:root {
  --bg: #f4f6f2;
  --card: #ffffff;
  --text: #1c2a1f;
  --muted: #667066;
  --line: #dde3da;
  --brand: #2e7d32;
  --brand-dark: #1f5a23;
  --brand-soft: #e6f2e6;
  --danger: #b3261e;
  --danger-soft: #fdeceb;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121712;
    --card: #1b231c;
    --text: #e6ece6;
    --muted: #9aa69a;
    --line: #2c372d;
    --brand: #5fb765;
    --brand-dark: #7fd085;
    --brand-soft: #1f3322;
    --danger: #ff8a80;
    --danger-soft: #3a1f1d;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Naskh Arabic', 'Geeza Pro', 'Segoe UI', Tahoma, sans-serif;
  font-size: 17px;
  line-height: 1.7;
}

html[lang="en"] body { font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; line-height: 1.5; }

h1, h2 { margin: 0; font-weight: 700; }
h1 { font-size: 1.25rem; }
h2 { font-size: 1.15rem; }

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 10px 16px;
  background: var(--brand); color: #fff;
}
.topbar .who { display: flex; align-items: center; gap: 12px; }
.topbar .btn.ghost { color: #fff; border-color: rgba(255, 255, 255, .5); }

main { max-width: 980px; margin: 0 auto; padding: 16px; display: grid; gap: 16px; }
.farmer, #admin-view { display: grid; gap: 16px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.card.narrow { max-width: 420px; margin: 40px auto; width: 100%; }
.card > h2 { margin-bottom: 12px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }

label { display: grid; gap: 4px; margin-bottom: 12px; font-weight: 600; }
input {
  font: inherit; color: inherit; background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; width: 100%;
}
input:focus-visible, .btn:focus-visible, .icon-btn:focus-visible {
  outline: 2px solid var(--brand); outline-offset: 1px;
}
input[dir="ltr"] { text-align: right; }
html[dir="ltr"] input[dir="ltr"] { text-align: left; }

.grid-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0 12px; align-items: end; }
.grid-form .btn { margin-bottom: 12px; }

.btn {
  font: inherit; font-weight: 600; cursor: pointer;
  padding: 8px 16px; border-radius: 8px;
  border: 1px solid var(--brand); background: var(--card); color: var(--brand);
}
.btn:hover { background: var(--brand-soft); }
.btn.primary { background: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-dark); }
.btn.ghost { border-color: var(--line); color: var(--text); background: transparent; }
.btn.danger { border-color: var(--danger); color: var(--danger); }
.btn.danger:hover { background: var(--danger-soft); }
.btn.sm { padding: 2px 10px; font-size: .9rem; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .6; cursor: progress; }

.error { color: var(--danger); margin: 0 0 8px; min-height: 1.2em; }
.muted { color: var(--muted); }

.banner {
  background: var(--brand-soft); border: 1px solid var(--brand);
  border-radius: 8px; padding: 8px 12px; margin-bottom: 14px;
}

.field { display: grid; gap: 4px; margin-bottom: 14px; font-weight: 400; }
.field-label { font-weight: 600; }
.input-unit { display: flex; align-items: center; gap: 8px; }
.input-unit input { max-width: 260px; }
em { font-style: normal; color: var(--muted); }

.calc-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.calc-row .btn { margin-inline-start: auto; }
.amount {
  font-variant-numeric: tabular-nums; font-weight: 700; font-size: 1.15rem;
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  padding: 4px 12px; min-width: 140px; text-align: left; direction: ltr;
}
.amount.big { font-size: 1.4rem; color: var(--brand); border-color: var(--brand); background: var(--brand-soft); }
.amount.negative { color: var(--danger); border-color: var(--danger); background: var(--danger-soft); }
.result { padding-top: 6px; border-top: 1px dashed var(--line); }
.actions { display: flex; gap: 10px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 8px 10px; text-align: start; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: .9rem; }
td.num { direction: ltr; text-align: right; font-variant-numeric: tabular-nums; }
html[dir="ltr"] td.num { text-align: left; }
td.num.negative { color: var(--danger); }
tr.active { background: var(--brand-soft); }
td .row-actions { display: flex; gap: 6px; }

/* portal chooser */
.portal-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.portal-card {
  font: inherit; color: inherit; text-align: start; cursor: pointer;
  display: flex; flex-direction: column; gap: 4px; padding: 22px 20px;
  background: var(--card); border: 1px solid var(--line); border-inline-start: 5px solid var(--brand);
  border-radius: var(--radius);
}
.portal-card:hover { background: var(--brand-soft); border-color: var(--brand); }
.portal-card:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.portal-name { font-size: 1.25rem; font-weight: 700; color: var(--brand); }
.portal-badge {
  display: inline-block; margin: 0 0 10px; padding: 1px 14px; border-radius: 999px;
  background: var(--brand-soft); color: var(--brand); font-weight: 600; font-size: .9rem;
}

