/* ===== UNDER FLAT GAMES 共通スタイル ===== */
:root {
  --cream: #FFF3DB;
  --cream2: #FFE9C2;
  --tray: #7ED6A8;
  --tray-dark: #56BB8A;
  --tray-rim: #3FA876;
  --ink: #3A2E2A;
  --sub: #8a6f5e;
  --yellow: #FFCA4B;
  --pink: #FF6F8B;
  --bg: #FAF6EE;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html { -webkit-text-size-adjust: 100%; }
body {
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

/* ヘッダー */
.site-header {
  background: #fff;
  border-bottom: 1px solid rgba(0,0,0,.06);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-logo {
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 3px;
  color: var(--ink);
  text-decoration: none;
}
.site-logo:hover { color: var(--tray-rim); }
.site-nav {
  display: flex;
  gap: 20px;
  font-size: 13px;
}
.site-nav a {
  color: var(--sub);
  text-decoration: none;
  font-weight: 600;
}
.site-nav a:hover { color: var(--ink); }

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

/* ヒーロー (トップページ) */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}
.hero h1 {
  font-size: 32px;
  letter-spacing: 6px;
  font-weight: 800;
  margin-bottom: 12px;
}
.hero .tagline {
  color: var(--sub);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 36px;
}

/* ゲーム一覧 */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin: 40px 0;
}
.game-card {
  background: #fff;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 4px 12px rgba(0,0,0,.06);
  transition: transform .2s, box-shadow .2s;
  text-decoration: none;
  color: inherit;
  display: block;
}
.game-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0,0,0,.10);
}
.game-card .icon {
  font-family: "Mochiy Pop One", system-ui;
  font-size: 32px;
  color: #fff;
  background: linear-gradient(180deg, var(--tray), var(--tray-dark));
  width: 80px;
  height: 80px;
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  text-shadow: 0 3px 0 var(--tray-rim);
}
.game-card .icon b { color: var(--yellow); text-shadow: 0 3px 0 #D99B22; }
.game-card h2 {
  font-size: 18px;
  margin-bottom: 6px;
}
.game-card .desc {
  font-size: 13px;
  color: var(--sub);
  line-height: 1.5;
  margin-bottom: 12px;
}
.game-card .links {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--tray-rim);
  font-weight: 700;
}

/* セクション */
.section {
  padding: 40px 0;
}
.section h2 {
  font-size: 22px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--cream2);
  padding-bottom: 8px;
}

/* 法務ページ用 */
.legal {
  padding: 40px 0 80px;
}
.legal h1 {
  font-size: 28px;
  margin-bottom: 8px;
}
.legal .meta {
  color: var(--sub);
  font-size: 12px;
  margin-bottom: 32px;
}
.legal h2 {
  font-size: 18px;
  margin: 32px 0 12px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--cream2);
}
.legal h3 {
  font-size: 15px;
  margin: 20px 0 8px;
  color: var(--tray-rim);
}
.legal p { margin-bottom: 12px; }
.legal ul, .legal ol { padding-left: 24px; margin-bottom: 12px; }
.legal li { margin-bottom: 6px; }
.legal a {
  color: var(--tray-rim);
  text-decoration: underline;
}
.legal table {
  border-collapse: collapse;
  width: 100%;
  margin: 12px 0;
  font-size: 13px;
}
.legal th, .legal td {
  border: 1px solid #e4d3b8;
  padding: 8px 12px;
  text-align: left;
}
.legal th {
  background: var(--cream);
  font-weight: 700;
}

/* フッター */
.site-footer {
  background: #2D2520;
  color: #C9BFB1;
  padding: 32px 0;
  font-size: 12px;
  text-align: center;
  margin-top: 60px;
}
.site-footer a {
  color: #E0D5C5;
  text-decoration: none;
  margin: 0 8px;
}
.site-footer .copy {
  margin-top: 12px;
  color: #8A7E6E;
}

/* ボタン */
.btn {
  display: inline-block;
  background: linear-gradient(180deg, #FFD15C, var(--yellow));
  color: #fff;
  font-weight: 700;
  padding: 10px 24px;
  border-radius: 24px;
  text-decoration: none;
  box-shadow: 0 4px 0 #E0A52E;
  transition: transform .1s;
}
.btn:active { transform: translateY(2px); box-shadow: 0 2px 0 #E0A52E; }

/* レスポンシブ */
@media (max-width: 600px) {
  .hero { padding: 50px 0 40px; }
  .hero h1 { font-size: 24px; letter-spacing: 4px; }
  .legal h1 { font-size: 22px; }
  .legal h2 { font-size: 16px; }
}