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

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600&display=swap');

:root {
  --primary-color: #2D8473;
  --primary-dark: #236B5C;
  --success-color: #10b981;
  --error-color: #ef4444;
  --warning-color: #f59e0b;
  --bg-color: #f8fafc;
  --text-color: #1e293b;
  --border-color: #e2e8f0;
  --card-bg: #F7F7F7;
  --sidebar-width: 250px;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

/* Layout com Sidebar */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar - Desktop */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--card-bg);
  box-shadow: 1px 0 2px rgba(0, 0, 0, 0.05);
  position: fixed;
  left: 0;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  z-index: 1000;
  transition: transform 0.3s ease;
  border-right: 1px solid #046E60;
}

.sidebar-header {
  padding: 2rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  display: block;
  text-align: center;
}

.logo img {
  max-width: 140px;
  height: auto;
}

.sidebar-nav {
  flex: 1;
  padding: 1.5rem 0;
  overflow-y: auto;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s;
  border-left: 3px solid transparent;
  gap: 0.75rem;
}

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

.sidebar-nav a:hover {
  background-color: #f1f5f9;
  border-left-color: var(--primary-color);
  color: var(--primary-color);
}

.sidebar-nav a.active {
  background-color: #026C5E;
  border-left-color: #026C5E;
  color: white;
}

#admin-menu a {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s;
  border-left: 3px solid transparent;
  gap: 0.75rem;
}

#admin-menu a i {
  width: 20px;
  text-align: center;
}

#admin-menu a:hover {
  background-color: #f1f5f9;
  border-left-color: var(--primary-color);
  color: var(--primary-color);
}

#admin-menu a.active {
  background-color: #026C5E;
  border-left-color: #026C5E;
  color: white;
}

.sidebar-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.user-info {
  margin-bottom: 1rem;
}

.user-name {
  font-weight: 600;
  color: var(--text-color);
  display: block;
  margin-bottom: 0.25rem;
}

.user-email {
  font-size: 0.875rem;
  color: #64748b;
}

/* Login Page */
.login-container {
  width: 100%;
  max-width: 500px;
  padding: 2rem;
}

.login-card {
  background-color: var(--card-bg);
  border-radius: 0.75rem;
  padding: 2.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  border: 1px solid #046E60;
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo {
  max-width: 160px;
  height: auto;
  margin: 0 auto 1.5rem auto;
  display: block;
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 2rem;
  width: calc(100% - var(--sidebar-width));
  background-color: #F0F0F0;
}
/* Admin Form Card */
.admin-form-card {
  background-color: var(--card-bg);
  border-radius: 0.75rem;
  padding: 2rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  margin-bottom: 2rem;
  border-top: 4px solid var(--primary-color);
}

/* Admin Questão Card */
.questao-admin-card {
  background-color: var(--card-bg);
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--primary-color);
  transition: all 0.3s ease;
}

.questao-admin-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
}

.questao-admin-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #f1f5f9;
}

.questao-admin-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

/* Admin Usuário Card */
.usuario-admin-card {
  background-color: var(--card-bg);
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--primary-color);
  transition: all 0.3s ease;
}

.usuario-admin-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
}

.usuario-admin-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #f1f5f9;
}

.usuario-admin-header h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.usuario-admin-header p {
  color: #64748b;
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.usuario-admin-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}
/* Menu Mobile - Botão Flutuante */
.mobile-menu-btn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  border: none;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
  cursor: pointer;
  z-index: 1001;
  font-size: 1.5rem;
  transition: all 0.3s;
}

.mobile-menu-btn:hover {
  background-color: var(--primary-dark);
  transform: scale(1.1);
}

.mobile-menu-btn.active {
  background-color: var(--error-color);
}

/* Overlay para mobile */
.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

.mobile-overlay.active {
  display: block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

/* Header (usado apenas em páginas sem sidebar) */
.header {
  background-color: var(--card-bg);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 1rem 0;
  margin-bottom: 2rem;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav a:hover {
  color: var(--primary-color);
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
}

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

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

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

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

.btn-secondary {
  background-color: #64748b;
  color: white;
}

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

.btn-logout {
  background-color: var(--error-color);
  color: white;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  width: 100%;
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Cards */
.card {
  background-color: var(--card-bg);
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  margin-bottom: 1.5rem;
  border: 1px solid #046E60;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-color);
}

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

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

.form-input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 1rem;
  transition: all 0.3s;
  background-color: white;
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.form-input:hover {
  border-color: var(--primary-color);
  box-shadow: 0 1px 4px rgba(45, 132, 115, 0.1);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(45, 132, 115, 0.1);
  background-color: #fafbfc;
}

/* Filter Container */
.filters-container {
  background-color: var(--card-bg);
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  border: 1px solid #046E60;
}

