:root{
  --bg:#f4f6fb; --card:#ffffff; --ink:#1f2937; --muted:#6b7280;
  --brand:#2563eb; --brand2:#1d4ed8; --accent:#0ea5e9; --line:#e5e7eb;
  --ok:#16a34a; --warn:#d97706; --bad:#dc2626; --pc:#7c3aed; --pcs:#0891b2;
  --chip:#eef2ff; --shadow:0 1px 3px rgba(0,0,0,.08),0 4px 16px rgba(0,0,0,.06);
}
*{box-sizing:border-box}
body{margin:0;font-family:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;line-height:1.45}
header{background:linear-gradient(120deg,#1e3a8a,#2563eb 60%,#0891b2);color:#fff;padding:18px 26px;
  box-shadow:var(--shadow);position:sticky;top:0;z-index:30}
header h1{margin:0;font-size:20px;font-weight:700;letter-spacing:.2px}
header .sub{font-size:12.5px;opacity:.92;margin-top:3px}
.wrap{max-width:1500px;margin:0 auto;padding:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;
  margin-bottom:16px;box-shadow:var(--shadow)}
.card h2{margin:0 0 10px;font-size:15px;display:flex;align-items:center;gap:8px}
.card h2 .ic{width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--chip);color:var(--brand);border-radius:6px;font-size:12px;font-weight:700}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.spacer{flex:1}
button{font:inherit;cursor:pointer;border:1px solid var(--line);background:#fff;color:var(--ink);
  padding:8px 14px;border-radius:9px;font-weight:600;transition:.15s;display:inline-flex;align-items:center;gap:6px}
button:hover{border-color:var(--brand);color:var(--brand)}
button.primary{background:var(--brand);border-color:var(--brand);color:#fff}
button.primary:hover{background:var(--brand2);color:#fff}
button.ghost{background:transparent}
button.sm{padding:5px 10px;font-size:12.5px;border-radius:7px}
button:disabled{opacity:.5;cursor:not-allowed}
input,select{font:inherit;padding:7px 10px;border:1px solid var(--line);border-radius:8px;background:#fff}
input:focus,select:focus{outline:2px solid #bfdbfe;border-color:var(--brand)}
label{font-size:12.5px;color:var(--muted);font-weight:600}
.hint{font-size:12px;color:var(--muted)}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:700}
.badge.pc{background:#ede9fe;color:var(--pc)}
.badge.pcs{background:#cffafe;color:var(--pcs)}
.drop{border:2px dashed #c7d2fe;background:#f8faff;border-radius:12px;padding:22px;text-align:center;color:var(--muted)}
.drop.drag{border-color:var(--brand);background:#eef4ff;color:var(--brand)}
.steps{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.step{display:flex;align-items:center;gap:7px;padding:6px 11px;border-radius:999px;background:#fff;
  border:1px solid var(--line);font-size:12.5px;font-weight:600;color:var(--muted)}
.step.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.step.done{background:#dcfce7;color:#15803d;border-color:#86efac}
.step .n{width:17px;height:17px;border-radius:50%;background:rgba(0,0,0,.08);display:inline-flex;
  align-items:center;justify-content:center;font-size:11px}
.step.active .n{background:rgba(255,255,255,.25)}
table{border-collapse:collapse;width:100%;font-size:12.5px}
th,td{border:1px solid var(--line);padding:5px 7px;text-align:center;white-space:nowrap}
thead th{background:#f8fafc;font-weight:700;color:#374151;position:sticky;top:0}
td.name,th.name{text-align:left;min-width:140px}
td.id,th.id{min-width:90px}
tbl-scroll{display:block}
.grid-scroll{overflow:auto;max-height:560px;border:1px solid var(--line);border-radius:10px}
.cell{min-width:78px;font-weight:600;border-radius:5px;padding:3px 0 2px;cursor:pointer;text-align:center}
.cell-times{font-size:8px;font-weight:600;line-height:1.15;color:inherit;opacity:1;margin-top:1px}
.cell.DO{background:#e2e8f0;color:#334155}
.cell.MASI{background:#dcfce7;color:#14532d}
.cell.MNSI{background:#fef9c3;color:#713f12}
.cell.MAS{background:#dbeafe;color:#1e3a8a}
.cell.AN{background:#fae8ff;color:#86198f}
.cell.AL{background:#fee2e2;color:#991b1b}
.cell.OFF{background:#e2e8f0;color:#334155}
.cell.PC{background:#ede9fe;color:#5b21b6}
.cell.empty{background:#fff;color:#cbd5e1}
.cell:hover{outline:2px solid var(--brand)}
.roster-row:hover{background:#f8faff}
.legend{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px;font-size:12px}
.legend span{display:inline-flex;align-items:center;gap:5px}
.legend i{width:13px;height:13px;border-radius:3px;display:inline-block}

