:root {
  --bg: #eef2f5; --card: #ffffff; --ink: #13202b; --muted: #5d6b78; --line: #d5dde4;
  --brand: #0f2a3d; --brand-ink: #ffffff; --accent: #e8922a; --accent-ink: #1d1206;
  --ok: #1d7a46; --ok-bg: #e2f4ea; --warn: #9a5b00; --warn-bg: #fdf0da; --bad: #b42318; --bad-bg: #fde8e6;
  --info-bg: #e5eef7; --shadow: 0 1px 2px rgba(15, 42, 61, .08), 0 4px 14px rgba(15, 42, 61, .06);
  --radius: 14px; --font: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --ur: "Noto Nastaliq Urdu", "Jameel Noori Nastaleeq", "Noto Naskh Arabic", "Segoe UI", Tahoma, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1620; --card: #13212d; --ink: #e6edf3; --muted: #9aabb9; --line: #263847;
    --brand: #0a1d2b; --accent: #f2a33a; --ok: #5cd08e; --ok-bg: #133325; --warn: #f2b35a; --warn-bg: #3a2a10;
    --bad: #ff8a80; --bad-bg: #3d1a17; --info-bg: #182c3d; --shadow: 0 1px 2px rgba(0,0,0,.4);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1620; --card: #13212d; --ink: #e6edf3; --muted: #9aabb9; --line: #263847;
  --brand: #0a1d2b; --accent: #f2a33a; --ok: #5cd08e; --ok-bg: #133325; --warn: #f2b35a; --warn-bg: #3a2a10;
  --bad: #ff8a80; --bad-bg: #3d1a17; --info-bg: #182c3d; --shadow: 0 1px 2px rgba(0,0,0,.4);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 16px/1.45 var(--font); -webkit-text-size-adjust: 100%; min-height: 100vh; }
html[lang="ur"] body { font-family: var(--ur); line-height: 1.9; }
button, input, select, textarea { font: inherit; color: inherit; }
.num, .mono { font-variant-numeric: tabular-nums; font-family: var(--font); }

/* top bar */
.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 8px; padding: 10px 16px; padding-top: max(10px, env(safe-area-inset-top));
  background: var(--brand); color: var(--brand-ink); }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: .2px; flex: 1; min-width: 0; }
.brand span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-family: var(--font); }
.topactions { display: flex; gap: 6px; align-items: center; }
.iconbtn { background: transparent; border: 0; color: inherit; width: 40px; height: 40px; border-radius: 10px; font-size: 20px; cursor: pointer; }
.iconbtn:hover { background: rgba(255,255,255,.1); }
.chip { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25); color: inherit; border-radius: 999px; padding: 4px 12px; cursor: pointer; font-size: 14px; }

main { max-width: 760px; margin: 0 auto; padding: 16px 16px 96px; outline: none; }
h1 { font-size: 22px; margin: 4px 0 14px; }
h2 { font-size: 17px; margin: 18px 0 8px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.right { text-align: end; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row > * { flex: 1 1 140px; }
.spacer { flex: 1; }

/* home grid */
.hello { margin: 2px 0 14px; }
.hello b { font-size: 20px; }
.grid6 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.bigbtn { display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between; gap: 18px; min-height: 124px; padding: 16px;
  border-radius: var(--radius); border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow); cursor: pointer; text-align: start; }
.bigbtn:active { transform: scale(.98); }
a.bigbtn { text-decoration: none; color: inherit; }
.bigbtn .ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--info-bg); color: var(--brand); }
:root[data-theme="dark"] .bigbtn .ico { color: var(--accent); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .bigbtn .ico { color: var(--accent); } }
.bigbtn .ico svg { width: 26px; height: 26px; }
.bigbtn .lbl { font-weight: 650; font-size: 17px; line-height: 1.25; }
.bigbtn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.bigbtn.primary .ico { background: rgba(255,255,255,.35); color: var(--accent-ink); }
@media (min-width: 640px) { .grid6 { grid-template-columns: repeat(3, 1fr); } }

