/* 
  Minimercado Colombia - Professional UI Design
  Senior Frontend Implementation
*/

:root {
  /* Color Palette */
  --verde-main: #1a472a;
  --verde-light: #2d6a4f;
  --verde-soft: #d8f3dc;
  --amarillo-accent: #f5a623;
  --rojo-alert: #e74c3c;
  --rojo-soft: #fff5f5;
  --fondo: #f5f5f5;
  --blanco: #ffffff;
  --texto: #333333;
  --texto-light: #666666;
  --borde: #e0e0e0;
  --borde-dark: #d0d0d0;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.12);
  
  /* Transitions */
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout Constants */
  --sidebar-width: 240px;
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--texto);
  background: var(--fondo);
  display: flex;
  min-height: 100vh;
  overflow: hidden; /* Main scroll is in content area */
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--verde-main);
  color: var(--blanco);
  padding: 2rem 1.25rem;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 100;
  box-shadow: 4px 0 15px rgba(0,0,0,0.1);
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  padding: 0 0.5rem;
}

.logo-emoji {
  font-size: 1.75rem;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #ffffff, var(--amarillo-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
  padding: 0.85rem 1.25rem;
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  text-align: left;
  cursor: pointer;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--blanco);
  transform: translateX(4px);
}

.nav-item.activo {
  background: rgba(255, 255, 255, 0.15);
  color: var(--blanco);
  font-weight: 600;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.1);
}

.nav-icon {
  font-size: 1.25rem;
}

.sidebar-footer {
  margin-top: auto;
  padding: 1rem 0.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
}

/* Main Content */
.contenido {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
  height: 100vh;
  position: relative;
}

.seccion {
  display: none;
  animation: fadeIn 0.4s ease;
}

.seccion.activa {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Headers */
.section-header {
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-header h2 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--verde-main);
}

.section-desc {
  color: var(--texto-light);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

/* Layout Container for Sections */
.card-container {
  background: var(--blanco);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--borde);
}

/* Caja Layout */
.caja-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 1.5rem;
  align-items: start;
}

/* Carrito */
.caja-carrito {
  background: var(--blanco);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 10rem);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--borde);
  position: sticky;
  top: 0;
  overflow: hidden;
}

.panel-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--borde);
}

.panel-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--verde-main);
}

.carrito-lista {
  flex: 1;
  overflow-y: auto;
  padding: 0 1.5rem;
  min-height: 120px;
}

.carrito-item {
  display: flex;
  flex-direction: column;
  padding: 1rem 0;
  border-bottom: 1px dashed var(--borde);
}

.item-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.item-nombre {
  font-weight: 600;
  font-size: 0.95rem;
}

.item-controles {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-mas, .btn-menos {
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--verde-main);
  background: transparent;
  color: var(--verde-main);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  transition: var(--transition);
}

.btn-mas:hover, .btn-menos:hover {
  background: var(--verde-main);
  color: var(--blanco);
}

.item-cantidad {
  font-weight: 700;
  min-width: 20px;
  text-align: center;
}

.item-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.btn-quitar {
  background: transparent;
  border: none;
  color: var(--rojo-alert);
  font-size: 0.8rem;
  cursor: pointer;
  font-weight: 500;
  padding: 0.25rem 0;
}

.btn-quitar:hover {
  text-decoration: underline;
}

.item-subtotal {
  font-weight: 700;
  color: var(--verde-main);
}

/* Carrito Footer */
.carrito-footer {
  padding: 1.25rem;
  background: var(--rojo-soft);
  border-top: 1px solid var(--borde);
  border-radius: 0 0 16px 16px;
  flex-shrink: 0;
  overflow-y: auto;
  max-height: 50%;
}

.carrito-resumen {
  margin-bottom: 1.25rem;
}

.resumen-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--texto-light);
}

.resumen-row.total {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 2px solid var(--verde-soft);
  color: var(--verde-main);
  font-weight: 800;
  font-size: 1.25rem;
}

.total-grande {
  color: var(--verde-main);
}

/* Payment Methods */
.pago-container {
  margin-bottom: 1.25rem;
}

.pago-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--texto-light);
  margin-bottom: 0.75rem;
}

