/* ===================================================================
   Khata — design tokens
   Inspired by the Indian bahi-khata ledger: ruled paper, ink,
   red cloth binding. Cool paper ground, khata-red used sparingly.
   =================================================================== */
:root {
  --paper: #F2F3F1;
  --card: #FFFFFF;
  --ink: #1B2530;
  --ink-soft: #5A6672;
  --khata: #B23A3A;
  --khata-deep: #8E2626;
  --moss: #1E7A4C;
  --rule: #DDE0DB;
  --rule-strong: #C6CBC3;
  --radius: 10px;
  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
[hidden] { display: none !important; }

h1, h2, h3 { font-family: var(--font-display); margin: 0; }
.view-title { font-size: 1.45rem; font-weight: 700; letter-spacing: -0.01em; }
.section-title {
  font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--ink-soft);
  margin: 22px 0 8px; padding-bottom: 4px;
  border-bottom: 1px solid var(--rule-strong);
}

/* ---------- amounts: the ledger signature ---------- */
.khata-amount {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
.amount-in  { color: var(--moss); }
.amount-out { color: var(--khata); }
.amount-due { color: var(--khata-deep); }

/* ---------- login ---------- */
.login-view {
  min-height: 100dvh; display: grid; place-items: center; padding: 24px;
}
.login-card {
  width: 100%; max-width: 380px; background: var(--card);
  border: 1px solid var(--rule-strong); border-radius: var(--radius);
  padding: 32px 28px;
  border-top: 6px solid var(--khata);
}
.brand-mark {
  font-family: var(--font-display); font-size: 0.95rem; font-weight: 600;
  color: var(--khata); letter-spacing: 0.15em;
}
.login-title { font-size: 2rem; font-weight: 700; margin-top: 2px; }
.login-sub { color: var(--ink-soft); margin: 6px 0 22px; font-size: 0.9rem; }
.register-details { margin-top: 18px; font-size: 0.9rem; }
.register-details summary { cursor: pointer; color: var(--ink-soft); }
.register-details form { margin-top: 12px; }

/* ---------- forms ---------- */
label { display: block; margin-bottom: 12px; font-size: 0.85rem; color: var(--ink-soft); }
input, select {
  display: block; width: 100%; margin-top: 4px;
  padding: 10px 12px; font-size: 0.95rem; color: var(--ink);
  background: var(--card); border: 1px solid var(--rule-strong);
  border-radius: 8px; font-family: inherit;
}
input:focus-visible, select:focus-visible, button:focus-visible {
  outline: 2px solid var(--khata); outline-offset: 1px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-actions { display: flex; gap: 10px; margin-top: 16px; }
.form-error { color: var(--khata-deep); font-size: 0.85rem; margin-top: 10px; }
.inline-form {
  background: var(--card); border: 1px solid var(--rule);
  border-radius: var(--radius); padding: 14px; margin-bottom: 16px;
}
.search-input { margin: 10px 0 14px; }
.search-row { display: flex; gap: 8px; align-items: center; margin: 10px 0 10px; flex-wrap: wrap; }
.search-row .search-input { margin: 0; flex: 1 1 160px; }
.search-row select { margin: 0; width: auto; flex: 0 0 auto; }
.input-with-btn { display: flex; gap: 6px; }
.input-with-btn input { flex: 1; }

/* Compact toolbar of small dropdowns — used where a row of filter chips
   would otherwise wrap across two or three lines (e.g. invoices, with 8
   document types + 3 statuses + a sort order). Cheaper on vertical space
   and reads cleaner than a wall of pill buttons. */
.filter-toolbar {
  display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 14px;
}
.filter-toolbar select {
  margin: 0; width: auto; flex: 1 1 130px;
  font-size: 0.82rem; padding: 8px 10px;
}

