:root {
  --ink: #1d2525;
  --muted: #66706d;
  --line: #dfe5e2;
  --soft: #f6f8f7;
  --panel: #ffffff;
  --brand: #126a5a;
  --brand-dark: #0b473e;
  --accent: #b7791f;
  --danger: #b42318;
  --ok: #1f7a4d;
  --focus: #2a8f7d;
  --shadow: 0 14px 34px rgba(26, 38, 36, .08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: #eef3f0;
  font-family: Arial, Helvetica, sans-serif;
}

[hidden] {
  display: none !important;
}

.login-screen {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 20px;
}

.login-panel {
  width: min(430px, 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}

.login-brand {
  margin-bottom: 18px;
}

.login-panel h1 {
  margin: 0 0 8px;
  font-size: 28px;
}

.login-panel p {
  color: var(--muted);
}

.login-error {
  min-height: 20px;
  margin: 10px 0 0;
  color: var(--danger);
  font-weight: 700;
}

.login-help {
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: #f9fbfa;
  border-right: 1px solid var(--line);
  padding: 20px 16px;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  min-height: 52px;
  margin-bottom: 24px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
}

.brand-logo {
  width: 50px;
  height: 50px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  font-size: 14px;
  letter-spacing: 0;
}

.brand span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.session-field,
.session-card {
  display: grid;
  gap: 6px;
  margin-bottom: 18px;
  color: #40504c;
  font-size: 13px;
  font-weight: 700;
}

.session-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fff;
}

.session-card span {
  color: var(--muted);
  font-weight: 400;
}

.main-nav {
  display: grid;
  gap: 6px;
}

.nav-button,
.ghost-button,
.primary-button,
.danger-button {
  min-height: 40px;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 9px 13px;
  transition: background .16s ease, border-color .16s ease, color .16s ease;
}

.nav-button {
  width: 100%;
  text-align: left;
  color: #34413e;
  background: transparent;
}

.nav-button:hover,
.nav-button.is-active {
  background: #e5f0ec;
  color: var(--brand-dark);
}

.nav-button.is-active {
  border-color: #b9d7ce;
  font-weight: 700;
}

.main-content {
  min-width: 0;
  padding: 22px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

.topbar h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.1;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

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

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  border: 1px solid #c6d9d3;
  border-radius: 999px;
  padding: 5px 12px;
  color: var(--brand-dark);
  background: #f6fbf9;
  font-size: 13px;
  font-weight: 700;
}

.ghost-button {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}

.ghost-button:hover {
  border-color: #b8c8c2;
  background: #f8faf9;
}

.primary-button {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
  font-weight: 700;
}

.primary-button:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
}

.primary-button:disabled,
.ghost-button:disabled {
  opacity: .45;
  cursor: not-allowed;
}

.danger-button {
  background: #fff;
  border-color: #f2c3bd;
  color: var(--danger);
}

.view {
  display: none;
}

.view.is-active {
  display: block;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.metric,
.panel,
.receipt-paper {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.metric {
  padding: 16px;
  border-left: 4px solid #b7d4ca;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 27px;
}

.quick-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 16px;
}

.quick-actions .ghost-button {
  min-height: 46px;
  text-align: center;
  font-weight: 700;
}

.dashboard-grid,
.work-grid,
.cashier-grid,
.receipts-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, .85fr);
  gap: 16px;
  align-items: start;
}

.panel {
  padding: 16px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-header h2 {
  margin: 0;
  font-size: 18px;
}

.panel-header p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.field,
.field-label {
  display: grid;
  gap: 6px;
  color: #40504c;
  font-size: 13px;
  font-weight: 700;
}

.field-label {
  margin: 10px 0 6px;
}

.text-input,
.number-input,
.text-area,
select {
  width: 100%;
  min-height: 40px;
  border: 1px solid #cfd8d5;
  border-radius: 8px;
  padding: 9px 10px;
  background: #fff;
  color: var(--ink);
}

.text-input:focus,
.number-input:focus,
.text-area:focus,
select:focus,
button:focus-visible {
  outline: 3px solid rgba(42, 143, 125, .2);
  border-color: var(--focus);
}

.text-area {
  min-height: 120px;
  resize: vertical;
}

.compact-area {
  min-height: 96px;
  font-family: inherit;
}

.student-results,
.order-list,
.activity-list,
.breakdown-list {
  display: grid;
  gap: 8px;
}

.student-results {
  max-height: 454px;
  overflow: auto;
  margin-top: 12px;
  padding-right: 4px;
}

.student-context {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  border: 1px solid #c6d9d3;
  border-radius: 8px;
  margin-bottom: 14px;
  padding: 12px;
  background: #f6fbf9;
}