/* Filter Section */
.filter-section {
  margin-bottom: 1.5rem;
  padding: 1rem;
  background-color: var(--card-bg);
  border-radius: 0.5rem;
}

.filter-section:last-child {
  margin-bottom: 0;
}

.filter-section-title {
  font-weight: 600;
  color: var(--primary-color);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
}

/* Filter Buttons Group */
.filter-buttons {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.filter-btn {
  padding: 0.6rem 1.2rem;
  border: 2px solid var(--border-color);
  background-color: white;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  white-space: nowrap;
  color: var(--text-color);
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.filter-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background-color: #f8fafc;
}

.filter-btn.active {
  background-color: var(--success-color);
  color: white;
  border-color: var(--success-color);
  box-shadow: 0 2px 6px rgba(16, 185, 129, 0.3);
}

/* Filter Checkbox */
.filter-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  padding: 0.6rem 1.2rem;
  border: 2px solid var(--border-color);
  border-radius: 0.5rem;
  transition: all 0.3s;
  background-color: white;
  font-weight: 500;
}

.filter-checkbox-label:hover {
  border-color: var(--primary-color);
  background-color: #f8fafc;
}

.filter-checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary-color);
}

.filter-checkbox-label input[type="checkbox"]:checked + span {
  color: var(--primary-color);
}

/* Filter Select Group */
.filter-select-group {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  flex-wrap: wrap;
}

.filter-select-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  flex: 1;
  min-width: 280px;
}

.filter-select-wrapper label {
  font-weight: 600;
  color: var(--text-color);
  font-size: 0.9rem;
}

.filter-select-wrapper select {
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 0.95rem;
  background-color: white;
  cursor: pointer;
  transition: all 0.3s;
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.filter-select-wrapper select:hover {
  border-color: var(--primary-color);
  box-shadow: 0 1px 4px rgba(45, 132, 115, 0.1);
}

.filter-select-wrapper select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(45, 132, 115, 0.1);
}

/* Favorite Button */
.btn-favorito {
  background: none;
  border: 2px solid var(--border-color);
  cursor: pointer;
  padding: 0.6rem 1.2rem;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: #64748b;
  line-height: 1;
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.btn-favorito:hover {
  border-color: #fbbf24;
  background-color: #fef3c7;
  color: #fbbf24;
  transform: scale(1.05);
  box-shadow: 0 2px 8px rgba(251, 191, 36, 0.2);
}

.btn-favorito:active {
  transform: scale(0.95);
}

.btn-favorito .estrela {
  display: inline-block;
  transition: all 0.3s ease;
}

.btn-favorito[data-favorito="true"] {
  border-color: #fbbf24;
  background-color: #fef3c7;
  color: #fbbf24;
  box-shadow: 0 2px 6px rgba(251, 191, 36, 0.25);
  animation: favoriteHeartbeat 0.4s ease-in-out;
}

.btn-favorito[data-favorito="true"] .estrela {
  filter: drop-shadow(0 1px 2px rgba(251, 191, 36, 0.4));
}

@keyframes favoriteHeartbeat {
  0% { transform: scale(1); }
  25% { transform: scale(1.15); }
  50% { transform: scale(1); }
  75% { transform: scale(1.1); }
  100% { transform: scale(1); }
}
.questao-card {
  background-color: var(--card-bg);
  border-radius: 0.75rem;
  padding: 2rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--primary-color);
  transition: all 0.3s ease;
}

.questao-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
}

.questao-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid #f1f5f9;
}

.questao-numero {
  font-weight: 700;
  color: var(--primary-color);
  font-size: 1.1rem;
  letter-spacing: 0.5px;
}

.questao-categoria {
  font-size: 0.8rem;
  color: white;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  padding: 0.4rem 0.9rem;
  border-radius: 0.35rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.questao-enunciado {
  font-size: 1.05rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  line-height: 1.7;
  color: var(--text-color);
}

.alternativas {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.alternativa {
  padding: 0.75rem;
  border: 2px solid var(--border-color);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.3s;
  background-color: white;
}

.alternativa:hover {
  border-color: var(--primary-color);
  background-color: #f0f9ff;
}

.alternativa.selected {
  border-color: var(--primary-color);
  background-color: #dbeafe;
}

.alternativa.correta {
  border-color: var(--success-color);
  background-color: #d1fae5;
}

.alternativa.incorreta {
  border-color: var(--error-color);
  background-color: #fee2e2;
}

.alternativa.strikethrough {
  border-color: #9ca3af;
  background-color: #f3f4f6;
  text-decoration: line-through;
  color: #6b7280;
  opacity: 0.7;
}

.alternativa-letra {
  font-weight: bold;
  margin-right: 0.5rem;
  color: var(--primary-color);
}

