:root{
    --ink:#16262E;
    --ink-soft:#4C6470;
    --paper:#EAF4FA;
    --panel:#FFFFFF;
    --line:#C9E2EE;
    --primary:#2A7DA8;
    --primary-dark:#154A66;
    --accent:#1FA7C9;
    --today-accent:#2E9E4B;
    --today-bg:#DCF2E1;
    --sun-bg:#FBD2E4;
    --sat-bg:#DCEEF9;
    --holiday-bg:#FCF0B8;
    --warn:#C0392B;
    --warn-bg:#FBE3DF;
    --good:#3E7C59;
    --good-bg:#E4EFE8;
    --radius:6px;
  }
  *{box-sizing:border-box;}
  html,body{margin:0;padding:0;touch-action:manipulation;-webkit-text-size-adjust:100%;text-size-adjust:100%;}
  body{
    font-family:'IBM Plex Sans JP', -apple-system, 'Hiragino Sans', 'Yu Gothic', sans-serif;
    background:var(--paper);
    color:var(--ink);
    -webkit-font-smoothing:antialiased;
  }
  button{font-family:inherit;}
  .app{display:flex;min-height:100vh;}

  /* Sidebar */
  .sidebar{
    width:200px;flex-shrink:0;background:var(--primary-dark);color:#EDEFEA;
    display:flex;flex-direction:column;padding:19px 0;
  }
  .sidebar .brand{
    padding:0 15px 15px 15px;font-size:15px;font-weight:700;
    border-bottom:1px solid rgba(255,255,255,0.14);margin-bottom:10px;
  }
  .sidebar .brand small{display:block;font-weight:400;font-size:10.5px;color:rgba(237,239,234,0.6);margin-top:4px;}
  .nav-item{
    display:flex;align-items:center;gap:9px;padding:9px 15px;font-size:12px;font-weight:500;
    color:rgba(237,239,234,0.78);cursor:pointer;border-left:3px solid transparent;
  }
  .nav-item:hover{background:rgba(255,255,255,0.06);color:#fff;}
  .nav-item.active{background:rgba(255,255,255,0.1);color:#fff;border-left-color:var(--accent);}
  .nav-item .dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.55;}

  /* Main */
  .main{flex:1;min-width:0;padding:20px 24px 51px 24px;}
  .page-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:18px;flex-wrap:wrap;gap:10px;}
  .page-head h1{font-size:19px;margin:0 0 3px 0;font-weight:700;}
  .page-head .sub{font-size:11.5px;color:var(--ink-soft);}
  .toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
  .week-nav{display:flex;align-items:center;gap:8px;}
  .week-nav button{
    background:var(--panel);border:1px solid var(--line);border-radius:4px;
    width:28px;height:28px;cursor:pointer;font-size:12.5px;color:var(--ink);
  }
  .today-chip{
    background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
    padding:6px 12px;font-size:12px;font-weight:600;min-width:110px;text-align:center;
  }
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:7px 12px;
    border-radius:4px;border:1px solid transparent;font-size:11.5px;font-weight:600;cursor:pointer;
  }
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:var(--primary-dark);}
  .btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
  .btn-ghost:hover{background:var(--paper);}
  .btn-danger-outline{background:transparent;border-color:var(--warn);color:var(--warn);}
  .btn-danger-outline:hover{background:var(--warn-bg);}
  .btn-sm{padding:4px 8px;font-size:11px;}

  .section{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:18px;}
  .section-head{display:flex;justify-content:space-between;align-items:center;padding:12px 15px;border-bottom:1px solid var(--line);}
  .section-head h2{font-size:13px;margin:0;font-weight:600;}
  .section-body{padding:14px 15px;}
  .empty{padding:22px 8px;text-align:center;color:var(--ink-soft);font-size:11.5px;}
  .hint{font-size:11px;color:var(--ink-soft);margin-bottom:10px;}

  /* Legend */
  .legend{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:12px;}
  .legend-item{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--ink-soft);}
  .legend-swatch{width:12px;height:12px;border-radius:3px;display:inline-block;}

