/* ================================================
   APRIMORAMENTOS VISUAIS DO FORMULÁRIO DE PRODUTOS
   ================================================ */

/* 🎨 Design System - Variáveis */
:root {
  --form-border-radius: 12px;
  --form-input-height: 42px;
  --form-label-weight: 500;
  --form-spacing: 20px;
  --form-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  --form-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.1);
  --form-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Cores */
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --success-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --border-color: #e5e7eb;
  --bg-input: #ffffff;
  --bg-input-focus: #f9fafb;
}

:root[data-theme="dark"] {
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --border-color: #374151;
  --bg-input: #1f2937;
  --bg-input-focus: #111827;
}

/* ================================================
   MINIATURAS DE IMAGEM E XML
   ================================================ */

/* Container de previews acima do formulário */
.file-previews-container {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  padding: 16px;
  background: var(--bg-input);
  border-radius: var(--form-border-radius);
  border: 2px dashed var(--border-color);
  transition: var(--form-transition);
}

.file-previews-container.has-files {
  border-style: solid;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.02) 0%, rgba(59, 130, 246, 0.05) 100%);
}

/* Preview individual (imagem ou XML) */
.file-preview {
  position: relative;
  flex: 1;
  min-width: 0;
  padding: 16px;
  background: white;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  transition: var(--form-transition);
  cursor: pointer;
}

:root[data-theme="dark"] .file-preview {
  background: #111827;
  border-color: #374151;
}

.file-preview:hover {
  transform: translateY(-2px);
  box-shadow: var(--form-shadow-hover);
  border-color: var(--primary-color);
}

/* Cabeçalho do preview */
.file-preview-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.file-preview-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  background: var(--primary-color);
  color: white;
}

.file-preview-icon.xml {
  background: var(--success-color);
}

.file-preview-title {
  flex: 1;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.file-preview-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 4px;
  background: var(--success-color);
  color: white;
}

.file-preview-badge.processing {
  background: var(--warning-color);
}

/* Botão de remover arquivo */
.file-preview-remove {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text-secondary);
  transition: var(--form-transition);
  border-radius: 4px;
}

.file-preview-remove:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger-color);
}

/* Miniatura da imagem */
.image-thumbnail {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  object-position: center;
  border-radius: 6px;
  padding: 8px;
  box-sizing: border-box;
  background: #f5f6fa;
  border: 1px solid var(--border-color);
}

.image-thumbnail.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(90deg, #f3f4f6 25%, #e5e7eb 50%, #f3f4f6 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Informações do XML */
.xml-preview-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.xml-info-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

.xml-info-label {
  color: var(--text-secondary);
  min-width: 80px;
  font-weight: 500;
}

.xml-info-value {
  color: var(--text-primary);
  font-weight: 600;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.xml-info-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 8px;
  background: var(--primary-color);
  color: white;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 700;
}

/* Placeholder quando não há arquivo */
.file-preview-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  text-align: center;
  color: var(--text-secondary);
  gap: 8px;
}

.file-preview-empty-icon {
  font-size: 48px;
  opacity: 0.3;
  margin-bottom: 8px;
}

.file-preview-empty-text {
  font-size: 13px;
  font-weight: 500;
}

.file-preview-empty-hint {
  font-size: 11px;
  opacity: 0.7;
}

/* ================================================
   MELHORIAS NO FORMULÁRIO
   ================================================ */

/* Header do formulário */
.form-header {
  padding: 20px 24px;
  border-bottom: 2px solid var(--border-color);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.03) 0%, transparent 100%);
  border-radius: 12px 12px 0 0;
}

.form-header h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 4px 0;
}

.form-header .text-muted {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0;
}

/* Grid do formulário */
.form-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  padding: 24px;
}

/* Form groups */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.span-12 { grid-column: span 12; }
.form-group.span-6 { grid-column: span 6; }
.form-group.span-4 { grid-column: span 4; }
.form-group.span-3 { grid-column: span 3; }

/* Labels aprimorados */
.form-label {
  font-size: 13px;
  font-weight: var(--form-label-weight);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 2px;
}

.form-label.required::after {
  content: "*";
  color: var(--danger-color);
  font-weight: 700;
  margin-left: 2px;
}