.questao-actions {
  margin-top: 1rem;
  display: flex;
  gap: 0.5rem;
}

.resultado-questao {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 0.5rem;
}

.resultado-questao.acerto {
  background-color: #d1fae5;
  border: 1px solid var(--success-color);
  color: #065f46;
}

.resultado-questao.erro {
  background-color: #fee2e2;
  border: 1px solid var(--error-color);
  color: #991b1b;
}

/* Multi-Select Dropdown Checklist */
.multi-select-dropdown {
  position: relative;
  width: 100%;
}

.multi-select-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background-color: white;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: border-color 0.3s;
  min-height: 46px;
  gap: 0.5rem;
}

.multi-select-header:hover {
  border-color: var(--primary-color);
}

.multi-select-header.active {
  border-color: var(--primary-color);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.multi-select-header-text {
  flex: 1;
  color: var(--text-color);
  font-size: 0.9375rem;
  line-height: 1.4;
  word-break: break-word;
  overflow-wrap: break-word;
}

.multi-select-header-text.placeholder {
  color: #94a3b8;
}

.multi-select-arrow {
  margin-left: 0.5rem;
  transition: transform 0.3s;
  color: #64748b;
  font-size: 0.75rem;
  flex-shrink: 0;
  align-self: flex-start;
  margin-top: 0.25rem;
}

.multi-select-arrow.active {
  transform: rotate(180deg);
}

.multi-select-options {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: white;
  border: 1px solid var(--primary-color);
  border-top: none;
  border-bottom-left-radius: 0.5rem;
  border-bottom-right-radius: 0.5rem;
  max-height: 300px;
  overflow-y: auto;
  z-index: 1000;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  display: none;
  min-width: 100%;
}

.multi-select-options.active {
  display: block;
}

.multi-select-option {
  display: flex;
  align-items: flex-start;
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: background-color 0.2s;
  gap: 0.75rem;
}

.multi-select-option:hover {
  background-color: #f1f5f9;
}

.multi-select-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary-color);
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.multi-select-option label {
  flex: 1;
  cursor: pointer;
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--text-color);
  line-height: 1.4;
  word-break: break-word;
  overflow-wrap: break-word;
}

/* Scrollbar para dropdowns */
.multi-select-options::-webkit-scrollbar {
  width: 8px;
}

.multi-select-options::-webkit-scrollbar-track {
  background: #f1f5f9;
  border-bottom-right-radius: 0.5rem;
}

.multi-select-options::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

.multi-select-options::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Badge para contar seleções */
.selection-badge {
  background-color: var(--primary-color);
  color: white;
  padding: 0.125rem 0.5rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: 0.5rem;
}

/* Paginação */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2rem;
}

.pagination button {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  background-color: white;
  border-radius: 0.25rem;
  cursor: pointer;
  transition: all 0.3s;
}

.pagination button:hover:not(:disabled) {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

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

.pagination .page-info {
  padding: 0.5rem 1rem;
  font-weight: 500;
}

/* Estatísticas */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background-color: var(--card-bg);
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Tabelas */
.table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--card-bg);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

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

.table th {
  background-color: #f1f5f9;
  font-weight: 600;
  color: var(--text-color);
}

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

.table tr:hover {
  background-color: #f8fafc;
}

/* Alerts */
.alert {
  padding: 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}

.alert-success {
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #10b981;
}

.alert-error {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #ef4444;
}

.alert-info {
  background-color: #dbeafe;
  color: #1e40af;
  border: 1px solid #2563eb;
}

/* Loading */
.loading {
  text-align: center;
  padding: 2rem;
  color: #64748b;
}

.spinner {
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

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

/* Timer */
.timer {
  position: fixed;
  top: 20px;
  right: 20px;
  background-color: var(--card-bg);
  padding: 1rem 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  z-index: 1000;
}

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

.timer.danger {
  color: var(--error-color);
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Focus Mode Button */
.focus-mode-btn {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  background-color: var(--primary-color);
  color: white;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.focus-mode-btn:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(45, 132, 115, 0.2);
}

.focus-mode-btn.active {
  background-color: var(--primary-dark);
}

/* Focus Mode Styles */
body.focus-mode .sidebar {
  transform: translateX(-100%);
}

body.focus-mode .main-content {
  margin-left: 0;
  width: 100%;
}

/* Dark mode support for focus mode button */
:root.dark-mode .focus-mode-btn {
  background-color: var(--primary-color);
  color: white;
}

:root.dark-mode .focus-mode-btn:hover {
  background-color: #4db8a8;
}

/* Responsive - Mobile */
@media (max-width: 768px) {
  .focus-mode-btn {
    display: none;
  }

  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
    width: 100%;
    padding: 1rem;
  }

  .mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .header-content {
    flex-direction: column;
    gap: 1rem;
  }

