:root {
  --blue: #0071e3;
  --blue-dark: #005bb5;
  --bg-light: #f7faff;
  --gray: #444;
  --shadow-sm: 0 3px 8px rgba(0, 113, 227, 0.1);
  --shadow-md: 0 8px 20px rgba(0, 113, 227, 0.2);
  --radius: 14px;
}

body {
  font-family: "Segoe UI", Roboto, sans-serif;
  background: #fff;
  color: var(--gray);
  margin: 0;
  line-height: 1.7;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1rem;
  text-align: center;
}

/* Header */
.header {
  background: #fff;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
  box-shadow: var(--shadow-sm);
}

.logo {
  height: 40px;
}

/* Ursprüngliche Desktop-Navigation */
.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
  margin: 0;
  padding: 0;
  white-space: nowrap;
}

.main-nav a {
  color: var(--gray);
  font-weight: 500;
  text-decoration: none;
  position: relative;
  padding: 0.5rem 0;
}

.main-nav a::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  background: var(--blue);
  bottom: -4px;
  left: 0;
  transition: width 0.3s ease;
}

.main-nav a:hover::after,
.main-nav a:focus::after {
  width: 100%;
}

/* Responsive Anpassung bei kleinen Bildschirmen */
@media (max-width: 768px) {
  /* Nav Wrapper: Logo, Nav und Button untereinander */
  .nav-wrapper {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  /* Navigation als Spalte */
  .main-nav ul {
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    padding-left: 0;
    margin: 0;
  }

  .main-nav li {
    width: 100%;
  }

  /* Nav Links block, volle Breite, besser klickbar */
  .main-nav a {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1.1rem;
    white-space: normal; /* Zeilenumbruch möglich */
    box-sizing: border-box;
  }

  /* Kontakt-Button volle Breite und passend innen */
  .btn-contact {
    width: 100%;
    padding: 0.75rem 1rem;
    text-align: center;
    white-space: normal;
    box-sizing: border-box;
    margin-left: 0; /* Linken Abstand entfernen */
  }
}


.btn-contact {
  background: var(--blue);
  color: #FFFFFF !important;
  padding: 0.6rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  transition: background 0.3s ease;
}

.btn-contact:hover {
  background: var(--blue-dark);
}

/* Hero Section */
.hero {
  padding: 6rem 1rem 4rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin-bottom: 1.2rem;
  color: #111;
}

.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto 2rem;
  color: #666;
}

.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 0.75rem 2rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: background 0.3s;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  margin: 1rem 0.5rem 0;
}

.btn-primary:hover {
  background: var(--blue-dark);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--blue);
  color: var(--blue);
}

.btn-secondary:hover {
  background: var(--blue);
  color: #fff;
}

/* Leistungen */
.leistung-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2.5rem;
  margin-top: 3rem;
}

.leistung-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform 0.3s ease;
}

.leistung-card:hover {
  transform: translateY(-6px);
}
.nav-toggle {
  display: none; /* Desktop verstecken */
  background: transparent;
  border: 2px solid var(--blue);
  color: var(--blue);
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
  user-select: none;
  width: max-content;
}

.nav-toggle::after {
  content: "▼"; /* kleiner Pfeil */
  display: inline-block;
  margin-left: 0.5rem;
  font-size: 0.7rem;
  transition: transform 0.3s ease;
  vertical-align: middle;
}

.nav-toggle[aria-expanded="true"]::after {
  transform: rotate(180deg);
}

.nav-toggle:hover,
.nav-toggle:focus {
  background-color: var(--blue);
  color: white;
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.4);
  outline: none;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: inline-block;
    margin-bottom: 1rem;
    align-self: flex-start; /* wenn im flex-container */
  }

  .main-nav {
    display: none;
    width: 100%;
  }

  .main-nav.active {
    display: block;
  }
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  position: relative;
}

/* Desktop: Menü-Button ausblenden */
.nav-toggle {
  display: none;
}

/* Mobile: Flex anpassen, Button rechts oben */
@media (max-width: 768px) {
  .nav-wrapper {
    flex-wrap: wrap; /* damit Elemente umbrechen */
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
  }

  /* Menü Button anzeigen und rechts ausrichten */
  .nav-toggle {
    display: inline-block;
    order: 2; /* Button an zweiter Stelle */
    background: transparent;
    border: 2px solid var(--blue);
    color: var(--blue);
    padding: 0.5rem 1.2rem;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
    user-select: none;
    align-self: flex-start; /* Oben ausrichten */
  }

