/* Modern CSS Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Root Variables */
:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary-color: #10b981;
  --accent-color: #f59e0b;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --border-color: #e5e7eb;
  --gradient-primary: linear-gradient(135deg, #00006c 0%, #000033 100%);
  --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Typography */
html {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-feature-settings: 'cv11', 'ss01';
  font-variation-settings: 'opsz' auto;
  scroll-behavior: smooth;
  line-height: 1.6;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-logo .logo {
  height: 40px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 15px;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover {
  color: var(--primary-color);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
}

.nav-link:hover::after {
  width: 100%;
}

.cta-button {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.cta-button:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #00006c 0%, #000033 100%);
  color: white;
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: #00FF66;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  opacity: 0.9;
  margin-bottom: 40px;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.primary-button {
  background: var(--bg-primary);
  color: var(--primary-color);
  border: none;
  padding: 16px 32px;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-lg);
}

.primary-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.secondary-button {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
  padding: 14px 30px;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.secondary-button:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 14px;
  opacity: 0.8;
}

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  max-width: 400px;
  width: 100%;
  box-shadow: var(--shadow-xl);
}

.card-header {
  display: flex;
  justify-content: flex-start;
  margin-bottom: 20px;
}

.card-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
}

.dot:nth-child(1) { background: #ff5f57; }
.dot:nth-child(2) { background: #ffbd2e; }
.dot:nth-child(3) { background: #28ca42; }

.card-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.process-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: var(--border-radius);
  transition: var(--transition);
  opacity: 0.6;
}

.process-step.active {
  background: rgba(255, 255, 255, 0.15);
  opacity: 1;
}

.process-step i {
  width: 20px;
  text-align: center;
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-header p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Features Section */
.features {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--bg-primary);
  padding: 32px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: white;
  font-size: 24px;
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Solutions Section */
.solutions {
  padding: 100px 0;
}

.solutions-tabs {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: 48px;
  background: var(--bg-secondary);
  padding: 4px;
  border-radius: var(--border-radius);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.tab-button {
  background: transparent;
  border: none;
  padding: 12px 24px;
  border-radius: calc(var(--border-radius) - 4px);
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.tab-button.active {
  background: var(--bg-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.solution-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.solution-content h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 32px;
  color: var(--text-primary);
}

.solution-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.solution-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.solution-feature i {
  width: 24px;
  height: 24px;
  color: var(--primary-color);
  font-size: 20px;
  margin-top: 4px;
  flex-shrink: 0;
}

.solution-feature h4 {
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.solution-feature p {
  color: var(--text-secondary);
  line-height: 1.5;
}

.solution-visual {
  display: flex;
  justify-content: center;
}

.solution-image {
  width: 100%;
  max-width: 500px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Pricing Section */
.pricing {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-primary);
  padding: 40px 32px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  position: relative;
}

.pricing-card.featured {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lg);
  transform: scale(1.05);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.featured:hover {
  transform: scale(1.05) translateY(-4px);
}

.pricing-header {
  text-align: center;
  margin-bottom: 32px;
  position: relative;
}

.pricing-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-badge {
  background: var(--gradient-primary);
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pricing-features {
  margin-bottom: 32px;
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.pricing-feature i {
  color: var(--secondary-color);
  font-size: 16px;
}

.pricing-button {
  width: 100%;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  padding: 16px;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.pricing-button.primary {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.pricing-button:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.pricing-button.primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

/* CTA Section */
.cta {
  padding: 100px 0;
  background: var(--gradient-primary);
  color: white;
  text-align: center;
}

.cta-content h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  background: var(--text-primary);
  color: white;
  padding: 64px 0 24px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-logo {
  height: 32px;
  margin-bottom: 16px;
}

.footer-description {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  max-width: 400px;
}

.footer-section h4 {
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* Popups */
.popup-overlay,
.contact-popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 20px;
}

.popup-content {
  background: var(--bg-primary);
  padding: 40px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 500px;
  width: 100%;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.popup-close,
.contact-popup-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: var(--transition);
}

