:root {
  color-scheme: light;
  --bg-1: #f7f8ff;
  --bg-2: #e9f7ef;
  --ink: #1f2430;
  --muted: #4f5564;
  --accent: #157347;
  --card: rgba(255, 255, 255, 0.82);
  --border: rgba(21, 115, 71, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1100px 700px at 10% -10%, #ffffff 20%, transparent 70%),
    radial-gradient(800px 500px at 100% 0%, #ddf6e8 10%, transparent 70%),
    linear-gradient(130deg, var(--bg-1), var(--bg-2));
}

.shell {
  max-width: 900px;
  margin: 0 auto;
  padding: 5rem 1.25rem 3rem;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

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

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
  backdrop-filter: blur(5px);
}

.card h2 {
  margin: 0 0 0.5rem;
}

strong {
  color: var(--accent);
}