/* ════════════════════════════════════
   無料コンテンツページ固有スタイル
════════════════════════════════════ */
.free-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-lg); overflow: hidden; transition: all .3s; }
.free-card:hover { border-color: var(--teal); box-shadow: var(--shadow); transform: translateY(-4px); }
.free-card-thumb { width: 100%; height: 140px; display: flex; align-items: center; justify-content: center; }
.free-card-thumb svg { width: 40px; height: 40px; color: rgba(255,255,255,.7); }
.free-card-body { padding: 1.5rem; }
.free-card-tag { display: inline-block; font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: .22rem .7rem; border-radius: 100px; margin-bottom: .7rem; }
.free-card-title { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: .6rem; line-height: 1.35; }
.free-card-desc { font-size: .875rem; color: var(--text-muted); line-height: 1.75; margin-bottom: 1.25rem; }
.free-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

@media (max-width: 900px) { .free-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .free-grid { grid-template-columns: 1fr; } }

/* ── カードサムネイル背景バリアント ── */
.free-card-thumb--yt { background: linear-gradient(135deg, #1a0000, #300a0a); }
.free-card-thumb--manga { background: linear-gradient(135deg, #fff7ed, #fed7aa); }
.free-card-thumb--test { background: linear-gradient(135deg, #dbeafe, #bfdbfe); }
.free-card-thumb--research { background: linear-gradient(135deg, #d1fae5, #a7f3d0); }
.free-card-tag--manga { background: #fed7aa; color: #92400e; }

/* ── YouTube統計パネル ── */
.yt-section-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.yt-stats-panel { background: var(--gray-50); border-radius: var(--r-lg); padding: 2rem; text-align: center; }
.yt-stats-num { font-size: 3.5rem; font-weight: 900; color: var(--teal); line-height: 1; }
.yt-stats-label { font-size: 1rem; color: var(--text-muted); margin-top: .4rem; margin-bottom: 1.5rem; }
.yt-stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.yt-stats-item { background: var(--white); border-radius: var(--r); padding: 1rem; text-align: center; }
.yt-stats-item-num { font-size: 1.5rem; font-weight: 900; color: var(--text); }
.yt-stats-item-lbl { font-size: .75rem; color: var(--text-muted); }
.ck-list-mb { margin-bottom: 2rem; }
.btn-yt--gray { background: var(--gray-600); }

@media (max-width: 900px) { .yt-section-grid { grid-template-columns: 1fr; gap: 2rem; } }

/* ── Detail Cards（CPA / その他コンテンツ） ── */
.free-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.free-detail-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--r-lg); padding: 2rem;
  transition: box-shadow .25s, transform .25s;
}
.free-detail-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.free-detail-icon {
  width: 64px; height: 64px; border-radius: var(--r);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
}
.free-detail-icon--blue  { background: #dbeafe; color: #1d4ed8; }
.free-detail-icon--teal  { background: rgba(88,195,232,.15); color: var(--teal-dark); }
.free-detail-icon--green { background: #d1fae5; color: #059669; }
.free-detail-icon--amber { background: #fef3c7; color: #92400e; }
.free-detail-title { font-size: 1.1rem; font-weight: 800; color: var(--text); margin-bottom: .65rem; line-height: 1.35; }
.free-detail-desc  { font-size: .9rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 1.1rem; }
.free-detail-badge-row { display: flex; flex-wrap: wrap; gap: .5rem; }

/* ── Badges ── */
.free-badge {
  display: inline-block; font-size: .72rem; font-weight: 700;
  letter-spacing: .06em; padding: .28rem .75rem;
  border-radius: 100px;
  background: rgba(88,195,232,.12); color: var(--teal-dark);
  border: 1px solid rgba(88,195,232,.3);
}
.free-badge--amber { background: #fef3c7; color: #92400e; border-color: #fcd34d; }

/* ── Research Meeting Badges ── */
.free-research-inner { text-align: center; }
.free-research-badges {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 1rem; margin-top: 1rem;
}
.free-research-badge {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: 100px; padding: .6rem 1.4rem;
  font-size: .9rem; font-weight: 700; color: var(--text);
  box-shadow: var(--shadow-sm);
}

/* ── Content List Table ── */
.free-table {
  width: 100%; border-collapse: collapse;
  background: var(--white); border-radius: var(--r-lg);
  overflow: hidden; box-shadow: var(--shadow-sm);
}
.free-table thead tr { background: var(--navy); }
.free-table thead th {
  text-align: left; padding: 1rem 1.25rem;
  font-size: .8rem; font-weight: 700; letter-spacing: .06em;
  color: var(--gray-600); text-transform: uppercase;
  border-bottom: 2px solid var(--gray-200);
}
.free-table tbody tr { border-bottom: 1px solid var(--gray-100); transition: background .15s; }
.free-table tbody tr:last-child { border-bottom: none; }
.free-table tbody tr:hover { background: var(--gray-50); }
.free-table tbody td { padding: 1rem 1.25rem; font-size: .9rem; color: var(--text); vertical-align: middle; }

@media (max-width: 900px) {
  .free-detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .free-table thead { display: none; }
  .free-table tbody tr { display: block; padding: 1rem; }
  .free-table tbody td { display: block; padding: .25rem 0; font-size: .875rem; }
  .free-table tbody td:first-child { font-weight: 700; margin-bottom: .25rem; }
  .free-table tbody td:last-child { color: var(--text-muted); }
}