:root {
    --primary: #1f5f4a;
    --primary-dark: #13392c;
    --primary-soft: #e8f0ec;
    --accent: #c9893d;
    --accent-soft: #f9efdf;
    --warn: #c4622d;
    --bg: #faf8f3;
    --bg-soft: #f3efe6;
    --card: #ffffff;
    --text: #1a1f1c;
    --muted: #6b7269;
    --border: #e5e1d6;
    --border-soft: #f0ece0;
    --success: #1f5f4a;
    --danger: #b83535;
    --info: #2a5f8a;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow-sm: 0 1px 2px rgba(19, 57, 44, 0.04), 0 1px 3px rgba(19, 57, 44, 0.03);
    --shadow-md: 0 4px 12px rgba(19, 57, 44, 0.06), 0 1px 3px rgba(19, 57, 44, 0.04);
    --shadow-lg: 0 10px 28px rgba(19, 57, 44, 0.10);
    --transition: 180ms cubic-bezier(.4, 0, .2, 1);
  }

  * { box-sizing: border-box; }
  html, body {
    margin: 0; padding: 0;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Meiryo", sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14.5px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: 0.003em;
  }
  a { color: var(--info); text-decoration: none; }
  a:hover { text-decoration: underline; }

  /* ============ トップバー ============ */
  .topbar {
    position: sticky; top: 0; z-index: 100;
    background: linear-gradient(135deg, #13392c 0%, #1f5f4a 55%, #267357 100%);
    color: white;
    padding: 14px 24px;
    display: flex; align-items: center; justify-content: space-between;
    box-shadow: 0 1px 0 rgba(255,255,255,0.05) inset, 0 2px 14px rgba(19, 57, 44, 0.18);
  }
  .topbar h1 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.02em;
  }
  .topbar .user {
    font-size: 12px;
    color: rgba(255,255,255,0.75);
    letter-spacing: 0.01em;
  }

  /* ============ ナビ ============ */
  .nav {
    display: flex;
    overflow-x: auto;
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 52px; z-index: 99;
    padding: 0 12px;
    scrollbar-width: thin;
  }
  .nav::-webkit-scrollbar { height: 0; }
  .nav button {
    flex: 1; min-width: 98px;
    padding: 16px 10px 14px;
    background: transparent;
    border: none;
    font-size: 13.5px;
    color: var(--muted);
    cursor: pointer;
    white-space: nowrap;
    font-family: inherit;
    font-weight: 500;
    letter-spacing: 0.02em;
    position: relative;
    transition: color var(--transition);
  }
  .nav button::after {
    content: '';
    position: absolute;
    left: 50%; bottom: 0;
    width: 0; height: 2px;
    background: var(--primary);
    transition: width var(--transition), left var(--transition);
    border-radius: 2px;
  }
  .nav button:hover { color: var(--primary); }
  .nav button.active {
    color: var(--primary);
    font-weight: 600;
  }
  .nav button.active::after {
    width: 28px;
    left: calc(50% - 14px);
  }

  /* ============ メイン ============ */
  main {
    padding: 28px 24px;
    max-width: 1280px;
    margin: 0 auto;
  }
  .page { display: none; animation: fadeIn 240ms ease-out; }
  .page.active { display: block; }
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  h2 {
    font-size: 19px;
    margin: 8px 0 16px;
    color: var(--primary-dark);
    font-weight: 600;
    letter-spacing: -0.01em;
  }
  h3 {
    font-size: 14px;
    margin: 20px 0 10px;
    color: var(--text);
    font-weight: 600;
    letter-spacing: 0.01em;
  }

  /* ============ カード ============ */
  .card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 14px;
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition);
  }
  .card:hover { box-shadow: var(--shadow-md); }
  .card-title {
    font-weight: 600;
    margin-bottom: 14px;
    font-size: 14px;
    color: var(--primary-dark);
    letter-spacing: 0.01em;
    display: flex; justify-content: space-between; align-items: center;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-soft);
  }