.date-range-row {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin: 0 0 14px;
}
.date-range-field {
  display: flex; align-items: center; gap: 6px;
  margin: 0; font-size: 0.78rem; color: var(--ink-soft);
}
.date-range-field input {
  margin: 0; width: auto; font-size: 0.82rem; padding: 6px 8px;
}
.date-range-row #invoice-clear-filters { margin: 0 0 0 auto; }

/* ---------- buttons ---------- */
.btn {
  font-family: var(--font-body); font-size: 0.9rem; font-weight: 600;
  padding: 10px 16px; border-radius: 8px; border: 1px solid transparent;
  cursor: pointer; transition: background 0.15s ease;
}
.btn-primary { background: var(--khata); color: #fff; }
.btn-primary:hover { background: var(--khata-deep); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--rule-strong); }
.btn-ghost:hover { background: #E9EBE7; }
.btn-block { width: 100%; }
.btn-small { padding: 7px 12px; font-size: 0.82rem; }
.btn-danger { background: transparent; color: var(--khata-deep); border-color: var(--khata); }

/* ---------- app shell ---------- */
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; background: var(--card);
  border-bottom: 2px solid var(--khata);
  position: sticky; top: 0; z-index: 5;
}
.topbar-brand { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; }
.topbar-biz { color: var(--ink-soft); font-size: 0.85rem; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

#main { max-width: 760px; margin: 0 auto; padding: 20px 16px 90px; }
.view-head { display: flex; align-items: center; justify-content: space-between; }
.view-head-actions { display: flex; align-items: center; gap: 8px; }

.bottombar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 5;
  display: grid; grid-template-columns: repeat(5, 1fr);
  background: var(--card); border-top: 1px solid var(--rule-strong);
  padding-bottom: env(safe-area-inset-bottom);
}
.nav-btn {
  background: none; border: none; padding: 12px 4px 10px;
  font-size: 0.75rem; font-weight: 600; color: var(--ink-soft);
  cursor: pointer; border-top: 3px solid transparent;
}
.nav-active { color: var(--khata); border-top-color: var(--khata); }

/* ---------- dashboard khata strip ---------- */
.khata-strip {
  background: var(--card); border: 1px solid var(--rule-strong);
  border-radius: var(--radius); margin-top: 14px; overflow: hidden;
}
.khata-cell {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 13px 16px;
  /* the ruled-ledger line */
  border-bottom: 1px solid var(--rule);
}
.khata-cell:last-child { border-bottom: none; }
.khata-label { font-size: 0.85rem; color: var(--ink-soft); }
.khata-cell .khata-amount { font-size: 1.05rem; }

.dash-alerts {
  margin-top: 12px; padding: 10px 14px; font-size: 0.85rem;
  background: #FBEFEA; border: 1px solid #E8C9BE; border-radius: 8px;
  color: var(--khata-deep);
}
.dash-alerts-due { cursor: pointer; }
.dash-alerts-due:hover { background: #F6E2D8; }
.quick-actions { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }

/* ---------- ledger lists ---------- */
.ledger-list {
  background: var(--card); border: 1px solid var(--rule-strong);
  border-radius: var(--radius); overflow: hidden;
}
.ledger-list:empty::after {
  content: "Nothing here yet."; display: block; padding: 20px;
  color: var(--ink-soft); font-size: 0.9rem;
}
.empty-state {
  padding: 30px 24px; text-align: center;
}
.empty-state .ledger-meta {
  margin: 0 0 14px; font-size: 0.85rem; line-height: 1.5;
  color: var(--ink-soft); text-decoration: none;
  max-width: 32em; margin-left: auto; margin-right: auto;
}
.empty-state:has(.ledger-meta:only-child) .ledger-meta { margin-bottom: 0; }

/* ---------- onboarding banner ---------- */
.onboarding-banner {
  background: var(--card); border: 1px solid var(--rule-strong);
  border-radius: var(--radius); padding: 14px 16px; margin-bottom: 14px;
}
.onboard-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 8px; font-size: 0.9rem;
}
.onboard-head .link-btn { margin: 0; }
.onboard-step {
  display: block; width: 100%; text-align: left; background: none;
  border: none; border-top: 1px solid var(--rule); padding: 10px 2px;
  cursor: pointer; font-size: 0.85rem; color: var(--ink);
}
.onboard-step:first-of-type { border-top: none; }
.onboard-step:hover { color: var(--khata-deep); }

