* {
  box-sizing: border-box;
}

:root {
  --card-border-radius: 10px;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #1f2937;
  background: #f3f4f6;
}

.hero {
  padding: 3rem 1.5rem 2rem;
  text-align: center;
  background: #111827;
  color: #f9fafb;
}

.hero h1 {
  margin: 0;
}

.content {
  max-width: 800px;
  margin: 0 auto;
  padding: 1.5rem;
}

section {
  background: #ffffff;
  margin-bottom: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--card-border-radius);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}

h2 {
  margin-top: 0;
}