  /* ============ サマリタイル ============ */
  .summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
  }
  .summary .tile {
    background: var(--card);
    border-radius: var(--radius);
    padding: 18px 16px 16px;
    text-align: left;
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
  }
  .summary .tile::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary) 0%, var(--accent) 100%);
    opacity: 0.9;
  }
  .summary .tile:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }
  .summary .tile .label {
    font-size: 11.5px;
    color: var(--muted);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }
  .summary .tile .value {
    font-size: 30px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-top: 4px;
    letter-spacing: -0.02em;
    line-height: 1.1;
  }
  .summary .tile .sub {
    font-size: 11px;
    color: var(--muted);
    margin-top: 4px;
  }

  /* ============ 予約カード ============ */
  .res {
    display: grid;
    grid-template-columns: 90px 1fr auto;
    gap: 14px;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: var(--card);
    border: 1px solid var(--border-soft);
    border-left: 3px solid var(--primary);
    margin-bottom: 8px;
    cursor: pointer;
    transition: all var(--transition);
  }
  .res:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
    transform: translateX(2px);
  }
  .res.cancelled {
    opacity: 0.55;
    border-left-color: #aaa;
    background: #f6f5f2;
  }
  .res.warn {
    border-left-color: var(--warn);
    background: var(--accent-soft);
  }
  .res .room {
    font-weight: 700;
    color: var(--primary-dark);
    font-size: 13px;
    letter-spacing: 0.02em;
    align-self: center;
  }
  .res .name {
    font-weight: 600;
    font-size: 15px;
    color: var(--text);
  }
  .res .meta {
    font-size: 12px;
    color: var(--muted);
    margin-top: 3px;
  }
  .res .badges {
    display: flex; gap: 5px; flex-wrap: wrap; margin-top: 6px;
  }
  .badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    border-radius: 999px;
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: 0.02em;
    line-height: 1.4;
  }
  .badge.route    { background: #e5eef2; color: #2a5f8a; }
  .badge.tour     { background: var(--accent-soft); color: #8e5a15; }
  .badge.breakfast{ background: #edf3e2; color: #4a6a1f; }
  .badge.prepaid  { background: #ece4f3; color: #5a2d80; }
  .badge.onsite   { background: #f9e8db; color: #9a4a15; }
  .badge.cancel   { background: #f6e0e0; color: #962d2d; }
  .badge.changed  { background: #fbf1d0; color: #7d5910; }
  .badge.request  { background: #fce5cd; color: #b45f06; border: 1px solid #f4b26a; }
  .badge.group    { background: #ead1dc; color: #741b47; border: 1px solid #c27ba0; }
  .res .route {
    font-size: 11px;
    color: var(--muted);
    text-align: right;
    align-self: center;
  }

  /* ============ タスクリスト ============ */
  .task-list { list-style: none; padding: 0; margin: 0; }
  .task-list li {
    padding: 12px 14px;
    background: var(--card);
    border-radius: var(--radius-sm);
    margin-bottom: 7px;
    display: flex; gap: 10px; align-items: center;
    border: 1px solid var(--border-soft);
    border-left: 3px solid var(--accent);
    transition: all var(--transition);
  }
  .task-list li:hover { border-color: var(--accent); }
  .task-list input[type="checkbox"] {
    width: 18px; height: 18px; cursor: pointer;
    accent-color: var(--primary);
  }
  .task-list li.done {
    opacity: 0.45;
    text-decoration: line-through;
    background: var(--bg-soft);
  }

