/* CDE: Conversational Data Explorer - スタイルシート */
/* ORBIT (sfc-waste-management) から移植・CDE用に調整 */

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --text-primary: #000000;
  --text-secondary: #666666;
  --border: #cccccc;
  --accent: #333333;
  --hover: #e0e0e0;

  /* iOS 26 Glassmorphism - 高透過度 */
  --glass-bg: rgba(255, 255, 255, 0.25);
  --glass-bg-light: rgba(255, 255, 255, 0.35);
  --glass-bg-dark: rgba(0, 0, 0, 0.05);
  --glass-border: rgba(255, 255, 255, 0.4);
  --glass-border-subtle: rgba(255, 255, 255, 0.15);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --glass-shadow-intense: 0 12px 48px rgba(0, 0, 0, 0.15);
  --glass-blur: 16px;
  --glass-blur-light: 10px;
  --glass-radius: 16px;
  --glass-radius-sm: 12px;
  --glass-radius-btn: 8px;
  --glass-radius-xs: 6px;

  /* Layout */
  --header-height: 60px;

  /* Glass Background variants */
  --glass-bg-hover: rgba(255, 255, 255, 0.35);
  --glass-bg-input: rgba(255, 255, 255, 0.5);
  --glass-bg-solid: rgba(255, 255, 255, 0.85);
  --glass-bg-overlay: rgba(0, 0, 0, 0.4);
  --glass-bg-panel: rgba(255, 255, 255, 0.45);
  --glass-bg-panel-solid: rgba(255, 255, 255, 0.75);
  --glass-bg-modal: rgba(235, 238, 242, 0.97);
  --glass-border-medium: rgba(255, 255, 255, 0.25);

  /* Font Size Scale (8段階) */
  --font-xs: 10px;
  --font-sm: 12px;
  --font-base: 13px;
  --font-md: 14px;
  --font-lg: 16px;
  --font-xl: 18px;
  --font-2xl: 22px;
  --font-3xl: 28px;

  /* Data Category Colors */
  --color-utilization: #4a90e2;
  --color-utilization-light: rgba(74, 144, 226, 0.15);
  --color-utilization-hover: #357abd;
  --color-utilization-dark: #2868a0;

  --color-recycle: #22c55e;
  --color-recycle-light: rgba(34, 197, 94, 0.15);
  --color-recycle-hover: #16a34a;

  --color-accent: #6366f1;
  --color-accent-light: rgba(99, 102, 241, 0.12);
  --color-accent-hover: #4f46e5;

  /* Status Colors */
  --color-status-success: #22c55e;
  --color-status-warning: #eab308;
  --color-status-error: #ef4444;

  /* LLM Status Colors */
  --color-llm-connected: #27ae60;
  --color-llm-starting: #f39c12;
  --color-llm-fallback: #2980b9;
  --color-llm-error: #c0392b;
  --color-llm-thinking: #e65100;

  /* Semantic Colors (About等で使用) */
  --color-danger: #dc2626;
  --color-warning-dark: #b45309;
  --color-info: #2563eb;
  --color-vision: #7c3aed;
  --color-neutral: #6b7280;

  /* Neutral Grays (extended) */
  --text-tertiary: #888888;
  --text-muted: #999999;
}

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

body {
  font-family:
    "Rajdhani",
    "M PLUS 1",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: var(--text-primary);
  background: var(--bg-secondary);
  line-height: 1.6;
  overflow: hidden;
}

/* CDE: Material Symbols 基本設定 */
.material-symbols-outlined {
  font-variation-settings:
    "FILL" 0,
    "wght" 300,
    "GRAD" 0,
    "opsz" 20;
  font-size: inherit !important;
  vertical-align: middle;
  line-height: 1;
  display: inline-block;
}

/* CDE: 地図（全画面背景） */
.map-fullscreen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* CDE: ヘッダー（固定） - Glassmorphism */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 2px 16px;
  padding: 8px 20px;
  background: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
  z-index: 110;
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.app-header h1 {
  font-family: "Orbitron", sans-serif;
  font-size: var(--font-2xl);
  font-weight: 700;
  letter-spacing: 1px;
  grid-column: 1;
  grid-row: 1;
}

