:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #4b5563;
  --accent: #2563eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 680px;
  background: var(--card);
  border-radius: 14px;
  padding: 28px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

h1 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

h2 {
  margin-top: 24px;
  margin-bottom: 10px;
  color: var(--accent);
}

p {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.6;
}

ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

li + li {
  margin-top: 6px;
}