:root {
  --bg:#020617;
  --card:#0f172a;
  --accent:#7CFF4E;
  --text:#ffffff;
  --muted:#9ca3af;
}

body {
  margin:0;
  font-family:'Inter', sans-serif;
  background: radial-gradient(circle at top, #0f172a, #020617);
  color:var(--text);
}

/* Layout */
.container {
  width:90%;
  max-width:1200px;
  margin:auto;
}

/* Header */
header {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:20px 0;
}

.logo {
  font-weight:800;
  font-size:20px;
}

header a {
  color:var(--muted);
  text-decoration:none;
  margin-left:15px;
}

header a:hover {
  color:white;
}

/* Hero */
.hero {
  text-align:center;
  padding:140px 0;
}

.hero h1 {
  font-size:52px;
  line-height:1.2;
  margin-bottom:20px;
}

.hero p {
  color:var(--muted);
  font-size:18px;
}

/* Button */
.btn {
  display:inline-block;
  margin-top:30px;
  padding:14px 26px;
  background:var(--accent);
  color:black;
  border-radius:8px;
  font-weight:600;
  text-decoration:none;
  transition:0.3s;
}

.btn:hover {
  box-shadow:0 0 20px var(--accent);
  transform:translateY(-2px);
}

/* Sections */
.section {
  padding:100px 0;
}

.section h2 {
  text-align:center;
  margin-bottom:40px;
}

/* Grid */
.grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:25px;
}

/* Cards */
.card {
  background:var(--card);
  padding:30px;
  border-radius:20px;
  border:1px solid rgba(255,255,255,0.1);
  transition:0.3s;
}

.card:hover {
  transform:translateY(-8px);
  box-shadow:0 20px 60px rgba(0,0,0,0.6);
}

.card h3 {
  margin-top:0;
}

/* Glow Effekt */
.glow {
  position:absolute;
  width:600px;
  height:600px;
  background:radial-gradient(circle, rgba(124,255,78,0.15), transparent);
  top:-200px;
  left:50%;
  transform:translateX(-50%);
  filter:blur(120px);
  z-index:-1;
}

/* Kontaktformular */
form {
  max-width:500px;
  margin:auto;
}

input, textarea {
  width:100%;
  padding:12px;
  margin-bottom:15px;
  border-radius:8px;
  border:none;
  background:#111827;
  color:white;
}

button {
  width:100%;
}

/* Footer */
footer {
  text-align:center;
  padding:40px;
  color:var(--muted);
}

/* Responsive */
@media(max-width:900px) {
  .grid {
    grid-template-columns:1fr;
  }

  .hero h1 {
    font-size:32px;
  }
}