.metodos-pago {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.metodo-pago-btn {
  padding: 0.65rem 0.5rem;
  background: var(--blanco);
  border: 1.5px solid var(--borde);
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: var(--transition);
}

.metodo-pago-btn.activo {
  border-color: var(--verde-main);
  background: var(--verde-soft);
  color: var(--verde-main);
  font-weight: 700;
  box-shadow: 0 4px 10px rgba(26,71,42,0.1);
}

/* Cash Payment Section */
.seccion-efectivo {
  background: var(--blanco);
  padding: 1rem;
  border-radius: 12px;
  margin-bottom: 1.25rem;
  border: 1.5px solid var(--verde-soft);
}

.efectivo-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.input-group label {
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  display: block;
}

.input-wrapper {
  display: flex;
  align-items: center;
  background: var(--fondo);
  border: 1px solid var(--borde);
  border-radius: 8px;
  padding: 0 0.75rem;
}

.currency-prefix {
  color: var(--texto-light);
  font-weight: 600;
}

.input-wrapper input {
  background: transparent;
  border: none;
  padding: 0.65rem 0.5rem;
  width: 100%;
  font-size: 1rem;
  font-weight: 700;
  outline: none;
}

.vuelto-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.5rem;
  border-top: 1px solid var(--verde-soft);
}

.vuelto-label {
  font-size: 0.85rem;
  font-weight: 600;
}

.vuelto-valor {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--verde-main);
}

/* Action Button */
.btn-cobrar {
  width: 100%;
  padding: 1.15rem;
  background: var(--verde-main);
  color: var(--blanco);
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  box-shadow: 0 8px 20px rgba(26,71,42,0.25);
  transition: var(--transition);
}

.btn-cobrar:hover:not(:disabled) {
  background: var(--verde-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(26,71,42,0.3);
}

.btn-cobrar:active:not(:disabled) {
  transform: translateY(0);
}

.btn-cobrar:disabled {
  background: var(--borde-dark);
  cursor: not-allowed;
  box-shadow: none;
}

/* Products Panel */
.caja-productos {
  background: transparent;
  display: flex;
  flex-direction: column;
}

.input-busqueda {
  width: 100%;
  padding: 1rem 1.5rem;
  border: 2px solid var(--blanco);
  border-radius: 14px;
  font-size: 1rem;
  box-shadow: var(--shadow-md);
  outline: none;
  transition: var(--transition);
}

.input-busqueda:focus {
  border-color: var(--verde-main);
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.productos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 1.25rem;
  padding: 0.5rem 0;
  margin-top: 1.5rem;
}

.producto-card {
  background: var(--blanco);
  border-radius: 16px;
  padding: 1.25rem;
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.producto-card:hover:not(.sin-stock) {
  transform: translateY(-5px);
  border-color: var(--verde-main);
  box-shadow: var(--shadow-lg);
}

.producto-nombre {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--texto);
  min-height: 2.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.producto-precio {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--verde-main);
}

.producto-stock {
  font-size: 0.8rem;
  color: var(--texto-light);
  background: var(--fondo);
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  display: inline-block;
  align-self: center;
}

.producto-card.sin-stock {
  opacity: 0.5;
  cursor: not-allowed;
  background: #fdfdfd;
}

/* Inventory Section */
.inventario-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.search-wrapper {
  position: relative;
  flex: 1;
  min-width: 300px;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--texto-light);
}

.input-busqueda-alt {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  border: 1.5px solid var(--borde);
  border-radius: 10px;
  outline: none;
  transition: var(--transition);
}

.input-busqueda-alt:focus {
  border-color: var(--verde-main);
  box-shadow: 0 0 0 4px var(--verde-soft);
}

.filter-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.filter-wrapper label {
  font-size: 0.9rem;
  font-weight: 600;
}

.select-filtro {
  padding: 0.75rem 2rem 0.75rem 1rem;
  border: 1.5px solid var(--borde);
  border-radius: 10px;
  background-color: var(--blanco);
  outline: none;
  cursor: pointer;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--borde);
}

.tabla-inventario, .tabla-historial {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.tabla-inventario th, .tabla-historial th {
  background: var(--verde-main);
  color: var(--blanco);
  padding: 1.25rem 1rem;
  text-align: left;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

