:root {
  color: #0f172a;
  background: #f8fafc;
  font-family: "Noto Sans JP", "Segoe UI", system-ui, -apple-system, sans-serif;
}

body {
  margin: 0;
}

.app {
  max-width: 800px;
  margin: 40px auto;
  padding: 0 20px 40px;
}

header h1 {
  margin: 0 0 8px;
}

header p {
  margin: 0 0 20px;
  color: #475569;
}

.list {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

.card {
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid #e2e8f0;
  background: #fff;
  box-shadow: 0 3px 8px rgba(15, 23, 42, 0.06);
}

.card h2 {
  margin: 0 0 6px;
}

.card p {
  margin: 0;
  color: #334155;
}