.region {
  font-size: var(--font-lg);
  font-weight: 400;
  color: var(--text-secondary);
}

.tagline {
  font-family: "Rajdhani", sans-serif;
  font-size: var(--font-base);
  font-weight: 400;
  color: var(--text-secondary);
  margin: 0;
  letter-spacing: 0.3px;
  grid-column: 1;
  grid-row: 2;
}

.version-tag {
  font-size: var(--font-xs);
  color: rgba(0, 0, 0, 0.6);
  margin-left: 8px;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  grid-column: 2;
  grid-row: 1 / 3;
  align-self: center;
}

/* CDE: ナビゲーションリンク */
.nav-link {
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.3);
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius-sm);
  text-decoration: none;
  color: var(--text-primary);
  font-size: var(--font-base);
  font-weight: 600;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.5);
  border-color: rgba(74, 144, 226, 0.5);
}

/* CDE: ヘッダー内のAboutリンク */
.nav-link-header {
  font-family: "Rajdhani", sans-serif;
  font-size: var(--font-base);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.3);
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius-sm);
  color: var(--text-primary);
  transition: all 0.2s ease;
}
.nav-link-header:hover {
  background: rgba(255, 255, 255, 0.5);
  border-color: rgba(74, 144, 226, 0.5);
}
.nav-link-header .material-symbols-outlined {
  font-size: 22px !important;
}

/* CDE: 浮遊パネル共通スタイル - Glassmorphism */
.floating {
  position: fixed;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  box-shadow:
    var(--glass-shadow),
    inset 0 0 0 1px var(--glass-border-subtle);
  z-index: 10;
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  border-bottom: 1px solid var(--glass-border-subtle);
  background: rgba(255, 255, 255, 0.15);
  border-radius: 0;
}

.panel-header h2,
.panel-header h3 {
  font-family: "Orbitron", sans-serif;
  font-size: var(--font-lg);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.minimize-btn,
.close-btn,
.reset-chat-btn {
  width: 30px;
  height: 30px;
  background: transparent;
  border: none;
  font-size: 20px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.2s ease;
}

.reset-chat-btn {
  font-size: var(--font-lg);
  margin-right: 5px;
}

/* CDE: 会話履歴コントロール */
.chat-history-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.history-select {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(0, 255, 255, 0.3);
  border-radius: 4px;
  color: var(--text-primary);
  padding: 4px 8px;
  font-size: 12px;
  width: auto;
  min-width: 120px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.history-select:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-accent);
}

.history-select option {
  background: #ffffff;
  color: #333333;
}

.new-chat-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(0, 255, 255, 0.3);
  border-radius: 4px;
  color: var(--text-primary);
  padding: 4px 8px;
  font-size: var(--font-md);
  cursor: pointer;
  transition: all 0.2s ease;
}

.new-chat-btn:hover {
  background: var(--glass-bg-hover);
  border-color: var(--color-accent);
}

.minimize-btn:hover,
.close-btn:hover,
.reset-chat-btn:hover {
  color: var(--text-primary);
}

.panel-body {
  padding: 20px;
}

/* CDE: チャットドロワー（左スライドイン） - Glassmorphism */
.chat-panel {
  top: 0;
  left: 0;
  bottom: 0;
  width: 380px;
  padding-top: var(--header-height);
  display: flex;
  flex-direction: column;
  border-radius: 0 16px 16px 0;
  border: none;
  border-right: 1px solid var(--glass-border);
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.1);
  background: var(--glass-bg-light);
  z-index: 50;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.chat-panel.open {
  transform: translateX(0);
  padding-top: 80px;
}

.chat-panel .panel-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

/* CDE: ドロワートリガー（NotebookLM風フルハイトハンドル） */
.chat-drawer-trigger {
  position: fixed;
  top: var(--header-height);
  left: 0;
  bottom: 0;
  z-index: 101;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  width: 64px;
  padding: 24px 0 0 0;
  border: none;
  border-right: 1px solid var(--glass-border);
  border-radius: 0;
  background: var(--glass-bg-light);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: none;
  cursor: default;
  font-size: 0;
  color: var(--text-secondary);
  transition: background 0.2s ease;
}

