/* ================== リセット & 変数 ================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green-900: #1B4332;  --green-800: #2D6A4F;  --green-700: #40916C;
  --green-600: #52B788;  --green-400: #74C69D;  --green-200: #B7E4C7;
  --green-100: #D8F3DC;  --green-50:  #F0FAF2;
  --bg:        #F5FAF6;  --surface:   #FFFFFF;  --surface2:  #F0FAF2;
  --border:    #C8E6D4;  --text:      #1B4332;  --text-muted:#5A8A6E;
  --shadow:    0 2px 12px rgba(45,106,79,0.10);
  --radius:    12px;     --radius-sm: 8px;
  --sidebar-w: 260px;    --transition: 0.2s ease;
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-size: 14px; color: var(--text); background: var(--bg); line-height: 1.6;
}

/* ================== チャット レイアウト ================== */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0; width: var(--sidebar-w);
  background: var(--green-900); color: #fff;
  display: flex; flex-direction: column; overflow: hidden;
  transition: transform var(--transition); z-index: 100;
}
.sidebar.collapsed { transform: translateX(calc(-1 * var(--sidebar-w))); }

.main {
  margin-left: var(--sidebar-w); height: 100vh;
  display: flex; flex-direction: column;
  transition: margin-left var(--transition); overflow: hidden;
}
.main.expanded { margin-left: 0; }

/* ---- サイドバー内 ---- */
.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 16px 14px; border-bottom: 1px solid rgba(255,255,255,0.10); flex-shrink: 0;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { font-size: 22px; }
.logo-text { font-size: 16px; font-weight: 700; color: #fff; }

.sidebar-toggle {
  background: none; border: none; color: rgba(255,255,255,0.6);
  font-size: 20px; cursor: pointer; padding: 2px 6px; border-radius: 4px;
  transition: color var(--transition), background var(--transition);
}
.sidebar-toggle:hover { color: #fff; background: rgba(255,255,255,0.1); }

.sidebar-open-btn {
  display: none; position: fixed; top: 14px; left: 14px; z-index: 99;
  background: var(--green-800); color: #fff; border: none;
  border-radius: var(--radius-sm); width: 38px; height: 38px;
  font-size: 18px; cursor: pointer; box-shadow: var(--shadow);
  align-items: center; justify-content: center; transition: background var(--transition);
}
.sidebar-open-btn:hover { background: var(--green-700); }

.sidebar-section {
  padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,0.07); flex-shrink: 0;
}
.settings-section { overflow-y: auto; }

.status-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.08); border-radius: 20px; padding: 5px 12px; font-size: 12px;
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #aaa; flex-shrink: 0; }
.status-dot.online  { background: #4ade80; box-shadow: 0 0 6px #4ade80; }
.status-dot.offline { background: #f87171; }
.status-dot.loading { background: #fbbf24; animation: pulse 1s infinite; }
@keyframes pulse { 0%,100%{opacity:1}50%{opacity:0.4} }

.nav-tabs { display: flex; padding: 10px 10px 0; gap: 4px; flex-shrink: 0; }
.nav-tab {
  flex: 1; background: none; border: none; color: rgba(255,255,255,0.55);
  padding: 8px 4px; border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  cursor: pointer; font-size: 13px; font-weight: 500;
  display: flex; align-items: center; justify-content: center; gap: 5px;
  transition: color var(--transition), background var(--transition);
  border-bottom: 2px solid transparent;
}
.nav-tab:hover  { color: rgba(255,255,255,0.85); }
.nav-tab.active { color: #fff; border-bottom-color: var(--green-400); background: rgba(255,255,255,0.06); }

.section-title { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(255,255,255,0.45); margin-bottom: 8px; }
.setting-label { display: block; font-size: 12px; color: rgba(255,255,255,0.7); margin: 10px 0 5px; }

.setting-select {
  width: 100%; background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.15); color: #fff;
  border-radius: var(--radius-sm); padding: 7px 10px;
  font-size: 13px; cursor: pointer; outline: none; transition: border-color var(--transition);
}
.setting-select:focus { border-color: var(--green-400); }
.setting-select option { background: var(--green-800); }

.setting-slider { width: 100%; accent-color: var(--green-400); cursor: pointer; height: 4px; border-radius: 2px; }

.db-list { display: flex; flex-direction: column; gap: 5px; }
.db-loading { color: rgba(255,255,255,0.45); font-size: 12px; }
.db-badge { display: flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.07); border-radius: var(--radius-sm); padding: 6px 10px; font-size: 12px; color: rgba(255,255,255,0.8); }
.db-badge::before { content:''; width:6px; height:6px; border-radius:50%; background:var(--green-400); flex-shrink:0; }

