:root {
  --blue: #0b3d91; --blue-d: #072a66; --red: #d71920; --ink: #1b2330; --muted: #667085; --line: #d9dee7;
  --bg: #f3f5f9; --card: #fff; --ok: #137333; --warn: #b26a00; --pen: #0b2a6b;
  --radius: 10px; font-size: 15px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink); background: var(--bg); }
a { color: var(--blue); }
h1 { font-size: 1.45rem; margin: 0; display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
h2 { font-size: 1.02rem; margin: 0 0 .8rem; color: var(--blue-d); }
h3 { font-size: .95rem; margin: 1.2rem 0 .6rem; }
.muted { color: var(--muted); font-weight: normal; }
.small, small { font-size: .82rem; }
.loading { padding: 2rem; color: var(--muted); }
.grow { flex: 1; }
[hidden] { display: none !important; }

/* top bar */
.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 1rem; padding: .55rem 1rem; background: var(--blue); color: #fff; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .6rem; }
.brand b { display: block; letter-spacing: .03em; }
.brand small { display: block; opacity: .8; font-size: .75rem; }
.s-logo { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 6px; background: var(--red); color: #fff; font-weight: 900; font-style: italic; font-size: 1.3rem; }
.top nav { display: flex; gap: .2rem; flex: 1; flex-wrap: wrap; }
.top nav a { color: #dbe6ff; text-decoration: none; padding: .45rem .7rem; border-radius: 6px; }
.top nav a.on, .top nav a:hover { background: rgba(255,255,255,.16); color: #fff; }
.who { display: flex; align-items: center; gap: .6rem; }
.who a { color: #dbe6ff; }
.who select { padding: .35rem; border-radius: 6px; border: 0; }
.branch-chip { background: rgba(255,255,255,.18); padding: .3rem .6rem; border-radius: 99px; font-size: .85rem; }

main { padding: 1rem; max-width: 1280px; margin: 0 auto; }
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin: .4rem 0 1rem; flex-wrap: wrap; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; margin-bottom: 1rem; }
.card.narrow { max-width: 680px; }
.err-card { border-color: #f1b0b0; background: #fff4f4; color: #8a1010; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.three { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.two > .card, .three > .card { margin-bottom: 0; }
.two, .three { margin-bottom: 1rem; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .3rem; padding: .55rem .95rem; border-radius: 8px; border: 1px solid var(--line); background: #fff; color: var(--ink); font: inherit; cursor: pointer; text-decoration: none; white-space: nowrap; }
.btn:hover { border-color: var(--blue); }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.primary:hover { background: var(--blue-d); }
.btn.danger { color: #b42318; border-color: #f1b0b0; }
.btn.ghost { background: transparent; }
.top .btn.ghost { color: #fff; border-color: rgba(255,255,255,.4); }
.btn.sm { padding: .3rem .6rem; font-size: .85rem; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .6; cursor: wait; }

/* forms */
.grid { display: grid; grid-template-columns: 1fr; gap: .7rem; }
.grid.g2 { grid-template-columns: repeat(2, 1fr); }
.grid.g3 { grid-template-columns: repeat(3, 1fr); }
.grid.g4 { grid-template-columns: repeat(4, 1fr); }
.span2 { grid-column: span 2; }
.fld { display: flex; flex-direction: column; gap: .25rem; min-width: 0; }
.fld > span { font-size: .8rem; color: var(--muted); font-weight: 600; }
.fld.end { justify-content: flex-end; }
input, select, textarea { font: inherit; padding: .5rem .6rem; border: 1px solid #c7cfdb; border-radius: 7px; background: #fff; color: var(--ink); width: 100%; min-width: 0; }
input:focus, select:focus, textarea:focus { outline: 2px solid #9db8f0; border-color: var(--blue); }
input:user-invalid, select:user-invalid { border-color: #d92d20; background: #fff6f5; }
input[readonly] { background: #f5f6f8; }
.filters { display: flex; gap: .7rem; align-items: flex-end; flex-wrap: wrap; }
.filters .fld { min-width: 140px; }
.filters .fld.grow { flex: 1; min-width: 220px; }
.tabs { display: flex; gap: .3rem; margin-bottom: 1rem; position: sticky; top: 52px; z-index: 5; background: var(--bg); padding: .3rem 0; overflow-x: auto; }
.tab { padding: .6rem 1rem; border: 1px solid var(--line); border-radius: 8px; background: #fff; font: inherit; cursor: pointer; white-space: nowrap; }
.tab.on { background: var(--blue); color: #fff; border-color: var(--blue); }
.sticky-actions { position: sticky; bottom: 0; display: flex; gap: .7rem; align-items: center; padding: .8rem 1rem; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 -4px 14px rgba(0,0,0,.06); margin-top: 1rem; }
.terms { font-size: .8rem; color: var(--muted); margin: .7rem 0 0; }
.words { margin: -.3rem 0 0; font-style: italic; }
.note-box { background: #eef4ff; border: 1px solid #c9d9fb; padding: .6rem .8rem; border-radius: 8px; margin-bottom: .8rem; }
.note-box.warn { background: #fff7e6; border-color: #f5d18a; }
.amounts { width: 100%; border-collapse: collapse; }
.amounts td { padding: .25rem 0; border-bottom: 1px solid #eef0f4; }
.amounts td:first-child { width: 55%; padding-right: .6rem; }
.amounts input { text-align: right; }
.amounts td:first-child input { text-align: left; }
.amounts tfoot th { text-align: left; padding-top: .6rem; font-size: 1.05rem; }
.checks { display: grid; grid-template-columns: repeat(3, 1fr); gap: .4rem 1rem; margin-bottom: .8rem; }
.chk { display: flex; gap: .5rem; align-items: center; padding: .45rem .6rem; border: 1px solid var(--line); border-radius: 8px; cursor: pointer; }
.chk input { width: 20px; height: 20px; flex: none; }
.chk:has(input:checked) { background: #eef7f0; border-color: #a6d4b2; }
details summary { list-style: none; margin-top: .6rem; }

