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

body {
  font-family:
    'Inter',
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fafafa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  background: white;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: #2563eb;
}

.nav-logo i {
  margin-right: 10px;
  font-size: 1.8rem;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  text-decoration: none;
  color: #666;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: #2563eb;
}

/* Hero Section */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

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

.hero-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: #2563eb;
  color: white;
}

.btn-primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-large {
  padding: 18px 40px;
  font-size: 1.1rem;
}

/* Mockup */
.mockup {
  background: white;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  max-width: 400px;
  margin: 0 auto;
}

.mockup-header {
  background: #f8f9fa;
  padding: 15px 20px;
  border-bottom: 1px solid #e9ecef;
}

.mockup-dots {
  display: flex;
  gap: 8px;
}

.mockup-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #dee2e6;
}

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

.mockup-content {
  padding: 20px;
}

.message-preview {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 15px;
}

.message-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
  font-weight: 600;
  color: #495057;
}

.message-body p {
  margin-bottom: 10px;
  color: #495057;
}

.message-actions {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.action-btn {
  background: #2563eb;
  color: white;
  border: none;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: background 0.3s ease;
}

.action-btn:hover {
  background: #1d4ed8;
}

/* Features Section */
.features {
  padding: 80px 0;
  background: white;
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 60px;
  color: #1f2937;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
}

.feature-card {
  background: white;
  padding: 40px 30px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  text-align: center;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px;
}

.feature-icon i {
  font-size: 2rem;
  color: white;
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: #1f2937;
}

.feature-card p {
  color: #6b7280;
  line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
  padding: 80px 0;
  background: #f8fafc;
}

.how-it-works h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 60px;
  color: #1f2937;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.step-number {
  width: 50px;
  height: 50px;
  background: #2563eb;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #1f2937;
}

.step-content p {
  color: #6b7280;
  line-height: 1.6;
}

/* Use Cases Section */
.use-cases {
  padding: 80px 0;
  background: white;
}

.use-cases h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 60px;
  color: #1f2937;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.use-case {
  text-align: center;
  padding: 30px 20px;
}

.use-case-icon {
  width: 60px;
  height: 60px;
  background: #f3f4f6;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.use-case-icon i {
  font-size: 1.5rem;
  color: #2563eb;
}

.use-case h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #1f2937;
}

.use-case p {
  color: #6b7280;
  line-height: 1.6;
}

/* Download Section */
.download {
  padding: 80px 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  text-align: center;
}

/* Disclaimer Section */
.disclaimer {
  padding: 60px 0;
  background: #f8fafc;
}

.disclaimer-content {
  max-width: 800px;
  margin: 0 auto;
}

.disclaimer h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 40px;
  color: #1f2937;
}

.disclaimer-text {
  background: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  line-height: 1.7;
}

.disclaimer-text p {
  margin-bottom: 20px;
  color: #374151;
}

.disclaimer-text ul {
  margin: 20px 0;
  padding-left: 20px;
}

.disclaimer-text ul li {
  margin-bottom: 15px;
  color: #374151;
  line-height: 1.6;
}

.disclaimer-note {
  margin-top: 30px !important;
  padding: 15px;
  background: #fef3c7;
  border-left: 4px solid #f59e0b;
  border-radius: 4px;
  color: #92400e !important;
}

.disclaimer-note strong {
  color: #92400e;
}

/* Privacy Policy Page Styles */
.privacy-header {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  text-align: center;
}

.privacy-header h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.privacy-header p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 10px;
}

.privacy-intro {
  max-width: 800px;
  margin: 30px auto 0;
  font-size: 1.2rem;
  line-height: 1.6;
}

.privacy-content {
  padding: 60px 0;
  background: #f8fafc;
}

.privacy-sections {
  max-width: 900px;
  margin: 0 auto;
}

.privacy-section {
  background: white;
  margin-bottom: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

.privacy-section h2 {
  background: #f8fafc;
  padding: 25px 30px;
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: #1f2937;
  border-bottom: 1px solid #e5e7eb;
  display: flex;
  align-items: center;
  gap: 12px;
}

.privacy-section h2 i {
  color: #2563eb;
  font-size: 1.3rem;
}

.privacy-text {
  padding: 30px;
  line-height: 1.7;
}

.privacy-text h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #1f2937;
  margin: 25px 0 15px;
}

.privacy-text h3:first-child {
  margin-top: 0;
}

.privacy-text p {
  margin-bottom: 15px;
  color: #374151;
}

.privacy-text ul {
  margin: 15px 0;
  padding-left: 20px;
}

.privacy-text ul li {
  margin-bottom: 10px;
  color: #374151;
  line-height: 1.6;
}

.contact-note {
  background: #f0f9ff;
  border-left: 4px solid #2563eb;
  padding: 15px;
  margin-top: 20px;
  border-radius: 4px;
}

.contact-note p {
  margin: 0;
  color: #1e40af;
}

/* Privacy Policy Responsive */
@media (max-width: 768px) {
  .privacy-header h1 {
    font-size: 2.5rem;
  }

  .privacy-intro {
    font-size: 1.1rem;
    padding: 0 20px;
  }

  .privacy-section h2 {
    padding: 20px 25px;
    font-size: 1.3rem;
  }

  .privacy-text {
    padding: 25px;
  }
}

@media (max-width: 480px) {
  .privacy-header h1 {
    font-size: 2rem;
  }

  .privacy-section h2 {
    padding: 15px 20px;
    font-size: 1.2rem;
  }

  .privacy-text {
    padding: 20px;
  }

  .privacy-text ul {
    padding-left: 15px;
  }
}

.download-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.download-content p {
  font-size: 1.2rem;
  margin-bottom: 40px;
  opacity: 0.9;
}

.download-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}

.download-info {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  justify-content: center;
}

.download-info span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Footer */
.footer {
  background: #1f2937;
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 20px;
}

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

.footer-section ul li {
  margin-bottom: 10px;
}

.footer-section ul li a {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section ul li a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 20px;
  text-align: center;
  color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  .hero-buttons {
    justify-content: center;
  }

  .nav-links {
    display: none;
  }

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

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

  .use-cases-grid {
    grid-template-columns: 1fr;
  }

  .download-info {
    flex-direction: column;
    gap: 15px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .btn {
    padding: 12px 20px;
    font-size: 0.9rem;
  }

  .features h2,
  .how-it-works h2,
  .use-cases h2,
  .download-content h2,
  .disclaimer h2 {
    font-size: 2rem;
  }

  .disclaimer-text {
    padding: 25px;
    margin: 0 10px;
  }

  .disclaimer-text ul {
    padding-left: 15px;
  }
}