.tabla-inventario td, .tabla-historial td {
  padding: 1rem;
  border-bottom: 1px solid var(--borde);
  vertical-align: middle;
}

.tabla-inventario tr:nth-child(even) {
  background-color: #f9fafb;
}

.tabla-inventario tr:hover {
  background-color: #f3f4f6;
}

.tabla-inventario tr.stock-bajo td {
  background-color: #fff1f2;
}

.badge-alerta {
  background: var(--rojo-alert);
  color: var(--blanco);
  font-size: 0.7rem;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.text-center { text-align: center; }

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.stat-card {
  background: var(--blanco);
  padding: 1.5rem;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--borde);
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.stat-icon-bg {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.stat-icon-bg.sales { background: #e0f2fe; }
.stat-icon-bg.revenue { background: #dcfce7; }
.stat-icon-bg.method { background: #fef9c3; }
.stat-icon-bg.stock { background: #fee2e2; }

.stat-label {
  font-size: 0.85rem;
  color: var(--texto-light);
  font-weight: 500;
}

.stat-valor {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--verde-main);
}

.stat-card.alerta .stat-valor {
  color: var(--rojo-alert);
}

/* Report Layout */
.report-layout-bottom {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.5rem;
}

.report-main, .report-sidebar {
  background: var(--blanco);
  border-radius: 20px;
  border: 1px solid var(--borde);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

/* Top Products List */
.top-productos {
  padding: 1rem;
}

.top-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-radius: 12px;
  transition: var(--transition);
}

.top-item:hover {
  background: var(--fondo);
}

.top-pos {
  width: 32px;
  height: 32px;
  background: var(--amarillo-accent);
  color: var(--blanco);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  box-shadow: 0 4px 8px rgba(245, 166, 35, 0.3);
}

.top-info {
  flex: 1;
}

.top-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.top-qty {
  font-size: 0.8rem;
  color: var(--texto-light);
}

/* Buttons */
.btn-primario {
  background: var(--verde-main);
  color: var(--blanco);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.btn-primario:hover {
  background: var(--verde-light);
  box-shadow: 0 4px 12px rgba(26,71,42,0.2);
}

.btn-secundario {
  background: var(--blanco);
  color: var(--texto);
  border: 1.5px solid var(--borde);
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.btn-secundario:hover {
  border-color: var(--verde-main);
  color: var(--verde-main);
}

.btn-peligro {
  background: var(--rojo-alert);
  color: var(--blanco);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.btn-editar, .btn-eliminar {
  background: var(--fondo);
  border: none;
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  transition: var(--transition);
}

.btn-editar:hover { background: var(--verde-soft); color: var(--verde-main); }
.btn-eliminar:hover { background: #fee2e2; color: var(--rojo-alert); }

.btn-block { width: 100%; display: flex; justify-content: center; }

/* Modals */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal.visible {
  display: flex;
  opacity: 1;
}

.modal-content {
  background: var(--blanco);
  border-radius: 20px;
  width: 95%;
  max-width: 600px;
  box-shadow: var(--shadow-lg);
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}

.modal.visible .modal-content {
  transform: scale(1);
}

.modal-sm { max-width: 400px; }

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--borde);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--fondo);
}

.modal-header h3 {
  font-weight: 800;
  color: var(--verde-main);
}

.modal-cerrar {
  background: var(--blanco);
  border: 1px solid var(--borde);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  transition: var(--transition);
}

.modal-cerrar:hover {
  background: var(--rojo-alert);
  color: var(--blanco);
  border-color: var(--rojo-alert);
}

.modal-body {
  padding: 1.5rem;
}

/* Forms in Modals */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--texto-light);
}

.form-group input, .form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--borde);
  border-radius: 10px;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-group input:focus, .form-group select:focus {
  border-color: var(--verde-main);
  box-shadow: 0 0 0 4px var(--verde-soft);
  outline: none;
}

.form-actions {
  margin-top: 1rem;
}

/* Confirm Modal Styles */
.confirm-content {
  text-align: center;
  padding: 2.5rem 1.5rem;
}

.confirm-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.confirm-content h3 {
  margin-bottom: 0.75rem;
  font-weight: 800;
}

