/* ========================================
   KARIME COSTURAS - DISEÑO MODERNO 2026
   ======================================== */

/* 1. Variables de Tema - Diseño Moderno */
:root {
  /* Paleta de colores moderna */
  --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --bg-card: rgba(255, 255, 255, 0.98);
  --bg-glass: rgba(255, 255, 255, 0.15);
  --text-main: #2d3748;
  --text-muted: #718096;
  --text-white: #ffffff;
  --accent: #667eea;
  --accent-hover: #5a67d8;
  --accent-secondary: #764ba2;
  --success: #48bb78;
  --warning: #ed8936;
  --danger: #f56565;
  --border: rgba(226, 232, 240, 0.8);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.2);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 2. Reset y Estilos Base */
* { 
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  line-height: 1.6;
}

/* 3. Navbar Moderna con Glassmorphism */
.navbar {
  background: var(--bg-glass) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding: 1rem 2rem !important;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

.navbar-brand {
  color: var(--text-white) !important;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  transition: var(--transition);
}

.navbar-brand:hover {
  transform: scale(1.05);
  color: var(--text-white) !important;
}

.navbar-toggler {
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
  padding: 0.5rem 1.25rem !important;
  border-radius: var(--radius-sm);
  margin: 0 0.25rem;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.2);
  color: var(--text-white) !important;
  transform: translateY(-2px);
}

.nav-link.active {
  background: rgba(255, 255, 255, 0.25);
  color: var(--text-white) !important;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--text-white);
  border-radius: 2px;
}

/* Botones del navbar */
#userbar .btn {
  border-radius: var(--radius-sm);
  font-weight: 500;
  padding: 0.5rem 1rem;
  transition: var(--transition);
  margin-left: 0.5rem;
}

#userbar .btn-outline-light {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: var(--text-white);
}

#userbar .btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--text-white);
  transform: translateY(-2px);
}

#userbar .btn-light {
  background: rgba(255, 255, 255, 0.95);
  border: none;
  color: var(--accent);
}

#userbar .btn-light:hover {
  background: var(--text-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

#userbar strong {
  color: var(--text-white);
  margin-right: 0.5rem;
}

/* 4. Main Content Container */
main {
  flex: 1;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

/* 5. Cards Modernas */
.card {
  background: var(--bg-card);
  border: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-body {
  padding: 2rem;
}

.card-header {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
  color: var(--text-white);
  padding: 1.25rem 2rem;
  font-weight: 600;
  font-size: 1.1rem;
  border: none;
}

/* 6. Tabla de Inventario Moderna */
.inventory-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0;
  margin-top: 1rem;
}

.inventory-scroll {
  overflow-x: auto;
  overflow-y: auto;
  max-height: calc(100vh - 250px);
  border-radius: var(--radius);
  padding: 1rem;
}

/* Scrollbar personalizado */
.inventory-scroll::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.inventory-scroll::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 10px;
}

.inventory-scroll::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 10px;
  transition: var(--transition);
}

.inventory-scroll::-webkit-scrollbar-thumb:hover {
  background: var(--accent-hover);
}

.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 0.5rem;
  margin-bottom: 0;
}

thead th {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
  color: var(--text-white);
  font-weight: 600;
  padding: 1rem;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 10;
  border: none;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
}

thead th:first-child {
  border-top-left-radius: var(--radius-sm);
  border-bottom-left-radius: var(--radius-sm);
  text-align: left;
}

thead th:last-child {
  border-top-right-radius: var(--radius-sm);
  border-bottom-right-radius: var(--radius-sm);
}

tbody tr {
  background: var(--bg-card);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-sm);
}

tbody tr:hover {
  transform: scale(1.01);
  box-shadow: var(--shadow);
  background: rgba(102, 126, 234, 0.05);
}

tbody td {
  padding: 1rem;
  vertical-align: middle;
  border: none;
}

tbody td:first-child {
  font-weight: 600;
  color: var(--text-main);
  border-top-left-radius: var(--radius-sm);
  border-bottom-left-radius: var(--radius-sm);
  position: sticky;
  left: 0;
  background: inherit;
  z-index: 5;
  min-width: 180px;
  max-width: 250px;
}

tbody td:last-child {
  border-top-right-radius: var(--radius-sm);
  border-bottom-right-radius: var(--radius-sm);
}