.sidebar-footer { margin-top: auto; padding: 12px 16px; border-top: 1px solid rgba(255,255,255,0.07); flex-shrink: 0; }

/* ---- サイドバー内ユーザー情報 ---- */
.sidebar-user { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; font-size: 12px; color: rgba(255,255,255,0.8); }
.sidebar-link       { color: rgba(255,255,255,0.65); text-decoration: none; font-size: 12px; }
.sidebar-link:hover { color: #fff; }
.sidebar-admin-link { color: var(--green-400); font-weight: 600; font-size: 12px; text-decoration: none; }

.btn-outline {
  display: block; width: 100%; text-align: center;
  background: rgba(255,255,255,0.10); border: 1px solid rgba(255,255,255,0.20);
  color: #fff; border-radius: var(--radius-sm); padding: 7px; font-size: 12px;
  cursor: pointer; text-decoration: none; transition: background var(--transition);
  margin-bottom: 6px;
}
.btn-outline:hover { background: rgba(255,255,255,0.18); }

.btn-danger {
  width: 100%; background: rgba(239,68,68,0.15);
  border: 1px solid rgba(239,68,68,0.3); color: #fca5a5;
  border-radius: var(--radius-sm); padding: 8px; font-size: 13px; cursor: pointer;
  transition: background var(--transition);
}
.btn-danger:hover { background: rgba(239,68,68,0.25); }

/* ================== タブコンテンツ ================== */
.tab-content { display: none; flex: 1; overflow: hidden; }
.tab-content.active { display: flex; flex-direction: column; }

/* ================== チャット ================== */
.chat-container {
  display: flex; flex-direction: column; height: 100%;
  max-width: 860px; width: 100%; margin: 0 auto; padding: 0 16px;
}
.messages {
  flex: 1; overflow-y: auto; padding: 24px 0 8px;
  display: flex; flex-direction: column; gap: 20px; scroll-behavior: smooth;
}
.messages::-webkit-scrollbar { width: 5px; }
.messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ウェルカム */
.welcome { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.welcome-icon { font-size: 48px; margin-bottom: 16px; }
.welcome h2   { font-size: 20px; color: var(--text); margin-bottom: 8px; }
.welcome-sub  { font-size: 12px; margin-top: 6px; }

/* お客様の声バナー (F-371) */
.voice-banner {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  background: var(--green-50); border: 1px solid var(--green-200);
  border-radius: var(--radius-sm); padding: 8px 14px;
  margin-bottom: 6px; font-size: 12px; color: var(--text-muted); flex-shrink: 0;
}
.voice-link {
  color: var(--green-700); font-weight: 600; text-decoration: none;
  border: 1px solid var(--green-200); border-radius: 20px; padding: 3px 10px;
  font-size: 12px; transition: background var(--transition);
}
.voice-link:hover { background: var(--green-100); }

/* サーベイ誘導 (F-370) */
.survey-nudge {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  background: var(--green-50); border: 1px solid var(--green-200);
  border-radius: var(--radius-sm); padding: 10px 14px; font-size: 13px;
  color: var(--green-800);
}

/* 利用制限バナー (F-306) */
.limit-banner {
  background: #fef9c3; border: 1px solid #fde047;
  border-radius: var(--radius-sm); padding: 10px 14px;
  font-size: 13px; color: #713f12; margin-bottom: 8px;
}
.limit-banner a { color: var(--green-700); font-weight: 600; }

/* ================== メッセージ ================== */
.message { display: flex; gap: 12px; align-items: flex-start; }
.message.user { flex-direction: row-reverse; }

.avatar {
  width: 34px; height: 34px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; flex-shrink: 0; font-weight: 600;
}
.message.user      .avatar { background: var(--green-700); color: #fff; }
.message.assistant .avatar { background: var(--green-100); color: var(--green-800); border: 1px solid var(--border); }

.bubble {
  max-width: 78%; border-radius: var(--radius); padding: 12px 16px;
  line-height: 1.7; font-size: 14px; word-break: break-word;
}
.message.user      .bubble { background: var(--green-700); color: #fff; border-bottom-right-radius: 4px; }
.message.assistant .bubble { background: var(--surface); color: var(--text); border: 1px solid var(--border); border-bottom-left-radius: 4px; box-shadow: var(--shadow); }

