/* ==================================== */
/* base.css: 基本設定・変数・リセット */
/* ==================================== */

:root {
  --bg: #fffaf9;
  --card: #ffffff;
  --accent: #f7c6d1;
  --leaf: #b7e4c7;
  --muted: #6b6b6b;
  --round: 12px;
  --maxw: 920px;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --link-blue: #1e88e5;
  --strong-text: #4a4a4a;
  --error-red: #c00000;
  
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  color: #2b2b2b;
}

html, body {
  height: 100%;
  margin: 0;
  background: linear-gradient(180deg, var(--bg), #fff);
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--maxw);
  margin: 28px auto;
  padding: 20px;
}

@media (max-width: 600px) {
  .wrap { margin: 15px auto; padding: 15px; }
}

p, ul {
  line-height: 1.85;
  margin-bottom: 1.2em;
}

strong {
  color: var(--strong-text);
  font-weight: bold;
}

h1 { margin: 12px 0 16px; font-size: 28px; line-height: 1.3; }

h2 {
  margin: 32px 0 16px;
  font-size: 24px;
  border-bottom: 3px solid var(--accent);
  padding-bottom: 8px;
}

h3 {
  margin: 24px 0 12px;
  font-size: 20px;
  border-left: 5px solid var(--accent);
  padding-left: 12px;
}

@media (max-width: 600px) {
  h1 { font-size: 24px; }
  h2 { font-size: 20px; }
  h3 { font-size: 18px; }
}

a {
  color: var(--link-blue);
  text-decoration: underline;
}

a:hover { text-decoration: none; color: #0066cc; }
a:visited { color: #800080; }

.btn, header a, .logo a, .site-header a, footer a {
  color: inherit !important;
  text-decoration: none !important;
}