.chat-drawer-trigger-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 9999px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: background 0.2s ease;
}

.chat-drawer-trigger-btn:hover {
  background: rgba(0, 0, 0, 0.08);
  color: var(--text-primary);
}

.chat-drawer-trigger-btn .material-symbols-outlined {
  font-size: 20px !important;
}

/* CDE: ドロワーopen時: トリガー非表示 */
body:has(.chat-panel.open) .chat-drawer-trigger {
  display: none;
}

/* CDE: チャットウィジェットアイコン（ドロワーでは非表示） */
.chat-panel .chat-widget-icon {
  display: none;
  font-size: 22px;
  color: var(--text-secondary);
  flex-shrink: 0;
  align-self: center;
}

.quick-questions {
  margin-bottom: 15px;
  padding: 8px;
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--glass-radius-sm);
  background: rgba(255, 255, 255, 0.15);
}

/* CDE: プルダウンメニュー形式のクイック質問 */
.question-select {
  width: 100%;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--glass-radius-btn);
  font-family: "Rajdhani", sans-serif;
  font-size: var(--font-base);
  font-weight: 500;
  color: #333;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  transition: all 0.2s ease;
}

.question-select:hover {
  background-color: rgba(255, 255, 255, 0.95);
  border-color: rgba(74, 144, 226, 0.4);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.question-select:focus-visible {
  outline: none;
  border-color: rgba(74, 144, 226, 0.6);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.15);
}

.question-select optgroup {
  font-weight: 600;
  color: #333;
  background: #f5f5f5;
  padding: 4px 0;
}

.question-select option {
  padding: 8px 12px;
  font-weight: 400;
  color: #444;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  min-height: 200px;
}

.message {
  padding: 10px 12px;
  margin-bottom: 10px;
  background: rgba(255, 255, 255, 0.3);
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--glass-radius-sm);
  font-size: var(--font-base);
  line-height: 1.6;
  white-space: pre-line;
}

.message.user {
  background: rgba(74, 144, 226, 0.12);
  border-color: rgba(74, 144, 226, 0.25);
}

.message.bot {
  background: rgba(255, 255, 255, 0.35);
}
.chat-messages > .message.bot:first-child {
  white-space: normal;
}

/* CDE: Markdown見出しスタイル */
.message .md-h1 {
  display: block;
  font-size: 1.2em;
  margin: 0.5em 0 0.3em 0;
  color: var(--text-primary);
}

.message .md-h2 {
  display: block;
  font-size: 1.1em;
  margin: 0.4em 0 0.2em 0;
  color: var(--text-primary);
}

.message .md-h3 {
  display: block;
  font-size: 1em;
  margin: 0.3em 0 0.2em 0;
  color: var(--text-secondary);
}

/* CDE: 入力エリア（panel-body外、常時表示） */
.chat-panel > .input-area {
  padding: 12px 16px;
  border-top: 1px solid var(--glass-border-subtle);
}

.input-area {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}

.chat-input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius-sm);
  font-size: var(--font-base);
  font-family: inherit;
  background: rgba(255, 255, 255, 0.35);
  transition: all 0.2s ease;
}

.chat-input:focus-visible {
  outline: none;
  border-color: rgba(74, 144, 226, 0.5);
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.send-btn {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  padding: 10px;
  background: rgba(51, 51, 51, 0.8);
  color: white;
  border: none;
  border-radius: var(--glass-radius-sm);
  font-size: var(--font-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.send-btn:hover {
  background: rgba(0, 0, 0, 0.9);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* CDE: LLMステータスバー */
.llm-status-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  margin: 0 16px 12px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: var(--glass-radius-sm);
  font-size: var(--font-sm);
  color: var(--text-secondary);
  border: 1px solid var(--glass-border-subtle);
}

.llm-status-icon {
  font-size: 12px;
}

.llm-status-text {
  font-weight: 500;
}

/* CDE: ステータス: 接続中 */
.llm-status-bar.connected {
  background: rgba(46, 204, 113, 0.15);
  border-color: rgba(46, 204, 113, 0.3);
  color: var(--color-llm-connected);
}

