/* Reset e base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body,
html {
  margin: 0;
  padding: 0;
  font-family: var(--font-primary);
  background: var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.6;
}

/* Layout principal */
.layout {
  display: flex;
  min-height: 100vh;
  position: relative;
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: var(--color-surface);
  border-right: 1px solid var(--border-color);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  transition: transform var(--transition-normal);
}

.sidebar h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 var(--space-xl) 0;
  color: var(--color-text-primary);
  font-family: var(--font-secondary);
}

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

.sidebar nav li {
  margin-bottom: var(--space-sm);
}

.sidebar nav a {
  display: block;
  padding: var(--space-md) var(--space-lg);
  text-decoration: none;
  color: var(--color-text-secondary);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  font-weight: 500;
  position: relative;
}

.sidebar nav a:hover {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  transform: translateX(4px);
}

.sidebar nav a.active {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.sidebar nav a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--color-primary);
  transition: height var(--transition-fast);
}

.sidebar nav a:hover::before {
  height: 100%;
}

/* Menu toggle para mobile */
.menu-toggle {
  display: none;
  position: fixed;
  top: var(--space-lg);
  left: var(--space-lg);
  z-index: 1000;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
  padding: var(--space-md);
  border-radius: var(--border-radius);
  cursor: pointer;
  box-shadow: var(--shadow-md);
}

/* Conteúdo principal */
.main-content {
  flex: 1;
  padding: var(--space-2xl);
  margin-left: 280px;
  min-height: 100vh;
}

.main-content h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0 0 var(--space-xl) 0;
  color: var(--color-text-primary);
  font-family: var(--font-secondary);
}

/* Cards */
.card {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

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

/* Folhas de assinatura */
.folha-container {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.folha-container textarea {
  width: 100%;
  height: 400px;
  background: var(--color-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  resize: vertical;
  padding: var(--space-lg);
  font-size: 14px;
  font-family: 'Monaco', 'Menlo', monospace;
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast);
}

.folha-container textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.folha-container textarea::placeholder {
  color: var(--color-text-muted);
}

.controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

/* Formulários */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 600;
  color: var(--color-text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-family: var(--font-primary);
  transition: all var(--transition-fast);
  background: var(--color-surface);
  color: var(--color-text-primary);
}

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

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-lg);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-primary);
  line-height: 1.2;
  min-height: 44px;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background: var(--color-secondary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

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

.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-sm {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  min-height: 36px;
}

.btn-lg {
  padding: var(--space-lg) var(--space-xl);
  font-size: 1.125rem;
  min-height: 52px;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn:disabled:hover {
  transform: none;
  box-shadow: none;
}

/* Filtros */
.filtros {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
}

.filtros label {
  font-weight: 600;
  color: var(--color-text-primary);
  margin-right: var(--space-sm);
  align-self: center;
}

.filtros select,
.filtros input {
  min-width: 200px;
}

#filtros-dinamicos {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
}

/* Tabelas */
.table-container {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.resultados-container table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.resultados-container th {
  background: var(--color-primary-bg);
  color: var(--color-text-primary);
  padding: var(--space-md);
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--border-color);
}

.resultados-container td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-color);
  color: var(--color-text-secondary);
}

.resultados-container tr:hover {
  background: var(--color-surface-hover);
}

.resultados-container tr:last-child td {
  border-bottom: none;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.modal-content {
  background: var(--color-surface);
  padding: var(--space-xl);
  border-radius: var(--border-radius-xl);
  max-width: 600px;
  width: 95%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
}

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

.modal-header h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
  color: var(--color-text-primary);
}

.modal-header .btn {
  margin-left: var(--space-md);
}

/* Utilitários */
.flex {
  display: flex;
}

.flex-center {
  align-items: center;
  justify-content: center;
}

.flex-between {
  justify-content: space-between;
}

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

.gap-sm {
  gap: var(--space-sm);
}

.gap-md {
  gap: var(--space-md);
}

.gap-lg {
  gap: var(--space-lg);
}

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--color-text-muted);
}

.text-success {
  color: var(--color-success);
}

.text-error {
  color: var(--color-error);
}

.mb-0 {
  margin-bottom: 0;
}

.mb-sm {
  margin-bottom: var(--space-sm);
}

.mb-md {
  margin-bottom: var(--space-md);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

.mb-xl {
  margin-bottom: var(--space-xl);
}

/* Mensagens de status */
.alert {
  padding: var(--space-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-lg);
  border: 1px solid transparent;
}

.alert-success {
  background: var(--color-secondary-bg);
  color: var(--color-secondary-dark);
  border-color: var(--color-secondary-light);
}

.alert-error {
  background: #fef2f2;
  color: #b91c1c;
  border-color: #fecaca;
}

.alert-info {
  background: var(--color-primary-bg);
  color: var(--color-primary-dark);
  border-color: var(--color-primary-light);
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  color: var(--color-text-muted);
}

.loading::before {
  content: '';
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-primary-bg);
  border-top: 2px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-right: var(--space-md);
}

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

/* Responsividade */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: 100%;
    max-width: 300px;
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
  
  .menu-toggle {
    display: block;
  }
  
  .main-content {
    margin-left: 0;
    padding: var(--space-lg);
  }
  
  .main-content h1 {
    font-size: 2rem;
    margin-top: 60px;
  }
  
  .folha-container {
    grid-template-columns: 1fr;
  }
  
  .filtros {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filtros select,
  .filtros input {
    min-width: auto;
  }
  
  #filtros-dinamicos {
    flex-direction: column;
    align-items: stretch;
  }
  
  .modal-content {
    margin: var(--space-md);
    width: calc(100% - 2rem);
  }
  
  .resultados-container {
    overflow-x: auto;
  }
  
  .resultados-container table {
    min-width: 600px;
  }
}

@media (max-width: 480px) {
  .main-content {
    padding: var(--space-md);
  }
  
  .main-content h1 {
    font-size: 1.75rem;
  }
  
  .folha-container textarea {
    height: 300px;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .flex-between {
    flex-direction: column;
    gap: var(--space-md);
  }
}

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

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

/* Impressão */
@media print {
  .sidebar,
  .menu-toggle,
  .btn,
  .filtros,
  .no-print {
    display: none !important;
  }
  
  .main-content {
    margin-left: 0;
    padding: 0;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #000;
  }
}