  /* Gantt calendar */
  .gantt-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);}
  /* 工程表: 縦スクロールで前後の月に移動できるよう、専用の高さ制限付きスクロール領域にする */
  .gantt-scroll.month-scroll{max-height:72vh;overflow-y:auto;}
  .month-divider{
    position:sticky;top:0;z-index:5;background:var(--primary-dark);color:#fff;
    font-size:11px;font-weight:700;padding:6px 12px;
  }
  .week-block{margin-bottom:2px;scroll-margin-top:40px;}
  .week-block:last-child{margin-bottom:0;}
  .gantt-bg-cell{scroll-margin-top:40px;}
  /* 前後月の日付は文字色のみを薄くし、枠線自体は透過させない(罫線のズレて見える原因になるため) */
  .daycell.dim .num{color:var(--ink-soft);opacity:.55;}
  .daycell.dim .wd{opacity:.55;}
  .gantt{position:relative;min-width:max-content;}
  .gantt-header{display:grid;position:sticky;top:0;z-index:3;background:var(--panel);}
  .gantt-header .daycell{
    padding:5px 2px;text-align:center;font-size:10px;border-right:1px solid var(--line);
    border-bottom:2px solid var(--line);font-weight:600;color:var(--ink-soft);
  }
  .gantt-header .daycell .num{font-size:11.5px;font-weight:700;color:var(--ink);}
  .gantt-header .daycell .hname{font-size:9px;color:var(--warn);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;max-width:100%;}
  .gantt-header .daycell .wd{font-size:9px;font-weight:500;color:var(--ink-soft);}
  .gantt-header .daycell.sun{background:var(--sun-bg);}
  .gantt-header .daycell.sun .num, .gantt-header .daycell.sun .wd{color:#B23A6B;}
  .gantt-header .daycell.sat{background:var(--sat-bg);}
  .gantt-header .daycell.sat .num, .gantt-header .daycell.sat .wd{color:#2E6DA4;}
  .gantt-header .daycell.holiday{background:var(--holiday-bg);}
  .gantt-header .daycell.holiday .num, .gantt-header .daycell.holiday .wd{color:#B23A6B;}
  th.sun, td.sun{background:var(--sun-bg);color:#B23A6B;}
  th.sat, td.sat{background:var(--sat-bg);color:#2E6DA4;}
  th.holiday, td.holiday{background:var(--holiday-bg);color:#B23A6B;}
  .gantt-header .daycell.today{background:var(--today-bg);}
  .gantt-header .daycell.today .num{
    display:inline-flex;align-items:center;justify-content:center;
    min-width:20px;height:20px;padding:0 5px;border-radius:999px;
    background:var(--today-accent);color:#fff;
  }
  /* シフト表: 複数月を連続表示するため、各月の1日に区切り線を入れる */
  .gantt-header .daycell.month-start, .gantt-bg-cell.month-start{border-left:2px solid var(--primary-dark);}
  .gantt-header .daycell.month-start .num{font-size:10px;}

  /* 工程表: ヘッダーと本体を1つのグリッドにまとめ、罫線のずれを防ぐ */
  /* min-width:max-contentは列の中身(未完了バッジ等のテキスト量)によって週ごとに計算結果が変わってしまい、
     週によって列幅がずれる原因になる。そのため最小幅は内容に依存しないpx数値をJS側で指定する(renderWeekBlock参照)。 */
  .gantt-week{display:grid;position:relative;}
  .gantt-week > .daycell{
    padding:5px 2px;text-align:center;font-size:10px;border-right:1px solid var(--line);
    border-bottom:2px solid var(--line);font-weight:600;color:var(--ink-soft);
    position:sticky;top:0;z-index:3;background:var(--panel);
  }
  .gantt-week > .daycell .num{font-size:11.5px;font-weight:700;color:var(--ink);}
  .gantt-week > .daycell .hname{font-size:9px;color:var(--warn);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;max-width:100%;}
  .gantt-week > .daycell .wd{font-size:9px;font-weight:500;color:var(--ink-soft);}
  .gantt-week > .daycell.sun{background:var(--sun-bg);}
  .gantt-week > .daycell.sun .num, .gantt-week > .daycell.sun .wd{color:#B23A6B;}
  .gantt-week > .daycell.sat{background:var(--sat-bg);}
  .gantt-week > .daycell.sat .num, .gantt-week > .daycell.sat .wd{color:#2E6DA4;}
  .gantt-week > .daycell.holiday{background:var(--holiday-bg);}
  .gantt-week > .daycell.holiday .num, .gantt-week > .daycell.holiday .wd{color:#B23A6B;}
  .gantt-week > .daycell.today{background:var(--today-bg);}
  .gantt-week > .daycell.today .num{
    display:inline-flex;align-items:center;justify-content:center;
    min-width:20px;height:20px;padding:0 5px;border-radius:999px;
    background:var(--today-accent);color:#fff;
  }
  .gantt-week > .daycell[data-empty-cell]:hover{filter:brightness(0.93);}