/* cards, forms */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow); margin-bottom: 12px; }
.card.flat { box-shadow: none; }
label { display: block; font-size: 14px; color: var(--muted); margin: 10px 0 4px; }
input, select, textarea { width: 100%; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); min-height: 46px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
textarea { min-height: 70px; resize: vertical; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 12px 18px; min-height: 46px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--card); cursor: pointer; font-weight: 600; text-decoration: none; color: inherit; }
.btn.primary { background: var(--brand); color: #fff; border-color: var(--brand); }
:root[data-theme="dark"] .btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); } }
.btn.ok { background: var(--ok); color: #fff; border-color: var(--ok); }
.btn.bad { background: transparent; color: var(--bad); border-color: var(--bad); }
.btn.sm { padding: 6px 12px; min-height: 36px; font-size: 14px; }
.btn.block { width: 100%; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }
.seg { display: flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.seg button { flex: 1; padding: 12px; border: 0; background: var(--card); cursor: pointer; font-weight: 600; }
.seg button.on { background: var(--brand); color: #fff; }
.actions { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.actions > .btn { flex: 1 1 auto; }

/* lists */
.list { list-style: none; margin: 0; padding: 0; }
.list li { padding: 12px 4px; border-bottom: 1px solid var(--line); display: flex; gap: 10px; align-items: center; }
.list li:last-child { border-bottom: 0; }
.list li.tap { cursor: pointer; }
.list li.tap:hover { background: var(--info-bg); }
.list .main { flex: 1; min-width: 0; }
.list .t { font-weight: 600; overflow-wrap: anywhere; }
.list .s { font-size: 13px; color: var(--muted); overflow-wrap: anywhere; }
.list .v { text-align: end; white-space: nowrap; font-variant-numeric: tabular-nums; }
.dropdown { border: 1px solid var(--line); border-radius: 10px; margin-top: 4px; max-height: 320px; overflow: auto; background: var(--card); }
.dropdown li { padding: 10px 12px; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--info-bg); color: var(--ink); white-space: nowrap; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin-bottom: 12px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.stat .k { font-size: 13px; color: var(--muted); }
.stat .n { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; font-family: var(--font); }
.stat.hl { border-color: var(--accent); }

.selected { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--accent); border-radius: 10px; background: var(--info-bg); }
.selected .main { flex: 1; min-width: 0; }

.lines .line { border: 1px solid var(--line); border-radius: 10px; padding: 10px; margin-bottom: 8px; }
.lines .line .row > * { flex: 1 1 70px; }
.lines .line input { min-height: 40px; padding: 8px; }
.total { display: flex; justify-content: space-between; font-size: 20px; font-weight: 700; padding: 10px 2px; }

.receipt { text-align: center; padding: 22px 14px; }
.receipt .ref { font-size: 26px; font-weight: 800; letter-spacing: .5px; margin: 6px 0; font-family: var(--font); }
.okmark { width: 56px; height: 56px; border-radius: 50%; background: var(--ok); color: #fff; display: grid; place-items: center; font-size: 30px; margin: 0 auto 8px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 8px 6px; border-bottom: 1px solid var(--line); text-align: start; vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .3px; }
td.n, th.n { text-align: end; white-space: nowrap; font-variant-numeric: tabular-nums; font-family: var(--font); }
.tablewrap { overflow-x: auto; margin: 0 -14px; padding: 0 14px; }

.tabs { display: flex; gap: 6px; overflow-x: auto; margin: 0 -16px 12px; padding: 2px 16px; scrollbar-width: none; }
.tabs button { flex: 0 0 auto; border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 8px 14px; cursor: pointer; font-weight: 600; font-size: 14px; }
.tabs button.on { background: var(--brand); color: #fff; border-color: var(--brand); }
.tabs .cnt { display: inline-block; min-width: 20px; padding: 0 6px; margin-inline-start: 6px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-size: 12px; }

.alert { padding: 10px 12px; border-radius: 10px; margin-bottom: 10px; font-size: 14px; }
.alert.bad { background: var(--bad-bg); color: var(--bad); }
.alert.warn { background: var(--warn-bg); color: var(--warn); }
.alert.ok { background: var(--ok-bg); color: var(--ok); }
.alert.info { background: var(--info-bg); }

#toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(120px); background: #13202b; color: #fff; padding: 12px 18px; border-radius: 12px;
  max-width: calc(100% - 32px); transition: transform .25s; z-index: 50; box-shadow: 0 6px 24px rgba(0,0,0,.25); }
#toast.show { transform: translateX(-50%) translateY(0); }
#toast.bad { background: var(--bad); }

.modal { position: fixed; inset: 0; background: rgba(5, 12, 18, .55); z-index: 40; display: flex; align-items: flex-end; justify-content: center; }
.modal[hidden] { display: none; }
.sheet { background: var(--card); width: 100%; max-width: 560px; border-radius: 18px 18px 0 0; padding: 18px 16px calc(18px + env(safe-area-inset-bottom)); max-height: 90vh; overflow: auto; }
@media (min-width: 640px) { .modal { align-items: center; } .sheet { border-radius: 18px; } }
.sheet img.slip { width: 100%; border-radius: 10px; border: 1px solid var(--line); }

.login { max-width: 400px; margin: 8vh auto 0; }
.login .logo { display: block; margin: 0 auto 10px; width: 84px; height: 84px; }
.login h1 { text-align: center; }
.empty { text-align: center; color: var(--muted); padding: 24px 8px; }
.spin { display: inline-block; width: 18px; height: 18px; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: sp .8s linear infinite; vertical-align: middle; }
@keyframes sp { to { transform: rotate(360deg); } }
.hidden { display: none !important; }
.print-only { display: none; }

@media print {
  .top, .noprint, #toast, .modal { display: none !important; }
  body { background: #fff; color: #000; }
  main { max-width: none; padding: 0; }
  .card { border: 0; box-shadow: none; padding: 0; }
  .print-only { display: block; }
  .tablewrap { overflow: visible; margin: 0; padding: 0; }
  th, td { border-color: #999; }
}
.mt { margin-top: 10px; }
.mb0 { margin-bottom: 0; }
.cb { width: auto; min-height: 0; flex: 0 0 auto; }

/* sync bar (online / offline / waiting to send) */
.syncbar { position: sticky; top: 60px; z-index: 9; display: flex; align-items: center; gap: 8px; padding: 6px 16px; font-size: 13px; background: var(--info-bg); border-bottom: 1px solid var(--line); }
.syncbar[hidden] { display: none; }
.syncbar.warn { background: var(--warn-bg); color: var(--warn); }
.syncbar.off { background: var(--bad-bg); color: var(--bad); }
.syncbar .grow { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.syncbar .btn.sm { min-height: 30px; padding: 4px 10px; font-size: 13px; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: #9aa6b1; vertical-align: middle; flex: 0 0 auto; }
.dot.on { background: #22a55b; box-shadow: 0 0 0 3px rgba(34,165,91,.2); }
.seg.wrap { flex-wrap: wrap; }
.seg.wrap button { flex: 1 1 45%; }
@media (min-width: 520px) { .seg.wrap button { flex: 1 1 0; } }
.chip.dark { background: var(--accent); color: var(--accent-ink); border-color: transparent; font-size: 13px; margin-inline-start: 6px; }
.badtxt { color: var(--bad); font-weight: 700; }
.mb { margin-bottom: 12px; }
.permgrid { display: grid; grid-template-columns: 1fr; gap: 2px; }
@media (min-width: 520px) { .permgrid { grid-template-columns: 1fr 1fr; } }
.permgrid label.row { margin: 4px 0; color: var(--ink); flex-wrap: nowrap; }
.permgrid label.row > span { flex: 1 1 auto; }
.list .t.unread { color: var(--ink); }
.list .t.unread::before { content: ''; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-inline-end: 6px; vertical-align: middle; }
table.staff td { white-space: nowrap; }
table.staff tr.tap { cursor: pointer; }
table.staff tr.tap:hover td { background: var(--info-bg); }
.badge.info { background: var(--info-bg); color: var(--ink); }
.v .btn.sm { margin-top: 4px; }
textarea.mono { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; }
@media (min-width: 1000px) { main { max-width: 1100px; } }
@media print { .syncbar { display: none !important; } }
#toast:not(.show) { visibility: hidden; }
.tablewrap td:first-child, .tablewrap td.mono { white-space: nowrap; }