:root {
  --bg: #f5f7fb;
  --card-bg: #ffffff;
  --text: #192334;
  --muted: #536174;
  --primary: #2453b5;
  --border: #d9e1eb;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  line-height: 1.6;
  padding: 32px 16px 64px;
}

.container {
  max-width: 640px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 32px;
}

.subtitle {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

h1 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.desc {
  font-size: 0.95rem;
  color: var(--muted);
}

/* ゲーム一覧リスト */
.game-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.game-card {
  display: block;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px 20px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 4px 16px rgb(25 35 52 / 4%);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.game-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgb(25 35 52 / 8%);
  border-color: var(--primary);
}

.badge-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 6px;
  background: #eef3ff;
  color: var(--primary);
}

.game-title {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.arrow {
  color: var(--muted);
  font-size: 1.1rem;
  transition: transform 0.15s ease;
}

.game-card:hover .arrow {
  transform: translateX(4px);
  color: var(--primary);
}

.game-text {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.5;
}

/* 準備中カード用スタイル */
.game-card.disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: #fdfdfd;
  border-style: dashed;
}

.game-card.disabled:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--border);
}

.game-card.disabled .badge {
  background: #eceff3;
  color: var(--muted);
}

/* フッター */
footer {
  text-align: center;
  margin-top: 48px;
  font-size: 0.8rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.footer-links .sep {
  color: var(--border);
}

.copyright {
  font-size: 0.75rem;
}