/* ── タブナビ ── */
#tab-nav {
  display: flex;
  gap: 4px;
  background: #F3F4F6;
  padding: 4px;
  border-radius: 10px;
  flex-shrink: 0;
}

.tab-btn {
  flex: 1;
  padding: 7px 8px;
  border: none;
  background: transparent;
  color: #6B7280;
  font-size: 13px;
  font-weight: 500;
  font-family: sans-serif;
  cursor: pointer;
  border-radius: 7px;
  transition: all 0.15s;
  white-space: nowrap;
  touch-action: manipulation;
}

.tab-btn.active {
  background: #FFFFFF;
  color: #111827;
  font-weight: 700;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

/* ── タブコンテンツ ── */
.tab-content {
  display: none;
  flex-direction: column;
  gap: 8px;
}

.tab-content.active {
  display: flex;
}

/* ════════════════════════════
   右パネル: 分析/比較タブナビ
   ════════════════════════════ */
#rp-tab-nav {
  display: none; /* モバイルでは非表示 */
  flex-shrink: 0;
}

.rp-tab-btn {
  flex: 1;
  padding: 7px 8px;
  border: none;
  background: transparent;
  color: #6B7280;
  font-size: 13px;
  font-weight: 500;
  font-family: sans-serif;
  cursor: pointer;
  border-radius: 7px;
  transition: all 0.15s;
  white-space: nowrap;
}

.rp-tab-btn.active {
  background: #FFFFFF;
  color: #111827;
  font-weight: 700;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

/* ── 右パネル: タブコンテンツ ── */
.rp-tab-content {
  display: none;
  flex-direction: column;
  gap: 12px;
}

.rp-tab-content.active {
  display: flex;
}

/* モバイル: 分析タブは常に表示 → responsive.css の @media (max-width: 767px) に記載 */