  .gantt-body{display:grid;position:relative;}
  .gantt-bg-cell{
    border-right:1px solid var(--line);border-bottom:1px solid var(--line);
    min-height:30px;cursor:pointer;
  }
  .gantt-bg-cell:hover{background:rgba(46,71,86,0.06);}
  .gantt-bg-cell.sun{background:var(--sun-bg);}
  .gantt-bg-cell.sat{background:var(--sat-bg);}
  .gantt-bg-cell.holiday{background:var(--holiday-bg);}
  .gantt-bg-cell.today{background:var(--today-bg);}
  .gantt-bg-cell.dragover{outline:2px solid var(--primary);outline-offset:-2px;}
  .gantt-name-cell{
    background:#1B7FA6;color:#fff;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;text-align:center;padding:0 4px;font-weight:600;font-size:11px;
    position:sticky;left:0;z-index:3;white-space:normal;overflow-wrap:break-word;word-break:keep-all;line-height:1.25;
  }

  .event-bar{
    position:relative;margin:2px 3px;padding:3px 6px;border-radius:4px;font-size:10.5px;
    font-weight:600;color:#3A2E10;cursor:grab;overflow:hidden;white-space:nowrap;
    text-overflow:ellipsis;border:1px solid rgba(0,0,0,0.08);z-index:2;min-width:0;
  }
  .event-bar:active{cursor:grabbing;}
  .event-bar .proj{font-weight:400;opacity:.85;margin-left:4px;}
  .event-bar.conflict{box-shadow:0 0 0 2px var(--warn) inset;}
  .event-bar.conflict::after{content:'⚠';margin-left:4px;}
  /* 予定日が2週間以内に迫っているのに詳細が未入力の予定に付ける「未登録」マーク(衝突の赤とは区別できるようオレンジにする) */
  .event-bar.incomplete-soon{outline:2px dashed #E2703A;outline-offset:-2px;}
  .incomplete-flag{display:inline-block;background:#E2703A;color:#fff;border-radius:3px;padding:0 4px;margin-right:4px;font-size:9px;font-weight:700;vertical-align:1px;}
  /* 予定日を2日過ぎても色分けが「予定」のまま(完了になっていない)予定に付ける「未完了」マーク */
  .event-bar.overdue-incomplete{outline:2px solid var(--warn);outline-offset:-2px;}
  .overdue-flag{display:inline-block;background:var(--warn);color:#fff;border-radius:3px;padding:0 4px;margin-right:4px;font-size:9px;font-weight:700;vertical-align:1px;}
  /* シフト表: 日付の下に工事名・作業内容・車両・集合時間を1行ずつ表示する。
     文字数が多くて収まりきらない場合は「…」を付けずに折り返し、枠からはみ出す部分だけを切り取る(枠は超えない)。 */
  .event-bar.shift-bar{
    white-space:normal;overflow:hidden;text-overflow:clip;padding:3px 5px;
    display:flex;flex-direction:column;gap:1px;line-height:1.3;
  }
  .event-bar.shift-bar .line{
    overflow:hidden;white-space:normal;overflow-wrap:anywhere;word-break:break-word;text-overflow:clip;font-size:9.5px;font-weight:400;min-width:0;
  }
  .event-bar.shift-bar .line.line-proj{font-weight:700;font-size:10px;}

