* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Landing Container */
.landing-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  min-height: 100vh;
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 60px 20px 80px;
}

.hero-content {
  margin-bottom: 60px;
}

.logo-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 30px;
}

.logo {
  width: 80px;
  height: 80px;
  object-fit: contain;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.brand-name {
  font-size: 3.5rem;
  font-weight: 800;
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  letter-spacing: -1px;
}

.tagline {
  font-size: 2rem;
  color: #ffffff;
  font-weight: 600;
  margin-bottom: 20px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.hero-description {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.95);
  max-width: 700px;
  margin: 0 auto 40px;
  line-height: 1.8;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* CTA Button */
.cta-button {
  background: white;
  color: #667eea;
  border: none;
  padding: 18px 40px;
  font-size: 1.2rem;
  font-weight: 700;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  background: #f8f9fa;
}

.cta-button:active {
  transform: translateY(-1px);
}

.button-icon {
  font-size: 1.5rem;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 60px;
  padding: 0 20px;
}

.feature-card {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.feature-card:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.2);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.feature-card h3 {
  color: #ffffff;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.feature-card p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
  line-height: 1.6;
}

/* Getting Started Section */
.getting-started {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 30px;
  padding: 60px 40px;
  margin: 60px 0;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  color: #2d3748;
  margin-bottom: 20px;
  font-weight: 700;
}

.section-description {
  text-align: center;
  font-size: 1.1rem;
  color: #4a5568;
  max-width: 800px;
  margin: 0 auto 50px;
  line-height: 1.8;
}

/* Extension Cards */
.extension-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.extension-card {
  background: white;
  border: 2px solid #e2e8f0;
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  transition: all 0.3s ease;
}

.extension-card:hover {
  transform: translateY(-5px);
  border-color: #667eea;
  box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.browser-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 25px;
  padding: 15px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chrome-icon {
  background: linear-gradient(135deg, #4285f4 0%, #34a853 100%);
  color: white;
}

.firefox-icon {
  background: linear-gradient(135deg, #ff9500 0%, #ff5722 100%);
  color: white;
}

.safari-icon {
  background: linear-gradient(135deg, #0088cc 0%, #005f99 100%);
  color: white;
}

.browser-icon svg {
  width: 100%;
  height: 100%;
}

.extension-card h4 {
  font-size: 1.3rem;
  color: #2d3748;
  margin-bottom: 10px;
  font-weight: 700;
}

.extension-card p {
  color: #718096;
  margin-bottom: 20px;
  font-size: 1rem;
}

.extension-link {
  display: inline-block;
  color: #667eea;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 12px 30px;
  border: 2px solid #667eea;
  border-radius: 25px;
  transition: all 0.3s ease;
}

.extension-link:hover {
  background: #667eea;
  color: white;
  transform: translateX(5px);
}

/* Help Section */
.help-section {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  border-radius: 20px;
  padding: 40px;
  margin-top: 40px;
}

.help-section h4 {
  font-size: 1.5rem;
  color: #2d3748;
  margin-bottom: 25px;
  font-weight: 700;
}

.setup-steps {
  list-style: none;
  counter-reset: step-counter;
  max-width: 600px;
  margin: 0 auto;
}

.setup-steps li {
  counter-increment: step-counter;
  position: relative;
  padding: 20px 20px 20px 70px;
  margin-bottom: 20px;
  background: white;
  border-radius: 15px;
  font-size: 1.05rem;
  color: #4a5568;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.setup-steps li:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.setup-steps li::before {
  content: counter(step-counter);
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 35px;
  height: 35px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

/* Footer */
.footer {
  text-align: center;
  padding: 40px 20px 20px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
}

.footer a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid rgba(255, 255, 255, 0.5);
  transition: all 0.3s ease;
}

.footer a:hover {
  border-bottom-color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
  .brand-name {
    font-size: 2.5rem;
  }

  .tagline {
    font-size: 1.5rem;
  }

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

  .logo {
    width: 60px;
    height: 60px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .extension-cards {
    grid-template-columns: 1fr;
  }

  .getting-started {
    padding: 40px 25px;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .help-section {
    padding: 30px 20px;
  }

  .setup-steps li {
    padding: 15px 15px 15px 60px;
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .logo-container {
    flex-direction: column;
    gap: 10px;
  }

  .brand-name {
    font-size: 2rem;
  }

  .cta-button {
    font-size: 1rem;
    padding: 15px 30px;
  }

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