  /* ============ カレンダー ============ */
  .cal-controls {
    display: flex; gap: 10px; margin-bottom: 14px;
    flex-wrap: wrap; align-items: center;
  }
  .cal-table {
    width: 100%; border-collapse: separate; border-spacing: 0;
    font-size: 12.5px;
    background: var(--card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm);
  }
  .cal-table th, .cal-table td {
    border-bottom: 1px solid var(--border-soft);
    border-right: 1px solid var(--border-soft);
    padding: 7px 5px;
    text-align: center;
    vertical-align: middle;
  }
  .cal-table th:last-child, .cal-table td:last-child { border-right: none; }
  .cal-table tr:last-child td { border-bottom: none; }
  .cal-table th {
    background: var(--bg-soft);
    font-weight: 600;
    font-size: 11.5px;
    color: var(--primary-dark);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    position: sticky; top: 0;
  }
  .cal-table td.date {
    font-weight: 600;
    width: 92px;
    text-align: left;
    padding-left: 12px;
    background: var(--bg-soft);
  }
  /* ===== 転置版カレンダー(部屋=行 / 日付=列) ===== */
  .cal-table.cal-transposed th.cal-corner {
    background: var(--bg-soft);
    width: 96px;
    min-width: 96px;
    color: #888;
    font-size: 11px;
    font-weight: 600;
  }
  .cal-table.cal-transposed th.date-th {
    min-width: 110px;
    padding: 6px 4px;
    line-height: 1.3;
  }
  .cal-table.cal-transposed th.date-th .d-mmdd {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0;
  }
  .cal-table.cal-transposed th.date-th .d-dow {
    font-size: 10.5px;
    color: #888;
    font-weight: 500;
    text-transform: none;
    margin-top: 2px;
  }
  .cal-table.cal-transposed th.date-th.sun { background: #f7e8e6; color: #b04a1a; }
  .cal-table.cal-transposed th.date-th.sat { background: #edf2f6; color: #2c5d7d; }
  .cal-table.cal-transposed th.cal-room-label {
    background: var(--bg-soft);
    text-align: center;
    font-weight: 700;
    font-size: 12px;
    color: var(--primary-dark);
    letter-spacing: 0;
    text-transform: none;
    padding: 8px 6px;
    position: sticky; left: 0;
    z-index: 2;
    border-right: 2px solid var(--border-soft);
    min-width: 96px;
  }
  .cal-table.cal-transposed tr.summary-row {
    background: #fafbfd;
  }
  .cal-table.cal-transposed tr.summary-row th.cal-room-label {
    background: #f2f5fa;
    color: #555;
    font-size: 11.5px;
  }
  .cal-table.cal-transposed tr.summary-row td.occ-cell {
    font-weight: 600;
    color: #444;
    font-variant-numeric: tabular-nums;
  }
  .cal-table td.sat { background: #edf2f6; }
  .cal-table td.sun { background: #f7e8e6; }
  .cal-cell {
    min-height: 40px;
    padding: 6px 8px;
    border-radius: 6px;
    cursor: pointer;
    text-align: left;
    transition: transform var(--transition);
  }
  .cal-cell:hover { transform: scale(1.03); }
  .cal-cell.occupied {
    background: linear-gradient(135deg, #cfe4d7 0%, #b7dac4 100%);
    color: var(--primary-dark);
    font-weight: 500;
  }
  .cal-cell.arrival   { box-shadow: inset 4px 0 0 var(--accent); }
  .cal-cell.departure { box-shadow: inset -4px 0 0 var(--warn); }
  .cal-cell.arrival.departure {
    box-shadow: inset 4px 0 0 var(--accent), inset -4px 0 0 var(--warn);
  }
  .cal-cell .cname { font-size: 12px; }
  .cal-cell .ccount { font-size: 10px; color: #2e6b53; opacity: 0.85; }
  .cal-cell .ccount.req-tag { color: #b45f06; font-weight: 700; }

  /* リクエスト予約: 斜めストライプで視覚的に区別 */
  .cal-cell.request {
    background: repeating-linear-gradient(
      135deg,
      #fde4c4 0, #fde4c4 8px,
      #fbd2a0 8px, #fbd2a0 16px
    );
    color: #7a3e05;
  }
  .cal-cell.cancelled { opacity: 0.4; text-decoration: line-through; }

  /* ドラッグ中 */
  .cal-cell.dragging,
  .cal-unassigned.dragging { opacity: 0.4; cursor: grabbing; }
  .cal-cell[draggable="true"],
  .cal-unassigned[draggable="true"] { cursor: grab; }
  .cal-cell[draggable="true"]:active,
  .cal-unassigned[draggable="true"]:active { cursor: grabbing; }

