:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-2: #eef2f7;
  --text: #111827;
  --muted: #667085;
  --border: #d9e1ec;
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --success: #059669;
  --warning: #b45309;
  --danger: #dc2626;
  --sidebar: #101828;
  --sidebar-text: #e5edf8;
  --shadow: 0 18px 50px rgba(15, 23, 42, .08);
}

[data-theme="dark"] {
  --bg: #0f172a;
  --surface: #172033;
  --surface-2: #1f2a40;
  --text: #f8fafc;
  --muted: #aab6c8;
  --border: #334155;
  --sidebar: #090e19;
  --sidebar-text: #f8fafc;
  --shadow: 0 18px 50px rgba(0, 0, 0, .28);
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

a {
  text-decoration: none;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 252px minmax(0, 1fr);
}

.app-shell.auth-shell {
  grid-template-columns: 1fr;
}

.auth-shell .app-main {
  min-height: 100vh;
}

.auth-shell .content-surface {
  min-height: 100vh;
  padding: 0;
}

.app-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 20px;
  background: var(--sidebar);
  color: var(--sidebar-text);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  font-weight: 800;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, #2563eb, #059669);
  font-size: 14px;
}

.app-sidebar .nav {
  margin-top: 28px;
}

.app-sidebar .nav-link {
  color: #cbd5e1;
  border-radius: 8px;
  padding: 11px 12px;
  font-weight: 650;
}

.app-sidebar .nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,.08);
}

.app-main {
  min-width: 0;
}

.topbar {
  min-height: 84px;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
}

.topbar h1,
.panel h2,
.pos-toolbar h2 {
  margin: 0;
  font-weight: 800;
  font-size: 24px;
}

.eyebrow {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-button {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: var(--surface);
}

.content-surface {
  padding: 28px;
}

.panel,
.kpi-card,
.auth-panel,
.narrow-panel,
.cart-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel {
  padding: 20px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.muted {
  color: var(--muted);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.kpi-card {
  padding: 18px;
  min-height: 112px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.kpi-card span {
  color: var(--muted);
  font-weight: 700;
}

.kpi-card strong {
  font-size: 28px;
  line-height: 1;
}

.kpi-card.warn {
  border-color: color-mix(in srgb, var(--warning) 42%, var(--border));
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, .9fr);
  gap: 18px;
}

.chart-panel {
  grid-column: span 2;
}

.chart {
  min-height: 300px;
}

.app-table {
  color: var(--text);
  margin: 0;
}

.app-table th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.activity-list {
  display: grid;
  gap: 10px;
}

.activity-item {
  display: grid;
  grid-template-columns: 52px 92px minmax(0, 1fr);
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.activity-item p {
  margin: 0;
  color: var(--muted);
}

.auth-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-panel,
.narrow-panel {
  width: min(460px, 100%);
  padding: 30px;
}

.auth-brand {
  margin-bottom: 24px;
}

.small-link {
  color: var(--primary);
  font-weight: 700;
}

.pos-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(440px, 500px);
  gap: 18px;
  align-items: start;
}

.pos-products {
  min-width: 0;
}

.pos-toolbar,
.scanner-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.scanner-bar input {
  min-height: 58px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 12px;
}

.product-tile {
  min-height: 132px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  text-align: left;
  color: var(--text);
  background: var(--surface);
  display: grid;
  gap: 8px;
}

.product-tile:hover {
  border-color: var(--primary);
}

.product-tile span {
  color: var(--muted);
  font-size: 13px;
}

.product-tile b {
  color: var(--success);
  font-size: 18px;
}

.cart-panel {
  position: sticky;
  top: 18px;
  padding: 18px;
}

.cart-lines {
  min-height: 260px;
  display: grid;
  align-content: start;
  gap: 10px;
}

.cart-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  align-items: stretch;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
}

.cart-line-main {
  min-width: 0;
}

.cart-line span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.cart-line-tools {
  display: grid;
  grid-template-columns: minmax(132px, 150px) minmax(90px, 1fr);
  gap: 10px;
  align-items: center;
}

.qty-control {
  display: grid;
  grid-template-columns: 34px minmax(54px, 1fr) 34px;
  gap: 4px;
}

.qty-control button,
.qty-control input {
  min-width: 0;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 6px;
  text-align: center;
  color: var(--text);
  background: var(--surface);
}

.line-total {
  justify-self: end;
  white-space: nowrap;
  font-size: 16px;
}

.totals {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 8px;
}

.totals div {
  display: flex;
  justify-content: space-between;
}

.totals div:last-child {
  font-size: 22px;
  color: var(--success);
}

.payment-box {
  margin-top: 16px;
}

.document-mode {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

.mode-button {
  min-height: 42px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: var(--surface);
  font-weight: 750;
}

.mode-button.active {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
}

.customer-panel {
  margin-bottom: 12px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
}

.customer-search {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.customer-results {
  display: grid;
  gap: 6px;
  margin-top: 8px;
}

.customer-result,
.selected-customer {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  text-align: left;
  color: var(--text);
  background: var(--surface);
}

.customer-result span,
.selected-customer span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.selected-customer {
  margin-top: 8px;
  border-color: var(--success);
}