/* signature */
.sig-wrap { margin-top: .8rem; }
.sig-label { font-size: .8rem; color: var(--muted); font-weight: 600; margin-bottom: .3rem; }
.sig { border: 2px dashed #a9b6cc; border-radius: 10px; background: #fcfdff; max-width: 700px; }
.sig canvas { display: block; width: 100%; aspect-ratio: 7 / 2; touch-action: none; cursor: crosshair; }
.sig-bar { display: flex; justify-content: space-between; align-items: center; padding: .3rem .6rem; border-top: 1px solid var(--line); font-size: .8rem; }

/* tables */
.tbl-wrap { overflow-x: auto; }
.tbl-wrap.short { max-height: 320px; overflow-y: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid #eef0f4; vertical-align: top; }
thead th { font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); background: #f8f9fc; }
table.compact th, table.compact td { padding: .35rem .4rem; }
.r { text-align: right; }
.due { color: #b42318; font-weight: 600; }
tr.link { cursor: pointer; }
tr.link:hover td { background: #f5f8ff; }
tr.cancelled td { color: #98a2b3; text-decoration: line-through; }
td.empty { text-align: center; color: var(--muted); padding: 1.4rem; }
.badge { display: inline-block; font-size: .72rem; font-weight: 700; padding: .15rem .5rem; border-radius: 99px; background: #eef0f4; color: #344054; text-decoration: none; vertical-align: middle; }
.badge.booked { background: #e8f0ff; color: #1849a9; }
.badge.invoiced { background: #fff4e0; color: #93560a; }
.badge.delivered { background: #e6f6ea; color: var(--ok); }
.badge.cancelled { background: #fde8e8; color: #b42318; }
dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: .35rem 1rem; margin: 0; }
dl.kv dt { color: var(--muted); font-size: .85rem; }
dl.kv dd { margin: 0; word-break: break-word; }

/* stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1rem; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: .9rem 1rem; display: flex; flex-direction: column; gap: .2rem; }
.stat > span { font-size: .8rem; color: var(--muted); font-weight: 600; }
.stat b { font-size: 1.35rem; }
.stat small { color: var(--muted); }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 1rem; background: linear-gradient(160deg, var(--blue) 0 45%, var(--bg) 45%); }
.login form { width: 100%; max-width: 380px; display: grid; gap: .9rem; padding: 1.6rem; box-shadow: 0 10px 30px rgba(0,0,0,.12); }
.brand.big b { font-size: 1.1rem; color: var(--blue-d); }
.brand.big small { color: var(--muted); }
.err { color: #b42318; min-height: 1em; margin: 0; }

#toast { position: fixed; left: 50%; bottom: 1.2rem; transform: translate(-50%, 150%); background: #1d2939; color: #fff; padding: .7rem 1.1rem; border-radius: 8px; transition: transform .2s; z-index: 50; max-width: 90vw; }
#toast.show { transform: translate(-50%, 0); }
#toast.err { background: #b42318; }

