:root {
  color-scheme: light;
  --navy: #17213a;
  --navy-soft: #22304f;
  --primary: #4e68db;
  --primary-dark: #3d54bf;
  --primary-soft: #eef1ff;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --text: #172033;
  --muted: #6b7485;
  --line: #e3e7ef;
  --success: #1f8c5a;
  --success-soft: #e8f6ef;
  --warning: #9a6414;
  --warning-soft: #fff5df;
  --radius: 13px;
  font-family: "Noto Sans Thai", system-ui, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
button, input, select { font: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

.app-shell { display: grid; grid-template-columns: 238px minmax(0, 1fr); min-height: 100vh; }
.sidebar { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; padding: 20px 14px; background: var(--navy); color: #fff; }
.brand { display: flex; align-items: center; gap: 11px; padding: 3px 8px 22px; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 11px; background: linear-gradient(135deg, #637cf0, #3f55bd); font-weight: 700; }
.brand div, .profile div, .sidebar-footer div, .topbar-copy { display: grid; }
.brand small, .sidebar-footer small { color: #aeb9d2; }
.main-nav { display: grid; gap: 5px; }
.main-nav button { display: flex; align-items: center; gap: 11px; width: 100%; min-height: 44px; padding: 9px 11px; border: 0; border-radius: 9px; background: transparent; color: #c8d1e6; text-align: left; }
.main-nav button:hover { background: rgba(255,255,255,.06); color: #fff; }
.main-nav button.active { background: var(--primary); color: #fff; box-shadow: 0 8px 22px rgba(46,66,153,.35); }
.nav-icon { width: 22px; text-align: center; font-size: 20px; }
.sidebar-footer { display: flex; gap: 9px; align-items: center; margin-top: auto; padding: 13px 10px; border-top: 1px solid rgba(255,255,255,.1); }
.sidebar-footer strong { font-size: 13px; }.sidebar-footer small { font-size: 11px; }
.online-dot { width: 8px; height: 8px; border-radius: 50%; background: #56d896; box-shadow: 0 0 0 5px rgba(86,216,150,.12); }

.workspace { min-width: 0; }
.topbar { min-height: 69px; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 11px 28px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.92); backdrop-filter: blur(10px); }
.topbar-copy small, .profile small { color: var(--muted); font-size: 12px; }
.profile { display: flex; align-items: center; gap: 9px; }
.profile-avatar { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; background: var(--primary-soft); color: var(--primary-dark); font-weight: 600; }
.menu-toggle { display: none; border: 0; background: transparent; font-size: 22px; }
.page-wrap { max-width: 1500px; margin: 0 auto; padding: 26px 28px 45px; }
.page-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; margin-bottom: 18px; }
h1, h2 { margin: 0; } h1 { font-size: 25px; } h2 { font-size: 17px; }
.page-heading p, .panel-title p, .section-help { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.mode-badge, .date-chip { padding: 6px 10px; border-radius: 999px; background: var(--primary-soft); color: var(--primary-dark); font-size: 12px; font-weight: 600; }

.stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 13px; margin-bottom: 17px; }
.stat-card, .panel { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: 0 5px 18px rgba(31,43,71,.045); }
.stat-card { padding: 16px; }
.stat-card span { color: var(--muted); font-size: 13px; }
.stat-card strong { display: block; margin: 5px 0 2px; font-size: 23px; }
.stat-card small { color: var(--muted); }.stat-card small.good { color: var(--success); }
.panel { padding: 18px; margin-bottom: 15px; }
.panel-title { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.step-label { margin-bottom: 3px; color: var(--primary); font-size: 11px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; }

.filter-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 12px; margin-bottom: 14px; }
.filter-grid label, .assign-filters label { display: grid; gap: 5px; color: #4f5868; font-size: 12px; }
input[type="search"], input[type="number"], select { min-height: 41px; width: 100%; padding: 8px 10px; border: 1px solid #ccd3df; border-radius: 8px; background: #fff; color: var(--text); outline: none; }
input:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(78,104,219,.12); }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 11px 9px; border-bottom: 1px solid #edf0f4; text-align: left; white-space: nowrap; }
th { color: var(--muted); font-size: 12px; font-weight: 600; }
td.number, th.number { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: #fafbfe; }
.table-footer { padding-top: 12px; color: var(--muted); font-size: 12px; }
.status { display: inline-flex; padding: 3px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.status.success { color: var(--success); background: var(--success-soft); }
.status.pending { color: var(--warning); background: var(--warning-soft); }
.progress-track { width: 100px; height: 7px; overflow: hidden; border-radius: 99px; background: #e9edf4; }
.progress-fill { height: 100%; border-radius: inherit; background: var(--primary); }

.button { min-height: 41px; padding: 8px 14px; border-radius: 8px; border: 1px solid #ccd3df; background: #fff; color: var(--text); font-weight: 600; }
.button:hover { transform: translateY(-1px); }
.button.primary { border-color: var(--primary); background: var(--primary); color: #fff; box-shadow: 0 7px 17px rgba(78,104,219,.2); }
.button.primary:hover { background: var(--primary-dark); }
.button.secondary { background: #fff; }
.action-row { display: flex; justify-content: flex-end; gap: 9px; margin-top: 15px; }

