/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Open Sans', sans-serif;
  line-height: 1.6;
  color: #333;
  background: #ffffff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Navigation */
.nav {
  background: linear-gradient(135deg, #0047AB 0%, #40E0D0 100%);
  box-shadow: 0 4px 20px rgba(0, 71, 171, 0.15);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo img {
  height: 50px;
  transition: transform 0.3s ease;
}

.nav-logo:hover img {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: white;
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.nav-link.active {
  background: rgba(255, 255, 255, 0.2);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: white;
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Hero Section */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 71, 171, 0.7) 0%, rgba(64, 224, 208, 0.5) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
  max-width: 800px;
  padding: 0 2rem;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2rem;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
  line-height: 1.2;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 3rem;
  opacity: 0.95;
  font-weight: 500;
}

.hero-features {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.feature-icon {
  font-size: 1.2rem;
}

.hero-cta {
  display: inline-block;
  background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
  color: #333;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(255, 215, 0, 0.3);
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(255, 215, 0, 0.4);
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: #0047AB;
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
  color: #666;
  max-width: 600px;
  margin: 0 auto;
}

/* Products Section */
.products {
  padding: 5rem 0;
  background: #f8fafe;
}

.products-filter {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  border: 2px solid #0047AB;
  background: white;
  color: #0047AB;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
  background: #0047AB;
  color: white;
  transform: translateY(-2px);
}

.loading-state,
.error-state {
  text-align: center;
  padding: 4rem 2rem;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid #e3f2fd;
  border-top: 4px solid #0047AB;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 2rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.error-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.retry-btn {
  background: #0047AB;
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  margin-top: 1rem;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.product-card {
  background: white;
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 10px 40px rgba(0, 71, 171, 0.1);
  transition: all 0.3s ease;
  border: 1px solid rgba(0, 71, 171, 0.1);
  position: relative;
  overflow: hidden;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 60px rgba(0, 71, 171, 0.15);
}

.product-card.featured {
  border: 2px solid #FFD700;
  transform: scale(1.05);
}

.product-card.featured::before {
  content: "Beliebt";
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: #FFD700;
  color: #333;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
}

.product-card.on-sale::after {
  content: "Im Angebot";
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: #ff4444;
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
}

.product-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.product-name {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: #0047AB;
  margin-bottom: 0.5rem;
}

.product-data {
  font-size: 2rem;
  font-weight: 800;
  color: #40E0D0;
  margin-bottom: 0.25rem;
}

.product-duration {
  color: #666;
  font-size: 0.9rem;
}

.product-features {
  margin-bottom: 2rem;
}

.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.feature-tag {
  background: #e3f2fd;
  color: #0047AB;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.product-price {
  text-align: center;
  margin-bottom: 1.5rem;
}

.price-current {
  font-size: 2rem;
  font-weight: 800;
  color: #0047AB;
}

.price-original {
  text-decoration: line-through;
  color: #999;
  font-size: 1.2rem;
  margin-left: 0.5rem;
}

.product-cta {
  width: 100%;
  background: linear-gradient(135deg, #0047AB 0%, #40E0D0 100%);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.product-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 71, 171, 0.3);
}

/* Benefits Section */
.benefits {
  padding: 5rem 0;
  background: white;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.benefit-card {
  text-align: center;
  padding: 2rem;
  border-radius: 16px;
  background: #f8fafe;
  transition: all 0.3s ease;
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 71, 171, 0.1);
}

.benefit-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.benefit-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: #0047AB;
  margin-bottom: 1rem;
}

.benefit-card p {
  color: #666;
  line-height: 1.6;
}

/* How it Works Section */
.how-it-works {
  padding: 5rem 0;
  background: linear-gradient(135deg, #0047AB 0%, #40E0D0 100%);
  color: white;
}

.how-it-works .section-header h2 {
  color: white;
}

.how-it-works .section-header p {
  color: rgba(255, 255, 255, 0.9);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.2);
  border: 3px solid white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  margin: 0 auto 2rem;
  backdrop-filter: blur(10px);
}

.step h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.step p {
  font-size: 1.1rem;
  opacity: 0.9;
  line-height: 1.6;
}

/* FAQ Section */
.faq {
  padding: 5rem 0;
  background: #f8fafe;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border-radius: 12px;
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 71, 171, 0.05);
}

.faq-question {
  padding: 1.5rem 2rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

.faq-question:hover {
  background: #f8fafe;
}

.faq-question h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  color: #0047AB;
  margin: 0;
}

.faq-toggle {
  font-size: 1.5rem;
  font-weight: 300;
  color: #0047AB;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 2rem;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
  padding: 0 2rem 1.5rem;
  max-height: 200px;
}

.faq-answer p {
  color: #666;
  line-height: 1.6;
}

/* CTA Section */
.cta-section {
  padding: 5rem 0;
  background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
  text-align: center;
}

.cta-content h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  color: #333;
  margin-bottom: 1rem;
}

.cta-content p {
  font-size: 1.2rem;
  color: #555;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-block;
  background: #0047AB;
  color: white;
  padding: 1.25rem 3rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(0, 71, 171, 0.3);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 71, 171, 0.4);
}

/* Footer */
.footer {
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  margin-bottom: 1rem;
  font-size: 1.2rem;
  font-weight: 600;
}

.footer-section p {
  line-height: 1.6;
  opacity: 0.9;
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section ul li a:hover {
  color: #40E0D0;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-bottom p {
  opacity: 0.8;
  margin: 0.5rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero {
    height: 80vh;
    min-height: 500px;
  }
  
  .hero-content {
    padding: 0 1rem;
  }
  
  .hero-features {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  
  .section-header h2 {
    font-size: 2rem;
  }
  
  .products-filter {
    flex-direction: column;
    align-items: center;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  
  .steps {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .section-header h2 {
    font-size: 1.8rem;
  }
  
  .product-card {
    padding: 1.5rem;
  }
  
  .benefit-card {
    padding: 1.5rem;
  }
  
  .container {
    padding: 0 0.5rem;
  }
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}