  .nav-toggle:hover,
  .nav-toggle:focus {
    background-color: var(--blue);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 113, 227, 0.4);
    outline: none;
  }

  /* Navigation standardmäßig ausblenden */
  .main-nav {
    order: 3; /* Nach Button */
    width: 100%;
    display: none;
  }

  /* Navigation sichtbar wenn aktiv */
  .main-nav.active {
    display: block;
  }

  /* Menü-Liste vertikal */
  .main-nav ul {
    flex-direction: column;
    gap: 1rem;
    padding-left: 0;
    margin: 0;
  }

  .main-nav li {
    width: 100%;
  }

  /* Links full width */
  .main-nav a {
    display: block;
    width: 100%;
    padding: 0.75rem 0;
    font-size: 1.1rem;
    white-space: normal;
  }

  /* Button-Link in der Navigation optisch anpassen */
  .main-nav a.btn-contact {
    background: var(--blue);
    color: white;
    border-radius: var(--radius);
    padding: 0.75rem 0;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    text-align: center;
    display: block;
  }

  .main-nav a.btn-contact:hover {
    background: var(--blue-dark);
  }
}

.leistung-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 1rem;
}

.leistung-extra {
  background: var(--bg-light);
  padding: 2rem;
  border-radius: var(--radius);
  margin-top: 4rem;
  box-shadow: var(--shadow-sm);
}

/* USP Grid (Why Kiekenbeck) */
.usp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.usp-card {
  background: var(--bg-light);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease;
}

.usp-card:hover {
  transform: translateY(-5px);
}

.usp-card img {
  width: 48px;
  margin-bottom: 1rem;
}

.usp-card h3 {
  color: var(--blue-dark);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.usp-card p {
  color: #333;
}

/* CTA Section */
.cta {
  margin-top: 4rem;
}

.cta h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--blue);
}

.cta p {
  font-size: 1.1rem;
  color: #555;
}

/* Footer */
.footer {
  background: #f5f7fa;
  padding: 2rem 1rem;
  text-align: center;
  font-size: 0.9rem;
  color: #666;
}

.footer a {
  color: var(--blue);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* Scroll-Animation Effekt */
@keyframes spin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.scroll-rotate {
  animation: spin 40s linear infinite;
  will-change: transform;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-wrapper {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 1rem;
  }

  .btn-contact {
    margin-left: 0;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

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

  .usp-grid {
    grid-template-columns: 1fr;
  }
}
.scroll-background-icon {
  position: absolute;
  opacity: 0.08;
  animation: spin 60s linear infinite;
  pointer-events: none;
}
.leistung-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  max-width: 900px;
  margin: 3rem auto;
}

.leistung-card {
  background: #fff;
  border-radius: 14px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.leistung-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.shadow-strong {
  box-shadow: 0 12px 28px rgba(0, 113, 227, 0.15);
}
@media (max-width: 768px) {
  .leistung-grid {
    grid-template-columns: 1fr;
  }
}
.fakten-grid {
  margin-top: 4rem;
  text-align: center;
}

.fakten-grid h2 {
  font-size: 2rem;
  color: #005bb5;
  margin-bottom: 2rem;
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  justify-content: center;
}

.grid-cards .card {
  background: var(--bg-light);
  padding: 1.8rem;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
}

.grid-cards .card:hover {
  transform: translateY(-5px);
}

.grid-cards span {
  font-size: 2rem;
  display: block;
  margin-bottom: 1rem;
}

.grid-cards h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: #0071e3;
}

.grid-cards p {
  font-size: 0.95rem;
  color: #444;
}
/* Standard: nav sichtbar */
.main-nav {
  display: block;
}

/* Toggle Button verstecken auf Desktop */
.nav-toggle {
  display: none;
  background: var(--blue);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
}

/* Auf kleinen Bildschirmen */
@media (max-width: 768px) {
  /* Button zeigen */
  .nav-toggle {
    display: inline-block;
    margin-bottom: 1rem;
  }

  /* Navigation standardmäßig verstecken */
  .main-nav {
    display: none;
    width: 100%;
  }

  /* Navigation sichtbar, wenn aktives state */
  .main-nav.active {
    display: block;
  }
}