.assign-layout { display: grid; grid-template-columns: minmax(0,1fr) 270px; gap: 15px; align-items: start; }
.selection-summary { position: sticky; top: 85px; padding: 18px; border-radius: var(--radius); background: var(--navy); color: #fff; box-shadow: 0 12px 27px rgba(21,32,58,.16); }
.selection-summary dl { margin: 15px 0; }.selection-summary dl div { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.selection-summary dt { color: #b4bed4; font-size: 12px; }.selection-summary dd { margin: 0; text-align: right; font-size: 13px; font-weight: 600; }
.summary-note { padding: 10px; border-radius: 8px; background: rgba(255,255,255,.08); color: #d5dced; font-size: 11px; }
.check-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; margin-top: 13px; }
.check-grid.two-columns { grid-template-columns: repeat(2,minmax(0,1fr)); }
.check-card { display: flex; gap: 9px; align-items: flex-start; padding: 12px; border: 1px solid #dbe0e9; border-radius: 9px; cursor: pointer; }
.check-card:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); }
.check-card input, .inline-check input, .staff-check input { width: 17px; height: 17px; accent-color: var(--primary); }
.check-card span { display: grid; }.check-card strong { font-size: 13px; }.check-card small { color: var(--muted); font-size: 11px; }
.assign-filters { grid-template-columns: repeat(3,minmax(0,1fr)); margin-top: 14px; }
.inline-check { display: flex; align-items: center; gap: 7px; color: #4f5868; font-size: 12px; }
.staff-checks { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 9px; margin-top: 13px; }
.staff-check { display: flex; align-items: center; gap: 8px; padding: 10px; border: 1px solid #dbe0e9; border-radius: 9px; cursor: pointer; }
.staff-mini-avatar { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; background: #edf0fa; color: var(--primary-dark); font-weight: 600; }
.staff-check span:last-child { display: grid; }.staff-check strong { font-size: 12px; }.staff-check small { color: var(--muted); font-size: 10px; }
.result-count { padding: 7px 10px; border-radius: 8px; background: var(--primary-soft); color: var(--primary-dark); font-size: 12px; font-weight: 600; }
.empty-row { padding: 30px; color: var(--muted); text-align: center; }
.balance-cell { display: flex; align-items: center; gap: 8px; }
.balance-cell .progress-track { flex: 1; }
.allocation-foot { display: flex; align-items: flex-end; justify-content: space-between; gap: 15px; padding-top: 14px; }
.allocation-foot > div:first-child { display: grid; }.allocation-foot span, .allocation-foot small { color: var(--muted); font-size: 11px; }.allocation-foot strong { font-size: 15px; }

.upload-panel { text-align: center; }
.upload-zone { display: grid; place-items: center; min-height: 190px; margin-top: 14px; padding: 22px; border: 2px dashed #cbd3df; border-radius: 12px; background: #fafbfe; cursor: pointer; }
.upload-zone:hover { border-color: var(--primary); background: var(--primary-soft); }
.upload-zone span { display: grid; place-items: center; gap: 4px; }.upload-zone input { margin-top: 10px; max-width: 270px; }.upload-zone small { color: var(--muted); }
.upload-symbol { width: 45px; height: 45px; display: grid; place-items: center; border-radius: 50%; background: var(--primary-soft); color: var(--primary); font-size: 24px; }
.info-box { margin-top: 13px; padding: 10px; border-radius: 8px; background: var(--warning-soft); color: var(--warning); font-size: 12px; }
.import-result { display: grid; gap: 12px; margin-top: 14px; padding: 15px; border: 1px solid #dbe0e9; border-radius: 10px; text-align: left; }.import-result > div:first-child { display: grid; }.import-result small { color: var(--muted); }
.import-stats { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 9px; }.import-stats span { padding: 10px; border-radius: 8px; background: #f6f8fc; color: var(--muted); font-size: 11px; }.import-stats strong { display: block; color: var(--text); font-size: 16px; }
.toast { position: fixed; right: 22px; bottom: 22px; z-index: 20; max-width: 340px; padding: 12px 15px; border-radius: 9px; background: var(--navy); color: #fff; box-shadow: 0 12px 30px rgba(0,0,0,.22); opacity: 0; transform: translateY(15px); pointer-events: none; transition: .2s ease; }
.toast.show { opacity: 1; transform: translateY(0); }

@media (max-width: 1100px) {
  .stat-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .assign-layout { grid-template-columns: 1fr; }
  .selection-summary { position: static; }
}
@media (max-width: 780px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 30; width: 238px; transform: translateX(-100%); transition: .2s ease; }
  .sidebar.open { transform: translateX(0); }
  .menu-toggle { display: block; }.topbar { padding: 10px 15px; }.page-wrap { padding: 18px 14px 35px; }
  .profile div { display: none; }.filter-grid, .assign-filters { grid-template-columns: 1fr; }
  .check-grid, .check-grid.two-columns { grid-template-columns: 1fr; }.staff-checks { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 480px) {
  .stat-grid, .stat-grid.compact { grid-template-columns: 1fr; }
  .page-heading { align-items: stretch; flex-direction: column; }.page-heading .button { width: 100%; }
  .panel { padding: 14px; }.staff-checks { grid-template-columns: 1fr; }
  .allocation-foot { align-items: stretch; flex-direction: column; }.allocation-foot .action-row { width: 100%; }.allocation-foot .button { flex: 1; }
  .import-stats { grid-template-columns: repeat(2,minmax(0,1fr)); }
}