:wrap;
  color: rgba(244,247,255,.78);
}

.bottom-row a{
  padding:8px 10px;
  border-radius:12px;
  background: rgba(12,14,18,.25);
  border:1px solid rgba(255,255,255,.10);
  backdrop-filter: blur(10px);
}

@media (max-width: 520px){
  .btn{min-width: 180px}
  .center{padding: 130px 0 90px}
}