/* 7. Cell Content - Items de Inventario */
.cell-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  transition: var(--transition);
  min-height: 80px;
}

.cell-content:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.cell-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  justify-content: center;
}

.qty-badge {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent);
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
}

.price {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.price-label {
  font-weight: 500;
  color: var(--success);
}

/* 8. Botones de Edición */
.edit-btn {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
  border: none;
  color: var(--text-white);
  cursor: pointer;
  font-size: 1rem;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  font-weight: 500;
}

.edit-btn:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow);
}

.edit-btn:active {
  transform: translateY(0) scale(0.98);
}

.edit-price {
  background: linear-gradient(135deg, var(--success) 0%, #38a169 100%);
}

/* 9. Inputs y Forms */
input.form-control,
select.form-select,
textarea.form-control {
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: var(--transition);
  background: white;
}

input.form-control:focus,
select.form-select:focus,
textarea.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  outline: none;
}

.form-label {
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

/* 10. Botones Principales */
.btn {
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
  color: var(--text-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-success {
  background: linear-gradient(135deg, var(--success) 0%, #38a169 100%);
  color: var(--text-white);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger) 0%, #e53e3e 100%);
  color: var(--text-white);
}

.btn-outline-primary {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
}

.btn-outline-primary:hover {
  background: var(--accent);
  color: var(--text-white);
  transform: translateY(-2px);
}

.btn-outline-secondary {
  background: transparent;
  border: 2px solid var(--text-muted);
  color: var(--text-muted);
}

.btn-outline-secondary:hover {
  background: var(--text-muted);
  color: var(--text-white);
}

.btn-outline-danger {
  background: transparent;
  border: 2px solid var(--danger);
  color: var(--danger);
}

.btn-outline-danger:hover {
  background: var(--danger);
  color: var(--text-white);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

/* 11. Items de Venta */
.sale-item {
  margin-bottom: 1rem;
}

.sale-item-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  flex-wrap: wrap;
}

.sale-item-row:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.sale-item-row select.product {
  flex: 2;
  min-width: 200px;
}

.sale-item-row select.size {
  flex: 1;
  min-width: 150px;
}

.sale-input-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sale-input-group label {
  font-size: 0.875rem;
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
  color: var(--text-muted);
}

.sale-input-group input.qty {
  width: 80px;
}

.sale-input-group input.price {
  width: 120px;
}

.sale-total {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 150px;
  font-size: 1rem;
  font-weight: 600;
}

.sale-total .line-total {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1rem;
}

.sale-item-row .btn.remove {
  padding: 0.5rem 0.75rem;
  min-width: 40px;
}

/* 12. Ocultar spinners en inputs numéricos */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  -moz-appearance: textfield;
}

/* 13. Mensajes de Error/Success */
.error {
  background: linear-gradient(135deg, rgba(245, 101, 101, 0.1) 0%, rgba(229, 62, 62, 0.1) 100%);
  border-left: 4px solid var(--danger);
  color: var(--danger);
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-top: 1rem;
  font-weight: 500;
}

.success {
  background: linear-gradient(135deg, rgba(72, 187, 120, 0.1) 0%, rgba(56, 161, 105, 0.1) 100%);
  border-left: 4px solid var(--success);
  color: var(--success);
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-top: 1rem;
  font-weight: 500;
}

/* 14. Loading States */
#loading {
  text-align: center;
  padding: 3rem;
  font-size: 1.2rem;
  color: var(--text-white);
  font-weight: 600;
}

/* 15. Leyenda del Inventario */
.inventory-legend {
  display: flex;
  gap: 2rem;
  padding: 1.5rem 2rem;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
  border-radius: var(--radius-sm);
  margin-top: 1rem;
  flex-wrap: wrap;
}

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

.legend-key {
  background: var(--accent);
  color: var(--text-white);
  width: 35px;
  height: 35px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: var(--shadow-sm);
}

.legend-item span:last-child {
  color: var(--text-main);
  font-size: 0.9rem;
}

.legend-item strong {
  color: var(--accent);
}

/* 16. Tabla de Ventas */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(102, 126, 234, 0.03);
}

.table-hover tbody tr:hover {
  background-color: rgba(102, 126, 234, 0.08);
}

/* 17. Animaciones */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card,
.sale-item {
  animation: fadeIn 0.4s ease-out;
}

