/* ── バッジ共通 ──────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

/* 判定バッジ */
.badge-a        { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.badge-b        { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.badge-c        { background: #f1f5f9; color: #475569; border: 1px solid #e2e8f0; }

/* グレードバッジ */
.badge-gi       { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.badge-gii      { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }
.badge-giii     { background: #ede9fe; color: #5b21b6; border: 1px solid #ddd6fe; }

/* 状態バッジ */
.badge-free     { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.badge-purchased{ background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* ── 記事コンテンツ スタイル ──────────────────────────── */
.article-content h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #166534;
  margin: 1.6rem 0 0.7rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid #dcfce7;
}

.article-content h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #1a3a1a;
  margin: 1.2rem 0 0.4rem;
}

.article-content p {
  font-size: 0.875rem;
  color: #374151;
  line-height: 1.75;
  margin-bottom: 0.5rem;
}

.article-content ul,
.article-content ol {
  padding-left: 1.25rem;
  margin-bottom: 0.75rem;
}

.article-content li {
  font-size: 0.875rem;
  color: #374151;
  line-height: 1.7;
  margin-bottom: 0.2rem;
}

.article-content strong {
  color: #166534;
  font-weight: 700;
}

.article-content blockquote {
  border-left: 3px solid #86efac;
  background: #f0fdf4;
  padding: 0.6rem 0.9rem;
  margin: 0.75rem 0;
  border-radius: 0 0.5rem 0.5rem 0;
  font-size: 0.85rem;
  color: #166534;
}

.article-content hr {
  border: none;
  border-top: 1px solid #e5e7eb;
  margin: 1.25rem 0;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  margin-bottom: 1rem;
}

.article-content th {
  background: #166534;
  color: white;
  padding: 0.4rem 0.6rem;
  text-align: left;
  font-weight: 600;
}

.article-content td {
  padding: 0.35rem 0.6rem;
  border-bottom: 1px solid #e5e7eb;
  color: #374151;
}

.article-content tr:nth-child(even) td {
  background: #f9fafb;
}

/* ── スクロールバー非表示 ────────────────────────────── */
.scrollbar-hide::-webkit-scrollbar { display: none; }
.scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }

/* ── モバイル対応 ─────────────────────────────────────── */
@media (max-width: 640px) {
  .article-content h2 { font-size: 1rem; }
  .article-content p,
  .article-content li { font-size: 0.82rem; }
}