.popup-close:hover,
.contact-popup-close:hover {
  color: var(--text-primary);
}

.popup-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.popup-form,
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea {
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 16px;
  transition: var(--transition);
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.popup-form button,
.contact-form button {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 16px;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
}

.popup-form button:hover,
.contact-form button:hover {
  background: var(--primary-dark);
}

.success-message,
.error-message,
.contact-success-message,
.contact-error-message {
  padding: 12px 16px;
  border-radius: var(--border-radius);
  font-weight: 500;
  display: none;
  margin-top: 16px;
}

.success-message,
.contact-success-message {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.error-message,
.contact-error-message {
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-container,
  .solution-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    gap: 16px;
  }
  
  .nav-link {
    font-size: 14px;
  }
  
  .cta-button {
    padding: 10px 20px;
    font-size: 13px;
  }
  
  .hero {
    padding: 100px 0 60px;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-stats {
    gap: 20px;
    justify-content: center;
  }
  
  .features,
  .solutions,
  .pricing,
  .cta {
    padding: 80px 0;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .solutions-tabs {
    flex-direction: column;
    width: 100%;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-card.featured {
    transform: none;
  }
  
  .pricing-card.featured:hover {
    transform: translateY(-4px);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
  }
  
  .popup-content {
    padding: 24px;
    margin: 20px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .nav-container {
    padding: 0 16px;
    height: 70px;
  }
  
  .nav-menu {
    gap: 12px;
  }
  
  .hero {
    padding: 90px 0 50px;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }
  
  .section-header {
    margin-bottom: 48px;
  }
  
  .features,
  .solutions,
  .pricing,
  .cta {
    padding: 60px 0;
  }
}

/* Animation for smooth entrance */
.feature-card,
.pricing-card {
  animation: fadeInUp 0.6s ease-out forwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Focus states for accessibility */
button:focus,
input:focus,
textarea:focus,
.nav-link:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Smooth scrolling enhancement */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* Print styles */
@media print {
  .navbar,
  .popup-overlay,
  .contact-popup-overlay {
    display: none !important;
  }
}

/* Legal Pages (Impressum & Datenschutz) */
.legal-page {
  min-height: 100vh;
  background: var(--bg-secondary);
  padding: 80px 0 0;
}

.legal-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.legal-header {
  text-align: center;
  padding: 60px 0 40px;
  background: var(--gradient-primary);
  color: white;
  margin: 0 -24px 60px;
  border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

.legal-header h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.legal-subtitle {
  font-size: 1.125rem;
  opacity: 0.9;
  font-weight: 400;
}

.legal-content {
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
}

.legal-section {
  margin-bottom: 48px;
}

.legal-section:last-child {
  margin-bottom: 0;
}

.legal-section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-color);
}

.legal-section h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 24px;
  margin-bottom: 12px;
}

.info-block {
  color: var(--text-secondary);
  line-height: 1.8;
}

.info-block p {
  margin-bottom: 8px;
}

.info-block strong {
  color: var(--text-primary);
  font-weight: 600;
}

.info-block a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
}

.info-block a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.legal-list {
  margin: 16px 0;
  padding-left: 24px;
  color: var(--text-secondary);
}

.legal-list li {
  margin-bottom: 8px;
  line-height: 1.6;
}

/* Responsive adjustments for legal pages */
@media (max-width: 768px) {
  .legal-page {
    padding: 60px 0 0;
  }

  .legal-header {
    padding: 40px 0 30px;
    margin-bottom: 40px;
  }

  .legal-content {
    padding: 32px 24px;
  }

  .legal-section {
    margin-bottom: 36px;
  }

  .legal-section h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .legal-container {
    padding: 0 16px 60px;
  }

  .legal-header {
    padding: 30px 16px;
  }

  .legal-content {
    padding: 24px 16px;
  }

  .legal-section {
    margin-bottom: 32px;
  }

  .legal-section h2 {
    font-size: 1.375rem;
  }

  .legal-section h3 {
    font-size: 1.125rem;
  }
}