/* 18. Login Page */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.login-card {
  max-width: 450px;
  width: 100%;
  background: var(--bg-card);
  padding: 3rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.login-card h1 {
  color: var(--accent);
  text-align: center;
  margin-bottom: 2rem;
  font-size: 2rem;
  font-weight: 700;
}

/* 19. Responsive Design */
@media (max-width: 1200px) {
  main {
    padding: 1.5rem;
  }
  
  .inventory-scroll {
    max-height: calc(100vh - 280px);
  }
}

@media (max-width: 992px) {
  .navbar {
    padding: 1rem !important;
  }
  
  main {
    padding: 1rem;
  }
  
  .sale-item-row {
    flex-direction: column;
    align-items: stretch;
  }
  
  .sale-item-row select.product,
  .sale-item-row select.size {
    min-width: 100%;
    flex: 1;
  }
  
  .sale-input-group {
    width: 100%;
    justify-content: space-between;
  }
  
  .sale-total {
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 768px) {
  .navbar-brand {
    font-size: 1.2rem;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  thead th {
    font-size: 0.75rem;
    padding: 0.75rem 0.5rem;
  }
  
  tbody td {
    padding: 0.75rem 0.5rem;
  }
  
  tbody td:first-child {
    min-width: 120px;
    font-size: 0.9rem;
  }
  
  .cell-content {
    padding: 0.5rem;
    min-height: 70px;
  }
  
  .qty-badge {
    font-size: 1rem;
    padding: 0.2rem 0.5rem;
  }
  
  .edit-btn {
    font-size: 0.85rem;
    padding: 0.3rem 0.5rem;
  }
  
  .inventory-legend {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }
  
  .inventory-scroll {
    max-height: calc(100vh - 320px);
    padding: 0.5rem;
  }
  
  #userbar {
    flex-direction: column;
    align-items: flex-start !important;
    gap: 0.5rem;
    margin-top: 1rem;
  }
  
  #userbar .btn {
    margin-left: 0 !important;
    width: 100%;
  }
}

@media (max-width: 576px) {
  main {
    padding: 0.75rem;
  }
  
  .navbar {
    padding: 0.75rem !important;
  }
  
  .card {
    border-radius: var(--radius-sm);
  }
  
  .btn {
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
  }
  
  .login-card {
    padding: 2rem 1.5rem;
  }
  
  .login-card h1 {
    font-size: 1.5rem;
  }
}

/* 20. Utilidades */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.d-flex { display: flex; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

/* 21. Finanzas Page */
.page-title {
  color: var(--text-white);
  font-weight: 700;
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.modern-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  transition: var(--transition);
}

.modern-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-header-modern {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
  color: var(--text-white);
  padding: 1.25rem 2rem;
  font-weight: 600;
  font-size: 1.1rem;
  border-radius: var(--radius) var(--radius) 0 0;
  margin: -2rem -2rem 2rem -2rem;
}

.finance-icon {
  font-size: 4rem;
  line-height: 1;
}

.finance-label {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.finance-amount {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
}

.modern-table {
  margin-bottom: 0;
}

.modern-table thead th {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
  color: var(--text-white);
  font-weight: 600;
  padding: 1rem;
  text-align: left;
  border: none;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.modern-table thead th.text-center {
  text-align: center;
}

.modern-table thead th.text-end {
  text-align: right;
}

.modern-table tbody tr {
  transition: var(--transition);
  border-bottom: 1px solid var(--border);
}

.modern-table tbody tr:hover {
  background-color: rgba(102, 126, 234, 0.05);
}

.modern-table tbody td {
  padding: 1.25rem 1rem;
  vertical-align: middle;
  border: none;
}

.modern-table .badge {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.modern-table .text-success {
  color: var(--success) !important;
}

.modern-table .text-muted {
  color: var(--text-muted) !important;
}

@media (max-width: 768px) {
  .page-title {
    font-size: 1.75rem;
  }
  
  .finance-amount {
    font-size: 2rem;
  }
  
  .finance-icon {
    font-size: 3rem;
  }
  
  .modern-table thead th {
    font-size: 0.75rem;
    padding: 0.75rem 0.5rem;
  }
  
  .modern-table tbody td {
    padding: 1rem 0.5rem;
    font-size: 0.9rem;
  }
}