  /* ドロップ先ハイライト */
  .cal-table td.drop-hover {
    background: #d9f0df !important;
    box-shadow: inset 0 0 0 2px var(--primary);
  }
  .cal-table td.loading-cell {
    background: #f3f3f3 !important;
    opacity: 0.7;
  }

  .cal-unassigned {
    background: var(--accent-soft);
    padding: 4px 8px; margin-top: 4px;
    border-radius: 6px; font-size: 11px;
    color: #8e5a15; cursor: pointer;
    border: 1px dashed var(--accent);
    transition: background var(--transition);
  }
  .cal-unassigned:hover { background: #f3dfc0; }

  /* カレンダー日付セルの未割当バッジ (詳細は上部パネルで確認) */
  .cal-un-count {
    display: inline-block;
    margin-top: 4px;
    padding: 2px 8px;
    background: var(--accent-soft);
    color: #8e5a15;
    border: 1px dashed var(--accent);
    border-radius: 10px;
    font-size: 10.5px;
    font-weight: 600;
  }

  /* ============ 未割当予約パネル (カレンダー上部) ============ */
  .unassigned-panel {
    background: var(--card);
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    padding: 12px 14px;
    margin-bottom: 14px;
    box-shadow: var(--shadow-sm);
  }
  .unassigned-panel .card-title {
    font-size: 13.5px;
    color: #8e5a15;
    margin-bottom: 8px;
  }
  .unassigned-panel .empty {
    color: #6c757d;
    font-size: 12.5px;
    padding: 6px 2px;
  }
  .unassigned-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .unassigned-card {
    background: var(--accent-soft);
    border: 1px dashed var(--accent);
    border-radius: 8px;
    padding: 8px 10px;
    min-width: 160px;
    max-width: 240px;
    cursor: grab;
    font-size: 12px;
    color: #6b3e0f;
    transition: all var(--transition);
    user-select: none;
  }
  .unassigned-card:hover {
    background: #f3dfc0;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    transform: translateY(-1px);
  }
  .unassigned-card:active { cursor: grabbing; }
  .unassigned-card.dragging { opacity: 0.4; }
  .unassigned-card.request {
    background: #fce5cd;
    border-color: #b45f06;
    color: #7a3e05;
  }
  .unassigned-card .un-name { font-weight: 700; font-size: 13px; margin-bottom: 2px; }
  .unassigned-card .un-meta { font-size: 11px; opacity: 0.85; }
  .unassigned-card .un-badge {
    display: inline-block;
    margin-top: 4px;
    padding: 1px 6px;
    background: #b45f06;
    color: white;
    border-radius: 8px;
    font-size: 10px;
    font-weight: 600;
  }

  /* ============ 一覧 ============ */
  .filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 10px; margin-bottom: 16px;
  }
  .list-table {
    width: 100%; border-collapse: separate; border-spacing: 0;
    background: var(--card); font-size: 13px;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
  }
  .list-table th, .list-table td {
    padding: 12px 10px;
    text-align: left;
    border-bottom: 1px solid var(--border-soft);
  }
  .list-table th {
    background: var(--bg-soft);
    font-weight: 600;
    font-size: 11.5px;
    color: var(--primary-dark);
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }
  .list-table tr { cursor: pointer; transition: background var(--transition); }
  .list-table tbody tr:hover { background: var(--primary-soft); }
  .list-table tr.cancelled { opacity: 0.5; }
  .list-table tr.request td:first-child { box-shadow: inset 3px 0 0 #f4b26a; }
  .list-table tr.request { background: #fff7e9; }
  .list-table tr.warn td:first-child { box-shadow: inset 3px 0 0 var(--warn); }
  .list-table tr:last-child td { border-bottom: none; }

  /* メール列: 長いメールは省略表示、ホバーで全文(title属性) */
  .list-table td.mail-cell {
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
  }
  .list-table td.mail-cell.mail-empty { color: var(--muted); font-style: italic; }