/* お問い合わせリンク (F-304) */
.inquiry-link-box {
  margin-top: 10px; padding: 8px 12px;
  background: var(--green-50); border: 1px solid var(--green-200);
  border-radius: var(--radius-sm); font-size: 12px;
  display: flex; align-items: center; gap: 8px;
}
.inquiry-link-box a { color: var(--green-700); font-weight: 600; text-decoration: none; }
.inquiry-link-box a:hover { text-decoration: underline; }

/* マークダウン */
.message.assistant .bubble p { margin: 6px 0; }
.message.assistant .bubble ul, .message.assistant .bubble ol { padding-left: 18px; margin: 6px 0; }
.message.assistant .bubble li { margin: 3px 0; }
.message.assistant .bubble strong { color: var(--green-800); }
.message.assistant .bubble code { background: var(--green-50); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; font-size: 12px; font-family: monospace; }
.message.assistant .bubble pre  { background: var(--green-50); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px; overflow-x: auto; margin: 8px 0; }
.message.assistant .bubble h1,.message.assistant .bubble h2,.message.assistant .bubble h3 { color: var(--green-800); margin: 10px 0 5px; }

/* バブルメタ */
.bubble-meta { display: flex; align-items: center; gap: 10px; margin-top: 8px; flex-wrap: wrap; }
.timestamp { font-size: 11px; color: rgba(255,255,255,0.55); }
.message.assistant .timestamp { color: var(--text-muted); }

.copy-btn { background: none; border: none; cursor: pointer; font-size: 12px; padding: 2px 7px; border-radius: 4px; color: rgba(255,255,255,0.6); transition: background var(--transition); }
.copy-btn:hover { background: rgba(255,255,255,0.15); color: #fff; }
.message.assistant .copy-btn { color: var(--text-muted); }
.message.assistant .copy-btn:hover { background: var(--green-100); color: var(--text); }

.docs-btn { color: var(--green-700); border: 1px solid var(--border); background: var(--surface2); font-size: 12px; padding: 2px 7px; border-radius: 4px; cursor: pointer; transition: background var(--transition); }
.docs-btn:hover { background: var(--green-100); }

.btn-mypage { color: var(--green-700); font-size: 13px; text-decoration: none; font-weight: 600; }
.btn-mypage:hover { text-decoration: underline; }

/* フィードバックボタン (F-360) */
.feedback-row { display: flex; align-items: center; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.fb-btn { background: none; border: 1px solid var(--border); border-radius: 20px; padding: 3px 11px; font-size: 12px; cursor: pointer; transition: background var(--transition), border-color var(--transition); color: var(--text-muted); }
.fb-btn:hover:not(:disabled) { background: var(--green-100); border-color: var(--green-400); }
.fb-btn.selected-good { background: #dcfce7; border-color: #4ade80; color: #16a34a; }
.fb-btn.selected-bad  { background: #fee2e2; border-color: #f87171; color: #dc2626; }
.fb-btn:disabled      { opacity: 0.55; cursor: not-allowed; }
.fb-thanks            { font-size: 11px; color: var(--text-muted); }

/* 追加質問 (F-392) */
.clarify-card { max-width: 78%; background: var(--surface); border: 1.5px solid var(--green-400); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.clarify-title { font-size: 13px; font-weight: 600; color: var(--green-800); margin-bottom: 10px; }
.clarify-question { margin-bottom: 10px; }
.clarify-q-text { font-size: 13px; color: var(--text); margin-bottom: 8px; }
.clarify-options { display: flex; flex-wrap: wrap; gap: 7px; }
.clarify-opt-btn { background: var(--surface2); border: 1px solid var(--border); border-radius: 20px; padding: 5px 14px; font-size: 13px; cursor: pointer; transition: background var(--transition), border-color var(--transition); }
.clarify-opt-btn:hover:not(:disabled) { background: var(--green-100); border-color: var(--green-400); }
.clarify-opt-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.clarify-opt-btn.skip { color: var(--text-muted); font-style: italic; }
.clarify-free-input { display: flex; gap: 6px; margin-top: 8px; }
.clarify-text-input { flex: 1; border: 1px solid var(--border); border-radius: 20px; padding: 5px 12px; font-size: 13px; background: var(--surface2); color: var(--text); outline: none; transition: border-color var(--transition); }
.clarify-text-input:focus { border-color: var(--green-400); }
.clarify-text-input:disabled { opacity: 0.5; cursor: not-allowed; }
.clarify-free-btn { background: var(--green-600,#4a7c59); color: #fff; border: none; border-radius: 20px; padding: 5px 14px; font-size: 13px; cursor: pointer; transition: background var(--transition); white-space: nowrap; }
.clarify-free-btn:hover:not(:disabled) { background: var(--green-700,#3a6347); }
.clarify-free-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.clarify-answered { opacity: 0.7; }

