:root {
  --bg: #0b1220;
  --card: #0f172a;
  --muted: #94a3b8;
  --text: #e2e8f0;
  --brand: #0ea5e9;
  --accent: #a855f7; /* Purple Akzent */
  --ok: #10b981;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(2, 6, 23, .45);
  --shadow-soft: 0 6px 20px rgba(2, 6, 23, .35);
  --maxw: 1100px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Helvetica, Arial;
  background:
    radial-gradient(1200px 700px at 70% -10%, rgba(14,165,233,.18), transparent),
    radial-gradient(900px 600px at -10% 10%, rgba(168,85,247,.14), transparent), /* Purple Gradient */
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--accent); text-decoration: underline; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 28px; }

/* Header */
header {
  position: sticky; top: 0;
  backdrop-filter: blur(6px);
  background: rgba(10,15,28,.5);
  border-bottom: 1px solid rgba(148,163,184,.12);
}
.nav {
  display: flex; justify-content: space-between; align-items: center;
  position: relative; /* Fix: Referenz für absolute nav-menu */
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.logo-badge {
  width: 32px; height: 32px; border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  display: grid; place-items: center;
}
.logo-badge span { font-weight: 900; color: #0b1220; }
nav a { padding: 10px 12px; border-radius: 10px; }
nav a:hover { background: rgba(148,163,184,.12); color: var(--accent); }
.cta {
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #0b1220; font-weight: 700;
  border-radius: 12px; padding: 10px 14px;
}

/* Burger Button */
.menu-toggle {
  display: none;
  border: 1px solid rgba(148,163,184,.25);
  background: rgba(15,23,42,.7);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  z-index: 60; /* bleibt klickbar */
}
.menu-icon {
  width: 22px; height: 2px; background: var(--text);
  display: inline-block; position: relative;
}
.menu-icon::before, .menu-icon::after {
  content: ""; position: absolute; left: 0;
  width: 22px; height: 2px; background: var(--text);
}
.menu-icon::before { top: -6px; }
.menu-icon::after  { top:  6px; }

/* Desktop Navigation */
.nav-menu ul {
  display: flex; align-items: center; gap: 8px;
  list-style: none; margin: 0; padding: 0;
}

/* Hero */
.hero { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; align-items: center; padding-top: 32px; }
.hero-card {
  background: rgba(30,41,59,.7);
  border: 1px solid rgba(148,163,184,.15);
  border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 28px;
}
h1 { font-size: clamp(28px, 4.3vw, 44px); margin: 0 0 10px; }
.sub { color: var(--muted); margin-bottom: 16px; }
.badges { display: flex; gap: 10px; flex-wrap: wrap; }
.badge {
  background: rgba(148,163,184,.12);
  border: 1px solid rgba(148,163,184,.15);
  border-radius: 999px;
  padding: 8px 12px; font-size: 14px;
}

/* Grid & Cards */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: rgba(30,41,59,.7);
  border: 1px solid rgba(148,163,184,.15);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft); padding: 22px;
}
.card h3 { color: var(--accent); }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; counter-reset: step; }
.step {
  padding: 16px; border-radius: var(--radius);
  border: 1px dashed rgba(148,163,184,.25);
  background: rgba(2,6,23,.4); position: relative;
}
.step:before {
  counter-increment: step; content: counter(step);
  position: absolute; top: -12px; left: -12px;
  background: var(--accent); color: #0b1220;
  width: 32px; height: 32px; border-radius: 10px;
  display: grid; place-items: center; font-weight: 900;
}

/* Trust */
.trust { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.kpi {
  padding: 18px; background: rgba(2,6,23,.45);
  border-radius: 16px; text-align: center;
}
.kpi strong { font-size: 28px; display: block; color: var(--accent); }

/* Contact */
form { display: grid; gap: 12px; }
input, textarea {
  background: rgba(15,23,42,.7); color: var(--text);
  border: 1px solid rgba(148,163,184,.25);
  border-radius: 12px; padding: 12px;
}
label { font-weight: 600; }
.note { font-size: 13px; color: var(--muted); }

/* Footer */
footer { border-top: 1px solid rgba(148,163,184,.12); margin-top: 40px; }
.cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.tiny { font-size: 13px; color: var(--muted); }

/* Responsive */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .trust { grid-template-columns: 1fr; }
  .cols { grid-template-columns: 1fr 1fr; }

  .menu-toggle { display: inline-flex; align-items: center; gap: 8px; }
  .nav { gap: 12px; }
  .nav-menu {
    position: absolute; right: 28px; top: 64px;
    background: rgba(15,23,42,.96);
    border: 1px solid rgba(148,163,184,.2);
    border-radius: 14px;
    box-shadow: var(--shadow);
    padding: 10px;
    width: min(92vw, 320px);
    transform-origin: top right;
    transform: scale(.98);
    opacity: 0; pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
    z-index: 50;
  }
  .nav-menu ul { display: grid; gap: 4px; }
  .nav-menu a { display: block; padding: 10px 12px; border-radius: 10px; }
  .nav-menu a.cta { text-align: center; }
  .nav-menu.open {
    opacity: 1; pointer-events: auto; transform: scale(1);
  }

  /* When open, animate hamburger to X */
  .menu-toggle[aria-expanded="true"] .menu-icon { background: transparent; }
  .menu-toggle[aria-expanded="true"] .menu-icon::before {
    top: 0; transform: rotate(45deg);
  }
  .menu-toggle[aria-expanded="true"] .menu-icon::after {
    top: 0; transform: rotate(-45deg);
  }
}

@media (max-width: 640px) {
  .steps { grid-template-columns: 1fr; }
  .cols { grid-template-columns: 1fr; }
}