/* ===== ベーススタイル ===== */
  * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
  body {
    font-family: 'Noto Sans JP', sans-serif;
    background: #F0F4F8;
    color: #1A2332;
    min-height: 100vh;
    padding-bottom: 80px;
  }

  /* ===== カラーパレット (青緑系ビジネスUI) ===== */
  :root {
    --primary: #1E6FBF;
    --primary-dark: #155799;
    --primary-light: #E8F1FB;
    --accent-green: #0F9E6E;
    --accent-green-light: #E6F7F1;
    --accent-red: #D94B3A;
    --accent-red-light: #FDECEA;
    --accent-amber: #D97706;
    --accent-amber-light: #FEF3C7;
    --surface: #FFFFFF;
    --surface-2: #F8FAFC;
    --border: #DDE3EA;
    --text-muted: #6B7B8D;
    --mono: 'JetBrains Mono', monospace;
  }

  /* ===== タブナビゲーション ===== */
  .bottom-nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--surface);
    border-top: 1px solid var(--border);
    display: flex;
    z-index: 100;
    padding-bottom: env(safe-area-inset-bottom);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
  }
  .nav-item {
    flex: 1;
    display: flex; flex-direction: column; align-items: center;
    padding: 10px 4px 8px;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 10px;
    font-weight: 500;
    transition: color 0.2s;
    user-select: none;
    gap: 3px;
  }
  .nav-item.active { color: var(--primary); }
  .nav-item svg { width: 22px; height: 22px; stroke-width: 1.8; }

  /* ===== ページヘッダー ===== */
  .page-header {
    background: var(--primary);
    color: white;
    padding: 16px 16px 14px;
    position: sticky; top: 0; z-index: 50;
    box-shadow: 0 2px 12px rgba(30,111,191,0.2);
  }
  .page-header h1 { font-size: 17px; font-weight: 700; letter-spacing: 0.02em; }
  .page-header .subtitle { font-size: 11px; opacity: 0.8; margin-top: 1px; }

  /* ===== カード ===== */
  .card {
    background: var(--surface);
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
  }
  .card-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: var(--surface-2);
  }

  /* ===== 金額フォント ===== */
  .amount {
    font-family: var(--mono);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.01em;
  }
  .amount-lg {
    font-family: var(--mono);
    font-size: 22px;
    font-weight: 600;
  }
  .amount-sm {
    font-family: var(--mono);
    font-size: 12px;
  }
  .income { color: var(--accent-green); }
  .expense { color: var(--accent-red); }
  .balance { color: var(--primary); }
  .balance-negative { color: var(--accent-red); }

  /* ===== バッジ ===== */
  .badge {
    display: inline-flex; align-items: center;
    padding: 2px 8px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
  }
  .badge-blue { background: var(--primary-light); color: var(--primary); }
  .badge-green { background: var(--accent-green-light); color: var(--accent-green); }
  .badge-red { background: var(--accent-red-light); color: var(--accent-red); }
  .badge-amber { background: var(--accent-amber-light); color: var(--accent-amber); }
  .badge-gray { background: #EDF0F4; color: var(--text-muted); }

  /* ===== ボタン ===== */
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s;
    border: none;
    white-space: nowrap;
  }
  .btn-primary { background: var(--primary); color: white; }
  .btn-primary:hover { background: var(--primary-dark); }
  .btn-success { background: var(--accent-green); color: white; }
  .btn-danger { background: var(--accent-red); color: white; }
  .btn-outline { background: transparent; border: 1.5px solid var(--border); color: #374151; }
  .btn-outline:hover { background: var(--surface-2); }
  .btn-sm { padding: 6px 12px; font-size: 12px; border-radius: 6px; }
  .btn-xs { padding: 4px 8px; font-size: 11px; border-radius: 5px; }
  .btn-fab {
    position: fixed;
    bottom: 90px; right: 20px;
    width: 52px; height: 52px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 16px rgba(30,111,191,0.4);
    font-size: 24px;
    cursor: pointer;
    z-index: 90;
    border: none;
    transition: transform 0.15s;
  }
  .btn-fab:active { transform: scale(0.93); }

