* {
  box-sizing: border-box;
}

body {
  background: #f0f4f8;
  font-family: 'Segoe UI', Roboto, system-ui, sans-serif;
  margin: 0;
  padding: 2rem 1rem;
  color: #1e2f3e;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  background: white;
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.08);
  padding: 1.5rem 1rem 2rem;
}

h1 {
  font-size: 1.7rem;
  margin: 0 0 0.2rem;
}

.sub {
  border-left: 3px solid #2c6e9e;
  padding-left: 1rem;
  margin: 0.5rem 0 1rem;
  color: #2c6e9e;
  font-size: 0.9rem;
}