/* =========================
   Base / Reset
========================= */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Hiragino Maru Gothic ProN", "Yu Gothic", "Arial Rounded MT Bold", Arial, sans-serif;
  line-height: 1.8;
  color: #333;
  background-color: #fdfefe;
}

/* =========================
   Layout
========================= */
header,
footer {
  text-align: center;
}

main {
  max-width: 900px;
  margin: 40px auto;
  padding: 0 16px;
}

/* =========================
   Typography
========================= */
h1 {
  font-size: 2rem;
  margin-bottom: 16px;
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

p {
  font-size: 1rem;
  margin-bottom: 16px;
}

/* =========================
   Links
========================= */
a {
  color: #2b8aef;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* =========================
   Article
========================= */
article {
  background: #ffffff;
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 32px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* =========================
   Footer
========================= */
footer {
  font-size: 0.9rem;
  color: #666;
}

/* =========================
   Kids-friendly colors
========================= */
header a {
  color: #6c4cff;
}

header a:hover {
  color: #ff7a18;
}