.student-context strong,
.student-context span {
  display: block;
}

.student-context strong {
  font-size: 16px;
}

.student-context-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.compact-empty {
  min-height: 58px;
  width: 100%;
}

.inline-new-student {
  border-top: 1px solid var(--line);
  margin-top: 14px;
  padding-top: 14px;
}

#quickStudentForm {
  margin-top: 12px;
}

.student-row,
.order-row,
.activity-row,
.breakdown-row {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fff;
}

.student-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  text-align: left;
}

.student-row:hover,
.student-row.is-selected {
  border-color: #9fc8bc;
  background: #f4fbf8;
}

.student-main,
.student-meta {
  display: block;
}

.student-main {
  font-weight: 700;
}

.student-meta,
.muted {
  color: var(--muted);
  font-size: 13px;
}

.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 9px;
  color: var(--brand-dark);
  background: #e6f3ee;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.tag.warn {
  color: #7a4c05;
  background: #fff3d7;
}

.tag.danger {
  color: #8b1e16;
  background: #ffe5e1;
}

.concept-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.quote-row,
.order-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}

.quote-row strong,
.order-panel .panel-header strong {
  display: block;
  font-size: 24px;
}

.order-panel {
  margin-top: 16px;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  background: #fff;
}

th,
td {
  padding: 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #f5f8f7;
  color: #3d4b48;
  font-size: 12px;
  text-transform: uppercase;
}

td:last-child,
th:last-child {
  text-align: right;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 120px;
  border: 1px dashed #cbd8d4;
  border-radius: 8px;
  color: var(--muted);
  background: #fbfcfc;
}

.order-row {
  display: grid;
  gap: 10px;
}

.order-row.is-selected {
  border-color: #83b9aa;
  background: #f3fbf8;
  box-shadow: inset 4px 0 0 var(--brand);
}

.order-row-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.order-row strong,
.activity-row strong {
  display: block;
}

.order-row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cashier-details {
  margin-bottom: 12px;
}

.cashier-summary {
  display: grid;
  gap: 8px;
}

.payment-split-panel,
.delivery-panel,
.receipt-send-box {
  display: grid;
  gap: 12px;
  border: 1px solid #d8e5e1;
  border-radius: 8px;
  margin: 12px 0;
  padding: 12px;
  background: #fbfdfc;
}

.payment-split-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: var(--ink);
}

.payment-split-head span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.payment-split-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.ok-text {
  color: var(--ok) !important;
}

.warn-text {
  color: #7a4c05 !important;
}

.danger-text {
  color: var(--danger) !important;
}

.helper-text {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.receipt-send-box {
  margin: 0 0 18px;
  background: #f7fbf9;
}

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

.send-status {
  margin: 10px 0 0;
  font-size: 12px;
  font-weight: 700;
}

.summary-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 7px;
}

.summary-line:last-child {
  border-bottom: 0;
}

.list-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  min-height: 34px;
  margin: 8px 0 10px;
  border: 1px solid #d8e5e1;
  border-radius: 8px;
  padding: 6px 10px;
  color: var(--muted);
  background: #fbfdfc;
  font-size: 13px;
}

.list-summary strong {
  color: var(--ink);
  font-size: 15px;
}

.full-button {
  width: 100%;
  margin-top: 14px;
}

.import-block {
  margin-top: 18px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.import-block h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.import-block p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
}

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

.report-metrics {
  margin-top: 14px;
}

.report-table {
  margin-top: 14px;
}

.cancel-banner {
  border: 2px solid var(--danger);
  border-radius: 8px;
  margin: 12px 0;
  padding: 12px;
  color: var(--danger);
  font-weight: 800;
  text-align: center;
}

.receipt-paper {
  min-height: 620px;
  padding: 24px;
  box-shadow: none;
}

.receipt-empty {
  display: grid;
  place-items: center;
  min-height: 560px;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 8px;
}

.receipt-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 14px;
  margin-bottom: 18px;
}

.receipt-logo {
  width: 74px;
  height: 74px;
  object-fit: contain;
}

.receipt-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.receipt-brand h2 {
  margin: 0;
  font-size: 18px;
}

.receipt-brand p,
.receipt-meta p,
.receipt-total p {
  margin: 3px 0;
  color: var(--muted);
  font-size: 13px;
}

.receipt-meta {
  text-align: right;
}

.receipt-total {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 14px;
  border-top: 2px solid var(--ink);
  margin-top: 18px;
  padding-top: 14px;
}

.receipt-total strong {
  font-size: 28px;
}

.signature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 50px;
}

.signature-line {
  border-top: 1px solid var(--ink);
  padding-top: 8px;
  color: var(--muted);
  text-align: center;
  font-size: 13px;
}

.cost-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.cost-admin-panel,
.admin-config-panel {
  margin-bottom: 16px;
}