  /* Modal */
  .modal-backdrop{position:fixed;inset:0;background:rgba(28,35,33,0.45);display:flex;align-items:center;justify-content:center;z-index:100;padding:17px;}
  .modal{background:#fff;border-radius:var(--radius);width:560px;max-width:100%;max-height:90vh;overflow-y:auto;border:1px solid var(--line);}
  .modal-head{padding:14px 17px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;}
  .modal-head h3{margin:0;font-size:14px;}
  .modal-body{padding:15px 17px;}
  .modal-foot{padding:12px 17px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:10px;align-items:center;}
  /* 予定の登録・詳細画面(event-modal)は他のモーダルより一回り小さく表示する(全体を7割程度に縮小)。
     transformでの縮小はレイアウトの余白計算に影響しないため、中身のCSSを個別に調整する必要がない。 */
  .event-modal{transform:scale(0.85);transform-origin:center center;}

  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
  .form-grid.time-pair-grid > .field{min-width:0;}
  .form-grid.full{grid-template-columns:1fr;}
  .field{display:flex;flex-direction:column;gap:5px;margin-bottom:12px;}
  .field label{font-size:11px;font-weight:600;color:var(--ink-soft);}
  .req-mark{color:var(--warn);font-weight:700;margin-left:2px;}
  .field input, .field select, .field textarea{
    font-family:inherit;font-size:11.5px;padding:7px 8px;border:1px solid var(--line);
    border-radius:4px;background:#fff;color:var(--ink);
  }
  .field textarea{resize:vertical;min-height:52px;}
  .field input:focus, .field select:focus, .field textarea:focus{outline:2px solid var(--primary);outline-offset:1px;}
  .check-grid{display:flex;flex-wrap:wrap;gap:8px;border:1px solid var(--line);border-radius:4px;padding:7px;}
  .check-chip{display:flex;align-items:center;gap:5px;font-size:11px;background:var(--paper);padding:3px 7px;border-radius:20px;}
  .check-chip input{margin:0;}
  .warn-box{background:var(--warn-bg);color:var(--warn);border-radius:4px;padding:8px 9px;font-size:11px;margin-bottom:12px;font-weight:600;line-height:1.6;}

  /* Master admin */
  .tabbar{display:flex;gap:6px;margin-bottom:16px;border-bottom:1px solid var(--line);}
  .tabbtn{padding:8px 14px;font-size:11.5px;font-weight:600;color:var(--ink-soft);cursor:pointer;border-bottom:2px solid transparent;background:none;border-top:none;border-left:none;border-right:none;}
  .tabbtn.active{color:var(--primary);border-bottom-color:var(--primary);}
  .master-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--line);gap:10px;}
  .access-columns{display:flex;gap:32px;align-items:flex-start;}
  .access-col{flex:1;min-width:0;}
  @media (max-width:760px){ .access-columns{flex-direction:column;} }
  .master-row:last-child{border-bottom:none;}
  .master-name{font-weight:600;font-size:12px;}
  .master-sub{font-size:10.5px;color:var(--ink-soft);margin-top:2px;}
  .inline-form{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap;}
  .inline-form input{flex:1;min-width:120px;padding:7px 8px;border:1px solid var(--line);border-radius:4px;font-size:11.5px;}
  .color-row{display:flex;align-items:center;gap:10px;padding:7px 0;border-bottom:1px solid var(--line);}
  .color-row:last-child{border-bottom:none;}
  .color-row input[type=color]{width:34px;height:28px;border:1px solid var(--line);border-radius:4px;padding:0;cursor:pointer;}
  .color-row input[type=text]{flex:1;padding:6px 8px;border:1px solid var(--line);border-radius:4px;font-size:11.5px;}
  .master-edit-input{padding:6px 8px;border:1px solid var(--line);border-radius:4px;font-size:11.5px;}