  /* ============ フォーム ============ */
  .form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
  }
  .field { display: flex; flex-direction: column; }
  .field label {
    font-size: 11.5px;
    color: var(--muted);
    margin-bottom: 6px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }
  .field label .required { color: var(--danger); margin-left: 3px; }
  .field input, .field select, .field textarea {
    padding: 11px 13px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14.5px;
    font-family: inherit;
    background: var(--card);
    color: var(--text);
    transition: border-color var(--transition), box-shadow var(--transition);
  }
  .field input:hover, .field select:hover, .field textarea:hover {
    border-color: #c8c1ad;
  }
  .field input:focus, .field select:focus, .field textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(31, 95, 74, 0.12);
  }
  .field .hint {
    font-size: 11px;
    color: var(--muted);
    margin-top: 4px;
  }
  .checkbox-field {
    display: flex; gap: 10px; align-items: center;
    padding: 12px 14px;
    background: var(--bg-soft);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-soft);
  }
  .checkbox-field input {
    width: 18px; height: 18px;
    accent-color: var(--primary);
  }

  /* ============ ボタン ============ */
  button.primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 22px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    letter-spacing: 0.02em;
    box-shadow: 0 1px 2px rgba(19,57,44,0.10), inset 0 1px 0 rgba(255,255,255,0.1);
    transition: all var(--transition);
  }
  button.primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 10px rgba(19,57,44,0.20);
    transform: translateY(-1px);
  }
  button.primary:active { transform: translateY(0); }
  button.primary:disabled {
    opacity: 0.5; cursor: not-allowed;
    transform: none; box-shadow: none;
  }
  button.secondary {
    background: var(--card);
    color: var(--primary);
    border: 1px solid var(--border);
    padding: 11px 18px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    letter-spacing: 0.02em;
    transition: all var(--transition);
  }
  button.secondary:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
  }
  button.danger {
    background: var(--danger);
    color: white;
    border: none;
    padding: 11px 18px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    letter-spacing: 0.02em;
    transition: all var(--transition);
  }
  button.danger:hover { background: #9c2a2a; }
  button.approve {
    background: #b45f06;
    color: white;
    border: none;
    padding: 11px 18px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    letter-spacing: 0.02em;
    transition: all var(--transition);
  }
  button.approve:hover { background: #8a4505; box-shadow: 0 4px 10px rgba(180,95,6,0.25); transform: translateY(-1px); }
  button.small { padding: 7px 12px; font-size: 12.5px; }
  button.mini {
    padding: 5px 10px;
    font-size: 12px;
    background: var(--card);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition);
  }
  button.mini:hover:not(:disabled) {
    border-color: var(--primary);
    background: var(--primary-soft);
  }
  button.mini:disabled { opacity: 0.4; cursor: not-allowed; }
  button.mini.danger {
    background: #fff;
    color: var(--danger);
    border-color: #e5b3b3;
    padding: 5px 10px;
  }
  button.mini.danger:hover:not(:disabled) {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
  }
  .button-row {
    display: flex; gap: 10px;
    margin-top: 16px;
    flex-wrap: wrap;
  }

  /* ============ 設定画面: 部屋マスター編集行 ============ */
  .room-edit-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 10px;
  }
  .room-edit-row {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-soft);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
  }
  .room-edit-row .room-edit-idx {
    width: 28px;
    text-align: right;
    color: #6c757d;
    font-size: 12px;
    font-weight: 600;
  }
  .room-edit-row input[type="text"] {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
    background: #fff;
  }
  .room-edit-row input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-soft);
  }

  /* ============ AI解析カード ============ */
  .ai-summary-card {
    background: linear-gradient(180deg, #f5f8ff 0%, #eef3fb 100%);
    border: 1px solid #c7d4ee;
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    margin-top: 14px;
  }
  .ai-summary-title {
    font-weight: 700;
    font-size: 13px;
    color: #2a4a7a;
    margin-bottom: 6px;
    letter-spacing: 0.02em;
  }
  .ai-summary-list {
    margin: 6px 0 0;
    padding-left: 22px;
    color: #1e2a3a;
    font-size: 13px;
    line-height: 1.55;
  }
  .ai-summary-list li { margin-bottom: 2px; }
  .ai-summary-list li:last-child { margin-bottom: 0; }