/* 思考中 */
.thinking { display: flex; align-items: center; gap: 10px; padding: 14px 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-muted); font-size: 13px; box-shadow: var(--shadow); }
.thinking-dots span { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--green-600); margin: 0 2px; animation: bounce 1.2s infinite; }
.thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.thinking-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes bounce { 0%,80%,100%{transform:translateY(0)}40%{transform:translateY(-6px)} }

/* クエリタグ */
.query-tag { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; background: var(--green-50); border: 1px solid var(--green-200); color: var(--green-800); border-radius: 20px; padding: 2px 9px; margin-bottom: 6px; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* エラーバブル (F-350-353) */
.error-bubble { max-width: 78%; background: #fff5f5; border: 1px solid #fca5a5; color: #b91c1c; border-radius: var(--radius); padding: 12px 16px; font-size: 13px; line-height: 1.6; }
.error-bubble a { color: #b91c1c; font-weight: 600; }

/* ================== 入力エリア ================== */
.input-area { padding: 8px 0 12px; flex-shrink: 0; }
.input-container { display: flex; align-items: flex-end; gap: 10px; background: var(--surface); border: 1.5px solid var(--border); border-radius: var(--radius); padding: 10px 12px; box-shadow: var(--shadow); transition: border-color var(--transition); }
.input-container:focus-within { border-color: var(--green-600); }
.question-input { flex: 1; border: none; outline: none; background: transparent; font-size: 14px; color: var(--text); resize: none; max-height: 160px; overflow-y: auto; line-height: 1.5; font-family: inherit; }
.question-input::placeholder { color: var(--text-muted); }
.send-btn { width: 36px; height: 36px; border-radius: var(--radius-sm); background: var(--green-700); border: none; color: #fff; font-size: 16px; cursor: pointer; flex-shrink: 0; display: flex; align-items: center; justify-content: center; transition: background var(--transition), transform var(--transition); }
.send-btn:hover:not(:disabled)  { background: var(--green-800); transform: scale(1.05); }
.send-btn:disabled { background: var(--border); cursor: not-allowed; transform: none; }
.input-hints { padding: 4px 4px 0; font-size: 11px; color: var(--text-muted); min-height: 16px; }
.disclaimer { padding: 6px 4px 0; font-size: 11px; color: var(--text-muted); text-align: center; }

/* ================== 履歴タブ ================== */
.history-container { display: flex; flex-direction: column; height: 100%; max-width: 860px; width: 100%; margin: 0 auto; padding: 20px 16px 16px; gap: 14px; }
.history-header { display: flex; align-items: center; justify-content: space-between; flex-shrink: 0; }
.history-header h2 { font-size: 17px; font-weight: 700; color: var(--text); }
.history-list { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; }
.history-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow); transition: border-color var(--transition); }
.history-card:hover { border-color: var(--green-400); }
.history-card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 8px; gap: 10px; }
.history-question { font-weight: 600; color: var(--text); font-size: 14px; line-height: 1.4; }
.history-meta     { font-size: 11px; color: var(--text-muted); flex-shrink: 0; white-space: nowrap; }
.history-response { font-size: 13px; color: var(--text); line-height: 1.6; background: var(--surface2); border-radius: var(--radius-sm); padding: 8px 12px; max-height: 120px; overflow: hidden; }
.history-response.expanded { max-height: none; }
.history-expand-btn { font-size: 12px; color: var(--green-700); background: none; border: none; cursor: pointer; padding: 4px 0; font-weight: 500; }
.history-docs-btn   { font-size: 12px; color: var(--green-700); background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 3px 9px; cursor: pointer; transition: background var(--transition); }
.history-docs-btn:hover { background: var(--green-100); }
.empty-state { text-align: center; color: var(--text-muted); padding: 40px 20px; font-size: 14px; }

/* ================== モーダル ================== */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.45); z-index: 200; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay.open { display: flex; }
.modal { background: var(--surface); border-radius: var(--radius); max-width: 760px; width: 100%; max-height: 88vh; display: flex; flex-direction: column; box-shadow: 0 8px 40px rgba(0,0,0,0.25); }
.modal-sm { max-width: 440px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); flex-shrink: 0; }
.modal-header h3 { font-size: 16px; color: var(--text); }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 18px; cursor: pointer; padding: 2px 6px; border-radius: 4px; line-height: 1; transition: background var(--transition); }
.modal-close:hover { background: var(--green-100); color: var(--text); }
.modal-body { overflow-y: auto; padding: 16px 20px; display: flex; flex-direction: column; gap: 12px; }