  /* Simple table views */
  table{width:100%;border-collapse:collapse;font-size:11px;}
  th{text-align:left;font-weight:600;color:var(--ink-soft);font-size:10.5px;padding:6px 7px;border-bottom:1px solid var(--line);white-space:nowrap;}
  td{padding:7px 7px;border-bottom:1px solid var(--line);vertical-align:top;}
  tr:last-child td{border-bottom:none;}
  .badge{display:inline-block;padding:2px 7px;border-radius:20px;font-size:9.5px;font-weight:600;margin:1px 3px 1px 0;white-space:nowrap;}

  /* Login */
  .login-screen{
    min-height:100vh;display:flex;align-items:center;justify-content:center;
    background:var(--primary-dark);padding:17px;
  }
  .login-card{
    background:#fff;border-radius:8px;width:360px;max-width:100%;padding:24px 22px;
    box-shadow:0 10px 30px rgba(0,0,0,0.25);
  }
  .login-logo{display:block;width:56px;height:56px;margin:0 auto 10px auto;border-radius:10px;}
  .login-company{text-align:center;font-size:11.5px;font-weight:700;color:var(--ink-soft);margin-bottom:10px;}
  .login-card h1{font-size:16px;margin:0 0 4px 0;text-align:center;}
  .login-card .sub{font-size:11px;color:var(--ink-soft);margin-bottom:20px;text-align:center;}
  .login-tabs{display:flex;gap:6px;margin-bottom:18px;border-bottom:1px solid var(--line);}
  .login-tabs button{
    flex:1;padding:8px;font-size:11.5px;font-weight:600;background:none;border:none;
    color:var(--ink-soft);border-bottom:2px solid transparent;cursor:pointer;
  }
  .login-tabs button.active{color:var(--primary);border-bottom-color:var(--primary);}
  .login-error{background:var(--warn-bg);color:var(--warn);border-radius:4px;padding:7px 8px;font-size:11px;margin-bottom:12px;font-weight:600;}

  /* Topbar */
  .topbar{
    display:flex;justify-content:flex-end;align-items:center;gap:14px;
    padding:8px 20px;border-bottom:1px solid var(--line);background:var(--panel);
  }
  .role-chip{font-size:10.5px;font-weight:700;padding:3px 8px;border-radius:20px;background:var(--good-bg);color:var(--good);}
  .role-chip.admin{background:#EAD9C4;color:#8A5A21;}
  .user-name{font-size:11.5px;font-weight:600;}
  .bell-btn{position:relative;background:none;border:none;font-size:15.5px;cursor:pointer;color:var(--ink-soft);}
  .bell-badge{
    position:absolute;top:-4px;right:-6px;background:var(--warn);color:#fff;font-size:9px;
    font-weight:700;border-radius:20px;padding:1px 4px;min-width:15px;text-align:center;
  }
  .logout-link{font-size:11px;color:var(--ink-soft);cursor:pointer;text-decoration:underline;}
  .notif-panel{position:absolute;top:52px;right:24px;width:300px;max-height:360px;overflow-y:auto;background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:0 8px 24px rgba(0,0,0,0.18);z-index:60;}
  .notif-item{padding:8px 12px;border-bottom:1px solid var(--line);font-size:11px;}
  .notif-item:last-child{border-bottom:none;}
  .notif-item.unread{background:#FBF4E8;}
  .notif-item .t{font-size:9.5px;color:var(--ink-soft);margin-top:3px;}