/* Inputs aprimorados */
.form-control,
.form-select,
textarea.form-control {
  width: 100%;
  height: var(--form-input-height);
  padding: 0 14px;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1.5px solid var(--border-color);
  border-radius: 8px;
  transition: var(--form-transition);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

textarea.form-control {
  height: auto;
  padding: 12px 14px;
  resize: vertical;
  min-height: 80px;
  line-height: 1.5;
}

/* Estados dos inputs */
.form-control:hover,
.form-select:hover {
  border-color: var(--primary-color);
  background: var(--bg-input-focus);
}

.form-control:focus,
.form-select:focus,
textarea.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--bg-input-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-control:disabled,
.form-select:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--border-color);
}

/* Placeholder */
.form-control::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

/* Texto de ajuda */
.form-help {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 4px;
  display: block;
}

/* Validação visual */
.form-control.is-valid,
.form-select.is-valid {
  border-color: var(--success-color);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2310b981' viewBox='0 0 16 16'%3E%3Cpath d='M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 38px;
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--danger-color);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23ef4444' viewBox='0 0 16 16'%3E%3Cpath d='M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z'/%3E%3Cpath d='M7.002 11a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 4.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 4.995z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 38px;
}

/* Indicador de confiança */
.confidence-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
  border-radius: 8px;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.confidence-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.confidence-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--success-color);
}

/* ================================================
   RESPONSIVIDADE
   ================================================ */

@media (max-width: 768px) {
  .form-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 16px;
  }
  
  .form-group.span-12,
  .form-group.span-6,
  .form-group.span-4,
  .form-group.span-3 {
    grid-column: span 1;
  }
  
  .upload-section-container {
    padding: 20px 16px;
  }
}

/* ================================================
   ANIMAÇÕES SUTIS
   ================================================ */

/* Animação de entrada dos campos preenchidos */
@keyframes fieldFill {
  0% {
    background: transparent;
  }
  50% {
    background: rgba(59, 130, 246, 0.1);
  }
  100% {
    background: transparent;
  }
}

.form-control.ai-filled {
  animation: fieldFill 0.6s ease-out;
}

/* Loading state para inputs */
.form-control.loading {
  background: linear-gradient(90deg, var(--bg-input) 25%, var(--bg-input-focus) 50%, var(--bg-input) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  pointer-events: none;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}


/* ================================================
   MINIATURAS DE IMAGEM E XML
   ================================================ */

/* Container de previews acima do formulário */
.file-previews-container {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  padding: 16px;
  background: var(--bg-input);
  border-radius: var(--form-border-radius);
  border: 2px dashed var(--border-color);
  transition: var(--form-transition);
}

.file-previews-container.has-files {
  border-style: solid;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.02) 0%, rgba(59, 130, 246, 0.05) 100%);
}

/* Preview individual (imagem ou XML) */
.file-preview {
  position: relative;
  flex: 1;
  min-width: 0;
  padding: 16px;
  background: white;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  transition: var(--form-transition);
  cursor: pointer;
}

:root[data-theme="dark"] .file-preview {
  background: #111827;
  border-color: #374151;
}

.file-preview:hover {
  transform: translateY(-2px);
  box-shadow: var(--form-shadow-hover);
  border-color: var(--primary-color);
}

/* Cabeçalho do preview */
.file-preview-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.file-preview-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  background: var(--primary-color);
  color: white;
}

.file-preview-icon.xml {
  background: var(--success-color);
}

.file-preview-title {
  flex: 1;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.file-preview-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 4px;
  background: var(--success-color);
  color: white;
}

.file-preview-badge.processing {
  background: var(--warning-color);
}

/* Botão de remover arquivo */
.file-preview-remove {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text-secondary);
  transition: var(--form-transition);
  border-radius: 4px;
}

.file-preview-remove:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger-color);
}

/* Miniatura da imagem */
.image-thumbnail {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  object-position: center;
  border-radius: 6px;
  padding: 8px;
  box-sizing: border-box;
  background: #f5f6fa;
  border: 1px solid var(--border-color);
}