/* CDE: ステータス: 起動待ち */
.llm-status-bar.starting {
  background: rgba(241, 196, 15, 0.15);
  border-color: rgba(241, 196, 15, 0.3);
  color: var(--color-llm-starting);
}

/* CDE: ステータス: フォールバック */
.llm-status-bar.fallback {
  background: rgba(52, 152, 219, 0.15);
  border-color: rgba(52, 152, 219, 0.3);
  color: var(--color-llm-fallback);
}

/* CDE: ステータス: エラー */
.llm-status-bar.error {
  background: rgba(231, 76, 60, 0.15);
  border-color: rgba(231, 76, 60, 0.3);
  color: var(--color-llm-error);
}

/* CDE: ステータス: 考え中 */
.llm-status-bar.thinking {
  background: rgba(255, 193, 7, 0.35);
  border-color: rgba(255, 152, 0, 0.5);
  color: var(--color-llm-thinking);
}

.llm-status-bar.thinking .llm-status-icon {
  animation: statusThinkingPulse 1.5s ease-in-out infinite;
}

@keyframes statusThinkingPulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.1);
  }
}

/* ====================================
   CDE: グラフフロートパネル
   ==================================== */
.graph-float {
  bottom: 20px;
  right: 16px;
  width: min(650px, 50vw);
  height: min(500px, 60vh);
  background: var(--glass-bg-light);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 100;
  transition:
    width 0.3s ease,
    height 0.3s ease;
}

/* CDE: グラフフロート タブバー */
.graph-float-tabs {
  display: flex;
  border-bottom: 1px solid var(--glass-border-subtle);
  flex-shrink: 0;
}

.graph-float-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 8px 6px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: "M PLUS 1", sans-serif;
  font-size: var(--font-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border-bottom: 2px solid transparent;
}

.graph-float-tab .material-symbols-outlined {
  font-size: 18px;
}

.graph-float-tab:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

.graph-float-tab.active {
  color: var(--text-primary);
  border-bottom-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.1);
}

/* CDE: グラフフロート コンテンツエリア */
.graph-float-content {
  display: none;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.graph-float-content.active {
  display: flex;
  flex-direction: column;
}

/* CDE: グラフフロート内の panel-body を flex で伸縮 */
.graph-float .panel-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow-y: auto;
}

/* CDE: グラフフロート: タブ連動ヘッダー切替 */
.graph-float > .panel-header[data-graph-header] {
  display: none;
  flex-shrink: 0;
}

.graph-float > .panel-header[data-graph-header].active {
  display: flex;
}

/* CDE: 拡大表示状態 */
.graph-float.expanded {
  width: min(800px, 65vw);
  height: min(650px, 80vh);
  z-index: 200;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* CDE: グラフフロート拡大時の背景オーバーレイ */
.graph-float-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.3);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;
}

.graph-float-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* CDE: パネルヘッダーのコントロールボタン群 */
.panel-controls {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* CDE: フロートパネル: ヘッダーボタン統一スタイル */
.graph-float > .panel-header .control-btn {
  width: 28px;
  height: 28px;
  font-size: 20px;
  border: 1px solid var(--glass-border-subtle);
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--glass-radius-xs);
  cursor: pointer;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.graph-float > .panel-header .control-btn:hover {
  background: rgba(255, 255, 255, 0.35);
  color: var(--text-primary);
  transform: scale(1.05);
}

/* CDE: 閉じるボタン: ホバーで赤 */
.graph-float > .panel-header .control-btn.close-btn:hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.4);
  color: rgb(239, 68, 68);
}

/* CDE: グラフコンテナ */
.chart-container {
  position: relative;
  padding: 15px;
  background: rgba(255, 255, 255, 0.25);
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--glass-radius-sm);
  margin-bottom: 15px;
  flex: 1;
  min-height: 0;
}