/* Inline shift code reference — COMPACT horizontal chips (code + times inline, small) */
.inline-shift-ref{
  background:#f8fafc;border:1px solid #e2e8f0;border-radius:6px;
  padding:4px 8px;margin:6px 0;display:flex;flex-wrap:wrap;gap:3px 10px;align-items:center;
}
.inline-shift-ref .isr-label{font-size:10px;font-weight:700;color:#475569;white-space:nowrap;margin-right:2px}
.inline-shift-ref .isr-card{
  display:inline-flex;align-items:center;gap:3px;white-space:nowrap;
}
.inline-shift-ref .isr-card .isr-code{
  font-size:10px;font-weight:700;border-radius:3px;padding:1px 4px;min-width:28px;text-align:center;
}
.inline-shift-ref .isr-card .isr-times{font-size:8.5px;color:#475569;line-height:1.1;font-weight:600}
.inline-shift-ref .isr-card .isr-meaning{display:none}
/* colour-coded chip backgrounds (match roster cell colours) */
.inline-shift-ref .isr-code.DO  {background:#e2e8f0;color:#334155}
.inline-shift-ref .isr-code.MASI{background:#dcfce7;color:#14532d}
.inline-shift-ref .isr-code.MNSI{background:#fef9c3;color:#713f12}
.inline-shift-ref .isr-code.MAS {background:#dbeafe;color:#1e3a8a}
.inline-shift-ref .isr-code.AN  {background:#fae8ff;color:#86198f}
.inline-shift-ref .isr-code.AL  {background:#fee2e2;color:#991b1b}
.modal-bg{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;align-items:center;
  justify-content:center;z-index:60}
.modal-bg.show{display:flex}
.modal{background:#fff;border-radius:14px;padding:18px;min-width:320px;max-width:380px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal h3{margin:0 0 6px;font-size:15px}
.modal .opts{display:flex;flex-direction:column;gap:6px;margin:10px 0}
.modal .opts label{display:flex;align-items:center;gap:8px;cursor:pointer;padding:7px 9px;border:1px solid var(--line);border-radius:8px;font-size:13px;color:var(--ink)}
.modal .opts label:hover{border-color:var(--brand)}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#111827;color:#fff;
  padding:10px 18px;border-radius:10px;font-size:13px;font-weight:600;box-shadow:var(--shadow);
  z-index:80;opacity:0;transition:.25s;pointer-events:none}
.toast.show{opacity:1;bottom:30px}
.stats{display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;color:var(--muted)}
.stats b{color:var(--ink)}
.tabbar{display:flex;gap:6px;margin-bottom:10px;border-bottom:1px solid var(--line)}
.tab{padding:8px 16px;cursor:pointer;font-weight:600;color:var(--muted);border-bottom:2px solid transparent;border-radius:6px 6px 0 0}
.tab.active{color:var(--brand);border-bottom-color:var(--brand);background:#f8faff}
.muted{color:var(--muted)}
.kbd{background:#f1f5f9;border:1px solid var(--line);border-radius:4px;padding:1px 5px;font-size:11px;font-family:monospace}
.empty-state{text-align:center;padding:40px;color:var(--muted)}
.empty-state .big{font-size:42px;margin-bottom:8px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:900px){.two-col{grid-template-columns:1fr}}
footer{text-align:center;color:var(--muted);font-size:12.5px;padding:20px;font-weight:600;border-top:1px solid #e2e8f0;margin-top:10px}
select.code-sel{padding:2px 4px;font-size:11.5px;border-radius:5px}

/* ---------- EMPLOYEE MASTER — COMPACT TABLE ---------- */
.emp-scroll{overflow:auto;max-height:340px;border:1px solid var(--line);border-radius:9px}
table.emp-table{font-size:12px}
.emp-table th,.emp-table td{padding:2px 5px;white-space:nowrap}
.emp-table thead th{position:sticky;top:0;z-index:5}
.emp-table input,.emp-table select{padding:3px 6px;font-size:11.5px;border-radius:5px;min-width:0}
.emp-table .e-name{width:170px}
.emp-table .e-id{width:74px}
.emp-table .e-dept{width:78px}
.emp-table .e-comp{width:56px}
.emp-table .e-section{width:104px}
.emp-table .e-del{padding:1px 7px;font-size:11px;line-height:1.5}
.emp-table tbody tr:nth-child(odd){background:#fafbfd}
.emp-actions{margin-top:8px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}

/* ---------- OPTIONAL COLLAPSED CARD (Excel import) ---------- */
details.card.optional{padding:0;overflow:hidden}
details.card.optional summary{cursor:pointer;list-style:none;padding:12px 18px;font-weight:600;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;user-select:none}
details.card.optional summary::-webkit-details-marker{display:none}
details.card.optional summary::before{content:'▸';font-size:12px;color:var(--muted);transition:.15s}
details.card.optional[open] summary::before{content:'▾'}
details.card.optional summary:hover{color:var(--brand);background:#f8faff}
details.card.optional .drop{padding:14px}

/* ---------- SECTION HEADERS (on-screen roster grid) ---------- */
.grid-sec-head{font-size:13px;font-weight:800;color:#fff;background:#1e3a8a;padding:5px 12px;
  border-radius:8px 8px 0 0;margin-top:14px;letter-spacing:1px;display:flex;align-items:center;gap:8px}
.grid-sec-head:first-child{margin-top:0}
.grid-sec-count{font-weight:600;font-size:11px;opacity:.85}