/* โทนสี: น้ำเงินกระจก/ฟิล์ม — ตั้งใจให้ต่างจากแอปผ้าม่าน (เขียว) ให้แยกออกทันทีว่าเปิดแอปไหนอยู่ */
:root {
  --bg: #f1f5f9; --surface: #ffffff; --surface-2: #e6edf4; --line: #cdd8e3;
  --ink: #17232f; --ink-2: #55677a; --ink-3: #8595a6;
  --accent: #1f5f9a; --accent-ink: #ffffff; --accent-soft: #dbe8f5;
  --warn: #9a6a12; --warn-soft: #f6e9cc; --danger: #a4413a; --danger-soft: #f5e0de; --focus: #1f5f9a;
  --shadow: 0 1px 2px rgba(23,35,47,.06), 0 8px 24px rgba(23,35,47,.06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12181f; --surface: #1a222c; --surface-2: #222c37; --line: #33404e;
    --ink: #e4ebf2; --ink-2: #a6b4c2; --ink-3: #73828f;
    --accent: #7db6ea; --accent-ink: #0e1a26; --accent-soft: #1f3348;
    --warn: #e0b45c; --warn-soft: #3a3020; --danger: #e08a84; --danger-soft: #3a2422; --focus: #7db6ea;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25);
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: "IBM Plex Sans Thai", "Sarabun", "Noto Sans Thai", system-ui, sans-serif; font-size: 15px; line-height: 1.5; font-variant-numeric: tabular-nums; }
h1, h2, h3 { font-family: "Bai Jamjuree", "IBM Plex Sans Thai", system-ui, sans-serif; margin: 0; line-height: 1.2; }
h1 { font-size: 24px; font-weight: 700; } h2 { font-size: 18px; font-weight: 600; } h3 { font-size: 15px; font-weight: 600; }
a { color: var(--accent); }
.loading { padding: 40px; text-align: center; color: var(--ink-3); }

/* ---------- แถบบนสุด ---------- */
.topbar { background: var(--surface); border-bottom: 1px solid var(--line); border-top: 4px solid var(--accent); position: sticky; top: 0; z-index: 5; }
.topbar .in { max-width: 1160px; margin: 0 auto; padding: 8px 20px; display: flex; align-items: center; gap: 6px 14px; flex-wrap: wrap; }
.topbar .brand { font-family: "Bai Jamjuree", sans-serif; font-weight: 700; font-size: 17px; color: var(--accent); text-decoration: none; margin-right: 8px; }
.topbar nav { display: flex; gap: 4px; flex-wrap: wrap; }
.topbar nav a { text-decoration: none; color: var(--ink-2); padding: 6px 10px; border-radius: 6px; font-weight: 500; font-size: 14px; }
.topbar nav a.active { background: var(--accent-soft); color: var(--accent); }
.topbar .me { margin-left: auto; font-size: 13px; color: var(--ink-2); display: flex; gap: 8px; align-items: center; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 20px 20px 140px; display: flex; flex-direction: column; gap: 22px; }
.wrap.narrow { max-width: 440px; padding-top: 48px; }
.muted { color: var(--ink-2); font-size: 13px; }
.hint { color: var(--ink-3); font-size: 12px; }
.empty { color: var(--ink-3); font-size: 14px; padding: 18px; text-align: center; border: 1px dashed var(--line); border-radius: 10px; }
.msg { padding: 10px 14px; border-radius: 8px; font-size: 14px; }
.msg.err { background: var(--danger-soft); color: var(--danger); }
.msg.warn { background: var(--warn-soft); color: var(--warn); }
.msg.ok { background: var(--accent-soft); color: var(--accent); }

/* ---------- ฟอร์ม / ปุ่ม ---------- */
label.f { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--ink-2); font-weight: 500; min-width: 0; }
label.f .u { color: var(--ink-3); font-weight: 400; }
input[type="text"], input[type="number"], input[type="email"], input[type="password"], input[type="search"], select, textarea {
  font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 7px 9px; width: 100%; min-width: 0; font-variant-numeric: tabular-nums;
}
input[type="number"] { text-align: right; }
input:focus-visible, select:focus-visible, button:focus-visible, textarea:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
input.override { border-style: dashed; }
input.changed { border-color: var(--accent); background: var(--accent-soft); }
input.invalid { border-color: var(--danger); background: var(--danger-soft); }
.btn { font: inherit; font-weight: 500; cursor: pointer; border-radius: 6px; padding: 7px 12px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); white-space: nowrap; }
.btn:hover { border-color: var(--ink-3); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.ghost { background: transparent; }
.btn.small { padding: 4px 9px; font-size: 13px; }
.btn.big { padding: 11px 16px; font-size: 16px; font-weight: 600; }
.btn.danger { color: var(--danger); }
.btn.danger.armed { background: var(--danger); color: #fff; border-color: var(--danger); }
.remove { color: var(--ink-3); background: transparent; border: 0; cursor: pointer; font-size: 18px; line-height: 1; padding: 4px 6px; }
.remove:hover { color: var(--danger); }
.row { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; }
.row .grow { flex: 1; min-width: 200px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; }
.card.pad { padding: 14px 16px; }
section.block { display: flex; flex-direction: column; gap: 10px; }
.block-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.chip { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 999px; background: var(--warn-soft); color: var(--warn); font-weight: 600; white-space: nowrap; }
.chip.role { background: var(--accent-soft); color: var(--accent); }
.status { font-size: 12px; color: var(--ink-3); min-height: 18px; }
.status.dirty { color: var(--warn); }
.status.err { color: var(--danger); }