  /* My page (staff mobile) */
  .my-section{margin-bottom:20px;}
  .my-section h2{font-size:13px;margin:0 0 10px 0;font-weight:700;color:var(--primary-dark);}
  .my-card{
    background:var(--panel);border:1px solid var(--line);border-left:5px solid var(--accent);
    border-radius:6px;padding:12px 14px;margin-bottom:12px;
  }
  .my-card .site{font-size:13.5px;font-weight:700;margin-bottom:6px;}
  .my-card .proj{font-size:11px;color:var(--ink-soft);margin-bottom:10px;}
  .my-card dl{display:grid;grid-template-columns:88px 1fr;gap:6px 10px;margin:0;font-size:11.5px;}
  .my-card dt{color:var(--ink-soft);font-size:11px;}
  .my-card dd{margin:0;}
  .my-memo{margin-top:12px;padding-top:10px;border-top:1px dashed var(--line);}
  .my-memo label{display:block;font-size:11px;color:var(--ink-soft);margin-bottom:5px;}
  .my-memo textarea{
    width:100%;min-height:60px;font-family:inherit;font-size:11.5px;padding:7px 8px;
    border:1px solid var(--line);border-radius:4px;resize:vertical;background:var(--paper);
  }
  .my-memo textarea:focus{outline:2px solid var(--primary);outline-offset:1px;}
  .my-empty{color:var(--ink-soft);font-size:11.5px;padding:14px 0;}
  .my-day-memo{
    margin-top:10px;background:var(--panel);border:1px solid var(--line);
    border-radius:6px;padding:10px 12px;
  }
  .my-day-memo label{display:block;font-size:11px;color:var(--ink-soft);margin-bottom:6px;}
  .my-day-memo textarea{
    width:100%;min-height:70px;font-family:inherit;font-size:11.5px;padding:7px 8px;
    border:1px solid var(--line);border-radius:4px;resize:vertical;background:var(--paper);
  }
  .my-day-memo textarea:focus{outline:2px solid var(--primary);outline-offset:1px;}
  .readonly-banner{background:var(--good-bg);color:var(--good);border-radius:4px;padding:7px 10px;font-size:11px;font-weight:600;margin-bottom:14px;}

  /* 契約内容(工種・数量・単価・金額) */
  .contract-table{width:100%;border-collapse:collapse;font-size:11px;}
  .contract-table th{text-align:left;padding:5px 5px;border-bottom:1px solid var(--line);color:var(--ink-soft);font-size:10.5px;}
  .contract-table td{padding:4px 5px;border-bottom:1px solid var(--line);}
  .contract-table input{width:100%;font-family:inherit;font-size:11px;padding:5px 6px;border:1px solid var(--line);border-radius:4px;background:#fff;color:var(--ink);}
  .contract-table tfoot td{border-top:2px solid var(--line);border-bottom:none;}
  .contract-amount{font-weight:600;white-space:nowrap;}

  /* 現場情報ハブ */
  .site-card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;}
  .site-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px;cursor:pointer;}
  .site-card:hover{border-color:var(--primary);}
  .site-card h3{margin:0 0 6px 0;font-size:13px;}
  .site-card .addr{font-size:11px;color:var(--ink-soft);margin-bottom:4px;}
  .site-card .cnt{font-size:10.5px;color:var(--ink-soft);}
  .site-detail-head{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .back-link{font-size:11px;color:var(--primary);cursor:pointer;text-decoration:underline;}
  .photo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;}
  .photo-grid .ph{position:relative;border-radius:6px;overflow:hidden;border:1px solid var(--line);background:#000;}
  .photo-grid .ph img{width:100%;height:120px;object-fit:cover;display:block;}
  .photo-grid .ph .ph-del{position:absolute;top:4px;right:4px;background:rgba(0,0,0,0.55);color:#fff;border:none;border-radius:50%;width:22px;height:22px;cursor:pointer;font-size:11px;}
  .photo-grid .ph .ph-meta{padding:3px 5px;font-size:9px;color:#fff;background:rgba(0,0,0,0.5);}
  .doc-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--line);font-size:11.5px;}
  .doc-row:last-child{border-bottom:none;}
  .doc-row a{color:var(--primary);text-decoration:none;font-weight:600;}
  .doc-row a:hover{text-decoration:underline;}
  .chat-list{display:flex;flex-direction:column;gap:10px;max-height:420px;overflow-y:auto;padding:3px 2px;margin-bottom:14px;}
  .chat-bubble{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:7px 10px;max-width:80%;}
  .chat-bubble.me{align-self:flex-end;background:#EAF1EE;border-color:var(--good);}
  .chat-bubble .who{font-size:10px;font-weight:700;color:var(--primary-dark);margin-bottom:2px;}
  .chat-bubble .msg{font-size:11.5px;white-space:pre-wrap;word-break:break-word;}
  .chat-bubble .t{font-size:9px;color:var(--ink-soft);margin-top:4px;}
  .chat-input-row{display:flex;gap:8px;}
  .chat-input-row textarea{flex:1;min-height:44px;font-family:inherit;font-size:11.5px;padding:7px 8px;border:1px solid var(--line);border-radius:4px;resize:vertical;}

