/* Simple, kid-friendly styling */
:root { --bg: #f9fafb; --fg: #111827; --accent: #2563eb; --card: #ffffff; --muted:#6b7280; }
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--fg);
  background: linear-gradient(180deg, #eff6ff 0%, #f9fafb 70%);
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
}
.container {
  width: min(920px, 92vw);
  background: var(--card);
  padding: 28px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,.08);
}
h1, h2 { margin-top: 0; }
h1 { font-size: 2rem; }
h2 { font-size: 1.3rem; color: var(--accent); }
p { line-height: 1.6; }
.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  font-weight: 700;
  border: none;
  cursor: pointer;
}
.btn.secondary {
  background: #0ea5e9;
}
.card {
  background: #f8fafc;
  border: 1px solid #e5e7eb;
  padding: 16px;
  border-radius: 16px;
  margin: 14px 0;
}
.grid { display: grid; gap: 12px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
label { display:block; font-weight:600; margin-bottom: 6px; }
input[type="number"], input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font-size: 16px;
}
.small { color: var(--muted); font-size: .95rem; }
hr { border: 0; height: 1px; background: #e5e7eb; margin: 20px 0; }
.footer { font-size: 0.9rem; color: var(--muted); text-align:center; margin-top: 16px; }
.notice { background: #ecfeff; border: 1px solid #a5f3fc; padding: 12px; border-radius: 12px; }
.kidlist li { margin: 8px 0; }
.kidlist { padding-left: 20px; }