:root {
  --bg: #f5f3ef;
  --card-bg: #ffffff;
  --border: #e4e0d8;
  --text: #2b2926;
  --text-muted: #6b6660;
  --purple: #7c5cc4;
  --purple-dark: #6647a8;
  --purple-light: #d9cdf0;
  --purple-pale: #efe9fb;
  --green: #2f8f4e;
  --red: #c0392b;
  --tab-bg: #efece6;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 32px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 20px;
  margin: 0;
}

header .fecha {
  color: var(--text-muted);
  font-size: 14px;
  text-transform: capitalize;
}

nav.tabs {
  display: flex;
  gap: 12px;
  padding: 16px 32px;
  flex-wrap: wrap;
}

nav.tabs button {
  flex: 1;
  min-width: 120px;
  padding: 14px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--tab-bg);
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

nav.tabs button.active {
  background: var(--purple);
  color: #fff;
  border-color: var(--purple-dark);
}

nav.tabs button:hover:not(.active) {
  background: #e6e2d9;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 32px 64px;
}

.tab-panel {
  display: none;
  flex-direction: column;
  gap: 20px;
}

.tab-panel.active {
  display: flex;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 18px;
  font-size: 17px;
}

.card h3 {
  margin: 0 0 12px;
  font-size: 15px;
  color: var(--text-muted);
}

.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.kpi {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}

.kpi .label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.kpi .value {
  font-size: 24px;
  font-weight: 700;
}

.kpi .value.small {
  font-size: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.field label {
  font-size: 13px;
  color: var(--text-muted);
}

.field input[type="text"],
.field input[type="number"],
.field input[type="search"] {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 15px;
  width: 100%;
  background: #fff;
}

.field input:focus {
  outline: 2px solid var(--purple-light);
  border-color: var(--purple);
}

.row {
  display: grid;
  gap: 14px;
}

.row.cols-2 {
  grid-template-columns: 1fr 1fr;
}

.row.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 8px 0 16px;
  font-size: 14px;
}

.variant-box {
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 12px;
  position: relative;
}

.variant-box .remove-variant {
  position: absolute;
  top: 8px;
  right: 8px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
}

.btn {
  padding: 12px 20px;
  border-radius: 10px;
  border: none;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  background: var(--purple);
  color: #fff;
}

.btn:hover:not(:disabled) {
  background: var(--purple-dark);
}

.btn:disabled {
  background: var(--purple-light);
  color: #fff;
  cursor: not-allowed;
}

.btn.block {
  width: 100%;
}

.btn.secondary {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn.small {
  padding: 6px 12px;
  font-size: 13px;
  border-radius: 8px;
}

.btn.danger {
  background: #fff;
  color: var(--red);
  border: 1px solid #f0c9c2;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th {
  text-align: left;
  padding: 10px 8px;
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 12px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tr:last-child td {
  border-bottom: none;
}

.underline-link {
  text-decoration: underline dotted;
}

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

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.badge.warn {
  background: #fbe6d8;
  color: #b25a12;
}

.badge.ok {
  background: #e2f3e6;
  color: var(--green);
}

.search-wrap {
  position: relative;
}

.search-results {
  position: absolute;
  z-index: 20;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  max-height: 280px;
  overflow-y: auto;
}

.search-results .result {
  padding: 10px 14px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
}

.search-results .result:hover {
  background: var(--purple-pale);
}

.search-results .empty {
  padding: 10px 14px;
  color: var(--text-muted);
  font-size: 14px;
}

.cart {
  margin: 14px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cart-item {
  display: grid;
  grid-template-columns: 1fr 90px 110px 32px;
  gap: 10px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.cart-item input {
  padding: 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  width: 100%;
}

.cart-total {
  display: flex;
  justify-content: flex-end;
  font-size: 26px;
  font-weight: 700;
  margin: 8px 0;
}

.list-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.list-item:last-child {
  border-bottom: none;
}

.list-item .title {
  font-weight: 700;
  font-size: 15px;
}

.list-item .meta {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.list-item .actions {
  display: flex;
  gap: 8px;
}

.list-item .amount {
  font-weight: 700;
  font-size: 16px;
  white-space: nowrap;
}

.toggle-group {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.toggle-group button {
  padding: 6px 14px;
  border: none;
  background: #fff;
  cursor: pointer;
  font-size: 13px;
}

.toggle-group button.active {
  background: var(--purple-pale);
  color: var(--purple-dark);
  font-weight: 700;
}

.top-product {
  margin-bottom: 12px;
}

.top-product .bar-track {
  background: var(--purple-pale);
  border-radius: 6px;
  height: 8px;
  margin-top: 6px;
  overflow: hidden;
}

.top-product .bar-fill {
  background: var(--purple);
  height: 100%;
}

.chart {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 160px;
  border-bottom: 1px dashed var(--border);
  padding-bottom: 4px;
}

.chart .bar {
  flex: 1;
  background: var(--purple);
  border-radius: 2px 2px 0 0;
  min-height: 1px;
}

.chart-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20, 18, 15, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal h2 {
  margin-top: 0;
}

.modal .modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #2b2926;
  color: #fff;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 14px;
  z-index: 200;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.toast.error {
  background: #7a2419;
}

.empty-state {
  color: var(--text-muted);
  font-size: 14px;
  padding: 8px 0;
}

@media (max-width: 720px) {
  .row.cols-2,
  .row.cols-4 {
    grid-template-columns: 1fr;
  }
  nav.tabs {
    padding: 12px 16px;
  }
  main {
    padding: 8px 16px 48px;
  }
  header {
    padding: 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .cart-item {
    grid-template-columns: 1fr;
  }
}