  @media (max-width: 860px){
    .app{flex-direction:column;}
    .sidebar{width:100%;flex-direction:row;align-items:center;padding:8px;overflow-x:auto;}
    .sidebar .brand{display:none;}
    .nav-item{border-left:none;border-bottom:3px solid transparent;white-space:nowrap;padding:8px 12px;}
    .nav-item.active{border-bottom-color:var(--accent);}
    .main{padding:16px 12px 40px 12px;}
    .form-grid{grid-template-columns:1fr;}
    /* 開始時間・終了時間、集合時間・残業時間は狭い画面でも横並びのまま(きっちり半分ずつ)で表示する。
       min-width:0がないと、時間入力欄の内容幅が優先されて左右が均等に割れないことがあるため明示する。 */
    .form-grid.time-pair-grid{grid-template-columns:1fr 1fr;gap:8px;}
    .form-grid.time-pair-grid > .field{min-width:0;}
    .topbar{padding:8px 14px;}
    .notif-panel{right:14px;width:calc(100% - 28px);}
  }

  /* スマホ幅(640px以下)向けに、全体をひとまわりコンパクトに表示する */
  @media (max-width: 640px){
    body{font-size:13px;}
    .nav-item{font-size:12px;padding:7px 10px;gap:6px;}
    .main{padding:10px 8px 28px 8px;}
    .page-head{margin-bottom:12px;gap:6px;}
    .page-head h1{font-size:17px;}
    .page-head .sub{font-size:11.5px;}
    .toolbar{gap:6px;}
    .week-nav button{padding:5px 8px;font-size:12px;}
    .today-chip{padding:5px 9px;font-size:12px;}
    .btn{padding:7px 12px;font-size:12.5px;}
    .btn-sm{padding:4px 8px;font-size:11px;}
    .section{margin-bottom:12px;}
    .section-head{padding:10px 12px;}
    .section-head h2{font-size:13px;}
    .section-body{padding:10px 12px;}
    .legend{gap:8px;margin-bottom:8px;}
    .legend-item{font-size:11px;}
    .tabbar{gap:3px;margin-bottom:10px;overflow-x:auto;flex-wrap:nowrap;}
    .tabbtn{padding:7px 10px;font-size:12px;white-space:nowrap;}
    .master-row{padding:8px 0;gap:6px;}
    .master-name{font-size:12.5px;}
    .master-sub{font-size:11px;}
    .master-edit-input{padding:6px 7px;font-size:12px;}
    .inline-form{gap:6px;margin-top:8px;}
    .inline-form input{min-width:100px;padding:7px 8px;font-size:12px;}
    .modal-backdrop{padding:0;align-items:flex-end;}
    .modal{width:100%;max-height:94vh;border-radius:12px 12px 0 0;}
    .event-modal{transform-origin:bottom center;}
    .modal-head{padding:12px 14px;}
    .modal-head h3{font-size:14px;}
    .modal-body{padding:12px 14px;}
    .modal-foot{padding:10px 14px;flex-wrap:wrap;}
    .field{margin-bottom:9px;}
    .field label{font-size:11.5px;}
    /* iOSのSafariは、入力欄の文字サイズが16px未満だとタップ時に画面を自動で拡大してしまう。
       それが「タップするたびに画面がアップになる」現象の原因のため、スマホ幅では
       すべての入力欄・選択欄の文字サイズを16px以上にして自動拡大を防ぐ。 */
    .field input, .field select, .field textarea,
    .inline-form input,
    .master-edit-input,
    .color-row input[type=text],
    .contract-table input,
    .chat-input-row textarea,
    .my-memo textarea,
    .my-day-memo textarea,
    #login-staff-select,
    #login-form input{font-size:16px;}
    .field input, .field select, .field textarea{padding:7px 8px;}
    .check-grid{padding:6px;}
    .check-chip{font-size:11.5px;padding:3px 7px;}
    .topbar{padding:7px 10px;}
    .role-chip{font-size:10.5px;padding:2px 8px;}
    .user-name{font-size:12px;}
    .bell-btn{font-size:15px;}
    .logout-link{font-size:11px;}
    .notif-panel{top:48px;width:calc(100% - 16px);right:8px;}
    .notif-item{padding:8px 10px;font-size:11.5px;}
    .login-card{padding:26px 20px;}
    .login-logo{width:44px;height:44px;}
    .login-card h1{font-size:16px;}
    .login-card .sub{font-size:11.5px;margin-bottom:14px;}
    .login-company{font-size:12px;}
    .my-card{padding:12px;}
    .my-card .site{font-size:13.5px;}
    .my-card dl{grid-template-columns:70px 1fr;font-size:12px;}
    .site-card-grid{grid-template-columns:1fr;gap:10px;}
    .photo-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:8px;}
    .badge{font-size:8px;padding:1px 4px;}
    .gantt-header .daycell, .gantt-week > .daycell{padding:2px 1px;font-size:9px;}
    .gantt-header .daycell .num, .gantt-week > .daycell .num{font-size:9.5px;}
    .gantt-header .daycell .hname, .gantt-week > .daycell .hname,
    .gantt-header .daycell .wd, .gantt-week > .daycell .wd{font-size:7.5px;}
    .gantt-name-cell{padding:0 2px;font-size:9.5px;}
    .event-bar{padding:1px 3px;font-size:9px;line-height:1.2;margin:1px;}
    .event-bar.shift-bar{padding:2px 3px;gap:0;}
    .event-bar.shift-bar .line{font-size:8.5px;line-height:1.15;}
    .event-bar.shift-bar .line.line-proj{font-size:9px;}
    /* 工程表の「未登録」「未完了」マークは、狭い日付セルで折り返さずに済むよう文字を小さくする */
    .incomplete-flag, .overdue-flag{font-size:8px;padding:0 3px;margin-right:2px;}
    .chat-bubble{max-width:90%;padding:7px 10px;}
    .chat-bubble .msg{font-size:12px;}
  }

