/* =============================================
   NICE Clinical Reasoning - Main Stylesheet
   ============================================= */

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f9f9f9;
}

/* --- Layout --- */
header {
  background-color: #005eb8; /* NHS Blue */
  color: #fff;
  padding: 2rem 1.5rem;
  text-align: center;
}

header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

header p {
  font-size: 1.1rem;
  opacity: 0.9;
}

main {
  max-width: 960px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

section {
  background: #fff;
  border-radius: 8px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

section h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #005eb8;
}

footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.875rem;
  color: #666;
  border-top: 1px solid #e0e0e0;
}

/* --- Responsive --- */
@media (max-width: 600px) {
  header h1 {
    font-size: 1.5rem;
  }

  main {
    padding: 0 1rem;
  }
}