.chart-container canvas {
  max-height: 100%;
}

/* ====================================
   CDE: About モーダル
   ==================================== */
.about-modal {
  border: none;
  background: transparent;
  max-width: none;
  max-height: none;
  width: 100%;
  height: 100%;
  overflow-y: auto;
  padding: 40px 20px;
}
.about-modal[open] {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}
.about-modal::backdrop {
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.about-modal-content {
  position: relative;
  width: 100%;
  max-width: 900px;
  background: rgba(235, 238, 242, 0.97);
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
}
.about-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.3);
}
.about-modal-header h2 {
  font-family: "Orbitron", sans-serif;
  font-size: var(--font-xl);
  font-weight: 700;
  letter-spacing: 0.5px;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.about-modal-close {
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--glass-radius-btn);
  font-size: var(--font-xl);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-modal-close:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-primary);
}
.about-modal-body {
  padding: 0 30px 30px;
  max-height: 75vh;
  overflow-y: auto;
}

/* CDE: About モーダル内コンテンツスタイル */
.about-modal-body .hero-section {
  text-align: center;
  padding: 40px 30px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  margin: 30px 0;
}
.about-modal-body .hero-title {
  font-family: "Orbitron", sans-serif;
  font-size: 36px;
  font-weight: 900;
  letter-spacing: 2px;
  margin-bottom: 8px;
}
.about-modal-body .hero-subtitle {
  font-family: "Rajdhani", sans-serif;
  font-size: var(--font-base);
  color: var(--text-secondary);
  letter-spacing: 1px;
  margin-bottom: 24px;
}
.about-modal-body .hero-catchcopy {
  font-family: "Rajdhani", sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.about-modal-body .hero-description {
  font-size: var(--font-base);
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto;
}
.about-modal-body .about-section {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  padding: 30px;
  margin-bottom: 24px;
}
.about-modal-body .section-title {
  font-family: "Orbitron", sans-serif;
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.about-modal-body .section-icon {
  font-size: 24px;
}
.about-modal-body .arch-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
  margin-bottom: 20px;
}
.about-modal-body .arch-feature-card {
  padding: 12px;
  background: rgba(74, 144, 226, 0.1);
  border: 1px solid rgba(74, 144, 226, 0.3);
  border-radius: var(--glass-radius-btn);
  text-align: center;
}
.about-modal-body .arch-feature-icon {
  font-size: 20px;
  margin-bottom: 4px;
}
.about-modal-body .arch-feature-title {
  font-family: "Orbitron", sans-serif;
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 3px;
}
.about-modal-body .arch-feature-desc {
  font-size: 11px;
  color: var(--text-secondary);
}
.about-modal-body .cta-section {
  text-align: center;
  padding: 40px 30px;
  background: linear-gradient(
    135deg,
    rgba(74, 144, 226, 0.15) 0%,
    rgba(34, 197, 94, 0.15) 100%
  );
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  margin-bottom: 0;
}
.about-modal-body .cta-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: rgba(51, 51, 51, 0.9);
  color: white;
  text-decoration: none;
  border: none;
  border-radius: var(--glass-radius-sm);
  font-family: "Orbitron", sans-serif;
  font-size: var(--font-base);
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.about-modal-body .cta-button:hover {
  background: rgba(0, 0, 0, 1);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

/* CDE: About モーダル レスポンシブ */
@media (max-width: 768px) {
  .about-modal {
    padding: 20px 10px;
  }
  .about-modal-body .hero-title {
    font-size: 24px;
  }
  .about-modal-body .hero-catchcopy {
    font-size: 18px;
  }
  .about-modal-body .about-section {
    padding: 20px;
  }
  .about-modal-body .arch-features {
    grid-template-columns: 1fr;
  }
}

/* ====================================
   CDE: Settings パネル
   ==================================== */
.settings-btn-wrapper {
  position: relative;
}

.settings-panel {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 10px;
  width: 300px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  box-shadow: var(--glass-shadow-intense);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 16px;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s ease;
}

.settings-panel.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.settings-section {
  margin-bottom: 16px;
}

.settings-section:last-child {
  margin-bottom: 0;
}

.settings-section-title {
  font-family: "Rajdhani", sans-serif;
  font-size: var(--font-md);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.settings-section-title .material-symbols-outlined {
  font-size: 18px !important;
}

