:root {
  --bg-dark: #0d0d1a;
  --bg-medium: #131325;
  --bg-card: #1a1a30;
  --accent: #c9a84c;
  --accent-hover: #e0c070;
  --text-primary: #e8e4d9;
  --text-secondary: #8888aa;
  --border: #2a2a45;
  --pane-left-width: 270px;
  --pane-right-width: 290px;
  --collapsed-width: 36px;
}

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

html,
body {
  height: 100%;
  overflow: hidden;
  background: var(--bg-dark);
  color: var(--text-primary);
  font-family: 'Georgia', 'Noto Serif JP', serif;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
}

/* === 3ペインレイアウト === */
.database-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.pane {
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pane-content {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.pane-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-medium);
  flex-shrink: 0;
  min-height: 44px;
}

.pane-title {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: bold;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
}

/* ホームに戻るリンクとして使うペインタイトル */
.pane-title-link {
  color: var(--text-secondary);
  text-decoration: none;
  cursor: pointer;
  transition: color 0.15s;
}

.pane-title-link:hover {
  color: var(--text-primary);
}

/* 左ペイン */
.pane-left {
  flex: 0 0 var(--pane-left-width);
  min-width: var(--pane-left-width);
  background: var(--bg-medium);
  transition: flex-basis 0.2s ease, min-width 0.2s ease;
}

/* 中央ペイン */
.pane-center {
  flex: 1;
  background: var(--bg-dark);
  min-width: 0;
}

/* 右ペイン */
.pane-right {
  flex: 0 0 var(--pane-right-width);
  min-width: var(--pane-right-width);
  background: var(--bg-medium);
  transition: flex-basis 0.2s ease, min-width 0.2s ease;
}

/* === リサイズハンドル === */
.resize-handle {
  flex: 0 0 1px;
  width: 1px;
  background: var(--border);
  cursor: col-resize;
  position: relative;
  transition: background 0.15s;
}

/* ヒットエリアを左右に広げる */
.resize-handle::after {
  content: '';
  position: absolute;
  top: 0;
  left: -4px;
  right: -4px;
  bottom: 0;
  cursor: col-resize;
}

.resize-handle:hover,
.resize-handle.dragging {
  background: var(--accent);
}

/* 折りたたみ中のペインに隣接するハンドルを非表示にする */
#pane-left.collapsed+.resize-handle {
  display: none;
}

.resize-handle:has(+ #pane-right.collapsed) {
  display: none;
}

/* ドラッグ中はページ全体のテキスト選択を防ぐ */
body.resizing {
  user-select: none;
  cursor: col-resize;
}

/* 折りたたみ状態 */
.pane.collapsed {
  flex: 0 0 var(--collapsed-width) !important;
  min-width: var(--collapsed-width) !important;
}

.pane.collapsed .pane-content {
  display: none;
}

.pane.collapsed .pane-title {
  display: none;
}

.pane.collapsed .pane-toolbar {
  justify-content: center;
  padding: 0.5rem;
}

/* ペイン開閉ボタン */
.toggle-pane-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 3px 7px;
  border-radius: 4px;
  font-size: 0.7rem;
  line-height: 1.4;
  transition: color 0.2s, border-color 0.2s;
  flex-shrink: 0;
}

.toggle-pane-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* === カードリスト (左ペイン) === */
.card-list {
  list-style: none;
}

.category-section {
  margin-bottom: 0.25rem;
}

.category-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.6rem;
  cursor: pointer;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: bold;
  letter-spacing: 0.03em;
  border-radius: 4px;
  user-select: none;
  list-style: none;
}

.category-summary::-webkit-details-marker {
  display: none;
}

.category-summary::after {
  content: "▼";
  font-size: 0.65rem;
  opacity: 0.7;
}

details[open] .category-summary::after {
  content: "▲";
}

.category-summary:hover {
  background: var(--bg-card);
}

.category-items {
  list-style: none;
  padding: 0;
  margin: 0;
}

.card-list-item a {
  display: block;
  padding: 0.35rem 0.6rem 0.35rem 1.1rem;
  color: var(--text-primary);
  font-size: 0.82rem;
  border-radius: 4px;
  transition: background 0.12s, color 0.12s;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-list-item a:hover {
  background: var(--bg-card);
  color: var(--accent);
}

.card-list-item.active a {
  background: var(--bg-card);
  color: var(--accent);
  border-left: 2px solid var(--accent);
  padding-left: calc(1.1rem - 2px);
}

/* === カード詳細 (中央ペイン) === */
.card-detail-content {
  max-width: 680px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
}

.card-detail-content h1 {
  color: var(--accent);
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.6rem;
  line-height: 1.4;
}

