:root {
    --bg: #ffffff; --bg2: #F3F5FA; --bg3: #EAEEF6; --page-bg: #E7EAF2;
    --text: #1A1D29; --text2: #6B7280; --text3: #9CA3AF;
    --border: rgba(26,29,41,0.08); --border2: rgba(26,29,41,0.15);
    --red-bg: #FDECEC; --red: #D14343;
    --amber-bg: #FEF3DD; --amber: #C2870C;
    --green-bg: #E7F6ED; --green: #1F9D55;
    --accent: #2D6CDF; --accent-bg: #E8EFFC; --accent2: #5B8DEF;
    --ink: #1A1D29;
    --radius: 10px; --radius-lg: 14px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  }
  @media (prefers-color-scheme: dark) {
    :root {
      --bg: #14181F; --bg2: #1B212C; --bg3: #212834; --page-bg: #0D1015;
      --text: #EDEFF4; --text2: #98A0AE; --text3: #5F6877;
      --border: rgba(255,255,255,0.08); --border2: rgba(255,255,255,0.15);
      --red-bg: #3A1E1E; --red: #E58A8A;
      --amber-bg: #3A2E12; --amber: #E8C173;
      --green-bg: #163322; --green: #6FCE96;
      --accent: #6C9CF0; --accent-bg: #1F2E4D;
      --ink: #EDEFF4;
    }
  }
  /* Manual theme toggle override (takes priority over system preference either way) */
  html[data-theme="light"] {
    --bg: #ffffff; --bg2: #F3F5FA; --bg3: #EAEEF6; --page-bg: #E7EAF2;
    --text: #1A1D29; --text2: #6B7280; --text3: #9CA3AF;
    --border: rgba(26,29,41,0.08); --border2: rgba(26,29,41,0.15);
    --red-bg: #FDECEC; --red: #D14343;
    --amber-bg: #FEF3DD; --amber: #C2870C;
    --green-bg: #E7F6ED; --green: #1F9D55;
    --accent: #2D6CDF; --accent-bg: #E8EFFC;
    --ink: #1A1D29;
  }
  html[data-theme="dark"] {
    --bg: #14181F; --bg2: #1B212C; --bg3: #212834; --page-bg: #0D1015;
    --text: #EDEFF4; --text2: #98A0AE; --text3: #5F6877;
    --border: rgba(255,255,255,0.08); --border2: rgba(255,255,255,0.15);
    --red-bg: #3A1E1E; --red: #E58A8A;
    --amber-bg: #3A2E12; --amber: #E8C173;
    --green-bg: #163322; --green: #6FCE96;
    --accent: #6C9CF0; --accent-bg: #1F2E4D;
    --ink: #EDEFF4;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  body { font-family: var(--font-sans); font-size: 14px; color: var(--text); background: var(--page-bg); min-height: 100vh; -webkit-font-smoothing: antialiased; }

  /* Tabular/mono treatment for all numeric "ledger" values */
  .num, .mv, .pf-label, td.num-cell { font-family: var(--font-mono); font-feature-settings: "tnum" 1; letter-spacing: -0.01em; }

  /* .shell width handled by the boxed-layout rule further below (width:100%, no max-width cap) */

  /* HEADER */
  .app-header { display: flex; align-items: flex-start; justify-content: space-between; padding: 22px 0 16px; border-bottom: 1px solid var(--border); margin-bottom: 18px; flex-wrap: wrap; gap: 12px; position: relative; }
  .app-header::before { content: ''; position: absolute; top: 0; left: 0; width: 56px; height: 3px; background: var(--accent); border-radius: 0 0 3px 0; }
  .app-header h1 { font-size: 19px; font-weight: 700; display: flex; align-items: center; gap: 9px; letter-spacing: -0.01em; padding-top: 6px; }
  .app-header h1 svg { width: 19px; height: 19px; color: var(--accent); flex-shrink: 0; }
  .app-header p { font-size: 12px; color: var(--text2); margin-top: 4px; font-family: var(--font-mono); letter-spacing: -0.01em; }
  .header-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding-top: 6px; }