.confirm-content p {
  color: var(--texto-light);
  margin-bottom: 2rem;
}

.modal-acciones {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

/* Receipt / Ticket Styles */
.modal-recibo-size {
  max-width: 420px;
}

.recibo-wrapper {
  padding: 2rem;
}

#recibo-contenido {
  font-family: 'Courier New', Courier, monospace;
  background: #fdfdfd;
  padding: 1.5rem;
  border: 1px solid var(--borde);
  color: #000;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.02);
}

.recibo-ticket {
  display: flex;
  flex-direction: column;
}

.recibo-header {
  text-align: center;
  border-bottom: 1px dashed #000;
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.recibo-header h2 { font-size: 1.2rem; text-transform: uppercase; }
.recibo-header p { font-size: 0.8rem; }

.recibo-body {
  margin-bottom: 1rem;
}

.recibo-line {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
}

.recibo-sep {
  border-top: 1px dashed #000;
  margin: 0.75rem 0;
}

.recibo-total-section {
  font-weight: bold;
  font-size: 1.1rem;
}

.recibo-footer {
  text-align: center;
  font-size: 0.75rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed #000;
}

.recibo-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Toast System */
#toast-container {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 320px;
}

.toast {
  padding: 1rem 1.5rem;
  border-radius: 12px;
  background: var(--blanco);
  color: var(--texto);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 0.9rem;
  transform: translateX(120%);
  transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  border-left: 5px solid var(--verde-main);
}

.toast.show {
  transform: translateX(0);
}

.toast-success { border-left-color: var(--verde-light); }
.toast-error { border-left-color: var(--rojo-alert); }

/* Loader Overlay */
.loader-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(4px);
  z-index: 3000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.loader-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--verde-soft);
  border-top-color: var(--verde-main);
  border-radius: 50%;
  animation: spin 0.8s cubic-bezier(0.5, 0.1, 0.5, 0.9) infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loader-overlay p {
  font-weight: 700;
  color: var(--verde-main);
  letter-spacing: 1px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--fondo);
}

::-webkit-scrollbar-thumb {
  background: var(--borde-dark);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--texto-light);
}

/* Responsive Design */
@media (max-width: 1200px) {
  .caja-layout {
    grid-template-columns: 1fr;
  }
  .caja-carrito {
    position: relative;
    height: auto;
    max-height: 500px;
  }
}

@media (max-width: 900px) {
  body {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    height: auto;
    padding: 1rem;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  
  .sidebar-header {
    margin-bottom: 0;
  }
  
  .sidebar-nav {
    flex-direction: row;
    gap: 0.25rem;
  }
  
  .nav-item {
    padding: 0.5rem 0.75rem;
    gap: 0.5rem;
  }
  
  .nav-label, .sidebar-footer {
    display: none;
  }
  
  .contenido {
    padding: 1rem;
    height: auto;
    overflow-y: visible;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .report-layout-bottom {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .form-group.full-width {
    grid-column: span 1;
  }
  
  .metodos-pago {
    grid-template-columns: 1fr;
  }
}

/* Loading State */
.is-loading {
  position: relative;
  pointer-events: none;
  min-height: 100px;
}

.is-loading::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(2px);
  border-radius: inherit;
  z-index: 10;
}

.is-loading::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 36px;
  height: 36px;
  margin: -18px 0 0 -18px;
  border: 3px solid var(--verde-soft);
  border-top-color: var(--verde-main);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  z-index: 11;
}

/* Empty Cart Message */
.carrito-vacio-msg {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
  color: var(--texto-light);
  text-align: center;
  gap: 0.5rem;
}

.carrito-vacio-msg p:first-child {
  font-size: 2.5rem;
  opacity: 0.3;
}

.carrito-vacio-msg p:last-child {
  font-size: 0.9rem;
}

/* Print Styles */
@media print {
  .sidebar, .section-header, .header-actions, .caja-productos, .pago-container, .btn-cobrar, .modal-header, .recibo-actions {
    display: none !important;
  }
  
  .contenido {
    padding: 0;
  }
  
  .modal {
    position: absolute;
    background: white;
    display: block;
    opacity: 1;
  }
  
  .modal-content {
    box-shadow: none;
    border: none;
    width: 100%;
  }
  
  #recibo-contenido {
    border: none;
  }
}