/**
 * Estilos CSS para el Sistema Web de Ajuste de Inventario
 */

/* ==================== VARIABLES CSS ==================== */
:root {
  --primary-color: #2563eb;
  --secondary-color: #64748b;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --info-color: #06b6d4;

  --bg-color: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --text-primary: #1e293b;
  --text-secondary: #64748b;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

  --border-radius: 8px;
  --transition: all 0.3s ease;
}

/* ==================== RESET ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-color);
}

/* ==================== LAYOUT ==================== */
.container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem;
}

/* ==================== HEADER ==================== */
.page-header {
  background: linear-gradient(135deg, var(--primary-color), #1e40af);
  color: white;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.page-header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.page-header .subtitle {
  font-size: 1rem;
  opacity: 0.9;
}

.breadcrumb {
  margin-top: 1rem;
  font-size: 0.875rem;
}

.breadcrumb a {
  color: white;
  text-decoration: none;
  opacity: 0.8;
  transition: var(--transition);
}

.breadcrumb a:hover {
  opacity: 1;
  text-decoration: underline;
}

.breadcrumb span {
  opacity: 1;
}

/* ==================== FOOTER ==================== */
.page-footer {
  background-color: var(--text-primary);
  color: white;
  text-align: center;
  padding: 1.5rem;
  margin-top: auto;
}

.page-footer p {
  font-size: 0.875rem;
  opacity: 0.8;
}

/* ==================== MENU GRID (index.html) ==================== */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.menu-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

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

.menu-card h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.menu-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

/* ==================== BOTONES ==================== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background-color: #1d4ed8;
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: white;
}

.btn-secondary:hover:not(:disabled) {
  background-color: #475569;
}

.btn-success {
  background-color: var(--success-color);
  color: white;
}

.btn-success:hover:not(:disabled) {
  background-color: #059669;
}

.btn-warning {
  background-color: var(--warning-color);
  color: white;
}

.btn-warning:hover:not(:disabled) {
  background-color: #d97706;
}

.btn-info {
  background-color: var(--info-color);
  color: white;
}

.btn-info:hover:not(:disabled) {
  background-color: #0891b2;
}

.btn-danger {
  background-color: var(--error-color);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background-color: #dc2626;
}

/* ==================== FORMULARIOS ==================== */
.form-container {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  background: var(--bg-card);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.form-container-wide {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.form-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-section h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.form-description {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

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

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

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input:disabled,
.form-group select:disabled,
.form-group textarea:disabled {
  background-color: #f1f5f9;
  cursor: not-allowed;
}

.form-help {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.form-actions {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

/* ==================== INFO BOX ==================== */
.info-box {
  background-color: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--border-radius);
  padding: 1rem;
  margin-top: 1rem;
}

.info-box h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

.info-section {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  margin-top: 2rem;
}

.info-section h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.info-item {
  padding: 1rem;
}

.info-item strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

.info-item ul {
  margin-left: 1.5rem;
  color: var(--text-secondary);
}

/* ==================== HELP SIDEBAR ==================== */
.help-sidebar {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
}

.help-sidebar h3 {
  font-size: 1.125rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.help-item {
  margin-bottom: 1.5rem;
}

.help-item strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.help-item ul {
  margin-left: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

kbd {
  background-color: #e2e8f0;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  padding: 0.125rem 0.375rem;
  font-family: monospace;
  font-size: 0.875rem;
}

/* ==================== MODAL ==================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

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

.modal-header h2 {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.modal-close {
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: var(--text-secondary);
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--error-color);
}

.modal-body {
  padding: 1.5rem;
}

.modal-body h3 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.modal-footer {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
}

/* ==================== TABLAS ==================== */
.summary-table,
.details-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

.summary-table td,
.details-table td,
.details-table th {
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  text-align: left;
}

.summary-table td:first-child,
.details-table th {
  background-color: #f8fafc;
  font-weight: 500;
}

.details-table thead {
  background-color: var(--primary-color);
  color: white;
}

/* ==================== BOXES ==================== */
.success-box,
.error-box,
.warning-box {
  padding: 1.5rem;
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
}

.success-box {
  background-color: #d1fae5;
  border: 1px solid #6ee7b7;
}

.error-box {
  background-color: #fee2e2;
  border: 1px solid #fca5a5;
}

.warning-box {
  background-color: #fef3c7;
  border: 1px solid #fcd34d;
}

.success-icon,
.error-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

/* ==================== RESULTADOS ==================== */
.status-section {
  text-align: center;
  padding: 3rem;
}

.status-text {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-top: 1rem;
}

.result-info {
  margin: 2rem 0;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  text-align: center;
}

.info-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.info-value {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
}

.details-section {
  margin: 2rem 0;
}

.result-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
}

.error-message {
  background: white;
  border: 1px solid var(--error-color);
  border-radius: var(--border-radius);
  padding: 1rem;
  font-family: monospace;
  font-size: 0.875rem;
  color: var(--error-color);
  white-space: pre-wrap;
}

/* ==================== SPINNER ==================== */
#loading-spinner {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.spinner,
.spinner-large {
  border: 4px solid #f3f3f3;
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

.spinner-large {
  width: 60px;
  height: 60px;
  border-width: 6px;
}

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

/* ==================== NOTIFICACIONES ==================== */
.error-notification,
.success-notification,
.warning-notification {
  position: fixed;
  top: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  z-index: 10000;
  max-width: 400px;
  display: none;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.error-notification {
  background-color: var(--error-color);
  color: white;
}

.success-notification {
  background-color: var(--success-color);
  color: white;
}

.warning-notification {
  background-color: var(--warning-color);
  color: white;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
  .form-container {
    grid-template-columns: 1fr;
  }

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

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

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

  .page-header h1 {
    font-size: 1.5rem;
  }

  .modal-content {
    width: 95%;
  }
}