  /* ===== モーダル ===== */
  .modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 200;
    display: flex; align-items: flex-end;
    animation: fadeIn 0.2s;
  }
  .modal-overlay.center { align-items: center; }
  .modal-sheet {
    background: var(--surface);
    border-radius: 20px 20px 0 0;
    width: 100%;
    max-height: 92vh;
    overflow-y: auto;
    animation: slideUp 0.25s ease-out;
    padding-bottom: env(safe-area-inset-bottom);
  }
  .modal-dialog {
    background: var(--surface);
    border-radius: 16px;
    width: calc(100% - 32px);
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    margin: 0 auto;
    animation: scaleIn 0.2s ease-out;
  }
  .modal-handle {
    width: 36px; height: 4px;
    background: var(--border);
    border-radius: 2px;
    margin: 12px auto 0;
  }
  .modal-title {
    font-size: 17px; font-weight: 700;
    padding: 16px 20px 12px;
    border-bottom: 1px solid var(--border);
  }
  .modal-body { padding: 16px 20px; }
  .modal-footer {
    padding: 12px 20px 16px;
    border-top: 1px solid var(--border);
    display: flex; gap: 10px;
    background: var(--surface-2);
  }

  /* ===== フォーム ===== */
  .form-group { margin-bottom: 14px; }
  .form-label {
    display: block;
    font-size: 12px; font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  .form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    font-family: 'Noto Sans JP', sans-serif;
    background: white;
    color: var(--text);
    outline: none;
    transition: border-color 0.15s;
  }
  .form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30,111,191,0.1);
  }
  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

  /* ===== 日繰りテーブル ===== */
  .cashflow-table { width: 100%; border-collapse: collapse; }
  .cashflow-table th {
    background: #1A2D45;
    color: rgba(255,255,255,0.85);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 8px 10px;
    position: sticky;
    top: 0;
    white-space: nowrap;
    border-right: 1px solid rgba(255,255,255,0.1);
  }
  .cashflow-table th:last-child { border-right: none; }
  .cashflow-table td {
    padding: 8px 10px;
    font-size: 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
    white-space: nowrap;
  }
  .cashflow-table tr { cursor: pointer; transition: background 0.1s; }
  .cashflow-table tr:hover { background: var(--primary-light); }
  .cashflow-table .date-cell {
    font-weight: 600;
    font-size: 12px;
    color: #374151;
    background: var(--surface-2);
    border-right: 2px solid var(--border);
    min-width: 60px;
  }
  .cashflow-table .balance-row {
    background: #F0F4F8;
    font-weight: 600;
  }
  .cashflow-table .status-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 4px;
  }
  .row-confirmed { background: white; }
  .row-planned { background: #FAFBFF; }
  .row-cancelled { opacity: 0.4; text-decoration: line-through; }

  /* ===== モードセレクター ===== */
  .mode-selector {
    display: flex;
    background: #EDF0F4;
    border-radius: 8px;
    padding: 3px;
    gap: 2px;
  }
  .mode-btn {
    flex: 1;
    padding: 7px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    background: transparent;
    color: var(--text-muted);
    transition: all 0.15s;
  }
  .mode-btn.active {
    background: white;
    color: var(--primary);
    box-shadow: 0 1px 4px rgba(0,0,0,0.12);
  }

  /* ===== 月セレクター ===== */
  .month-tabs {
    display: flex;
    overflow-x: auto;
    gap: 6px;
    padding: 12px 16px;
    scrollbar-width: none;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
  }
  .month-tabs::-webkit-scrollbar { display: none; }
  .month-tab {
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: 1.5px solid var(--border);
    background: white;
    color: var(--text-muted);
    white-space: nowrap;
    transition: all 0.15s;
  }
  .month-tab.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
  }

  /* ===== サマリーカード ===== */
  .summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .summary-card {
    background: var(--surface);
    border-radius: 12px;
    padding: 14px;
    border: 1px solid var(--border);
  }
  .summary-card .label { font-size: 11px; color: var(--text-muted); font-weight: 500; }
  .summary-card .value { font-size: 18px; font-weight: 700; font-family: var(--mono); margin-top: 4px; }

  /* ===== アラートバナー ===== */
  .alert-banner {
    border-radius: 10px;
    padding: 12px 14px;
    font-size: 13px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
  }
  .alert-red { background: var(--accent-red-light); color: #9B1C1C; border: 1px solid #FCA5A5; }
  .alert-amber { background: var(--accent-amber-light); color: #78350F; border: 1px solid #FCD34D; }
  .alert-blue { background: var(--primary-light); color: #1E3A5F; border: 1px solid #93C5FD; }

  /* ===== アニメーション ===== */
  @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
  @keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
  @keyframes scaleIn { from { transform: scale(0.95); opacity: 0; } to { transform: scale(1); opacity: 1; } }
  .page { animation: fadeIn 0.2s; }
  .hidden { display: none !important; }

  /* ===== テーブルラッパー ===== */
  .table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* ===== セクション ===== */
  .section { padding: 14px 16px; }
  .section + .section { border-top: 1px solid var(--border); }

