* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f4f4;
  color: #1f1f1f;
  line-height: 1.6;
}

.container {
  max-width: 850px;
  margin: 0 auto;
  padding: 48px 24px;
}

.hero {
  padding: 48px 0;
  border-bottom: 1px solid #d0d0d0;
}

h1 {
  font-size: 3rem;
  margin: 0 0 8px;
}

.subtitle {
  font-size: 1.25rem;
  color: #555;
  margin-bottom: 24px;
}

section {
  margin: 40px 0;
}

h2 {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

h3 {
  margin-top: 0;
}

.card {
  background: white;
  padding: 20px;
  margin: 16px 0;
  border-radius: 10px;
  border: 1px solid #ddd;
}

a {
  color: #0645ad;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}