.part-title {
  margin: 20px 0 12px; padding-bottom: 4px; border-bottom: 2px solid var(--brand);
  color: var(--brand); font-size: 1.05rem;
}
.part-title:first-of-type { margin-top: 6px; }
.small { font-size: .85rem; }
.challan p { margin: 2px 0; }
.challan .row-actions { margin: 6px 0; flex-wrap: wrap; }

.customer-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.search { margin-bottom: 12px; max-width: 420px; }

/* dialogs */
dialog {
  border: 1px solid var(--line); border-radius: 12px; padding: 0;
  background: var(--card); color: var(--text);
  width: min(720px, calc(100vw - 24px)); max-height: calc(100vh - 24px);
}
dialog::backdrop { background: rgba(0, 0, 0, .45); }
.dialog-inner { display: flex; flex-direction: column; max-height: calc(100vh - 26px); }
.dialog-inner.small { width: 100%; }
.dialog-head, .dialog-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 18px; }
.dialog-head { border-bottom: 1px solid var(--line); }
.dialog-foot { border-top: 1px solid var(--line); }
.dialog-body { padding: 14px 18px; overflow-y: auto; }
.dialog-total { font-weight: 700; font-size: 1.1rem; }
.dialog-total output { font-variant-numeric: tabular-nums; color: var(--brand); }
.icon-btn { font: inherit; background: none; border: 0; color: var(--muted); font-size: 1.2rem; cursor: pointer; padding: 4px 8px; }

.exp-group { margin-bottom: 18px; }
.exp-group h3 { margin: 0 0 6px; font-size: 1rem; color: var(--brand); }
.exp-row {
  display: grid; grid-template-columns: 1fr minmax(120px, 170px) auto; align-items: center;
  gap: 8px 10px; padding: 6px 0; border-bottom: 1px solid var(--line);
}
.exp-row .label { margin: 0; font-weight: 400; }
.exp-row .no { color: var(--muted); direction: ltr; display: inline-block; min-width: 2.2em; }
.exp-heading { margin: 0 0 6px; font-size: 1rem; color: var(--brand); }
.exp-desc { grid-template-columns: minmax(80px, 1fr) 2fr; }
.exp-row .opt { color: var(--muted); font-size: .8rem; }
.exp-row input { padding: 5px 8px; }

@media (max-width: 560px) {
  body { font-size: 16px; }
  main { padding: 12px; }
  .exp-row { grid-template-columns: 1fr auto; }
  .exp-row .label { grid-column: 1 / -1; }
  .exp-desc { grid-template-columns: 1fr; }
  .amount { min-width: 0; flex: 1; }
  .calc-row .btn { margin-inline-start: 0; width: 100%; }
}

/* ---------- printing ---------- */
#print-area { display: none; }

@media print {
  @page { size: A4; margin: 12mm; }

  /* Only the statement is printed, always dark-on-white whatever the screen theme. */
  html, body { background: #fff !important; color: #000 !important; }
  body > *:not(#print-area) { display: none !important; }
  #print-area {
    display: block; color: #000; background: #fff; font-size: 10.5pt; line-height: 1.4;
    -webkit-print-color-adjust: exact; print-color-adjust: exact;
  }

  .rp-head { border-bottom: 2px solid #000; padding-bottom: 4pt; margin-bottom: 8pt; }
  .rp-head h1 { font-size: 16pt; margin: 0; }
  .rp-portal { margin: 1pt 0 0; font-size: 11.5pt; font-weight: 700; }

  .rp-meta {
    display: grid; grid-template-columns: max-content 1fr max-content 1fr; gap: 3pt 14pt;
    margin: 0 0 9pt; padding: 5pt 10pt; border: 1px solid #777;
  }
  .rp-meta dt { font-weight: 700; }
  .rp-meta dd { margin: 0; }

  .rp-table { width: 100%; border-collapse: collapse; }
  .rp-table td { padding: 2pt 8pt; border: 1px solid #999; vertical-align: top; white-space: normal; }
  .rp-table tr { break-inside: avoid; }
  .rp-table .rp-amt { width: 32%; text-align: end; direction: ltr; font-variant-numeric: tabular-nums; white-space: nowrap; }
  .rp-table .rp-group td { background: #d9d9d9; font-weight: 700; break-after: avoid; }
  .rp-table .rp-subgroup td { background: #efefef; font-weight: 700; break-after: avoid; }
  .rp-table .rp-indent .rp-label { padding-inline-start: 18pt; }
  .rp-table .rp-strong td { font-weight: 700; border-top: 1.5px solid #000; }

  .rp-note { margin: 5pt 0 0; font-size: 9pt; color: #333; break-inside: avoid; }
}