  /* ==== データ一括バックアップ(設定 > バックアップ。設定者専用の追加タブ。既存の見た目には影響しない) ==== */
  .bk-intro{font-size:11.5px;line-height:1.75;color:var(--ink-soft);margin-bottom:6px;}
  .bk-actions{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 14px;}
  .bk-log{background:var(--paper);border:1px solid var(--line);border-radius:4px;padding:8px 10px;font-size:11px;line-height:1.65;max-height:150px;overflow-y:auto;margin-bottom:12px;color:var(--ink-soft);}
  .bk-banner{border-radius:6px;padding:10px 12px;font-size:12.5px;font-weight:700;margin-bottom:12px;line-height:1.55;}
  .bk-banner.ok{background:var(--good-bg);color:var(--good);}
  .bk-banner.warn{background:#FCEBD9;color:#9A4A12;}
  .bk-banner.ng{background:var(--warn-bg);color:var(--warn);}
  .bk-sub{font-size:12px;font-weight:700;margin:14px 0 4px 0;color:var(--primary-dark);}
  .bk-table{width:100%;border-collapse:collapse;font-size:11.5px;margin-bottom:6px;}
  .bk-table td{padding:5px 7px;border-bottom:1px solid var(--line);}
  .bk-table td.num{text-align:right;font-weight:600;white-space:nowrap;}
  .bk-list{margin:4px 0 8px 0;padding-left:18px;font-size:11.5px;line-height:1.7;}
  .bk-list.ng li{color:var(--warn);}
  .bk-list.warn li{color:#9A4A12;}
  .bk-list.note li{color:var(--ink-soft);}
  .bk-check{display:flex;gap:8px;font-size:11.5px;line-height:1.6;padding:3px 0;border-bottom:1px solid var(--line);}
  .bk-check .mk{flex:0 0 auto;font-weight:700;width:2.2em;}
  .bk-check.ok .mk{color:var(--good);}
  .bk-check.ng .mk{color:var(--warn);}
  .bk-check .dt{color:var(--ink-soft);word-break:break-all;}