/* ---------- paper (print) layouts ---------- */
.print-bar { display: flex; gap: .5rem; align-items: center; margin-bottom: 1rem; flex-wrap: wrap; }
.paper { background: #fff; color: #111; margin: 0 auto 1.5rem; padding: 12mm 12mm; box-shadow: 0 2px 16px rgba(0,0,0,.12); font-family: Arial, Helvetica, sans-serif; font-size: 12.5px; position: relative; }
.paper.receipt { width: 210mm; min-height: 148mm; page: receipt; }
.paper.a4 { width: 210mm; min-height: 297mm; }
.paper.void::after { content: "CANCELLED"; position: absolute; inset: 0; display: grid; place-items: center; font-size: 80px; font-weight: 900; color: rgba(215,25,32,.18); transform: rotate(-18deg); pointer-events: none; }
.p-top { display: grid; grid-template-columns: 1fr 2.3fr 1fr; align-items: start; gap: 6px; }
.p-logo { font-weight: 900; font-size: 22px; display: flex; align-items: center; gap: 6px; letter-spacing: .02em; }
.p-logo .s-logo { width: 26px; height: 26px; font-size: 16px; }
.p-co { text-align: center; font-size: 10.5px; font-weight: 600; line-height: 1.35; }
.p-name { font-size: 20px; font-weight: 800; }
.p-dealer { text-align: right; font-weight: 800; font-size: 15px; }
.p-dealer small { display: block; font-size: 10px; font-weight: 500; color: #555; }
.p-row { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; margin: 10px 0 12px; gap: 8px; }
.p-no { font-size: 15px; font-weight: 700; color: #c4161c; }
.p-title { font-size: 17px; font-weight: 800; background: #111; color: #fff; padding: 3px 12px; border-radius: 3px; }
.receipt .p-title { background: none; color: #111; text-decoration: underline; }
.delivery .p-title { background: none; color: #111; text-decoration: underline; }
.tr .p-title { background: none; color: #111; }
.p-right { text-align: right; }
.pv { font-family: "Segoe Print", "Bradley Hand", "Comic Sans MS", cursive; color: var(--pen); font-size: 13.5px; border-bottom: 1px solid #555; flex: 1; padding: 0 6px; min-height: 1.3em; display: inline-block; min-width: 80px; }
.p-lines { display: grid; gap: 12px; margin: 14px 0 18px; }
.p-line { display: flex; align-items: baseline; gap: 8px; }
.p-line i, .p-kv i { white-space: nowrap; font-family: Georgia, serif; font-size: 14px; }
.p-line .pick { font-weight: 700; text-decoration: underline; }
.p-line .strike { text-decoration: line-through; color: #888; }
.p-foot { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; }
.p-amt { display: inline-flex; border: 2px solid #111; border-radius: 10px; font-size: 22px; overflow: hidden; }
.p-amt b { padding: 6px 12px; border-right: 2px solid #111; }
.p-amt span { padding: 6px 18px; min-width: 170px; font-family: "Segoe Print", "Bradley Hand", cursive; color: var(--pen); }
.p-small { font-size: 10.5px; margin-top: 6px; font-weight: 600; }
.p-sign { display: flex; flex-direction: column; align-items: center; gap: 4px; text-align: center; font-weight: 700; }
.p-esign { font-size: 9.5px; font-weight: 500; color: #555; border: 1px dashed #aaa; padding: 4px 8px; border-radius: 4px; min-height: 34px; display: grid; place-items: center; }
.p-sigimg { max-width: 220px; max-height: 64px; }
.p-sigspace { height: 50px; }
.p-signs { display: flex; justify-content: space-between; margin-top: 24px; align-items: flex-end; }
.p-signs .p-sign > div:last-child { border-top: 1px solid #111; padding-top: 3px; min-width: 190px; }
.p-intro { font-size: 12.5px; }
.p-dgrid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 10px 30px; margin: 14px 0 18px; }
.p-kv { display: flex; align-items: baseline; gap: 8px; }
.p-checks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px 26px; border-top: 2px solid #111; padding-top: 14px; }
.p-chk { display: grid; grid-template-columns: 1fr 18px 34px; align-items: center; gap: 6px; margin-bottom: 8px; }
.p-qty { text-align: center; }
.p-box { border: 1.5px solid #111; height: 26px; display: grid; place-items: center; font-size: 18px; color: var(--pen); font-weight: 700; }
.p-boxes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px 18px; }
.p-box2 { display: grid; grid-template-columns: 80px 1fr; align-items: center; }
.p-box2 .pv { border: 1px solid #111; min-height: 24px; padding: 2px 6px; }
.p-box2 i { font-style: normal; font-size: 13px; }
.p-cust { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; margin: 14px 0; }
.p-2col { display: grid; grid-template-columns: 1fr 1.25fr; gap: 14px; margin-bottom: 12px; }
table.pt { border-collapse: collapse; width: 100%; }
table.pt th, table.pt td { border: 1px solid #222; padding: 3px 6px; font-size: 11.5px; height: 21px; }
table.pt thead th { background: none; color: #111; text-transform: none; font-size: 12.5px; letter-spacing: 0; }
table.pt td:nth-child(n+2) { font-family: "Segoe Print", "Bradley Hand", cursive; color: var(--pen); }
table.pt tr.tot td { font-weight: 700; font-family: Arial, sans-serif; color: #111; }
table.pt tr.tot td.r { color: var(--pen); }
table.pt td.sno { width: 40px; text-align: center; font-family: Arial, sans-serif; color: #111; }
table.trt td:nth-child(2) { font-family: Arial, sans-serif; color: #111; width: 42%; }
table.trt td { height: 25px; }
table.trt tr.sec td { text-align: center; font-weight: 800; font-family: Arial, sans-serif; color: #111; font-size: 13px; }
.p-upi { border: 1px solid #222; border-top: 0; padding: 4px 6px; min-height: 40px; font-family: "Segoe Print", cursive; color: var(--pen); }
.p-upi i { font-family: Arial, sans-serif; font-style: normal; font-weight: 700; color: #111; font-size: 10px; }
.p-terms { border: 1px solid #222; padding: 5px 8px; font-size: 10.5px; line-height: 1.45; }
.p-note { border: 1px solid #222; padding: 5px 8px; min-height: 48px; margin-top: 6px; }