/* ---------- dashboard trend chart ---------- */
#dash-trend { margin-top: 16px; }
.trend-chart {
  display: flex; align-items: stretch; gap: 6px;
  padding: 8px 4px 0;
}
.trend-col {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  min-width: 0;
}
.trend-value {
  font-size: 0.65rem; font-weight: 600; color: var(--ink-soft);
  margin-bottom: 4px; white-space: nowrap;
}
.trend-bars {
  width: 100%; height: 70px; display: flex; align-items: flex-end;
  justify-content: center;
}
.trend-bar {
  width: 70%; max-width: 26px; min-height: 2px;
  background: var(--khata); border-radius: 4px 4px 0 0;
  transition: background 0.15s ease;
}
.trend-col:hover .trend-bar { background: var(--khata-deep); }
.trend-label {
  font-size: 0.65rem; color: var(--ink-soft); margin-top: 6px;
}
.ledger-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-bottom: 1px solid var(--rule);
  cursor: pointer;
}
.ledger-row:last-child { border-bottom: none; }
.ledger-row:hover { background: #FAFAF8; }
.ledger-main { flex: 1; min-width: 0; }
.ledger-name { font-weight: 600; font-size: 0.95rem; }
.ledger-meta { font-size: 0.78rem; color: var(--ink-soft); }
.ledger-amt { text-align: right; }
.ledger-amt .khata-amount { display: block; font-size: 0.95rem; }
.ledger-due {
  display: block; font-size: 0.72rem; color: var(--khata-deep);
  margin-top: 3px;
}
.draft-actions { display: flex; gap: 6px; }
.ledger-row-static { cursor: default; }
.status-pill {
  display: inline-block; font-size: 0.68rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em;
  padding: 2px 8px; border-radius: 99px; margin-top: 2px;
}
.pill-PAID { background: #E3F1E9; color: var(--moss); }
.pill-UNPAID { background: #F8E7E2; color: var(--khata-deep); }
.pill-PARTIALLY_PAID { background: #FDF3D7; color: #8A6D1A; }
.pill-PENDING { background: #FDF3D7; color: #8A6D1A; }
.pill-DEPOSITED { background: #E4EEF7; color: #2F5E8C; }
.pill-CLEARED { background: #E3F1E9; color: var(--moss); }
.pill-BOUNCED { background: #F8E7E2; color: var(--khata-deep); }
.pill-ACTIVE { background: #E4EEF7; color: #2F5E8C; }
.pill-CLOSED { background: #E3F1E9; color: var(--moss); }
.tag-pill {
  display: inline-block; font-size: 0.68rem; font-weight: 600;
  padding: 2px 8px; border-radius: 99px; margin-right: 4px;
  background: #EFEAE0; color: var(--ink-soft);
}

/* ---------- inline help ---------- */
.link-btn {
  background: none; border: none; padding: 0; margin: 8px 0 4px;
  font-size: 0.8rem; color: var(--ink-soft); text-decoration: underline;
  cursor: pointer; display: block;
}
.link-btn:hover { color: var(--ink); }
.type-hint {
  margin: -6px 0 14px; padding: 8px 10px; font-size: 0.8rem;
  color: var(--ink-soft); background: #F4F1E9; border-radius: 6px;
}
.report-menu-item {
  display: block; width: 100%; text-align: left; background: none; border: none;
  border-bottom: 1px solid var(--rule); padding: 12px 16px; cursor: pointer; font: inherit;
}
.report-menu-item:last-child { border-bottom: none; }
.report-menu-item:hover { background: #F4F1E9; }
.report-menu-item .ledger-name { margin-bottom: 2px; }