.catalog-card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.catalog-card {
  display: grid;
  gap: 9px;
  min-height: 138px;
  border: 1px solid #d4e1dd;
  border-radius: 8px;
  padding: 14px;
  color: var(--ink);
  background: #fff;
  text-align: left;
  box-shadow: 0 10px 24px rgba(26, 38, 36, .06);
}

.catalog-card:hover {
  border-color: #9fc8bc;
  background: #f7fcfa;
}

.catalog-card-title {
  font-weight: 800;
}

.catalog-card-copy {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
}

.catalog-card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  color: var(--brand-dark);
  font-size: 13px;
}

.catalog-card-foot strong {
  border-radius: 999px;
  padding: 4px 9px;
  background: #e6f3ee;
}

.catalog-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 22px;
  background: rgba(16, 27, 25, .46);
}

.catalog-modal-window {
  width: min(1120px, 100%);
  max-height: min(82vh, 820px);
  overflow: auto;
  border: 1px solid #cfded9;
  border-radius: 8px;
  background: #f8fbfa;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .24);
  padding: 18px;
}

.catalog-modal-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 12px;
  padding-bottom: 12px;
}

.catalog-modal-head h2 {
  margin: 0;
  font-size: 22px;
}

.catalog-modal-head p:not(.eyebrow) {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

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

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  font-size: 24px;
  line-height: 1;
}

.icon-button:hover {
  border-color: #b8c8c2;
  background: #f1f6f4;
}

body.modal-open {
  overflow: hidden;
}

.academic-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.editor-rows {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.uniform-editor-tools {
  display: grid;
  grid-template-columns: minmax(220px, 320px) 1fr;
  gap: 12px;
  align-items: end;
  margin-top: 12px;
}

.inventory-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  min-height: 44px;
  border: 1px solid #c6d9d3;
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--brand-dark);
  background: #f6fbf9;
  font-size: 13px;
}

.inventory-summary strong,
.inventory-summary span {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border: 1px solid #dce9e5;
  border-radius: 999px;
  padding: 4px 9px;
  background: #fff;
}

.editor-row {
  display: grid;
  grid-template-columns: repeat(6, minmax(110px, 1fr)) auto;
  gap: 8px;
  align-items: end;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fff;
}

.editor-row.small-row {
  grid-template-columns: repeat(3, minmax(150px, 1fr)) auto;
}

.editor-row.wide-row {
  grid-template-columns: repeat(4, minmax(140px, 1fr)) auto;
}

.editor-row .field-label {
  margin: 0;
}

.cost-section {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
  box-shadow: var(--shadow);
}

.cost-section h2 {
  margin: 0 0 12px;
  font-size: 17px;
}

.cost-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.cost-line:last-child {
  border-bottom: 0;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  display: none;
  max-width: min(380px, calc(100vw - 36px));
  border: 1px solid #b9d7ce;
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--brand-dark);
  background: #f4fbf8;
  box-shadow: var(--shadow);
  font-weight: 700;
}

.toast.is-visible {
  display: block;
}

@media (max-width: 1050px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 16px;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 12px;
  }

  .brand {
    margin-bottom: 0;
    flex: 0 0 auto;
  }

  .main-nav {
    display: flex;
    gap: 8px;
  }

  .nav-button {
    white-space: nowrap;
  }

  .metric-grid,
  .quick-actions,
  .dashboard-grid,
  .work-grid,
  .cashier-grid,
  .receipts-grid,
  .cost-grid,
  .catalog-card-grid,
  .uniform-editor-tools {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .main-content {
    padding: 14px;
  }

  .topbar,
  .topbar-actions,
  .quote-row,
  .order-actions,
  .receipt-total,
  .student-context,
  .receipt-head {
    align-items: stretch;
    flex-direction: column;
  }

  .metric-grid,
  .quick-actions,
  .catalog-card-grid,
  .concept-grid,
  .payment-split-grid,
  .signature-row,
  .editor-row,
  .editor-row.small-row,
  .editor-row.wide-row {
    grid-template-columns: 1fr;
  }

  .topbar h1 {
    font-size: 24px;
  }

  .catalog-modal {
    padding: 10px;
  }

  .catalog-modal-window {
    max-height: 92vh;
    padding: 14px;
  }

  .catalog-modal-head,
  .catalog-modal-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .panel,
  .metric,
  .receipt-paper {
    padding: 13px;
  }
}

@media print {
  body {
    background: #fff;
  }

  .sidebar,
  .topbar,
  .panel,
  .no-print,
  .toast {
    display: none !important;
  }

  .app-shell,
  .main-content,
  .view,
  .receipts-grid {
    display: block !important;
    padding: 0;
  }

  .view:not(#recibosView) {
    display: none !important;
  }

  .receipt-paper {
    min-height: auto;
    border: 0;
    padding: 0;
  }
}