  /* ============ グループ予約カード(詳細モーダル内) ============ */
  .group-card {
    background: #fbf4f8;
    border: 1px solid #d9b5cb;
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    margin-top: 12px;
  }
  .group-sibling-table {
    width: 100%;
    margin-top: 6px;
    font-size: 12px;
    border-collapse: collapse;
  }
  .group-sibling-table th {
    background: #ead1dc;
    color: #4a1b34;
    padding: 6px 8px;
    text-align: left;
    font-weight: 600;
    font-size: 11.5px;
    border-bottom: 1px solid #c5849f;
  }
  .group-sibling-table td {
    padding: 6px 8px;
    border-bottom: 1px solid #ebd4e0;
    cursor: pointer;
  }
  .group-sibling-table tr:hover td { background: #f1dfe8; }
  .group-sibling-table tr.current td {
    background: #fff3d6;
    font-weight: 600;
    cursor: default;
  }
  .group-sibling-table tr.current:hover td { background: #fff3d6; }

  /* カレンダーのグループセル強調 */
  .cal-cell.grouped {
    box-shadow: inset 2px 0 0 #a66497;
  }
  .cal-cell .group-tag {
    background: #ead1dc;
    color: #741b47;
    border-radius: 8px;
    padding: 0 4px;
    display: inline-block;
    font-size: 10px;
    font-weight: 600;
  }
  .unassigned-card .un-badge.group {
    background: #a66497;
  }

  /* ============ オプションタグ(🎁🍳📝) ============ */
  .cal-cell .ccount.opt-tag {
    font-size: 10px;
    font-weight: 600;
    color: #7a4b1d;
    background: #fff1d6;
    border-radius: 8px;
    padding: 1px 5px;
    display: inline-block;
    margin-top: 2px;
    letter-spacing: 0.02em;
  }

  /* ============ 朝食列(右側)編集対応 ============ */
  .cal-table td.bf-cell {
    cursor: pointer;
    user-select: none;
    transition: background 120ms ease;
    text-align: center;
    font-variant-numeric: tabular-nums;
  }
  .cal-table td.bf-cell:hover {
    background: #fff7e6;
  }
  .bf-text {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 6px;
  }
  .bf-text.bf-override {
    background: #ffe599;
    color: #7a5900;
    font-weight: 700;
    box-shadow: inset 0 0 0 1px #f1c232;
  }
  .bf-text.bf-override::after {
    content: ' *';
    color: #b45f06;
  }
  .bf-text.bf-empty {
    color: #bbb;
  }

  /* ============ 宿泊税列(右側) ============ */
  .cal-table td.tax-cell {
    text-align: right;
    font-variant-numeric: tabular-nums;
    padding-right: 8px;
    min-width: 88px;
    background: #fafbff;
  }
  .tax-amount {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 6px;
    background: #e3f2fd;
    color: #0d47a1;
    font-weight: 600;
    font-size: 12px;
  }
  .tax-empty {
    color: #ccc;
    font-size: 12px;
  }

  /* ============ リピーター(過去ご利用あり) ============ */
  .cal-cell.repeater {
    border-left-width: 4px;
    border-left-style: solid;
  }
  .cal-cell.repeater-r1 {
    border-left-color: #4caf50;          /* 緑: 2回目 */
  }
  .cal-cell.repeater-r2 {
    border-left-color: #ffa726;          /* 橙: 3回目 */
  }
  .cal-cell.repeater-r3 {
    border-left-color: #d4a017;          /* 金: 4回目以上(常連) */
    box-shadow: inset 0 0 0 1px #f0d27a;
    background: linear-gradient(180deg, #fffbe7 0%, #fff 100%);
  }
  .cal-cell .ccount.repeater-tag {
    font-size: 10px;
    font-weight: 700;
    border-radius: 8px;
    padding: 1px 5px;
    display: inline-block;
    margin-top: 2px;
    letter-spacing: 0.02em;
    color: #2e7d32;
    background: #e8f5e9;
    border: 1px solid #b2dfb5;
  }
  .cal-cell.repeater-r2 .ccount.repeater-tag {
    color: #b76900;
    background: #fff3e0;
    border-color: #ffcc80;
  }
  .cal-cell.repeater-r3 .ccount.repeater-tag {
    color: #8b6914;
    background: #fff8db;
    border-color: #f0d27a;
  }