/* ---------- filter chips ---------- */
.filter-row { display: flex; gap: 8px; margin: 12px 0 14px; flex-wrap: wrap; }
.chip {
  font-size: 0.8rem; font-weight: 600; padding: 6px 14px;
  border-radius: 99px; border: 1px solid var(--rule-strong);
  background: var(--card); color: var(--ink-soft); cursor: pointer;
}
.chip-active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- pagination ---------- */
.pagination-row {
  display: flex; align-items: center; justify-content: center; gap: 14px;
  margin: 16px 0 6px;
}
.pagination-row .ledger-meta { margin: 0; white-space: nowrap; }
.pagination-row .btn:disabled { opacity: 0.4; cursor: default; }

/* ---------- searchable combobox (party/item pickers) ---------- */
.combo-wrap { position: relative; }
.combo-list {
  position: absolute; left: 0; right: 0; top: calc(100% + 2px);
  z-index: 20; max-height: 220px; overflow-y: auto;
  background: var(--card); border: 1px solid var(--rule-strong);
  border-radius: 8px; box-shadow: 0 6px 16px rgba(27, 37, 48, 0.14);
}
.combo-row {
  padding: 10px 12px; font-size: 0.9rem; cursor: pointer;
  border-bottom: 1px solid var(--rule);
}
.combo-row:last-child { border-bottom: none; }
.combo-row:hover, .combo-row:active { background: #FAFAF8; }
.combo-row-new { color: var(--khata-deep); font-weight: 600; }
.combo-empty { padding: 10px 12px; font-size: 0.85rem; color: var(--ink-soft); }

/* ---------- invoice form lines ---------- */
.inv-line {
  display: flex; flex-wrap: wrap; gap: 8px;
  align-items: end; padding: 10px 0; border-bottom: 1px dashed var(--rule);
}
.inv-line label { margin-bottom: 0; }
.inv-line .line-item-wrap { flex: 1 1 100%; position: relative; }
.inv-line .line-field { flex: 1 1 68px; min-width: 68px; }
.inv-line .line-remove {
  background: none; border: none; color: var(--khata-deep);
  font-size: 1.1rem; cursor: pointer; padding: 8px;
}
.inv-total-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 14px 16px; margin: 16px 0;
  background: var(--card); border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  font-weight: 600;
}
.inv-total-row .khata-amount { font-size: 1.2rem; }

/* ---------- modal ---------- */
#modal-backdrop {
  position: fixed; inset: 0; background: rgba(27, 37, 48, 0.45);
  display: grid; place-items: end center; z-index: 20;
}
#modal {
  background: var(--card); width: 100%; max-width: 520px;
  border-radius: 14px 14px 0 0; padding: 22px 20px 30px;
  max-height: 88dvh; overflow-y: auto;
}
@media (min-width: 640px) {
  #modal-backdrop { place-items: center; }
  #modal { border-radius: 14px; }
}
.modal-title { font-size: 1.15rem; margin-bottom: 14px; }

/* ---------- GST report table ---------- */
.gst-table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 0.85rem; }
.gst-table th, .gst-table td { padding: 8px 6px; border-bottom: 1px solid var(--rule); text-align: right; }
.gst-table th:first-child, .gst-table td:first-child { text-align: left; }
.gst-table thead th {
  color: var(--ink-soft); font-weight: 600; font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.04em;
}

/* ---------- barcode scan modal ---------- */
#scan-video { width: 100%; border-radius: 8px; background: #000; display: block; }

/* ---------- toast ---------- */
#toast {
  position: fixed; bottom: 76px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: #fff; padding: 10px 18px;
  border-radius: 8px; font-size: 0.85rem; z-index: 30;
}

/* ---------- print: invoice becomes the printable bill ---------- */
@media print {
  body * { visibility: hidden; }
  #modal, #modal * { visibility: visible; }
  #modal { position: absolute; inset: 0; max-width: none; max-height: none; border-radius: 0; }
  #modal .no-print { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}