:root {
  /* Cores Principais */
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --success-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
  --info-color: #3b82f6;
  --light-color: #f8fafc;
  --dark-color: #1f2937;
  --gray-color: #6b7280;

  /* Backgrounds */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #e5e7eb;

  /* Borders */
  --border-color: #e5e7eb;
  --border-radius: 8px;

  /* Shadows */
  --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);

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--dark-color);
  background-color: var(--bg-secondary);
}

.hidden {
  display: none !important;
}

/* ===== LOGIN SCREEN ===== */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  padding: 20px;
}

.login-container {
  background: white;
  padding: 40px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 400px;
}

.login-header {
  text-align: center;
  margin-bottom: 30px;
}

.login-header i {
  font-size: 48px;
  color: var(--primary-color);
  margin-bottom: 16px;
}

.login-header h1 {
  font-size: 28px;
  font-weight: bold;
  color: var(--dark-color);
  margin-bottom: 8px;
}

.login-header p {
  color: var(--gray-color);
  font-size: 14px;
}

.login-form .form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--dark-color);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 16px;
  transition: border-color 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

.password-input {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--gray-color);
  cursor: pointer;
  padding: 4px;
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn--primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
}

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

.btn--secondary {
  background: var(--bg-tertiary);
  color: var(--dark-color);
}

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

.btn--full-width {
  width: 100%;
}

.error-message {
  background: #fee2e2;
  color: var(--danger-color);
  padding: 12px;
  border-radius: var(--border-radius);
  margin-bottom: 16px;
  border: 1px solid #fecaca;
}

.login-info {
  margin-top: 20px;
  padding: 16px;
  background: #f0f9ff;
  border-radius: var(--border-radius);
  border: 1px solid #bae6fd;
  font-size: 14px;
}

.login-info code {
  background: #e0e7ff;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
}

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

.sidebar {
  width: 250px;
  background: white;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: bold;
  color: var(--primary-color);
}

.sidebar-toggle {
  background: none;
  border: none;
  color: var(--gray-color);
  cursor: pointer;
  padding: 4px;
}

.sidebar-nav {
  padding: 20px 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: var(--gray-color);
  text-decoration: none;
  transition: all 0.2s;
}

.nav-item:hover,
.nav-item.active {
  background: #f3f4f6;
  color: var(--primary-color);
}

.nav-item i {
  width: 20px;
  text-align: center;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.main-header {
  background: white;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-left h1 {
  font-size: 24px;
  font-weight: bold;
  color: var(--dark-color);
  margin-bottom: 4px;
}

.header-left p {
  color: var(--gray-color);
  font-size: 14px;
}

.header-right {
  display: flex;
  gap: 12px;
}

/* ===== CONTENT SECTIONS ===== */
.section-content {
  display: none;
  padding: 24px;
  flex: 1;
}

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

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.section-header h2 {
  font-size: 20px;
  font-weight: bold;
  color: var(--dark-color);
}

.section-controls {
  display: flex;
  gap: 12px;
}

/* ===== METRICS CARDS ===== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.metric-card {
  background: white;
  padding: 24px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 16px;
}

.metric-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  color: var(--gray-color);
}

.metric-icon.primary {
  background: #dbeafe;
  color: var(--info-color);
}

.metric-icon.success {
  background: #d1fae5;
  color: var(--success-color);
}

.metric-icon.danger {
  background: #fee2e2;
  color: var(--danger-color);
}

.metric-info h3 {
  font-size: 24px;
  font-weight: bold;
  color: var(--dark-color);
  margin-bottom: 4px;
}

.metric-info p {
  color: var(--gray-color);
  font-size: 14px;
}

/* ===== DASHBOARD SECTIONS ===== */
.dashboard-section {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.dashboard-section .section-header {
  padding: 24px 24px 0;
  margin-bottom: 16px;
}

.due-dates-list {
  padding: 0 24px 24px;
}

.due-date-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  margin-bottom: 12px;
}

