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

body {
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: #212121;
  background-color: #fafafa;
  scroll-behavior: smooth;
}

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

/* Header Styles */
.header {
  background: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 32px;
  color: #2196F3;
}

.logo-text {
  font-size: 24px;
  font-weight: 500;
  color: #212121;
  margin: 0;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  text-decoration: none;
  color: #616161;
  font-weight: 400;
  transition: color 0.2s ease;
  position: relative;
}

.nav-link:hover {
  color: #2196F3;
}

.nav-link:hover::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: #2196F3;
}

/* Hero Section */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #2196F3 0%, #21CBF3 100%);
  color: white;
  text-align: center;
}

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

.hero-title {
  font-size: 48px;
  font-weight: 300;
  margin-bottom: 24px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 20px;
  font-weight: 300;
  margin-bottom: 48px;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: #fff;
  color: #2196F3;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.btn-primary:hover {
  box-shadow: 0 4px 8px rgba(0,0,0,0.3);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
}

.btn-secondary:hover {
  background: #fff;
  color: #2196F3;
}

.btn-icon {
  font-size: 20px;
}

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

.section-title {
  font-size: 36px;
  font-weight: 300;
  text-align: center;
  margin-bottom: 64px;
  color: #212121;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.feature-card {
  text-align: center;
  padding: 32px 24px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  background: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.feature-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background: #2196F3;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.feature-icon .material-icons {
  font-size: 32px;
}

.feature-title {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 16px;
  color: #212121;
}

.feature-description {
  color: #616161;
  line-height: 1.6;
}

/* How it Works Section */
.how-it-works {
  padding: 80px 0;
  background: #f5f5f5;
}

.steps {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  max-width: 800px;
  margin: 0 auto;
}

.step {
  text-align: center;
  flex: 1;
  min-width: 200px;
}

.step-number {
  width: 48px;
  height: 48px;
  background: #2196F3;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 500;
  margin: 0 auto 24px;
}

.step-title {
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 12px;
  color: #212121;
}

.step-description {
  color: #616161;
  line-height: 1.6;
}

/* Footer */
.footer {
  background: #212121;
  color: #fff;
  padding: 48px 0 24px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 16px;
}

.footer-logo .material-icons {
  font-size: 28px;
  color: #2196F3;
}

.footer-description {
  color: #bdbdbd;
  line-height: 1.6;
  max-width: 400px;
}

.footer-title {
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #bdbdbd;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: #2196F3;
}

.footer-link .material-icons {
  font-size: 20px;
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid #424242;
  color: #bdbdbd;
}

.footer-bottom a {
  color: #2196F3;
  text-decoration: none;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  
  .header-content {
    height: 56px;
  }
  
  .nav {
    display: none;
  }
  
  .hero {
    padding: 80px 0 60px;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-subtitle {
    font-size: 18px;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
  
  .features {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 28px;
    margin-bottom: 48px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .how-it-works {
    padding: 60px 0;
  }
  
  .steps {
    flex-direction: column;
    gap: 32px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer {
    padding: 32px 0 16px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .section-title {
    font-size: 24px;
  }
  
  .feature-card {
    padding: 24px 16px;
  }
  
  .feature-title {
    font-size: 20px;
  }
}