.quick-customer {
  margin-top: 10px;
}

.pos-message {
  min-height: 24px;
  margin-top: 12px;
  color: var(--primary);
  font-weight: 700;
}

.sale-evidence {
  margin-top: 12px;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--success) 45%, var(--border));
  border-radius: 8px;
  background: color-mix(in srgb, var(--success) 8%, var(--surface));
  display: grid;
  gap: 8px;
}

.sale-evidence span {
  color: var(--muted);
}

.sale-evidence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.toast-stack {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 20;
}

.app-toast {
  padding: 12px 14px;
  border-radius: 8px;
  color: #fff;
  background: var(--success);
  box-shadow: var(--shadow);
}

.empty-state {
  min-height: 320px;
  display: grid;
  place-items: center;
  text-align: center;
}

.report-actions {
  display: flex;
  align-items: end;
  gap: 10px;
}

.toolbar-actions,
.row-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: end;
  gap: 8px;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.settings-tile {
  min-height: 132px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
  display: grid;
  gap: 8px;
  align-content: start;
}

.settings-tile:hover {
  border-color: var(--primary);
}

.settings-tile strong {
  font-size: 18px;
}

.settings-tile span {
  color: var(--muted);
}

.receipt-layout {
  max-width: 980px;
  margin: 0 auto;
}

.receipt-header,
.receipt-meta,
.fiscal-box,
.receipt-totals,
.payment-list {
  display: grid;
  gap: 10px;
}

.receipt-header {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  margin-bottom: 16px;
}

.receipt-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 8px;
}

.receipt-meta,
.fiscal-box {
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  margin-bottom: 16px;
}

.receipt-meta div,
.fiscal-box div,
.receipt-totals div,
.payment-list div {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
}

.receipt-meta span,
.fiscal-box span,
.receipt-totals span,
.payment-list span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.fiscal-box strong {
  word-break: break-all;
}

.receipt-totals {
  max-width: 320px;
  margin-left: auto;
  margin-top: 12px;
}

.receipt-totals div,
.payment-list div {
  display: flex;
  justify-content: space-between;
}

.receipt-totals .grand {
  color: var(--success);
  font-size: 18px;
}

.fiscal-summary,
.fiscal-operations,
.form-grid {
  display: grid;
  gap: 12px;
}

.fiscal-summary {
  grid-template-columns: repeat(4, minmax(130px, 1fr));
  margin-bottom: 18px;
}

.fiscal-summary div,
.reference-box,
.fiscal-response {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
}

.fiscal-summary span,
.reference-box span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
  text-transform: uppercase;
}

.fiscal-summary strong {
  font-size: 24px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.status-ok {
  color: #065f46;
  background: color-mix(in srgb, var(--success) 14%, #fff);
}

.status-warn,
.status-pending {
  color: #92400e;
  background: color-mix(in srgb, var(--warning) 14%, #fff);
}

.status-danger {
  color: #991b1b;
  background: color-mix(in srgb, var(--danger) 14%, #fff);
}

.table-sub {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.fiscal-key {
  max-width: 340px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.muted-row {
  opacity: .7;
}

.document-layout {
  display: grid;
  gap: 18px;
}

.xml-view {
  max-height: 560px;
  overflow: auto;
  margin: 0;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: var(--surface-2);
  white-space: pre-wrap;
  word-break: break-word;
}

.fiscal-settings {
  max-width: 1180px;
}

.form-section {
  display: grid;
  grid-template-columns: minmax(220px, .42fr) minmax(0, 1fr);
  gap: 24px;
  padding: 20px 0;
  border-top: 1px solid var(--border);
}

.form-section h3,
.fiscal-response h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 800;
}

.fiscal-operations {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  grid-template-columns: 1fr 1fr;
}

.operation-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.operation-row:has(input[name="Amount"]) {
  grid-template-columns: minmax(110px, 160px) minmax(0, 1fr) auto;
}

.form-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-wide {
  grid-column: span 2;
}

.fiscal-switch {
  align-self: end;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-actions {
  display: flex;
  justify-content: end;
  gap: 8px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

@media print {
  .app-sidebar,
  .topbar,
  .receipt-actions {
    display: none !important;
  }

  .app-shell,
  .signed-shell {
    display: block;
  }

  .content-surface {
    padding: 0;
  }

  .panel {
    border: 0;
    box-shadow: none;
  }
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .app-sidebar {
    position: static;
    height: auto;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-grid,
  .pos-shell {
    grid-template-columns: 1fr;
  }

  .chart-panel {
    grid-column: span 1;
  }

  .cart-panel {
    position: static;
  }
}

@media (max-width: 620px) {
  .content-surface,
  .topbar {
    padding: 16px;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .scanner-bar,
  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .cart-line {
    grid-template-columns: 1fr;
  }

  .cart-line-tools {
    grid-template-columns: 1fr;
  }

  .line-total {
    justify-self: start;
  }

  .fiscal-summary,
  .fiscal-operations,
  .form-section,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .operation-row,
  .operation-row:has(input[name="Amount"]) {
    grid-template-columns: 1fr;
  }

  .grid-wide {
    grid-column: span 1;
  }
}