.due-date-info h4 {
  font-size: 16px;
  font-weight: 500;
  color: var(--dark-color);
  margin-bottom: 4px;
}

.due-date-info p {
  font-size: 14px;
  color: var(--gray-color);
}

.due-date-actions {
  display: flex;
  gap: 8px;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

/* ===== CHARTS ===== */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
}

.chart-card {
  background: white;
  padding: 24px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.chart-card h3 {
  font-size: 18px;
  font-weight: 500;
  color: var(--dark-color);
  margin-bottom: 20px;
}

/* ===== CLIENTS TABLE ===== */
.clients-table-container {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
  margin-bottom: 20px;
}

.clients-table {
  width: 100%;
  border-collapse: collapse;
}

.clients-table th,
.clients-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.clients-table th {
  background: var(--bg-secondary);
  font-weight: 500;
  color: var(--dark-color);
}

.clients-table tr:hover {
  background: #f9fafb;
}

.status-badge {
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.status-badge.ativo {
  background: #d1fae5;
  color: var(--success-color);
}

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

.status-badge.atraso {
  background: #fee2e2;
  color: var(--danger-color);
}

.action-buttons {
  display: flex;
  gap: 4px;
}

.btn-icon {
  padding: 6px;
  min-width: auto;
}

/* ===== PAGINATION ===== */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

.pagination-info {
  color: var(--gray-color);
  font-size: 14px;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ===== TEMPLATES ===== */
.templates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 20px;
}

.template-card {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.template-card h3 {
  background: var(--bg-secondary);
  padding: 16px 20px;
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--dark-color);
}

.template-content {
  padding: 20px;
}

.template-content p {
  color: var(--gray-color);
  line-height: 1.5;
  margin-bottom: 16px;
}

.copy-btn {
  margin: 0 20px 20px;
  width: calc(100% - 40px);
}

/* ===== REPORTS ===== */
.reports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
}

.report-card {
  background: white;
  padding: 24px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.report-card h3 {
  font-size: 18px;
  font-weight: 500;
  color: var(--dark-color);
  margin-bottom: 20px;
}

.report-metrics {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.report-metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.metric-label {
  color: var(--gray-color);
  font-size: 14px;
}

.metric-value {
  font-weight: 600;
  font-size: 16px;
}

.metric-value.success {
  color: var(--success-color);
}

.metric-value.danger {
  color: var(--danger-color);
}

/* ===== MODAL ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
}

.modal-content {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 600px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  font-size: 20px;
  font-weight: 500;
  color: var(--dark-color);
}

.modal-close {
  background: none;
  border: none;
  color: var(--gray-color);
  cursor: pointer;
  padding: 4px;
  font-size: 20px;
}

.modal-body {
  padding: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.modal-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  padding: 16px 20px;
  z-index: 1001;
  transition: all 0.3s ease;
}

.toast.show {
  display: block;
}

.toast-content {
  display: flex;
  align-items: center;
  gap: 12px;
}

.toast-content i {
  color: var(--success-color);
}

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

  .sidebar {
    width: 100%;
    height: auto;
  }

  .main-header {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }

  .header-right {
    width: 100%;
    justify-content: flex-start;
  }

  .section-header {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }

  .section-controls {
    width: 100%;
    flex-wrap: wrap;
  }

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

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

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

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

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

  .clients-table-container {
    overflow-x: scroll;
  }

  .pagination {
    flex-direction: column;
    gap: 12px;
  }
}

/* ===== UTILITIES ===== */
.text-center {
  text-align: center;
}

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

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

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

.mt-4 {
  margin-top: 16px;
}

.mb-4 {
  margin-bottom: 16px;
}

.p-4 {
  padding: 16px;
}

.border-radius {
  border-radius: var(--border-radius);
}
.chart-container {
    position: relative;
    height: 320px; /* Você pode ajustar esta altura se achar necessário */
    width: 100%;
}