  /* SYNC BADGE */
  .sync-badge { display:inline-flex; align-items:center; gap:5px; font-size:11px; font-family: var(--font-mono); padding:5px 10px; border-radius:999px; cursor:pointer; border:1px solid var(--border2); transition: all .12s; }
  .sync-badge:hover { background: var(--bg2); }
  .sync-off { color: var(--text2); }
  .sync-ok { color: var(--green); background: var(--green-bg); border-color: transparent; }
  .sync-err { color: var(--red); background: var(--red-bg); border-color: transparent; }
  .sync-busy svg { animation: spin 1s linear infinite; }

  /* NAV TABS */
  .nav { display: flex; gap: 2px; background: var(--bg2); padding: 3px; border-radius: var(--radius); border: 1px solid var(--border); }
  .nt { padding: 6px 14px; border-radius: 7px; font-size: 12.5px; font-weight: 500; cursor: pointer; border: none; background: transparent; color: var(--text2); font-family: inherit; transition: all .15s; }
  .nt.active { background: var(--ink); color: var(--bg); }
  .nt:hover:not(.active) { background: var(--bg); color: var(--text); }

  /* BUTTONS */
  button { font-family: inherit; cursor: pointer; }
  .btn { padding: 7px 14px; border-radius: var(--radius); border: 1px solid var(--border2); background: var(--bg); color: var(--text); font-size: 12.5px; font-weight: 500; transition: all .12s; display: inline-flex; align-items: center; gap: 6px; }
  .btn:hover { background: var(--bg2); border-color: var(--text2); }
  .btn-primary { background: var(--accent); color: #fff; border-color: transparent; }
  .btn-primary:hover { background: #5A43C4; }
  .btn-danger { color: var(--red); border-color: #E8C3BC; background: transparent; }
  .btn-danger:hover { background: var(--red-bg); }

  /* DASHBOARD SUB-TABS */
  .subtabs { display: flex; gap: 4px; background: var(--bg2); padding: 4px; border-radius: 10px; border: 1px solid var(--border); margin-bottom: 16px; flex-wrap: wrap; }
  .subtab { padding: 7px 14px; border-radius: 7px; font-size: 12.5px; font-weight: 500; cursor: pointer; border: none; background: transparent; color: var(--text2); font-family: inherit; transition: all .15s; }
  .subtab.active { background: var(--bg); color: var(--accent); font-weight: 600; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
  .subtab:hover:not(.active) { color: var(--text); }

  /* FLOATING QUICK PULL BUTTON */
  .fab-pull {
    position: fixed; bottom: 22px; right: 22px; z-index: 999;
    display: flex; align-items: center; gap: 8px;
    padding: 12px 18px; border-radius: 999px; border: none;
    background: var(--accent); color: #fff; font-family: inherit;
    font-size: 13px; font-weight: 600; cursor: pointer;
    box-shadow: 0 6px 18px rgba(45,108,223,0.4);
    transition: all .15s;
  }
  .fab-pull:hover { background: #5A43C4; transform: translateY(-1px); box-shadow: 0 8px 22px rgba(45,108,223,0.5); }
  .fab-pull svg { flex-shrink: 0; }
  @media (max-width: 640px) {
    .fab-pull span { display: none; }
    .fab-pull { padding: 13px; border-radius: 50%; }
  }

  /* SETTINGS PAGE — secondary upload card */
  .settings-subcard { margin-top: 18px; }

  /* REPORT PAGE */
  .report-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
  .report-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px 18px; text-align: center; }
  .report-card svg { width: 30px; height: 30px; color: var(--accent); margin-bottom: 12px; }
  .report-card h3 { font-size: 14px; font-weight: 700; margin-bottom: 6px; }
  .report-card p { font-size: 11.5px; color: var(--text2); margin-bottom: 16px; line-height: 1.6; }

  /* LATE ARRIVAL ALERT (≥30p — cần xin phép quản lý / evident) */
  @keyframes lateBlink { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }
  .late-alert-row { }
  .late-dot { display:inline-block; width:8px; height:8px; border-radius:50%; background: var(--red); margin-left:5px; vertical-align:middle; animation: lateBlink 1.1s ease-in-out infinite; box-shadow: 0 0 4px var(--red); }
  .late-blink { }

  /* PAGES */
  .pg { display: none; } .pg.show { display: block; animation: fadein .25s ease; }
  @keyframes fadein { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