.card-detail-content h2 {
  color: var(--accent);
  font-size: 1.1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.6rem;
  opacity: 0.85;
}

.card-detail-content h3 {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

.card-detail-content p {
  line-height: 1.85;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.card-detail-content ul,
.card-detail-content ol {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.card-detail-content li {
  line-height: 1.75;
  font-size: 0.95rem;
}

.card-detail-content strong {
  color: var(--accent);
}

/* 属性テーブルなど (中央ペイン) */
.card-detail-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0 1.5rem;
  font-size: 0.9rem;
}

.card-detail-content thead tr {
  border-bottom: 2px solid var(--accent);
}

.card-detail-content thead th {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: bold;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.4rem 0.75rem;
  text-align: left;
  opacity: 0.7;
}

.card-detail-content tbody td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.65;
}

.card-detail-content tbody td:first-child {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: bold;
  white-space: nowrap;
  width: 1%;
  padding-right: 1.25rem;
  opacity: 0.9;
}

.card-detail-content tbody tr:last-child td {
  border-bottom: none;
}

.card-detail-content tbody tr:hover td {
  background: rgba(201, 168, 76, 0.04);
}

/* 前後ナビゲーション */
.card-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  gap: 0.5rem;
}

.card-nav-spacer {
  flex: 1;
}

.card-nav a {
  color: var(--text-secondary);
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.82rem;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  white-space: nowrap;
  cursor: pointer;
}

.card-nav a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--bg-card);
}

/* 未選択時のプレースホルダー */
.card-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-secondary);
  font-size: 0.9rem;
  opacity: 0.5;
}

/* === カード画像 (右ペイン) === */

/* 右ペイン全体のフォントサイズを1段階小さく */
.pane-right .pane-content {
  font-size: 0.85rem;
}

.card-image-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
  gap: 0.75rem;
}

.card-image {
  max-width: 100%;
  border-radius: 6px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}

/* 基本情報テーブル (右ペイン) */
.basic-info-table {
  width: 100%;
  padding: 0 0.5rem 1rem;
}

.basic-info-row {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
}

.basic-info-row:last-child {
  border-bottom: none;
}

.basic-info-key {
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: bold;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-bottom: 0.2rem;
}

.basic-info-value {
  color: var(--text-primary);
  line-height: 1.65;
  margin: 0;
}

/* === ログインページ === */
body.login-body {
  overflow: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.login-box {
  background: var(--bg-medium);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem 3rem;
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-box h1 {
  color: var(--accent);
  font-size: 1.8rem;
  margin-bottom: 0.4rem;
  letter-spacing: 0.08em;
}

.login-subtitle {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 0.82rem;
  font-style: italic;
  line-height: 1.6;
  opacity: 0.75;
}

.login-box input[type="password"] {
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 1rem;
  margin-bottom: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.login-box input[type="password"]:focus {
  border-color: var(--accent);
}

.login-btn {
  width: 100%;
  padding: 0.7rem;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  color: #0d0d1a;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: background 0.2s;
}

.login-btn:hover {
  background: var(--accent-hover);
}

.error-message {
  background: rgba(180, 60, 60, 0.2);
  border: 1px solid rgba(180, 60, 60, 0.5);
  border-radius: 6px;
  padding: 0.65rem 1rem;
  margin-bottom: 1rem;
  color: #ff9999;
  font-size: 0.85rem;
  text-align: left;
}

/* === ホームページ === */
body.home-body {
  overflow: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.home-container {
  text-align: center;
  max-width: 560px;
}

.home-container h1 {
  color: var(--accent);
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
  letter-spacing: 0.1em;
}

.home-quote {
  color: var(--text-secondary);
  margin-bottom: 3rem;
  font-size: 0.85rem;
  font-style: italic;
  line-height: 1.6;
  max-width: 420px;
  opacity: 0.75;
}

.home-menu {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.menu-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  width: 280px;
  padding: 1rem 1.5rem;
  background: var(--bg-medium);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  transition: border-color 0.2s, background 0.2s, color 0.2s;
  text-align: center;
  text-decoration: none;
}

.menu-item:hover {
  border-color: var(--accent);
  background: var(--bg-card);
  color: var(--accent);
}

.menu-item-main {
  font-size: 1.05rem;
  font-weight: bold;
  letter-spacing: 0.05em;
}

.menu-item-sub {
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}

.menu-item:hover .menu-item-sub {
  color: var(--accent);
  opacity: 0.7;
}

.menu-item.disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

/* === HTMX ローディング状態 === */
.htmx-indicator {
  display: none;
}

.htmx-request .htmx-indicator {
  display: inline;
}

.htmx-request.htmx-indicator {
  display: inline;
}

/* === スクロールバー === */
::-webkit-scrollbar {
  width: 5px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}