* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
}

body {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: #222;
  background: #f4f6f8;
}

.header {
  background: #1e3a5f;
  color: #fff;
  text-align: center;
  padding: 48px 20px;
}

.header h1 {
  font-size: 2.2rem;
  margin-bottom: 8px;
}

.subtitle {
  opacity: 0.9;
  font-size: 1.1rem;
}

main {
  flex: 1;
  max-width: 720px;
  width: 100%;
  margin: 32px auto;
  padding: 0 16px;
}

.card {
  background: #fff;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.card h2 {
  color: #1e3a5f;
  margin-bottom: 12px;
  font-size: 1.3rem;
}

.card ul {
  padding-left: 20px;
}

.card li {
  margin-bottom: 8px;
}

a {
  color: #2563eb;
}

.footer {
  margin-top: auto;
  text-align: center;
  padding: 24px;
  color: #666;
  font-size: 0.9rem;
}