  /* CARDS */
  .card { background: var(--bg); border: 1px solid var(--border2); border-radius: var(--radius-lg); padding: 16px 18px; margin-bottom: 14px; position: relative; overflow: hidden; box-shadow: 0 6px 16px rgba(20,24,30,0.09), 0 1.5px 4px rgba(20,24,30,0.07); transition: box-shadow .15s, transform .15s; }
  .card:hover { box-shadow: 0 10px 24px rgba(20,24,30,0.12), 0 2px 6px rgba(20,24,30,0.08); transform: translateY(-1px); }
  .card.ac-top::before { content:''; position:absolute; top:0; left:0; right:0; height:3px; }
  .card.ac-blue::before { background: var(--accent); }
  .card.ac-green::before { background: var(--green); }
  .card.ac-amber::before { background: var(--amber); }
  .card.ac-red::before { background: var(--red); }
  .card.ac-purple::before { background: #6B4FA0; }
  .card-title { font-size: 13px; font-weight: 600; margin-bottom: 12px; letter-spacing: -0.005em; }

  /* METRICS */
  .metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(124px, 1fr)); gap: 10px; margin-bottom: 14px; }
  .mc { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 13px 14px; position:relative; box-shadow: 0 4px 10px rgba(20,24,30,0.07), 0 1px 3px rgba(20,24,30,0.05); }
  .mc .mic { width:30px; height:30px; border-radius:8px; display:flex; align-items:center; justify-content:center; margin-bottom:9px; background: var(--accent-bg); color: var(--accent); }
  .mc .mic svg { width:15px; height:15px; }
  .mc .ml { font-size: 10.5px; color: var(--text2); margin-bottom: 4px; text-transform: uppercase; letter-spacing: .06em; font-weight: 600; }
  .mc .mv { font-size: 23px; font-weight: 700; line-height: 1.1; }
  .mc .mv::after { content: ''; }
  .mc .ms { font-size: 11px; color: var(--text3); margin-top: 3px; font-family: var(--font-mono); }
  .mc.red { background: var(--red-bg); border-color: transparent; } .mc.red .mv { color: var(--red); } .mc.red .mic { background: rgba(192,57,43,.15); color: var(--red); }
  .mc.amber { background: var(--amber-bg); border-color: transparent; } .mc.amber .mv { color: var(--amber); } .mc.amber .mic { background: rgba(181,115,30,.15); color: var(--amber); }
  .mc.green { background: var(--green-bg); border-color: transparent; } .mc.green .mv { color: var(--green); } .mc.green .mic { background: rgba(94,122,79,.15); color: var(--green); }
  .mc.accent { border-left-color: var(--accent); }

  /* GRID LAYOUTS */
  .grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
  /* DASHBOARD — controls bar */
  .dash-controls {
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px; flex-wrap: wrap; margin-bottom: 14px;
  }
  .tab-pill { display: flex; gap: 3px; background: var(--bg2); padding: 3px; border-radius: 8px; border: 1px solid var(--border); }

  /* DASHBOARD — Row 1: main chart + warning list, side by side */
  .dash-row1 { display: grid; grid-template-columns: 2.4fr 1fr; gap: 14px; margin-bottom: 14px; align-items: stretch; }
  .dash-chart-main, .dash-warn-list { margin-bottom: 0; display: flex; flex-direction: column; }
  .dash-warn-list .tbl-wrap { flex: 1; }
  @media (max-width: 900px) { .dash-row1 { grid-template-columns: 1fr; } }

  /* DASHBOARD — Row 2: bottom charts, full width stacked */
  .dash-row2 { display: flex; flex-direction: column; gap: 14px; }
  .dash-row2 .card { margin-bottom: 0; }
  @media (max-width: 640px) { .grid2 { grid-template-columns: 1fr; } }

  /* LEGEND */
  .legend { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 10px; font-size: 11px; color: var(--text2); font-family: var(--font-mono); }
  .legend span { display: flex; align-items: center; gap: 4px; }
  .ldot { width: 9px; height: 9px; border-radius: 2px; flex-shrink: 0; }

  /* TABLE */
  .tbl-wrap { overflow-x: auto; }
  table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
  th { padding: 8px 10px; text-align: left; color: var(--text2); font-weight: 600; border-bottom: 1px solid var(--border); font-size: 10.5px; white-space: nowrap; text-transform: uppercase; letter-spacing: .05em; }
  td { padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
  td.num, th.num { font-family: var(--font-mono); }
  tr:last-child td { border-bottom: none; }
  tr:hover td { background: var(--bg2); }

