/* アプリの San Francisco テーマに合わせた配色 */
:root {
  --bg: #f7e1e1;
  --card: #fcf3f3;
  --text: #3d4f57;
  --heading: #1e3a8a;
  --marker: #ff5fa2;
  --sub: #6f7a80;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
}

a { color: var(--heading); }

h1, h2, h3 { color: var(--heading); font-weight: 900; line-height: 1.4; }

/* 蛍光ペン風のマーカー */
.marker {
  background: linear-gradient(transparent 55%, var(--marker) 55%, var(--marker) 92%, transparent 92%);
  padding: 0 4px;
}

.wrap { max-width: 960px; margin: 0 auto; padding: 0 16px; }

/* ヘッダー */
.site-header { padding: 16px 0; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo { font-weight: 900; color: var(--heading); text-decoration: none; font-size: 1.1rem; }
.nav { display: flex; gap: 16px; font-size: 0.9rem; }
.nav a { text-decoration: none; font-weight: 700; }

/* トップ */
.hero { padding: 40px 0 64px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(2rem, 6vw, 3.2rem); margin: 0 0 16px; }
.hero .lead { font-size: 1.1rem; margin: 0 0 24px; }
.badge {
  display: inline-block;
  background: var(--heading);
  color: #fff;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: 999px;
}

.phone {
  width: 100%;
  max-width: 280px;
  border-radius: 32px;
  box-shadow: 0 16px 40px rgba(30, 58, 138, 0.18);
  display: block;
  margin: 0 auto;
}

/* 機能紹介 */
.section { padding: 56px 0; }
.section-title { text-align: center; font-size: 1.8rem; margin: 0 0 40px; }

.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; margin-bottom: 72px; }
.feature:nth-child(even) .feature-image { order: 2; }
.feature h3 { font-size: 1.5rem; margin: 0 0 4px; }
.feature .tab-name { color: var(--sub); font-weight: 700; font-size: 0.9rem; margin: 0 0 12px; }
.feature ul { padding-left: 1.2em; margin: 12px 0 0; }

/* そのほかの機能 */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--card); border-radius: 16px; padding: 20px; }
.card h3 { font-size: 1.05rem; margin: 0 0 8px; }
.card p { margin: 0; font-size: 0.95rem; }

/* 文章ページ（サポート・プライバシー） */
.doc { max-width: 720px; padding-top: 16px; padding-bottom: 64px; }
.doc h1 { font-size: 2rem; margin: 16px 0 24px; }
.doc h2 { font-size: 1.15rem; margin: 32px 0 8px; }
.faq { background: var(--card); border-radius: 16px; padding: 4px 20px; margin-bottom: 12px; }
.faq h3 { font-size: 1rem; margin: 16px 0 4px; }
.faq p { margin: 0 0 16px; }

/* フッター */
.site-footer { padding: 32px 0 48px; font-size: 0.85rem; color: var(--sub); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; }
.site-footer nav { display: flex; gap: 16px; }

@media (max-width: 720px) {
  .hero .wrap, .feature { grid-template-columns: 1fr; gap: 24px; }
  .feature:nth-child(even) .feature-image { order: 0; }
  .feature { margin-bottom: 56px; }
  .grid { grid-template-columns: 1fr; }
  .phone { max-width: 240px; }
}