.settings-radio-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.settings-radio-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--glass-radius-btn);
  cursor: pointer;
  transition: background 0.15s ease;
}

.settings-radio-option:hover {
  background: rgba(0, 0, 0, 0.04);
}

.settings-radio-option input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.settings-radio-option input[type="radio"]:checked {
  border-color: var(--color-utilization);
}

.settings-radio-option input[type="radio"]:checked::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-utilization);
}

.settings-radio-label {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.settings-radio-name {
  font-size: var(--font-base);
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.settings-radio-name .material-symbols-outlined {
  font-size: 16px !important;
}

.settings-radio-desc {
  font-size: var(--font-sm);
  color: var(--text-secondary);
}

.settings-radio-disabled {
  opacity: 0.4;
  pointer-events: none;
}

.settings-note {
  font-size: var(--font-xs);
  color: var(--text-secondary);
  margin-top: 8px;
  padding-left: 4px;
}

/* CDE: ダークモード: Settings パネル */
body.dark-mode .settings-panel {
  background: var(--glass-bg-modal);
  border-color: var(--glass-border);
}

body.dark-mode .settings-radio-option:hover {
  background: var(--glass-bg-hover);
}

body.dark-mode .settings-radio-option input[type="radio"] {
  border-color: var(--text-muted);
}

body.dark-mode .settings-radio-name {
  color: var(--text-primary);
}

body.dark-mode .settings-radio-desc {
  color: var(--text-secondary);
}

/* ====================================
   CDE: レスポンシブ
   ==================================== */
@media (max-width: 1024px) {
  .graph-float,
  .graph-float.chart-panel,
  .chart-panel {
    width: min(400px, 40vw);
  }
}

@media (max-width: 768px) {
  .app-header {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

  .app-header h1 {
    font-size: var(--font-xl);
  }

  .graph-float,
  .graph-float.chart-panel,
  .chart-panel {
    width: calc(100% - 40px);
    right: 20px;
    left: 20px;
    bottom: 70px;
  }

  .chat-panel {
    width: 100%;
    border-radius: 0;
  }
}

/* ====================================
   CDE: ダークモード (body.dark-mode でCSS変数を上書き)
   ==================================== */
body.dark-mode {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0b0;
  --border: #3a3a5c;
  --accent: #c0c0d0;
  --hover: #2a2a4e;

  /* Glassmorphism - ダーク版 */
  --glass-bg: rgba(30, 30, 60, 0.6);
  --glass-bg-light: rgba(40, 40, 80, 0.5);
  --glass-bg-dark: rgba(0, 0, 0, 0.2);
  --glass-border: rgba(100, 100, 160, 0.3);
  --glass-border-subtle: rgba(100, 100, 160, 0.15);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --glass-shadow-intense: 0 12px 48px rgba(0, 0, 0, 0.4);
  --glass-bg-hover: rgba(60, 60, 100, 0.4);
  --glass-bg-input: rgba(20, 20, 50, 0.6);
  --glass-bg-solid: rgba(30, 30, 60, 0.9);
  --glass-bg-overlay: rgba(0, 0, 0, 0.6);
  --glass-bg-panel: rgba(20, 20, 50, 0.7);
  --glass-bg-panel-solid: rgba(20, 20, 50, 0.85);
  --glass-bg-modal: rgba(25, 25, 55, 0.97);
  --glass-border-medium: rgba(100, 100, 160, 0.2);

  /* Neutral Grays - ダーク */
  --text-tertiary: #8888a0;
  --text-muted: #6666a0;

  /* Semantic Colors - ダーク（明度を上げてコントラスト確保） */
  --color-warning-dark: #f59e0b;
  --color-info: #60a5fa;
  --color-vision: #a78bfa;
  --color-neutral: #9ca3af;
}