@page { size: A4; margin: 0; }
@page receipt { size: A5 landscape; margin: 0; }
@media print {
  body { background: #fff; }
  .no-print, .top, .print-bar, #toast { display: none !important; }
  main { padding: 0; max-width: none; }
  .paper { box-shadow: none; margin: 0; break-after: page; }
  .paper:last-child { break-after: auto; }
  .paper.receipt { width: 210mm; height: 148mm; min-height: 0; overflow: hidden; }
  .paper.a4 { height: 297mm; min-height: 0; overflow: hidden; }
  * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}

/* responsive */
@media (max-width: 1000px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .three { grid-template-columns: 1fr; }
  .grid.g4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  main { padding: .7rem; }
  .two { grid-template-columns: 1fr; }
  .grid.g2, .grid.g3, .grid.g4 { grid-template-columns: 1fr; }
  .span2 { grid-column: auto; }
  .checks { grid-template-columns: 1fr 1fr; }
  .top nav { order: 3; flex-basis: 100%; overflow-x: auto; flex-wrap: nowrap; }
  .tabs { top: 0; }
  .paper { transform-origin: top left; }
}
@media screen and (max-width: 860px) {
  .paper.receipt, .paper.a4 { width: 100%; min-height: 0; padding: 14px; }
  .p-top { grid-template-columns: 1fr; text-align: center; }
  .p-dealer, .p-logo { text-align: center; justify-content: center; }
  .p-2col, .p-dgrid, .p-checks, .p-boxes { grid-template-columns: 1fr; }
}

/* workflow strip: 1 Booking (Sales) -> 2 Receipt (Cashier) -> 3 Delivery challan (Cashier) */
.flow { display: flex; align-items: center; gap: .5rem; margin-bottom: 1rem; flex-wrap: wrap; }
.flow .arrow { color: var(--muted); font-size: 1.2rem; }
.step { display: flex; align-items: center; gap: .6rem; background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: .5rem .9rem; flex: 1; min-width: 170px; }
.step b { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: #eef0f4; color: var(--muted); flex: none; }
.step small { display: block; color: var(--muted); font-size: .75rem; }
.step.mine { border-color: #9db8f0; }
.step.done b { background: #e6f6ea; color: var(--ok); }
.step.now { border-color: var(--blue); box-shadow: 0 0 0 2px #dbe6ff; }
.step.now b { background: var(--blue); color: #fff; }
@media (max-width: 760px) { .flow .arrow { display: none; } }

/* price list editor */
table.prices input { padding: .3rem .4rem; font-size: .85rem; }
table.prices td, table.prices th { white-space: nowrap; }