  /* Bảng kẻ khung rõ (kiểu Excel) — dùng riêng cho bảng chi tiết Đi trễ để dễ nhìn từng dòng/cột */
  .tbl-grid table { border: 1px solid var(--border2); }
  .tbl-grid th { border: 1px solid var(--border2); background: var(--bg2); white-space: normal; }
  .tbl-grid td { border: 1px solid var(--border2); white-space: normal; vertical-align: top; }
  .tbl-grid tr:last-child td { border: 1px solid var(--border2); }
  .tbl-grid tr:hover td { background: var(--accent-bg); }

  /* Chú thích màu cho bảng chi tiết Đi trễ — để mọi người nhìn phân biệt dễ */
  .late-color-legend { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; margin-bottom: 10px; font-size: 11.5px; color: var(--text2); }
  .late-color-legend span { display: inline-flex; align-items: center; gap: 6px; }
  .lc-dot { width: 10px; height: 10px; border-radius: 3px; display: inline-block; flex-shrink: 0; }
  .late-grid-month-title { font-size: 12.5px; font-weight: 700; color: var(--text); margin: 14px 0 6px; }
  .late-grid-month-title:first-child { margin-top: 0; }

  /* BADGES */
  .badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 10px; font-weight: 700; letter-spacing: .02em; }
  .bd { background: var(--red-bg); color: var(--red); }
  .bw { background: var(--amber-bg); color: var(--amber); }
  .bo { background: var(--green-bg); color: var(--green); }

  /* PROGRESS BAR */
  .pb { height: 5px; border-radius: 3px; background: var(--bg3); overflow: hidden; margin-top: 3px; min-width: 50px; }
  .pf { height: 100%; border-radius: 3px; }

  /* UPLOAD ZONE */
  .up-zone { border: 1.5px dashed var(--border2); border-radius: var(--radius-lg); padding: 28px; text-align: center; cursor: pointer; transition: all .12s; margin-bottom: 12px; }
  .up-zone:hover { background: var(--bg2); border-color: var(--accent); }
  .up-zone svg { width: 30px; height: 30px; color: var(--text2); display: block; margin: 0 auto 10px; }
  .up-zone .ut { font-size: 13.5px; font-weight: 600; }
  .up-zone .us { font-size: 12px; color: var(--text2); margin-top: 4px; font-family: var(--font-mono); }

  /* CHIPS / MONTH SELECTOR */
  .chip-row { display: flex; gap: 6px; flex-wrap: wrap; }
  .chip { display: inline-flex; align-items: center; gap: 5px; padding: 5px 11px; border-radius: 999px; font-size: 12px; font-family: var(--font-mono); border: 1px solid var(--border2); background: var(--bg); color: var(--text2); cursor: pointer; transition: all .12s; }
  .chip.active { background: var(--accent); color: #fff; border-color: transparent; }
  .chip .cx { opacity: .5; font-size: 13px; line-height: 1; }
  .chip.active .cx { opacity: .8; }

  /* WEEK BUTTONS */
  .wbtn { padding: 4px 11px; border-radius: 999px; font-size: 11px; font-family: var(--font-mono); border: 1px solid var(--border2); background: transparent; color: var(--text2); cursor: pointer; transition: all .12s; }
  .wbtn.active { background: var(--accent); color: #fff; border-color: transparent; font-weight: 600; box-shadow: 0 2px 6px rgba(45,108,223,.3); }
  .wbtn:hover:not(.active) { background: var(--accent-bg); color: var(--accent); border-color: var(--accent); }

  /* FORM CONTROLS */
  select, input[type="text"] { font-size: 12.5px; padding: 6px 10px; border-radius: var(--radius); border: 1px solid var(--border2); background: var(--bg); color: var(--text); font-family: inherit; outline: none; }
  select:focus, input:focus { border-color: var(--accent); }
  .action-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 10px; }

  /* TOAST */
  #toast { position: fixed; bottom: 24px; right: 24px; background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: var(--radius); font-size: 13px; font-weight: 500; opacity: 0; transform: translateY(8px); transition: all .2s; pointer-events: none; z-index: 999; }
  #toast.show { opacity: 1; transform: translateY(0); }

