* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, -apple-system, sans-serif;
}

body {
  background: #f5f7fa;
  color: #333;
}

.header {
  background: #165DFF;
  color: white;
  padding: 20px;
  text-align: center;
}

.container {
  max-width: 800px;
  margin: 30px auto;
  padding: 0 20px;
}

.card {
  background: white;
  padding: 24px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

h2 {
  margin-bottom: 16px;
  color: #165DFF;
}

p {
  font-size: 16px;
  margin: 8px 0;
}