/* Reset y base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: #f8fafc;
  color: #334155;
  line-height: 1.6;
}

/* Login Page */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: 2rem;
}

.login-card {
  background: white;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.logo-icon {
  font-size: 2rem;
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1e293b;
}

.login-header p {
  color: #64748b;
  font-size: 0.875rem;
}

.login-form {
  margin-bottom: 1.5rem;
}

.login-footer {
  text-align: center;
  padding-top: 1rem;
  border-top: 1px solid #e2e8f0;
}

/* Header */
.admin-header {
  background: white;
  border-bottom: 1px solid #e2e8f0;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.header-left .logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.125rem;
  color: #1e293b;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Container */
.admin-container {
  display: flex;
  min-height: 100vh;
  padding-top: 64px;
}

/* Sidebar */
.admin-sidebar {
  width: 250px;
  background: white;
  border-right: 1px solid #e2e8f0;
  position: fixed;
  top: 64px;
  left: 0;
  bottom: 0;
  overflow-y: auto;
}

.sidebar-nav ul {
  list-style: none;
  padding: 1rem 0;
}

.sidebar-nav li {
  margin: 0;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  color: #64748b;
  text-decoration: none;
  transition: all 0.2s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background-color: #f1f5f9;
  color: #dc2626;
}

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

/* Main Content */
.admin-main {
  flex: 1;
  margin-left: 250px;
  padding: 2rem;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
  gap: 2rem;
}

.page-title h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 0.5rem;
}

.page-title p {
  color: #64748b;
}

.page-actions {
  flex-shrink: 0;
}

/* Cards */
.card {
  background: white;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  margin-bottom: 1.5rem;
}

.card-header {
  padding: 1.5rem;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h2,
.card-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1e293b;
}

.card-body {
  padding: 1.5rem;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: white;
  border-radius: 8px;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border: 1px solid #e2e8f0;
}

.stat-card.stat-primary {
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  color: white;
  border: none;
}

.stat-card.stat-success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
  border: none;
}

.stat-card.stat-info {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  color: white;
  border: none;
}

.stat-card.stat-warning {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: white;
  border: none;
}

.stat-icon {
  font-size: 2rem;
  opacity: 0.9;
}

.stat-content h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.stat-content p {
  font-size: 0.875rem;
  opacity: 0.9;
}

/* Activity List */
.activity-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.activity-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: #f8fafc;
  border-radius: 6px;
}

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

.activity-content p {
  margin-bottom: 0.25rem;
}

.activity-content small {
  color: #64748b;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #374151;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 0.875rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-row.form-row-3 {
  grid-template-columns: 1fr 1fr auto;
}

.form-text {
  font-size: 0.75rem;
  color: #6b7280;
  margin-top: 0.25rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background-color: #dc2626;
  color: white;
}

.btn-primary:hover {
  background-color: #b91c1c;
}

.btn-outline {
  background-color: transparent;
  color: #374151;
  border: 1px solid #d1d5db;
}

.btn-outline:hover {
  background-color: #f9fafb;
}

.btn-danger {
  background-color: #ef4444;
  color: white;
}

.btn-danger:hover {
  background-color: #dc2626;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
}

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

/* Filters */
.filters-form .form-row {
  grid-template-columns: 2fr 1fr auto;
  align-items: end;
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.product-card:hover {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.product-header {
  padding: 1.5rem 1.5rem 1rem;
}

.product-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.5rem;
}

.product-badges {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.product-content {
  padding: 0 1.5rem 1rem;
}

.product-description {
  color: #64748b;
  font-size: 0.875rem;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.product-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.detail-item {
  font-size: 0.875rem;
}

.product-actions {
  padding: 1rem 1.5rem;
  border-top: 1px solid #e2e8f0;
  display: flex;
  gap: 0.5rem;
}

/* Image Upload Styles */
.image-upload {
  border: 2px dashed #d1d5db;
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  background-color: #f9fafb;
  transition: all 0.2s;
  margin-bottom: 1rem;
}

.image-upload:hover {
  border-color: #dc2626;
  background-color: #fef2f2;
}

.image-upload input[type="file"] {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  background-color: white;
}

.upload-progress {
  margin-top: 1rem;
  padding: 1rem;
  background-color: #f0f9ff;
  border-radius: 6px;
  border: 1px solid #bae6fd;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background-color: #e5e7eb;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-bar::after {
  content: "";
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #3b82f6, #1d4ed8);
  width: 0%;
  animation: progress-animation 2s ease-in-out infinite;
}

@keyframes progress-animation {
  0% {
    width: 0%;
  }
  50% {
    width: 70%;
  }
  100% {
    width: 100%;
  }
}

.progress-text {
  font-size: 0.875rem;
  color: #1e40af;
  font-weight: 500;
}

.image-preview {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background-color: #f8fafc;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  margin-bottom: 1rem;
}

.image-preview img {
  border-radius: 6px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.image-info {
  flex: 1;
}

.image-info strong {
  display: block;
  color: #1e293b;
  margin-bottom: 0.25rem;
}

.image-info small {
  color: #64748b;
}

/* Specification and Image Rows */
.specification-row,
.image-row {
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background: #ffffff;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.specification-row .form-row,
.image-row .form-row {
  grid-template-columns: 2fr auto;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}

/* Form Actions */
.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  padding: 2rem 0;
  border-top: 1px solid #e2e8f0;
  margin-top: 2rem;
}

/* Success States */
.upload-success {
  background-color: #dcfce7;
  border-color: #bbf7d0;
  color: #166534;
}

.upload-error {
  background-color: #fee2e2;
  border-color: #fecaca;
  color: #991b1b;
}

/* Image Grid for Multiple Images */
.images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.image-item {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
}

.image-item img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.image-item-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
}

.image-item:hover .image-item-overlay {
  opacity: 1;
}

.image-item-actions {
  display: flex;
  gap: 0.5rem;
}

/* Drag and Drop Styles */
.drag-over {
  border-color: #dc2626 !important;
  background-color: #fef2f2 !important;
}

.drag-over::after {
  content: "Suelta la imagen aquí";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #dc2626;
  font-weight: 600;
  font-size: 1.125rem;
}

/* Loading States */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid #f3f3f3;
  border-top: 2px solid #dc2626;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Utility Classes */
.text-success {
  color: #059669;
}

.text-danger {
  color: #dc2626;
}

/* Tab Navigation */
.tab-buttons {
  display: flex;
  gap: 0;
  margin-bottom: 2rem;
  border-bottom: 1px solid #e2e8f0;
}

.tab-button {
  padding: 1rem 1.5rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: #64748b;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.875rem;
}

.tab-button:hover {
  color: #dc2626;
  background-color: #f8fafc;
}

.tab-button.active {
  color: #dc2626;
  border-bottom-color: #dc2626;
  background-color: #fef2f2;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Responsive */
@media (max-width: 768px) {
  .admin-container {
    flex-direction: column;
  }

  .admin-sidebar {
    position: static;
    width: 100%;
    height: auto;
  }

  .admin-main {
    margin-left: 0;
    padding: 1rem;
  }

  .page-header {
    flex-direction: column;
    align-items: stretch;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

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

  .filters-form .form-row {
    grid-template-columns: 1fr;
  }

  .tab-buttons {
    flex-wrap: wrap;
  }

  .form-actions {
    flex-direction: column;
  }

  .image-preview {
    flex-direction: column;
    text-align: center;
  }

  .image-preview img {
    max-width: 100px;
    max-height: 100px;
  }

  .images-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .image-row .form-row {
    grid-template-columns: 1fr;
  }
}