  /* INFO BOX */
  .info-box { background: var(--accent-bg); border-radius: var(--radius); padding: 13px 16px; font-size: 12px; color: var(--text2); line-height: 1.8; margin-bottom: 14px; border-left: 3px solid var(--accent); }
  .info-box strong { color: var(--text); }

  /* MONTH LIST */
  .month-list-item { display: flex; align-items: center; justify-content: space-between; padding: 9px 0; border-bottom: 1px solid var(--border); font-size: 12px; }
  .month-list-item:last-child { border-bottom: none; }

  /* DEPT FILTER BAR */
  .dept-bar { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
  .dept-bar label { font-size: 12px; color: var(--text2); }

  /* ── APP SHELL ──────────────────────────────── */
  html, body { height: 100%; overflow: hidden; }
  body { display: flex; background: var(--page-bg); }

  /* ROOT FLEX LAYOUT — nền trang riêng (xám), 3 khung nổi (sidebar/header/main) có khoảng cách rõ */
  .app-root {
    display: flex; height: 100vh; overflow: hidden; width: 100%;
    background: var(--page-bg);
    padding: 14px; gap: 14px; box-sizing: border-box;
  }

  /* SIDEBAR — khung nổi riêng biệt, bo góc đều, tách khỏi nền */
  .sidebar {
    width: 200px; flex-shrink: 0;
    background: #1E4D8C;
    border: 1px solid #163A6B;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(20,24,30,0.10), 0 2px 6px rgba(20,24,30,0.08);
    display: flex; flex-direction: column;
    height: 100%; overflow: hidden;
    position: relative; z-index: 10;
  }

  /* SIDEBAR — BRAND */
  .sb-brand {
    padding: 16px 16px 14px;
    border-bottom: 1px solid rgba(255,255,255,0.12);
    flex-shrink: 0;
    display: flex; align-items: center; gap: 10px;
  }
  .sb-brand-icon {
    width: 34px; height: 34px; flex-shrink: 0;
    background: #fff; border-radius: 9px;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent); box-shadow: 0 2px 6px rgba(0,0,0,.25);
  }
  .sb-brand-icon svg { width: 18px; height: 18px; }
  .sb-brand h1 {
    font-size: 14.5px; font-weight: 700;
    letter-spacing: -0.01em; color: #fff;
    line-height: 1.3;
  }
  .beta-badge {
    display: inline-block; font-size: 9px; font-weight: 700; letter-spacing: .03em;
    color: #fff; background: rgba(255,255,255,0.18); border-radius: 5px;
    padding: 1.5px 5px; margin-left: 4px; vertical-align: middle; text-transform: uppercase;
  }
  .sb-brand p {
    font-size: 10px; color: #A9C2DC;
    margin-top: 1px; line-height: 1.4;
  }

  /* SIDEBAR — NAV */
  .sb-nav { flex: 1; padding: 10px 8px; overflow-y: auto; }
  .sb-section-label {
    font-size: 9.5px; font-weight: 700; letter-spacing: .1em;
    text-transform: uppercase; color: #9DBBDC;
    padding: 12px 8px 5px; display: block;
  }
  .sb-section-label i { font-style: normal; font-weight: 500; text-transform: none; letter-spacing: 0; opacity: .7; font-size: 9px; }
  .nt {
    display: flex; align-items: center; gap: 9px;
    width: 100%; padding: 7px 10px;
    border-radius: 8px; border: none; background: transparent;
    color: #EAF2FC; font-family: inherit;
    font-size: 13px; font-weight: 600;
    cursor: pointer; transition: all .12s;
    text-align: left;
  }
  .nt svg { flex-shrink: 0; opacity: .9; }
  .nt-label { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.25; }
  .nt-en { font-size: 9px; font-weight: 600; opacity: .75; letter-spacing: .02em; }
  .nt:hover:not(.active) { background: rgba(255,255,255,0.14); color: #fff; }
  .nt:hover:not(.active) svg { opacity: 1; }
  .nt.active {
    background: #fff; color: var(--accent);
    font-weight: 700; box-shadow: 0 2px 6px rgba(0,0,0,.2);
  }
  .nt.active svg { opacity: 1; color: var(--accent); }
  .nt.active .nt-en { opacity: .8; }

