:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;
  color-scheme: light dark;
  background-color: #f0f2f5;
  color: #213547;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  color: white;
  margin-bottom: 3rem;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto;
}

.ai-section {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  margin-bottom: 3rem;
}

.ai-section h2 {
  color: #4f46e5;
  margin-bottom: 1.5rem;
}

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

.questionnaire-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.2s;
}

.questionnaire-card:hover {
  transform: translateY(-5px);
}

.questionnaire-card h3 {
  color: #4f46e5;
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background-color: #4f46e5;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s;
}

.btn:hover {
  background-color: #4338ca;
}

@media (max-width: 768px) {
  .hero {
    padding: 2rem 1rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .container {
    padding: 1rem;
  }
}

.comparison-section {
  margin-top: 3rem;
  padding: 2rem;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.comparison-section h2 {
  text-align: center;
  margin-bottom: 2rem;
  color: #4f46e5;
}

.comparison-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  max-width: 900px;
  margin: 0 auto;
}

.column-title {
  font-weight: 700;
  font-size: 1.2rem;
  background-color: #eef2ff;
  padding: 1rem;
  text-align: center;
  border-radius: 8px;
  color: #3730a3;
}

.cell {
  background-color: #f9fafb;
  padding: 1rem;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  font-size: 1rem;
}