* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: #0e1d2f;
  background: linear-gradient(135deg, #e8f3ff 0%, #f0fff6 100%);
}

.container {
  max-width: 900px;
  margin: 8vh auto;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid #d6e5f7;
  border-radius: 18px;
  box-shadow: 0 16px 48px rgba(14, 29, 47, 0.08);
}

h1 {
  margin-top: 0;
  letter-spacing: 0.01em;
}

code {
  background: #edf5ff;
  border-radius: 6px;
  padding: 0.1rem 0.35rem;
}