:root {
  --primary: #0A0A0A;  /* deep black base */
  --accent: #00E5FF;  /* neon cyan */
  --accent2: #FF00E6; /* neon magenta */
  --light: #0D0D12;   /* dark futuristic panel */
  --border: #1A1A25;  /* subtle neon-friendly border */
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #E8F8FF;
  background: linear-gradient(135deg, #050505 0%, #0D0D12 40%, #1A0033 100%);
  scroll-behavior: smooth;
}

/* Header */

header {
  position: relative;
  background: url('hero.jpg') center/cover no-repeat;
  color: #fff;
  padding: 120px 20px;
  text-align: center;
}

header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

header .inner {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

header h1 {
  font-size: 3rem;
  margin-bottom: 10px;
}

header p {
  font-size: 1.3rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Sections */

section {
  padding: 80px 20px;
  max-width: 1000px;
  margin: 0 auto;
}

h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: var(--accent2);
}

.subline {
  margin-top: -10px;
  margin-bottom: 30px;
}

/* Navigation */

nav {
  position: fixed;
  top: 12px;
  right: 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 18px;
  background: rgba(0, 0, 0, 0.45);
  border-radius: 999px;
  border: 1px solid var(--accent);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.25);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: opacity .3s ease, transform .3s ease, box-shadow .3s ease;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color .2s ease, text-shadow .3s ease;
}

nav a:hover {
  color: var(--accent2);
  text-shadow: 0 0 6px var(--accent2), 0 0 12px var(--accent2);
}

.nav-toggle {
  position: fixed;
  top: 14px;
  right: 18px;
  z-index: 1100;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  border-radius: 999px;
  padding: 4px 10px;
  display: none;
  cursor: pointer;
}

/* Buttons */

.btn-primary {
  display: inline-block;
  margin-top: 30px;
  padding: 14px 28px;
  background: var(--accent2);
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-size: 1.1rem;
}

/* Angebot – Liste */

.offer-list {
  list-style: none;
  padding: 0;
  margin-top: 25px;
  display: grid;
  gap: 14px;
}

.offer-list li {
  background: rgba(13, 13, 18, 0.7);
  backdrop-filter: blur(6px);
  border: 1px solid var(--accent);
  padding: 14px 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  font-size: 1.05rem;
}

/* Features / Benefits */

.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.feature-box {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(13, 13, 18, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
}

.feature-box p {
  flex-grow: 1;
}

.enhanced .feature-box {
  position: relative;
  padding-top: 70px;
  text-align: center;
}

#benefits .feature-box h3 {
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 10px;
}

/* Icon Styling – vereinheitlicht */

.icon {
  position: absolute;
  top: -26px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(13, 13, 18, 0.9);
  border: 1px solid var(--border);
  border-radius: 50%;
  padding: 10px;
}

.icon svg {
  width: 32px;
  height: 32px;
  stroke-width: 2;
  display: block;
}

/* Ablauf – Timeline */

.timeline {
  display: grid;
  gap: 40px;
  margin-top: 40px;
}

.step {
  display: flex;
  gap: 20px;
  background: rgba(13, 13, 18, 0.7);
  backdrop-filter: blur(6px);
  border: 1px solid var(--accent);
  padding: 20px;
  border-radius: 10px;
}

.circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
}

.step h3 {
  margin: 0;
  font-size: 1.3rem;
  color: var(--accent2);
}

.step p {
  margin-top: 5px;
}

/* CTA */

.cta-section {
  background: rgba(13, 13, 18, 0.7);
  backdrop-filter: blur(6px);
  text-align: center;
  padding: 80px 20px;
}

/* Footer */

footer {
  text-align: center;
  padding: 30px;
  background: #000;
  color: #fff;
  font-size: 0.9rem;
}

/* Responsive */

@media (max-width: 700px) {
  header {
    padding: 90px 16px 70px;
  }

  header h1 {
    font-size: 2.1rem;
  }

  header p {
    font-size: 1rem;
  }

  section {
    padding: 60px 16px;
  }

  .features {
    grid-template-columns: 1fr;
  }

  .timeline {
    gap: 24px;
  }

  .step {
    flex-direction: column;
  }

  nav {
    left: 16px;
    right: 16px;
    top: 60px;
    flex-direction: column;
    align-items: flex-start;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
  }

  .nav-open nav {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-toggle {
    display: block;
  }
}

/* Kontaktbereich – E-Mail Hervorhebung */

.contact-mail {
  color: var(--accent2);
  font-weight: 600;
  text-decoration: none;
}

.contact-mail:hover {
  text-decoration: underline;
}