/* ============================================================
   style.css  ― カスタムスタイル（Tailwind CDN と併用）
   ============================================================ */

/* ---------- ベース ---------- */
html {
  font-size: 18px;               /* 高齢者向け：大きめベース */
  -webkit-tap-highlight-color: transparent;
}
body {
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP",
               "Yu Gothic", "Meiryo", sans-serif;
}

/* ---------- タブバー ---------- */
.tab-bar {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;          /* Firefox */
  padding: 0.5rem 1rem;
}
.tab-bar::-webkit-scrollbar {
  display: none;                  /* Chrome / Safari */
}
.tab-btn {
  flex: 0 0 auto;
  padding: 0.6rem 1.2rem;
  border-radius: 9999px;
  font-size: 1rem;
  font-weight: 600;
  white-space: nowrap;
  border: 2px solid transparent;
  background: #f1f5f9;
  color: #475569;
  cursor: pointer;
  transition: all 0.15s;
}
.tab-btn:hover {
  background: #e2e8f0;
}
.tab-btn.active {
  background: #2563eb;
  color: #fff;
  border-color: #2563eb;
}

/* ---------- カード ---------- */
.doc-card {
  background: #fff;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  transition: transform 0.15s, box-shadow 0.15s;
  display: flex;
  flex-direction: column;
}
.doc-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.10);
}
.doc-card a {
  text-decoration: none;
  color: inherit;
}

/* サムネイル領域 */
.doc-thumb {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: top;
  display: block;
  background: #f8fafc;
}

/* PDF プレースホルダ */
.doc-pdf-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  color: #2563eb;
}
.doc-pdf-icon {
  width: 2.5rem;
  height: 2.5rem;
  max-width: 2.5rem;
  max-height: 2.5rem;
  flex-shrink: 0;
  margin-bottom: 0.4rem;
}
.doc-pdf-placeholder span {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.doc-pdf-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.4rem;
  padding: 0.4rem 1rem;
  background: #2563eb;
  color: #fff;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: background 0.15s;
}
.doc-card:hover .doc-pdf-btn {
  background: #1d4ed8;
}

/* カード情報部 */
.doc-info {
  padding: 0.85rem 1rem;
}
.doc-title {
  font-size: 1rem;
  font-weight: 700;
  color: #1e293b;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.doc-meta {
  margin-top: 0.35rem;
  font-size: 0.8rem;
  color: #94a3b8;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ---------- セクション見出し ---------- */
.section-heading {
  font-size: 1.2rem;
  font-weight: 800;
  color: #1e293b;
  padding: 0.5rem 0;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.section-heading::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 1.3em;
  border-radius: 2px;
  background: #2563eb;
}

/* ---------- 新着リスト ---------- */
.latest-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  transition: background 0.15s;
}
.latest-item:hover {
  background: #f8fafc;
}
.latest-badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}
.latest-badge-pdf {
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
}
.latest-thumb {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  object-fit: cover;
}
.latest-cat {
  font-size: 0.8rem;
  padding: 0.15rem 0.6rem;
  border-radius: 9999px;
  background: #f1f5f9;
  color: #64748b;
  white-space: nowrap;
}
.latest-date {
  font-size: 0.8rem;
  color: #94a3b8;
  white-space: nowrap;
}

/* ---------- 管理画面 ---------- */
.admin-section {
  background: #fff;
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.admin-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}
.admin-table th {
  text-align: left;
  padding: 0.6rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #64748b;
  border-bottom: 2px solid #e2e8f0;
}
.admin-table td {
  padding: 0.75rem;
  border-bottom: 1px solid #f1f5f9;
  vertical-align: middle;
}
.admin-table tr:last-child td {
  border-bottom: none;
}

/* ---------- 空状態 ---------- */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: #94a3b8;
}
.empty-state svg {
  width: 3rem;
  height: 3rem;
  margin: 0 auto 1rem;
  opacity: 0.4;
}

/* ---------- フラッシュメッセージ ---------- */
.flash {
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  margin-bottom: 1rem;
  font-weight: 600;
  font-size: 0.95rem;
}
.flash-success {
  background: #f0fdf4;
  color: #16a34a;
  border: 1px solid #bbf7d0;
}
.flash-error {
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
}

/* ---------- ビューワーモーダル ---------- */
.-webkit-overflow-scrolling-touch {
  -webkit-overflow-scrolling: touch;
}