/**
 * Componentes Reutilizáveis - Sistema Logístico SaaS
 * Biblioteca de componentes modernos, clean e intuitivos
 */

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  line-height: var(--leading-tight);
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  user-select: none;
}

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

.btn-primary {
  background-color: var(--color-primary-600);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background-color: white;
  color: var(--color-gray-700);
  border: var(--border-width) solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-gray-50);
  border-color: var(--border-color-hover);
}

.btn-danger {
  background-color: var(--color-error-600);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--color-error-700);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-gray-700);
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-gray-100);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
}

/* ========== CARDS ========== */
.card {
  background-color: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: var(--border-width) solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  padding: var(--space-6);
  border-bottom: var(--border-width) solid var(--border-color);
}

.card-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin: 0;
}

.card-subtitle {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--space-1);
}

.card-body {
  padding: var(--space-6);
}

.card-footer {
  padding: var(--space-6);
  border-top: var(--border-width) solid var(--border-color);
  background-color: var(--color-gray-50);
}

.card-stat {
  padding: var(--space-6);
  text-align: center;
}

.card-stat-value {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.card-stat-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-stat-icon {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

/* ========== FORMS ========== */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.form-label-required::after {
  content: ' *';
  color: var(--color-error-500);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: white;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--border-color-hover);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--border-color-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  outline: none;
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background-color: var(--color-gray-100);
  color: var(--text-disabled);
  cursor: not-allowed;
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-help {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

.form-error {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-error-600);
}

.form-input.is-error,
.form-select.is-error,
.form-textarea.is-error {
  border-color: var(--color-error-500);
}

.form-input.is-success,
.form-select.is-success,
.form-textarea.is-success {
  border-color: var(--color-success-500);
}

/* Form Grid */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .form-grid-2 { grid-template-columns: repeat(2, 1fr); }
  .form-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .form-grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ========== BADGES / STATUS ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  line-height: var(--leading-tight);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-success {
  background-color: var(--status-disponivel-bg);
  color: var(--status-disponivel-text);
}

.badge-info {
  background-color: var(--status-em-viagem-bg);
  color: var(--status-em-viagem-text);
}

.badge-warning {
  background-color: var(--status-manutencao-bg);
  color: var(--status-manutencao-text);
}

.badge-gray {
  background-color: var(--status-inativo-bg);
  color: var(--status-inativo-text);
}

.badge-error {
  background-color: var(--color-error-100);
  color: var(--color-error-700);
}

/* ========== TABLES ========== */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-xl);
  border: var(--border-width) solid var(--border-color);
}

.table {
  width: 100%;
  border-collapse: collapse;
  background-color: white;
}

.table thead {
  background-color: var(--color-gray-50);
  border-bottom: var(--border-width) solid var(--border-color);
}

.table th {
  padding: var(--space-4);
  text-align: left;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.table td {
  padding: var(--space-4);
  font-size: var(--text-sm);
  color: var(--text-primary);
  border-top: var(--border-width) solid var(--border-color);
}

.table tbody tr {
  transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
  background-color: var(--color-gray-50);
}

.table-actions {
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
}

.table-action-btn {
  padding: var(--space-2);
  border: none;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.table-action-btn:hover {
  background-color: var(--color-gray-100);
  color: var(--text-primary);
}

.table-action-btn.danger:hover {
  background-color: var(--color-error-50);
  color: var(--color-error-600);
}

/* ========== MODALS ========== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  animation: fadeIn var(--transition-base);
}

.modal-backdrop.show {
  display: flex;
}

.modal {
  background-color: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  max-width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: slideUp var(--transition-base);
}

.modal-sm { max-width: 24rem; }
.modal-md { max-width: 32rem; }
.modal-lg { max-width: 48rem; }
.modal-xl { max-width: 64rem; }

.modal-header {
  padding: var(--space-6);
  border-bottom: var(--border-width) solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  margin: 0;
}

.modal-close {
  padding: var(--space-2);
  border: none;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--color-gray-100);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-6);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: var(--space-6);
  border-top: var(--border-width) solid var(--border-color);
  background-color: var(--color-gray-50);
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
}

/* ========== ALERTS ========== */
.alert {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border-left: var(--border-width-4) solid;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  animation: slideDown var(--transition-base);
}

.alert-icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-1);
}

.alert-message {
  font-size: var(--text-sm);
}

.alert-close {
  flex-shrink: 0;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.alert-close:hover {
  opacity: 1;
}

.alert-success {
  background-color: var(--color-success-50);
  border-color: var(--color-success-500);
  color: var(--color-success-700);
}

.alert-error {
  background-color: var(--color-error-50);
  border-color: var(--color-error-500);
  color: var(--color-error-700);
}

.alert-warning {
  background-color: var(--color-warning-50);
  border-color: var(--color-warning-500);
  color: var(--color-warning-700);
}

.alert-info {
  background-color: var(--color-info-50);
  border-color: var(--color-info-500);
  color: var(--color-info-700);
}

/* ========== LOADING STATES ========== */
.spinner {
  display: inline-block;
  width: 1.5rem;
  height: 1.5rem;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary-600);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-sm {
  width: 1rem;
  height: 1rem;
  border-width: 2px;
}

.spinner-lg {
  width: 2.5rem;
  height: 2.5rem;
  border-width: 4px;
}

.loading-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-8);
  color: var(--text-secondary);
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-200) 0%,
    var(--color-gray-100) 50%,
    var(--color-gray-200) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 1rem;
  margin-bottom: var(--space-2);
}

.skeleton-title {
  height: 1.5rem;
  width: 60%;
  margin-bottom: var(--space-4);
}

.skeleton-avatar {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-full);
}

/* ========== PAGINATION ========== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-top: var(--border-width) solid var(--border-color);
  background-color: white;
}

.pagination-info {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.pagination-buttons {
  display: flex;
  gap: var(--space-2);
}

/* ========== EMPTY STATES ========== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-6);
  text-align: center;
}

.empty-state-icon {
  font-size: 4rem;
  color: var(--color-gray-300);
  margin-bottom: var(--space-6);
}

.empty-state-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.empty-state-description {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  max-width: 28rem;
}

/* ========== BREADCRUMBS ========== */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
}

.breadcrumb-item {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb-item:hover {
  color: var(--text-primary);
}

.breadcrumb-item.active {
  color: var(--text-primary);
  font-weight: var(--font-medium);
}

.breadcrumb-separator {
  color: var(--color-gray-300);
}

/* ========== PAGE HEADER ========== */
.page-header {
  margin-bottom: var(--space-8);
}

.page-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.page-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.page-title-icon {
  color: var(--color-primary-600);
}

.page-description {
  font-size: var(--text-base);
  color: var(--text-secondary);
}

.page-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* ========== FILTERS SECTION ========== */
.filters-container {
  background-color: white;
  border-radius: var(--radius-xl);
  border: var(--border-width) solid var(--border-color);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.filters-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ========== ANIMATIONS ========== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

/* ========== RESPONSIVE UTILITIES ========== */
@media (max-width: 768px) {
  .mobile-hidden {
    display: none !important;
  }
  
  .page-header-top {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .page-actions {
    width: 100%;
  }
  
  .page-actions .btn {
    flex: 1;
  }
}

@media (min-width: 769px) {
  .desktop-hidden {
    display: none !important;
  }
}