:root {
  --bg: #FFFFFF;
  --surface: #F5F5F7;
  --border: #E5E5EA;
  --text: #111111;
  --muted: #52525B;
  --action: #00A844;
  --action-active: #008A38;
  --font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
  background-color: var(--surface);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

/* Topbar POS */
.pos-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.pos-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.pos-badge {
  background-color: var(--text);
  color: var(--bg);
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  letter-spacing: 0.04em;
}

.pos-brand h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 800;
}

.pos-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.btn-outline {
  height: 42px;
  padding: 0 1rem;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-outline:hover {
  border-color: var(--text);
}

/* Layout POS: Catálogo a la izquierda + Caja Registradora a la derecha */
.pos-workspace {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: start;
}

@media (min-width: 960px) {
  .pos-workspace {
    grid-template-columns: minmax(0, 1fr) 430px;
    padding: 1.25rem;
  }
}

/* Panel Catálogo POS */
.pos-catalog-panel {
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem;
}

.pos-toolbar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.85rem;
}

.pos-search {
  flex: 1 1 240px;
  height: 46px;
  padding: 0 1rem;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background-color: var(--surface);
  font-family: var(--font);
  font-size: 1rem;
  color: var(--text);
}

.pos-search:focus {
  outline: none;
  background-color: var(--bg);
  border-color: var(--text);
}

.pos-filters {
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  scrollbar-width: none;
  margin-bottom: 1rem;
}

.pos-filters::-webkit-scrollbar {
  display: none;
}

.pos-filter-btn {
  flex: 0 0 auto;
  height: 40px;
  padding: 0 1rem;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  background-color: var(--bg);
  color: var(--muted);
  font-family: var(--font);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
}

.pos-filter-btn[aria-pressed="true"] {
  background-color: var(--text);
  border-color: var(--text);
  color: var(--bg);
}

.pos-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .pos-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .pos-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.pos-item-btn {
  text-align: left;
  border: 1.5px solid var(--border);
  border-radius: 14px;
  background-color: var(--bg);
  padding: 0.75rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.5rem;
  font-family: var(--font);
  position: relative;
}

.pos-item-btn:hover {
  border-color: var(--text);
}

.pos-item-btn:active {
  transform: scale(0.98);
}

.pos-item-qty-badge {
  position: absolute;
  top: 0.55rem;
  right: 0.55rem;
  min-width: 28px;
  height: 28px;
  padding: 0 0.45rem;
  border-radius: 999px;
  background-color: var(--action);
  color: #FFFFFF;
  font-size: 0.88rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pos-item-img {
  width: 100%;
  height: 92px;
  object-fit: contain;
}

.pos-item-price {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text);
  margin: 0;
}

.pos-item-name {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.28;
  margin: 0.15rem 0 0 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pos-item-pres {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0.1rem 0 0 0;
}

/* Panel Caja Registradora (Derecha) */
.pos-register {
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.15rem;
  position: sticky;
  top: 4.5rem;
  display: grid;
  gap: 0.9rem;
}

.pos-mode-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
  background-color: var(--surface);
  padding: 0.3rem;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.pos-mode-tab {
  height: 44px;
  border: none;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  font-family: var(--font);
  font-size: 0.92rem;
  font-weight: 800;
  cursor: pointer;
}

.pos-mode-tab[aria-pressed="true"] {
  background-color: var(--text);
  color: var(--bg);
}

.pos-ticket-list {
  max-height: 240px;
  overflow-y: auto;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding-block: 0.5rem;
  display: grid;
  gap: 0.5rem;
}

.pos-ticket-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.94rem;
}

.pos-step {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.pos-step button {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background-color: var(--surface);
  font-size: 1.05rem;
  font-weight: 800;
  cursor: pointer;
}

.pos-fields {
  display: grid;
  gap: 0.65rem;
}

.pos-fields input,
.pos-fields select {
  width: 100%;
  height: 46px;
  padding: 0 0.9rem;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background-color: var(--surface);
  font-family: var(--font);
  font-size: 0.98rem;
  color: var(--text);
}

.pos-fields input:focus,
.pos-fields select:focus {
  outline: none;
  background-color: var(--bg);
  border-color: var(--text);
}

/* Calculadora de Efectivo / Cambio */
.cash-box {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem;
  display: grid;
  gap: 0.55rem;
}

.cash-bills {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
}

.bill-btn {
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background-color: var(--bg);
  font-family: var(--font);
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
}

.bill-btn:hover {
  border-color: var(--text);
}

.change-display {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.02rem;
  font-weight: 800;
  padding-top: 0.25rem;
}

.pos-totals {
  display: grid;
  gap: 0.35rem;
  font-size: 0.96rem;
}

.pos-totals-row {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
}

.pos-totals-row.grand {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text);
  padding-top: 0.25rem;
}

.pos-charge-btn {
  width: 100%;
  height: 58px;
  border: none;
  border-radius: 14px;
  background-color: var(--action);
  color: #FFFFFF;
  font-family: var(--font);
  font-size: 1.08rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.25rem;
}

.pos-charge-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Modales POS */
dialog {
  margin: auto;
  width: min(680px, calc(100% - 1.5rem));
  max-height: 90dvh;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 0;
  background-color: var(--bg);
  color: var(--text);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.18);
}

dialog::backdrop {
  background-color: rgba(0, 0, 0, 0.5);
}

.dialog-head {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dialog-head h2 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
}

.dialog-body {
  padding: 1.25rem;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.kpi-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.85rem;
}

.kpi-card span {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

.kpi-card strong {
  display: block;
  font-size: 1.2rem;
  font-weight: 800;
  margin-top: 0.2rem;
}

/* Formato de impresión para tirilla térmica 80mm */
@media print {
  body * {
    visibility: hidden;
  }
  #receipt-dialog,
  #receipt-dialog * {
    visibility: visible;
  }
  #receipt-dialog {
    position: absolute;
    left: 0;
    top: 0;
    width: 78mm;
    max-width: 78mm;
    border: none;
    box-shadow: none;
    margin: 0;
    padding: 0;
  }
  .no-print {
    display: none !important;
  }
}