  /* ============ ツアーバッジ(無料ツアー希望) ============ */
  .cal-cell .ccount.tour-tag {
    font-size: 10px;
    font-weight: 700;
    color: #1b5e20;
    background: #e8f5e9;
    border: 1px solid #a5d6a7;
    border-radius: 8px;
    padding: 1px 5px;
    display: inline-block;
    margin-top: 2px;
    letter-spacing: 0.02em;
  }

  /* ============ 朝食バッジ(その日に朝食提供がある時のみ・人数付き) ============ */
  .cal-cell .ccount.bf-tag {
    font-size: 10px;
    font-weight: 700;
    color: #6a4612;
    background: #fff7e0;
    border: 1px solid #f1d28a;
    border-radius: 8px;
    padding: 1px 5px;
    display: inline-block;
    margin-top: 2px;
    letter-spacing: 0.02em;
  }

  /* ============ BBQ バッジ(各部屋セル内・チェックイン日のみ表示) ============ */
  .cal-cell .ccount.bbq-tag {
    font-size: 10px;
    font-weight: 700;
    color: #8a2c0a;
    background: #ffe3d6;
    border: 1px solid #f5b29a;
    border-radius: 8px;
    padding: 1px 5px;
    display: inline-block;
    margin-top: 2px;
    letter-spacing: 0.02em;
  }

  /* ============ カレンダー読込中オーバーレイ(再フェッチ時にテーブル維持) ============ */
  .cal-area { position: relative; }
  .cal-area.cal-overlay::after {
    content: '読込中…';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.55);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 80px;
    color: #555;
    font-size: 13px;
    font-weight: 600;
    pointer-events: auto;
    z-index: 10;
    backdrop-filter: blur(1px);
  }
  .cal-area.cal-overlay { pointer-events: none; }
  .cal-status {
    margin-left: 8px;
    font-size: 11px;
    color: #888;
    transition: color 200ms;
  }
  .cal-status.busy { color: #1976d2; font-weight: 600; }

  /* ============ 仮想化用: pending(未描画)行は高さだけ確保 ============ */
  .cal-table tr.cal-row.pending {
    height: 64px;
  }
  .cal-table tr.cal-row.pending td.cal-placeholder {
    background: repeating-linear-gradient(
      45deg,
      #fafafa,
      #fafafa 6px,
      #f3f3f3 6px,
      #f3f3f3 12px
    );
    color: transparent;
    border-bottom: 1px solid #eee;
  }

  /* ============ オプション内訳テーブル(詳細モーダル内) ============ */
  .opt-breakdown-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 8px;
    font-size: 13px;
  }
  .opt-breakdown-table th,
  .opt-breakdown-table td {
    border: 1px solid #d9c79a;
    padding: 4px 8px;
    text-align: right;
  }
  .opt-breakdown-table th {
    background: #f6ecc9;
    font-weight: 600;
    text-align: center;
  }
  .opt-breakdown-table td:first-child {
    text-align: left;
  }

  /* ============ 宿泊税 月次レポートパネル(集計ページ内) ============ */
  .tax-report-card {
    border-left: 4px solid #1565c0;
    background: linear-gradient(180deg, #f5faff 0%, #ffffff 100%);
  }
  .tax-report-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 10px;
    margin: 8px 0 4px;
  }
  .tax-report-controls input[type="number"] {
    width: 90px;
  }
  .tax-report-result {
    margin-top: 10px;
  }
  .tax-summary-box {
    border: 1px solid #90caf9;
    background: #fff;
    border-radius: 8px;
    padding: 12px 14px;
    display: inline-block;
    min-width: 320px;
  }
  .tax-summary-title {
    font-weight: 700;
    color: #0d47a1;
    margin-bottom: 8px;
    border-bottom: 1px dashed #90caf9;
    padding-bottom: 4px;
  }
  .tax-summary-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 3px 0;
    font-size: 14px;
  }
  .tax-summary-row .k {
    color: #555;
  }
  .tax-summary-row .v {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
  }
  .tax-summary-row:last-child {
    border-top: 1px solid #90caf9;
    margin-top: 4px;
    padding-top: 6px;
  }
  .tax-summary-row:last-child .v {
    color: #a00;
    font-size: 16px;
  }