.image-thumbnail.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(90deg, #f3f4f6 25%, #e5e7eb 50%, #f3f4f6 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Informações do XML */
.xml-preview-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.xml-info-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

.xml-info-label {
  color: var(--text-secondary);
  min-width: 80px;
  font-weight: 500;
}

.xml-info-value {
  color: var(--text-primary);
  font-weight: 600;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.xml-info-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 8px;
  background: var(--primary-color);
  color: white;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 700;
}

/* Placeholder quando não há arquivo */
.file-preview-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  text-align: center;
  color: var(--text-secondary);
  gap: 8px;
}

.file-preview-empty-icon {
  font-size: 48px;
  opacity: 0.3;
  margin-bottom: 8px;
}

.file-preview-empty-text {
  font-size: 13px;
  font-weight: 500;
}

.file-preview-empty-hint {
  font-size: 11px;
  opacity: 0.7;
}

/* ================================================
   MELHORIAS NO FORMULÁRIO
   ================================================ */

/* Header do formulário */
.form-header {
  padding: 20px 24px;
  border-bottom: 2px solid var(--border-color);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.02) 0%, transparent 100%);
}

.form-header h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 4px 0;
}

.form-header .text-muted {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0;
}

/* Grid do formulário */
.form-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  padding: 24px;
}

/* Form groups */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.span-12 { grid-column: span 12; }
.form-group.span-6 { grid-column: span 6; }
.form-group.span-4 { grid-column: span 4; }
.form-group.span-3 { grid-column: span 3; }

/* Labels aprimorados */
.form-label {
  font-size: 13px;
  font-weight: var(--form-label-weight);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 2px;
}

.form-label.required::after {
  content: "*";
  color: var(--danger-color);
  font-weight: 700;
  margin-left: 2px;
}

/* Inputs aprimorados */
.form-control,
.form-select,
textarea.form-control {
  width: 100%;
  height: var(--form-input-height);
  padding: 0 14px;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1.5px solid var(--border-color);
  border-radius: 8px;
  transition: var(--form-transition);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

textarea.form-control {
  height: auto;
  padding: 12px 14px;
  resize: vertical;
  min-height: 80px;
  line-height: 1.5;
}

/* Estados dos inputs */
.form-control:hover,
.form-select:hover {
  border-color: var(--primary-color);
  background: var(--bg-input-focus);
}

.form-control:focus,
.form-select:focus,
textarea.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--bg-input-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-control:disabled,
.form-select:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--border-color);
}

/* Placeholder */
.form-control::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

/* Texto de ajuda */
.form-help {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 4px;
  display: block;
}

/* Validação visual */
.form-control.is-valid,
.form-select.is-valid {
  border-color: var(--success-color);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2310b981' viewBox='0 0 16 16'%3E%3Cpath d='M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 38px;
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--danger-color);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23ef4444' viewBox='0 0 16 16'%3E%3Cpath d='M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z'/%3E%3Cpath d='M7.002 11a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 4.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 4.995z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 38px;
}

/* Indicador de confiança */
.confidence-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
  border-radius: 8px;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.confidence-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.confidence-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--success-color);
}

/* ================================================
   RESPONSIVIDADE
   ================================================ */

@media (max-width: 768px) {
  .form-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 16px;
  }
  
  .form-group.span-12,
  .form-group.span-6,
  .form-group.span-4,
  .form-group.span-3 {
    grid-column: span 1;
  }
  
  .file-previews-container {
    flex-direction: column;
  }
}

/* ================================================
   ANIMAÇÕES E MICROINTERAÇÕES
   ================================================ */

/* Animação de entrada dos campos preenchidos */
@keyframes fieldFill {
  0% {
    background: transparent;
  }
  50% {
    background: rgba(59, 130, 246, 0.1);
  }
  100% {
    background: transparent;
  }
}

.form-control.ai-filled {
  animation: fieldFill 0.6s ease-out;
}

/* Pulse para indicar novo conteúdo */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.file-preview-badge.new {
  animation: pulse 1.5s ease-in-out infinite;
}

/* Loading state para inputs */
.form-control.loading {
  background: linear-gradient(90deg, var(--bg-input) 25%, var(--bg-input-focus) 50%, var(--bg-input) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  pointer-events: none;
}