  /* ===== ローディング ===== */
  .loading-spinner {
    width: 32px; height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin: 40px auto;
  }
  @keyframes spin { to { transform: rotate(360deg); } }

  /* ===== スクロールバー ===== */
  ::-webkit-scrollbar { width: 4px; height: 4px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 2px; }

  /* ===== リスト行 ===== */
  .list-row {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.1s;
    display: flex;
    align-items: flex-start;
    gap: 12px;
  }
  .list-row:hover { background: var(--surface-2); }
  .list-row:last-child { border-bottom: none; }

  /* ===== PC向けレイアウト ===== */
  @media (min-width: 768px) {
    body { padding-bottom: 0; }
    .bottom-nav { display: none; }
    .side-nav {
      position: fixed;
      top: 0; left: 0; bottom: 0;
      width: 200px;
      background: #1A2D45;
      display: flex; flex-direction: column;
      padding: 20px 0;
      z-index: 100;
    }
    .side-nav-logo {
      color: white;
      font-size: 14px;
      font-weight: 700;
      padding: 0 20px 20px;
      border-bottom: 1px solid rgba(255,255,255,0.1);
      margin-bottom: 10px;
    }
    .side-nav-item {
      display: flex; align-items: center; gap: 10px;
      padding: 12px 20px;
      color: rgba(255,255,255,0.65);
      font-size: 13px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.15s;
    }
    .side-nav-item:hover { background: rgba(255,255,255,0.05); color: white; }
    .side-nav-item.active { background: rgba(255,255,255,0.1); color: white; }
    .side-nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
    .main-content { margin-left: 200px; }
    .page-header { padding: 14px 24px; }
    .btn-fab { bottom: 24px; right: 24px; }
    .summary-grid { grid-template-columns: repeat(4, 1fr); }
    .form-row-3 { grid-template-columns: 1fr 1fr 1fr; }
  }
  @media (max-width: 767px) {
    .side-nav { display: none; }
    .main-content { margin-left: 0; }
  }

  /* ===== フローティングインジケーター ===== */
  .toast {
    position: fixed;
    bottom: 100px; left: 50%;
    transform: translateX(-50%);
    background: #1A2D45;
    color: white;
    padding: 10px 20px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    z-index: 999;
    animation: toastIn 0.3s ease-out;
    white-space: nowrap;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  }
  @keyframes toastIn {
    from { opacity: 0; transform: translateX(-50%) translateY(10px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
  }

  /* ===== 詳細行ハイライト ===== */
  .detail-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
  }
  .detail-row:last-child { border-bottom: none; }
  .detail-label { font-size: 12px; color: var(--text-muted); font-weight: 500; }
  .detail-value { font-size: 14px; font-weight: 600; }

  /* ===== 差異表示 ===== */
  .diff-positive { color: var(--accent-green); }
  .diff-negative { color: var(--accent-red); }


/* ===== マスタ一覧 ===== */
.master-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-top: 1px solid var(--border);
}
.master-row-main { flex: 1; min-width: 0; }
.master-row-title {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 14px;
  font-weight: 700;
}
.master-row-sub {
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-muted);
}
.master-row-meta {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 7px;
  font-size: 11px;
  color: var(--text-muted);
}
.master-row-memo {
  margin-top: 7px;
  font-size: 12px;
  color: var(--text-muted);
}
.master-row-actions { display: flex; gap: 6px; flex-shrink: 0; }
.empty-master {
  padding: 18px 16px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
}
.form-help {
  margin-top: 5px;
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.5;
}
@media (max-width: 520px) {
  .master-row { flex-direction: column; }
  .master-row-actions { width: 100%; }
  .master-row-actions .btn { flex: 1; }
}

/* Local replacements for the former CDN reset and utilities. */
html {line-height:1.5;-webkit-text-size-adjust:100%} body,h1,h2,h3,p {margin:0} button,input,select,textarea {font:inherit;color:inherit} button {cursor:pointer;border:0;background:none} button:disabled{opacity:.55;cursor:wait} table {border-collapse:collapse} input,textarea,select{border:1px solid var(--border)} svg{display:block;vertical-align:middle} .hidden{display:none!important}.p-4{padding:16px}.m-4{margin:16px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.w-full{width:100%}.flex-1{flex:1}.space-y-4>:not([hidden])~:not([hidden]){margin-top:16px}.space-y-3>:not([hidden])~:not([hidden]){margin-top:12px}.login-panel{width:calc(100% - 32px);max-width:420px;margin:12vh auto}.login-panel .section{padding:24px}:focus-visible{outline:3px solid #68a5df;outline-offset:2px}