  /* ============ モーダル ============ */
  .modal-bg {
    display: none;
    position: fixed; inset: 0;
    background: rgba(19, 57, 44, 0.38);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 200;
    align-items: center; justify-content: center;
    padding: 20px;
  }
  .modal-bg.show {
    display: flex;
    animation: fadeIn 200ms ease-out;
  }
  .modal {
    background: var(--card);
    border-radius: var(--radius);
    padding: 28px;
    max-width: 640px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-soft);
    animation: slideUp 260ms cubic-bezier(.4,0,.2,1);
  }
  @keyframes slideUp {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
  }
  .modal h3 {
    margin-top: 0;
    font-size: 17px;
    color: var(--primary-dark);
    display: flex; justify-content: space-between; align-items: center;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-soft);
  }
  .modal .close {
    background: transparent; border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--muted);
    width: 32px; height: 32px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition);
  }
  .modal .close:hover { background: var(--bg-soft); color: var(--text); }
  .detail-grid {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 8px 16px;
    font-size: 13.5px;
    margin-bottom: 16px;
  }
  .detail-grid .k {
    color: var(--muted);
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    align-self: center;
  }

  /* ============ ダッシュボード ============ */
  .chart-wrap {
    background: var(--card);
    padding: 20px;
    border-radius: var(--radius);
    margin-bottom: 14px;
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm);
  }
  .chart-wrap canvas { max-height: 280px; }

  /* ============ ユーティリティ ============ */
  .empty {
    color: var(--muted);
    text-align: center;
    padding: 28px 20px;
    font-size: 13px;
    background: var(--bg-soft);
    border-radius: var(--radius-sm);
    border: 1px dashed var(--border);
  }
  .loading {
    color: var(--muted);
    text-align: center;
    padding: 28px 20px;
    font-size: 13.5px;
  }
  .loading::after { content: '...'; animation: dots 1.5s steps(4) infinite; }
  @keyframes dots { 0%{content:'.'} 33%{content:'..'} 66%{content:'...'} }

  .alert-ok, .alert-err, .alert-info, .alert-warn {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 14px;
    font-size: 13.5px;
    border-left: 3px solid;
  }
  .alert-ok {
    background: var(--primary-soft);
    color: var(--primary-dark);
    border-left-color: var(--success);
  }
  .alert-err {
    background: #f6e0e0;
    color: #8a2a2a;
    border-left-color: var(--danger);
  }
  .alert-info {
    background: #e5eef2;
    color: #1e466b;
    border-left-color: var(--info);
  }
  .alert-warn {
    background: #fbf3e0;
    color: #7a5a10;
    border-left-color: #f4b26a;
  }

  /* ============ スクロールバー ============ */
  ::-webkit-scrollbar { width: 10px; height: 10px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb {
    background: #d8d2c0;
    border-radius: 10px;
    border: 2px solid var(--bg);
  }
  ::-webkit-scrollbar-thumb:hover { background: #c0b89e; }

  /* ============ スマホ ============ */
  @media (max-width: 640px) {
    main { padding: 16px 12px; }
    .topbar { padding: 12px 16px; }
    .topbar h1 { font-size: 15px; }
    .nav { padding: 0 4px; }
    .nav button { min-width: 84px; font-size: 12.5px; padding: 14px 6px; }
    .res { grid-template-columns: 60px 1fr; padding: 12px; }
    .res .route { grid-column: 1 / -1; text-align: left; font-size: 11px; }
    h2 { font-size: 17px; }
    .modal { padding: 20px; }
    .summary .tile .value { font-size: 24px; }
    .detail-grid { grid-template-columns: 90px 1fr; }
  }