:root {
  --bg: #f4f1ec;
  --card: #ffffff;
  --ink: #2b2622;
  --muted: #7a716a;
  --line: #e2dcd4;
  --accent: #8a5a2b;
  --accent-ink: #ffffff;
  --accent-soft: #f3e8dc;
  --ok: #2f7d4f;
  --ok-soft: #e4f3ea;
  --bad: #b3261e;
  --bad-soft: #fbe7e5;
  --warn: #9a6400;
  --radius: 10px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Sarabun', Tahoma, sans-serif;
  font-size: 15px;
  color: var(--ink);
  background: var(--bg);
}
h1 { font-size: 20px; margin: 0; }
h2 { font-size: 16px; margin: 0 0 10px; }
kbd { font-family: inherit; font-size: 11px; border: 1px solid currentColor; border-radius: 4px; padding: 0 4px; opacity: .7; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.nowrap { white-space: nowrap; }
.spacer { flex: 1; }
.print-only { display: none; }

.topbar {
  display: flex; align-items: center; gap: 24px;
  padding: 10px 20px; background: var(--ink); color: #fff;
}
.brand { font-weight: 700; font-size: 17px; }
.brand span { font-weight: 400; opacity: .7; }
.topbar nav { display: flex; gap: 4px; flex-wrap: wrap; }
.topbar nav a { color: #fff; text-decoration: none; padding: 6px 12px; border-radius: 8px; opacity: .75; }
.topbar nav a:hover { opacity: 1; }
.topbar nav a.active { background: rgba(255, 255, 255, .15); opacity: 1; }

main { max-width: 1280px; margin: 0 auto; padding: 16px; }

.toolbar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.toolbar h1 { margin: 0 8px; }
.status { font-size: 14px; margin-right: auto; }
.status.warn { color: var(--warn); }
.status.ok { color: var(--ok); }

.btn {
  font: inherit; border: 1px solid var(--line); background: var(--card); color: var(--ink);
  padding: 7px 14px; border-radius: 8px; cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn.ghost { background: transparent; }
.icon { font: inherit; border: 0; background: none; cursor: pointer; color: var(--muted); padding: 2px 6px; border-radius: 6px; }
.icon:hover { background: var(--bad-soft); color: var(--bad); }

input, select {
  font: inherit; color: inherit; background: #fff;
  border: 1px solid var(--line); border-radius: 6px; padding: 5px 7px; width: 100%;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
input.invalid { border-color: var(--bad); background: var(--bad-soft); }
input[type="checkbox"] { width: 18px; height: 18px; }
.toolbar input[type="date"], .toolbar select { width: auto; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; margin-bottom: 14px; overflow-x: auto; }
.panels { display: grid; grid-template-columns: 3fr 2fr; gap: 14px; }
.panels .card { margin-bottom: 0; }
.day .panels, .settings .panels { margin-bottom: 14px; }

/* ตารางคีย์ข้อมูล */
.grid { width: 100%; border-collapse: collapse; min-width: 900px; }
.grid th { font-size: 13px; font-weight: 600; color: var(--muted); text-align: left; padding: 4px; border-bottom: 1px solid var(--line); }
.grid td { padding: 3px; border-bottom: 1px solid var(--line); }
.grid tr:focus-within td { background: var(--accent-soft); }
.c-seq { width: 36px; text-align: center !important; color: var(--muted); font-weight: 600; }
.c-time { width: 84px; }
.c-hours { width: 70px; }
.c-price { width: 96px; }
.c-pay { width: 96px; }
.c-del { width: 32px; }
.grid-foot { display: flex; align-items: center; gap: 12px; margin-top: 10px; font-size: 13px; flex-wrap: wrap; }

/* ตารางสรุป */
.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td { padding: 6px 8px; border-bottom: 1px solid var(--line); text-align: left; }
.tbl thead th { font-size: 13px; color: var(--muted); font-weight: 600; }
.tbl th small { display: block; font-weight: 400; font-size: 11px; }
.tbl tbody th { font-weight: 600; }
.tbl tfoot th, .tbl tfoot td { font-weight: 700; border-top: 2px solid var(--ink); border-bottom: 0; }
.tbl .num { text-align: right; }
.tbl .strong { font-weight: 700; color: var(--accent); }
.tbl.form td { padding: 4px; }
.close-tbl td { width: 30%; }
.close-tbl tr.total th, .close-tbl tr.total td { font-weight: 700; border-top: 2px solid var(--ink); }

.checks { margin: 10px 0; display: grid; gap: 4px; font-size: 14px; }
.checks .ok { color: var(--ok); }
.checks .bad { color: var(--bad); font-weight: 600; }
.note-label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }

/* หน้าสรุปรอบ */
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--card); }
.seg a { padding: 6px 12px; text-decoration: none; color: var(--ink); border-right: 1px solid var(--line); }
.seg a:last-child { border-right: 0; }
.seg a.active { background: var(--accent); color: var(--accent-ink); }
.period-title { margin: 4px 0 12px; }
.days { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 6px; margin-bottom: 14px; }
.daychip {
  display: grid; gap: 2px; padding: 6px 8px; border-radius: 8px; text-decoration: none; color: var(--ink);
  border: 1px solid var(--line); background: var(--card); font-size: 13px;
}
.daychip span { color: var(--muted); font-size: 12px; }
.daychip.ok { border-color: var(--ok); background: var(--ok-soft); }
.daychip.bad { border-color: var(--bad); background: var(--bad-soft); }
.daychip.bad span { color: var(--bad); }
.daychip.empty { border-style: dashed; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.kpis div { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; display: grid; }
.kpis span { color: var(--muted); font-size: 13px; }
.kpis b { font-size: 20px; font-variant-numeric: tabular-nums; }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  padding: 10px 18px; border-radius: 8px; color: #fff; background: var(--ok);
  box-shadow: 0 4px 16px rgba(0, 0, 0, .2); z-index: 10; max-width: 90vw;
}
.toast.error { background: var(--bad); }

@media (max-width: 900px) {
  .panels { grid-template-columns: 1fr; }
  .topbar { flex-direction: column; align-items: flex-start; gap: 6px; }
}

@media print {
  @page { size: A4; margin: 12mm; }
  body { background: #fff; font-size: 12px; }
  main { padding: 0; max-width: none; }
  .no-print { display: none !important; }
  .print-only { display: block; }
  th.print-only, td.print-only { display: table-cell; }
  .card { border: 0; padding: 0; margin-bottom: 12px; overflow: visible; }
  .panels { display: block; }
  .panels .card { margin-bottom: 16px; }
  .close-tbl input { border: 0; padding: 0; text-align: right; }
  .note-label input { border: 0; border-bottom: 1px dotted #000; border-radius: 0; }
  .tbl th, .tbl td { border-bottom: 1px solid #999; }
  .tbl .strong { color: #000; }
  .sign-col { width: 30mm; }
  .print-head h1 { font-size: 16px; }
  .print-head p { margin: 2px 0 12px; }
  .signs { display: flex; gap: 20mm; margin-top: 18mm; }
  .signs div { flex: 1; border-top: 1px solid #000; text-align: center; padding-top: 2px; }
  .kpis div { border: 1px solid #999; }
}