/* フィードバックモーダル */
.feedback-label { font-size: 13px; color: var(--text); margin-bottom: 8px; }
.feedback-textarea { width: 100%; border: 1.5px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; font-size: 13px; font-family: inherit; resize: vertical; outline: none; color: var(--text); transition: border-color var(--transition); }
.feedback-textarea:focus { border-color: var(--green-600); }
.feedback-modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 10px; }

.btn-primary  { background: var(--green-700); color: #fff; border: none; border-radius: var(--radius-sm); padding: 8px 18px; font-size: 13px; cursor: pointer; transition: background var(--transition); }
.btn-primary:hover { background: var(--green-800); }
.btn-secondary { background: var(--surface2); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 8px 18px; font-size: 13px; cursor: pointer; transition: background var(--transition); }
.btn-secondary:hover { background: var(--green-100); }

/* ドキュメントカード */
.doc-card { border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.doc-card-header { background: var(--green-50); padding: 8px 14px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); cursor: pointer; }
.doc-card-header:hover { background: var(--green-100); }
.doc-num    { font-weight: 600; font-size: 13px; color: var(--green-800); }
.doc-score  { font-size: 11px; color: var(--text-muted); background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 2px 8px; }
.doc-meta   { padding: 8px 14px; background: var(--surface2); border-bottom: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 6px; }
.meta-tag   { font-size: 11px; background: var(--surface); border: 1px solid var(--border); color: var(--text-muted); border-radius: 4px; padding: 2px 7px; }
.doc-content { padding: 10px 14px; font-size: 13px; color: var(--text); line-height: 1.6; white-space: pre-wrap; word-break: break-word; max-height: 260px; overflow-y: auto; display: none; }
.doc-content.open { display: block; }

/* ================== トースト ================== */
.toast { position: fixed; bottom: 24px; right: 24px; background: var(--green-800); color: #fff; padding: 10px 18px; border-radius: var(--radius-sm); font-size: 13px; box-shadow: 0 4px 16px rgba(0,0,0,0.2); z-index: 300; transform: translateY(10px); opacity: 0; transition: opacity 0.25s, transform 0.25s; pointer-events: none; }
.toast.show { opacity: 1; transform: translateY(0); }

/* ================== スクロールバー ================== */
::-webkit-scrollbar       { width: 5px; height: 5px; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ================== モバイルオーバーレイ ================== */
.sidebar-overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.45);
  z-index: 99;
}
.sidebar-overlay.active { display: block; }

/* ================== レスポンシブ ================== */
@media (max-width: 640px) {
  :root { --sidebar-w: 240px; }

  /* サイドバー：常時非表示、mobile-open で重ねて表示 */
  .sidebar {
    transform: translateX(calc(-1 * var(--sidebar-w)));
    z-index: 100;
  }
  .sidebar.mobile-open { transform: translateX(0); }

  /* メイン：余白なし */
  .main { margin-left: 0; }
  .sidebar-open-btn { display: flex; }

  /* チャットコンテナ：上部に開くボタン分のパディング */
  .chat-container { padding: 0 10px; }
  .messages { padding: 56px 0 6px; gap: 14px; }

  /* バブル・カード */
  .bubble, .clarify-card, .error-bubble { max-width: 88%; }

  /* ウェルカム */
  .welcome { padding: 60px 12px 20px; }
  .welcome-icon { font-size: 36px; }
  .welcome h2 { font-size: 17px; }

  /* お客様の声バナー */
  .voice-banner { flex-direction: column; gap: 6px; text-align: center; padding: 8px 10px; }

  /* 入力エリア */
  .input-area { padding: 6px 0 10px; }
  .input-container { padding: 8px 10px; gap: 8px; }
  .question-input { font-size: 16px; } /* iOS ズーム防止 */
  .send-btn { width: 34px; height: 34px; font-size: 15px; }

  /* 追加質問 */
  .clarify-free-input { flex-wrap: wrap; }
  .clarify-text-input { min-width: 0; }

  /* 履歴 */
  .history-container { padding: 56px 10px 10px; }
  .history-card-header { flex-direction: column; gap: 4px; }
  .history-meta { align-self: flex-end; }

  /* フォーム */
  .form-row { grid-template-columns: 1fr; }

  /* モーダル */
  .modal { max-height: 92vh; }
  .modal-overlay { padding: 10px; }

  /* トースト */
  .toast { bottom: 16px; right: 12px; left: 12px; text-align: center; }
}