/* CDE: ダークモード: ヘッダー */
body.dark-mode .app-header {
  background: var(--glass-bg-panel);
  border-bottom-color: var(--glass-border);
  box-shadow: var(--glass-shadow);
}

body.dark-mode .app-header h1 {
  color: var(--text-primary);
}

body.dark-mode .region {
  color: var(--text-secondary);
}

body.dark-mode .tagline {
  color: var(--text-secondary);
}

body.dark-mode .version-tag {
  color: var(--text-tertiary);
}

/* CDE: ダークモード: ナビゲーションボタン */
body.dark-mode .nav-link,
body.dark-mode .nav-link-header {
  background: var(--glass-bg-light);
  border-color: var(--glass-border);
  color: var(--text-primary);
}

body.dark-mode .nav-link:hover,
body.dark-mode .nav-link-header:hover {
  background: rgba(60, 60, 100, 0.6);
  border-color: rgba(74, 144, 226, 0.5);
}

/* CDE: ダークモード: フローティングパネル */
body.dark-mode .floating {
  background: var(--glass-bg-panel);
  border-color: var(--glass-border);
  box-shadow:
    var(--glass-shadow),
    inset 0 0 0 1px var(--glass-border-subtle);
}

body.dark-mode .chat-drawer-trigger {
  background: var(--glass-bg-panel);
  border-right-color: var(--glass-border);
  color: var(--text-secondary);
}
body.dark-mode .chat-drawer-trigger-btn:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

/* CDE: ダークモード: パネルヘッダー */
body.dark-mode .panel-header {
  background: rgba(40, 40, 80, 0.3);
  border-bottom-color: var(--glass-border-medium);
}

body.dark-mode .panel-header h3 {
  color: var(--text-primary);
}

/* CDE: ダークモード: クイック質問セレクト */
body.dark-mode .quick-questions {
  background: rgba(30, 30, 60, 0.4);
  border-color: var(--glass-border);
}

body.dark-mode .question-select {
  background-color: var(--glass-bg-input);
  border-color: var(--glass-border);
  color: var(--text-primary);
}

body.dark-mode .question-select:hover {
  background-color: rgba(40, 40, 80, 0.8);
  border-color: rgba(74, 144, 226, 0.4);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

body.dark-mode .question-select optgroup {
  background: #1a1a2e;
  color: var(--text-primary);
}

body.dark-mode .question-select option {
  background: #1a1a2e;
  color: var(--text-secondary);
}

/* CDE: ダークモード: 入力フィールド */
body.dark-mode .chat-input {
  background: var(--glass-bg-input);
  border-color: var(--glass-border);
  color: var(--text-primary);
}

body.dark-mode .chat-input::placeholder {
  color: var(--text-muted);
}

body.dark-mode .send-btn {
  background: rgba(40, 40, 80, 0.6);
  color: var(--text-primary);
  border-color: var(--glass-border);
}

body.dark-mode .send-btn:hover {
  background: rgba(60, 60, 100, 0.7);
}

/* CDE: ダークモード: チャットウィジェットアイコン */
body.dark-mode .chat-widget-icon {
  color: var(--text-secondary);
}

/* CDE: ダークモード: ボタン */
body.dark-mode .minimize-btn {
  color: var(--text-secondary);
}

body.dark-mode .minimize-btn:hover {
  background: var(--glass-bg-hover);
}

body.dark-mode .new-chat-btn {
  background: rgba(40, 40, 80, 0.4);
  border-color: var(--glass-border);
  color: var(--text-secondary);
}

body.dark-mode .new-chat-btn:hover {
  background: rgba(60, 60, 100, 0.5);
  border-color: var(--color-accent);
  color: var(--text-primary);
}

body.dark-mode .history-select {
  background: rgba(40, 40, 80, 0.4);
  border-color: var(--glass-border);
  color: var(--text-primary);
}

body.dark-mode .history-select:hover {
  background: rgba(60, 60, 100, 0.5);
  border-color: var(--color-accent);
}

body.dark-mode .history-select option {
  background: var(--glass-bg-panel-solid);
  color: var(--text-primary);
}

/* CDE: ダークモード: セレクト共通 */
body.dark-mode select {
  background: var(--glass-bg-input);
  border-color: var(--glass-border);
  color: var(--text-primary);
}

/* CDE: ダークモード: チャットメッセージ */
body.dark-mode .message.bot {
  background: rgba(30, 30, 60, 0.5);
  color: var(--text-primary);
}

body.dark-mode .message.user {
  background: rgba(74, 144, 226, 0.2);
  color: var(--text-primary);
}