  /* SIDEBAR — ACTIONS */
  .sb-actions {
    padding: 10px 8px;
    border-top: 1px solid rgba(255,255,255,0.12);
    display: flex; flex-direction: column; gap: 5px;
    flex-shrink: 0;
  }
  .sb-btn {
    display: flex; align-items: center; gap: 8px;
    width: 100%; padding: 8px 10px;
    border-radius: 8px; border: none; background: transparent;
    color: #EAF2FC; font-family: inherit;
    font-size: 12.5px; font-weight: 600;
    cursor: pointer; transition: all .12s; text-align: left;
  }
  .sb-btn:hover { background: rgba(255,255,255,0.14); color: #fff; }
  .sb-btn svg { flex-shrink: 0; }
  .sb-btn.primary { background: var(--accent); color: #fff; margin-top: 2px; }
  .sb-btn.primary:hover { background: #5A43C4; }

  /* SIDEBAR — ADMIN-ONLY (Cài đặt), nằm cuối, tách khỏi nav chung */
  .sb-admin {
    padding: 10px 8px 4px;
    border-top: 1px solid rgba(255,255,255,0.12);
    flex-shrink: 0;
  }
  .sb-admin-label {
    font-size: 9px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
    color: #7FA0C4; padding: 2px 10px 6px; display: block;
  }
  .sb-admin-label i { font-style: normal; font-weight: 500; text-transform: none; letter-spacing: 0; opacity: .7; }

  /* SIDEBAR — SYNC BADGE */
  .sb-sync {
    padding: 10px 16px 14px;
    border-top: 1px solid rgba(255,255,255,0.12);
    flex-shrink: 0;
  }
  .sync-badge {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 11px; font-family: var(--font-mono);
    padding: 6px 10px; border-radius: 999px;
    cursor: pointer; border: 1px solid rgba(255,255,255,0.25);
    transition: all .12s; width: 100%; justify-content: center;
  }
  .sync-badge:hover { background: rgba(255,255,255,0.10); }
  .sync-off { color: #A9C2DC; }
  .sync-ok { color: var(--green); background: var(--green-bg); border-color: transparent; }
  .sync-err { color: var(--red); background: var(--red-bg); border-color: transparent; }
  .sync-busy svg { animation: spin 1s linear infinite; }

  /* MAIN — toàn bộ cột phải, chia thành header (khung riêng) + main-panel (khung riêng), có khoảng cách giữa 2 khung */
  .main {
    flex: 1; height: 100%; overflow: hidden;
    background: transparent;
    display: flex; flex-direction: column;
    min-width: 0; gap: 14px;
  }

  /* TOP HEADER — khung nổi riêng biệt, bo góc đều như sidebar/main-panel, KHÔNG dính sát cạnh trên/dưới */
  .top-header {
    flex-shrink: 0;
    background: #E9F2FB; border: 1px solid #D3E4F5;
    border-radius: 16px;
    padding: 13px 22px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; flex-wrap: wrap; z-index: 5;
    box-shadow: 0 8px 20px rgba(20,24,30,0.10), 0 2px 6px rgba(20,24,30,0.08);
  }
  .th-title-block { min-width: 0; }
  .th-title { font-size: 17px; font-weight: 700; letter-spacing: -0.01em; color: var(--text); display: flex; align-items: center; gap: 6px; }
  .th-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
  .th-greet { text-align: right; }
  .th-greet .greet-title { font-size: 13px; font-weight: 600; color: var(--text); line-height: 1.3; }
  .th-greet .greet-date { font-size: 10.5px; color: var(--text2); font-family: var(--font-mono); margin-top: 2px; }
  html[data-theme="dark"] .top-header { background: #1E3350; border-color: #2A4A70; }
  @media (prefers-color-scheme: dark) {
    html:not([data-theme="light"]) .top-header { background: #1E3350; border-color: #2A4A70; }
  }

  /* MAIN SCROLL — khu vực cuộn riêng cho khung nội dung, không padding ngoài để khung main-panel không bị lệch/dư 2 bên */
  .main-scroll { flex: 1; overflow-y: auto; overflow-x: hidden; min-height: 0; }

  /* SHELL — full width bên trong main-scroll, không margin/padding thừa */
  .shell { width: 100%; }

