:root {
  color-scheme: light;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: linear-gradient(145deg, #eef2ff, #ffffff);
  color: #111827;
}

.card {
  width: min(680px, 100%);
  padding: 2rem;
  border-radius: 1rem;
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
}

.tag {
  display: inline-block;
  margin: 0 0 0.5rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: #e0e7ff;
  color: #3730a3;
  font-size: 0.8rem;
  font-weight: 600;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
}

h2 {
  margin: 1.2rem 0 0.4rem;
  font-size: 1.1rem;
}

.intro {
  margin: 0 0 1rem;
  line-height: 1.6;
}

ul {
  margin: 0;
  padding-left: 1.25rem;
}

a {
  color: #1d4ed8;
}