/* CDE: ダークモード: グラフフロートパネル */
body.dark-mode .graph-float,
body.dark-mode .chart-panel {
  background: var(--glass-bg-panel-solid);
  border-color: var(--glass-border);
}

body.dark-mode .graph-float.expanded {
  background: rgba(20, 20, 50, 0.95);
}

body.dark-mode .graph-float-tabs {
  border-bottom-color: var(--glass-border-medium);
}

body.dark-mode .graph-float-tab {
  color: var(--text-secondary);
}

body.dark-mode .graph-float-tab:hover {
  background: rgba(60, 60, 100, 0.3);
  color: var(--text-primary);
}

body.dark-mode .graph-float-tab.active {
  color: var(--text-primary);
  background: rgba(60, 60, 100, 0.2);
  border-bottom-color: rgba(130, 140, 255, 0.8);
}

body.dark-mode .chart-container {
  background: rgba(20, 20, 50, 0.4);
  border-color: var(--glass-border-medium);
}

/* CDE: ダークモード: グラフフロート ヘッダーボタン */
body.dark-mode .graph-float > .panel-header .control-btn {
  background: rgba(40, 40, 80, 0.5);
  border-color: var(--glass-border);
  color: var(--text-secondary);
}

body.dark-mode .graph-float > .panel-header .control-btn:hover {
  background: rgba(60, 60, 100, 0.6);
  color: var(--text-primary);
}

/* CDE: ダークモード: Aboutモーダル */
body.dark-mode .about-modal-content {
  background: var(--glass-bg-modal);
}

body.dark-mode .about-modal-body .hero-section,
body.dark-mode .about-modal-body .about-section {
  background: var(--glass-bg);
}

body.dark-mode .about-modal-body h2,
body.dark-mode .about-modal-body h3 {
  color: var(--text-primary);
}

body.dark-mode .about-modal-body p {
  color: var(--text-secondary);
}

/* CDE: ダークモード: Aboutモーダル ヘッダー */
body.dark-mode .about-modal-header {
  background: rgba(40, 40, 80, 0.4);
  border-bottom-color: var(--glass-border-medium);
}

body.dark-mode .about-modal-close {
  border-color: var(--glass-border);
  color: var(--text-secondary);
}

body.dark-mode .about-modal-close:hover {
  background: var(--glass-border-medium);
  color: var(--text-primary);
}

body.dark-mode .about-modal-header h2 {
  color: var(--text-primary);
}

/* CDE: ダークモード: Aboutモーダル 内部カード */
body.dark-mode .about-modal-body .arch-feature-card {
  background: var(--color-utilization-light);
  border-color: rgba(74, 144, 226, 0.35);
}

body.dark-mode .about-modal-body .arch-feature-title {
  color: var(--text-primary);
}

body.dark-mode .about-modal-body .arch-feature-icon {
  color: var(--color-utilization);
}

body.dark-mode .about-modal-body .hero-title {
  color: var(--text-primary);
}

body.dark-mode .about-modal-body .section-title {
  color: var(--text-primary);
}

body.dark-mode .about-modal-body .section-icon {
  color: var(--text-primary);
}

body.dark-mode .about-modal-body .cta-section {
  background: linear-gradient(
    135deg,
    rgba(74, 144, 226, 0.1) 0%,
    rgba(34, 197, 94, 0.1) 100%
  );
}

body.dark-mode .about-modal-body .cta-button {
  background: rgba(100, 100, 160, 0.4);
  border: 1px solid rgba(100, 100, 160, 0.5);
}

body.dark-mode .about-modal-body .cta-button:hover {
  background: rgba(120, 120, 180, 0.5);
}

/* CDE: ダークモード: スクロールバー */
body.dark-mode ::-webkit-scrollbar-track {
  background: rgba(20, 20, 50, 0.3);
}

body.dark-mode ::-webkit-scrollbar-thumb {
  background: var(--glass-border);
}

body.dark-mode ::-webkit-scrollbar-thumb:hover {
  background: rgba(100, 100, 160, 0.5);
}