  /* MAIN PANEL — khung nổi riêng biệt bao quanh nội dung từng trang, kích thước khớp khung, không tràn 2 bên */
  .main-panel {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 16px; padding: 20px 22px 24px;
    box-shadow: 0 8px 20px rgba(20,24,30,0.10), 0 2px 6px rgba(20,24,30,0.08);
    min-height: calc(100% - 0px);
    width: 100%; max-width: 100%; overflow-x: hidden;
    box-sizing: border-box;
  }

  /* Remove old header styles */
  .app-header, .header-actions, .nav { display: none !important; }

  /* LOADING */
  .loading { text-align: center; padding: 80px 20px; color: var(--text2); }
  .loading svg { width: 36px; height: 36px; margin: 0 auto 12px; display: block; animation: spin 1s linear infinite; color: var(--accent); }
  @keyframes spin { to { transform: rotate(360deg); } }

  /* EMPTY STATE */
  .empty { text-align: center; padding: 48px 20px; color: var(--text2); }
  .empty svg { width: 48px; height: 48px; margin: 0 auto 12px; display: block; opacity: .4; }

  /* SCROLLBAR */
  ::-webkit-scrollbar { width: 5px; height: 5px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

  /* Page title strip */
  .page-title {
    font-size: 17px; font-weight: 700; letter-spacing: -0.01em;
    margin-bottom: 18px; color: var(--text);
    display: flex; align-items: center; gap: 8px;
  }
  .page-title svg { color: var(--accent); }

  /* GREETING (trong top-header) */
  .greet-sub { font-size: 12px; color: var(--text2); margin-top: 2px; }
  .greet-sub strong { color: var(--text); font-weight: 600; }
  /* TOP-RIGHT ICON ROW (theme toggle, notification, avatar) */
  .icon-row { display: flex; align-items: center; gap: 8px; }
  .icon-btn {
    width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--border);
    background: var(--bg); color: var(--text2); display: flex; align-items: center;
    justify-content: center; cursor: pointer; transition: all .12s; position: relative; flex-shrink: 0;
  }
  .icon-btn:hover { background: var(--bg2); color: var(--text); }
  .icon-dot {
    position: absolute; top: 6px; right: 7px; width: 7px; height: 7px;
    border-radius: 50%; background: var(--red); border: 1.5px solid var(--bg);
  }
  .icon-avatar {
    width: 34px; height: 34px; border-radius: 50%; border: none;
    background: var(--accent); color: #fff; font-size: 13px; font-weight: 700;
    display: flex; align-items: center; justify-content: center; cursor: pointer;
    flex-shrink: 0; transition: all .12s;
  }
  .icon-avatar:hover { background: #2459C2; }
  .btn-pull-sheet {
    display: flex; align-items: center; gap: 6px;
    height: 34px; padding: 0 14px; border-radius: 999px; border: none;
    background: var(--accent); color: #fff; font-size: 12.5px; font-weight: 600;
    font-family: var(--font-sans); cursor: pointer; transition: all .12s; white-space: nowrap; flex-shrink: 0;
  }
  .btn-pull-sheet:hover { background: #2459C2; }
  .btn-pull-sheet svg { flex-shrink: 0; }
  @media (max-width: 640px) { .btn-pull-sheet span { display: none; } .btn-pull-sheet { padding: 0; width: 34px; border-radius: 50%; justify-content: center; } }

  @media (max-width: 700px) {
    .app-root { padding: 8px; gap: 8px; }
    .main { gap: 8px; }
    .sidebar { width: 56px; }
    .sb-brand p, .sb-section-label, .nt span, .sb-btn span, .sb-sync { display: none; }
    .sb-brand h1 span { display: none; }
    .nt, .sb-btn { justify-content: center; padding: 10px; }
    .nt svg, .sb-btn svg { margin: 0; }
    .top-header { padding: 10px 14px; border-radius: 12px; }
    .main-panel { padding: 14px 14px 18px; border-radius: 12px; }
  }

  /* Action Plan — hàng bị ECM/HODs Từ chối nhấp nháy đỏ để dễ nhận biết ngay */
  @keyframes rowRejectBlink {
    0%, 100% { background-color: rgba(192,57,43,0.14); }
    50%      { background-color: rgba(192,57,43,0.32); }
  }
  tr.row-rejected { animation: rowRejectBlink 1.4s ease-in-out infinite; }
  tr.row-rejected td { border-color: rgba(192,57,43,0.35) !important; }