/* ---------- รายการใบ ---------- */
.qlist { display: flex; flex-direction: column; }
.qlist .q { display: grid; grid-template-columns: 1fr auto; gap: 4px 16px; padding: 10px 14px; border-top: 1px solid var(--line); text-decoration: none; color: inherit; }
.qlist .q:first-child { border-top: 0; }
.qlist .q:hover { background: var(--surface-2); }
.qlist .q .name { font-weight: 600; }
.qlist .q .meta { font-size: 12px; color: var(--ink-3); grid-column: 1 / -1; display: flex; gap: 4px 14px; flex-wrap: wrap; }
.qlist .q .amt { font-weight: 600; white-space: nowrap; text-align: right; }

/* ---------- ตาราง (แบบ Excel) ---------- */
.scroll { overflow-x: auto; }
table.grid { width: 100%; border-collapse: collapse; font-size: 14px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
table.grid th { font-size: 12px; font-weight: 600; color: var(--ink-2); text-align: left; padding: 8px 8px; background: var(--surface-2); border-bottom: 1px solid var(--line); white-space: nowrap; }
table.grid td { padding: 5px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.grid tbody tr:last-child td { border-bottom: 0; }
table.grid td.n, table.grid th.n { text-align: right; white-space: nowrap; }
table.grid td.num { color: var(--ink-3); font-weight: 600; font-family: "Bai Jamjuree", sans-serif; text-align: center; width: 34px; }
table.grid td.total { font-weight: 600; }
table.grid input, table.grid select { padding: 5px 7px; font-size: 14px; }
table.grid td.w80 { width: 84px; } table.grid td.w110 { width: 118px; }
table.grid tfoot td { background: var(--surface-2); font-weight: 600; border-top: 2px solid var(--ink); }
table.grid.wide { min-width: 1040px; } table.grid.mid { min-width: 640px; }
table.grid .sub { display: block; font-size: 11px; color: var(--warn); font-weight: 600; }
table.grid .sub.over { color: var(--danger); }
table.grid tr.over td { background: var(--danger-soft); }
table.grid tr.over td.total { color: var(--danger); }
table.grid tr.trace td { background: var(--surface-2); color: var(--ink-2); font-size: 13px; white-space: pre-wrap; line-height: 1.6; padding: 8px 12px 10px 46px; border-bottom: 1px solid var(--line); }
table.grid td.act { white-space: nowrap; }

/* ---------- สรุป ---------- */
.summary { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; }
table.lines { width: 100%; border-collapse: collapse; font-size: 14px; }
table.lines td { padding: 6px 4px; border-bottom: 1px solid var(--line); vertical-align: baseline; }
table.lines td:last-child { text-align: right; font-weight: 500; white-space: nowrap; }
table.lines td.qty { color: var(--ink-2); text-align: right; white-space: nowrap; }
table.lines tr.sum td { border-bottom: 0; border-top: 2px solid var(--ink); font-weight: 700; font-size: 16px; padding-top: 10px; }
.price-box { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; }
.price-box .line { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.price-box .line.big { font-family: "Bai Jamjuree", sans-serif; font-size: 22px; font-weight: 700; border-top: 2px solid var(--ink); padding-top: 10px; }
ul.items { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 4px 16px; font-size: 14px; }
ul.items li { display: flex; justify-content: space-between; gap: 8px; border-bottom: 1px dotted var(--line); padding: 3px 0; }
ul.items li.none { color: var(--ink-3); border: 0; }
@media (max-width: 720px) { .summary { grid-template-columns: 1fr; } }

/* ---------- แถบยอดรวมล่าง ---------- */
.bar { position: fixed; left: 0; right: 0; bottom: 0; background: var(--surface); border-top: 1px solid var(--line); box-shadow: 0 -6px 20px rgba(0,0,0,.08); z-index: 4; }
.bar .in { max-width: 1160px; margin: 0 auto; padding: 8px 20px; display: flex; gap: 12px 28px; align-items: center; flex-wrap: wrap; }
.bar .k { font-size: 12px; color: var(--ink-2); }
.bar .v { font-family: "Bai Jamjuree", sans-serif; font-size: 20px; font-weight: 700; }
.bar .v.accent { color: var(--accent); }
.bar .spacer { flex: 1; }

/* ---------- ตั้งค่า / ผู้ใช้ / ประวัติ ---------- */
.settings-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px 14px; }
.settings-grid h3 { grid-column: 1 / -1; margin-top: 8px; color: var(--ink-2); font-size: 13px; letter-spacing: .04em; }
table.plain { width: 100%; border-collapse: collapse; font-size: 14px; }
table.plain th { text-align: left; font-size: 12px; color: var(--ink-2); padding: 6px 8px; border-bottom: 1px solid var(--line); }
table.plain td { padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.plain tr:last-child td { border-bottom: 0; }
details.box { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; }
details.box summary { cursor: pointer; padding: 10px 14px; font-weight: 600; font-family: "Bai Jamjuree", sans-serif; }
details.box .in { padding: 0 14px 12px; }

@media (prefers-reduced-motion: no-preference) { .btn, input { transition: background-color .12s, border-color .12s; } }

/* ---------- พิมพ์: เฉพาะสรุป ---------- */
@media print {
  .topbar, .bar, .no-print, table.grid td.act, button { display: none !important; }
  body { background: #fff; color: #000; }
  .wrap { padding: 0; gap: 12px; }
  .card { box-shadow: none; }
  .summary { grid-template-columns: 1fr 1fr; }
}