  .nav {
    flex-direction: column;
    gap: 0.5rem;
  }

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

  .timer {
    top: 10px;
    right: 10px;
    font-size: 1.25rem;
    padding: 0.75rem 1rem;
  }

  .questao-card {
    padding: 1rem;
  }

  .questao-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .table {
    font-size: 0.875rem;
  }

  .table th,
  .table td {
    padding: 0.75rem 0.5rem;
  }

  /* Filter responsive */
  .filters-container {
    padding: 1rem;
  }

  .filter-section {
    margin-bottom: 1rem;
  }

  .filter-buttons {
    gap: 0.5rem;
  }

  .filter-btn {
    padding: 0.5rem 0.9rem;
    font-size: 0.85rem;
  }

  .filter-select-group {
    gap: 0.75rem;
    align-items: stretch;
  }

  .filter-select-wrapper {
    min-width: 100%;
    flex: 1 1 100%;
  }

  .filter-select-wrapper select {
    width: 100%;
  }
  
  .multi-select-header {
    min-height: 44px;
  }
}

/* Utility classes */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.hidden {
  display: none;
}

/* Dark Mode Theme */
:root.dark-mode {
  --primary-color: #4db8a8;
  --primary-dark: #3d9a8f;
  --success-color: #34d399;
  --error-color: #f87171;
  --warning-color: #fbbf24;
  --bg-color: #0f172a;
  --text-color: #f1f5f9;
  --border-color: #334155;
  --card-bg: #1e293b;
  --sidebar-width: 250px;
}

:root.dark-mode body {
  background-color: var(--bg-color);
  color: var(--text-color);
}

:root.dark-mode .sidebar {
  background-color: var(--card-bg);
  box-shadow: 1px 0 2px rgba(0, 0, 0, 0.3);
}

:root.dark-mode .sidebar-nav a {
  color: var(--text-color);
}

:root.dark-mode .sidebar-nav a:hover {
  background-color: #0f172a;
  color: var(--primary-color);
}

:root.dark-mode .main-content {
  background-color: #0f172a;
}

:root.dark-mode .card,
:root.dark-mode .questao-card,
:root.dark-mode .admin-form-card,
:root.dark-mode .questao-admin-card,
:root.dark-mode .usuario-admin-card,
:root.dark-mode .login-card,
:root.dark-mode .filter-section {
  background-color: var(--card-bg);
  border-color: var(--border-color);
}

:root.dark-mode .form-input,
:root.dark-mode .form-textarea,
:root.dark-mode select {
  background-color: #0f172a;
  color: var(--text-color);
  border-color: var(--border-color);
}

:root.dark-mode .form-input::placeholder,
:root.dark-mode .form-textarea::placeholder {
  color: #94a3b8;
}

:root.dark-mode .btn-secondary {
  background-color: #334155;
  color: var(--text-color);
}

:root.dark-mode .btn-secondary:hover {
  background-color: #475569;
}

:root.dark-mode .alert {
  border-color: var(--border-color);
}

:root.dark-mode .form-input:focus {
  background-color: #334155;
}

:root.dark-mode .filter-btn {
  background-color: var(--card-bg);
  border-color: var(--border-color);
  color: var(--text-color);
}

:root.dark-mode .filter-btn:hover {
  background-color: #334155;
  border-color: var(--primary-color);
  color: var(--primary-color);
}

:root.dark-mode .filter-checkbox-label {
  background-color: var(--card-bg);
  border-color: var(--border-color);
}

:root.dark-mode .filter-checkbox-label:hover {
  background-color: #334155;
  border-color: var(--primary-color);
}

:root.dark-mode .alternativa {
  background-color: var(--card-bg);
  border-color: var(--border-color);
}

:root.dark-mode .alternativa:hover {
  background-color: #334155;
  border-color: var(--primary-color);
}

:root.dark-mode .alternativa.selected {
  background-color: #1e3a4c;
  border-color: var(--primary-color);
}

:root.dark-mode .alternativa.correta {
  background-color: #1a3a2a;
  border-color: var(--success-color);
}

:root.dark-mode .alternativa.incorreta {
  background-color: #3a1a1a;
  border-color: var(--error-color);
}

:root.dark-mode .alternativa.strikethrough {
  border-color: #4b5563;
  background-color: #2d3142;
  text-decoration: line-through;
  color: #9ca3af;
  opacity: 0.7;
}

:root.dark-mode .resultado-questao.acerto {
  background-color: #1a3a2a;
  border-color: var(--success-color);
  color: #86efac;
}

:root.dark-mode .resultado-questao.erro {
  background-color: #3a1a1a;
  border-color: var(--error-color);
  color: #fca5a5;
}

:root.dark-mode .pagination button {
  background-color: var(--card-bg);
  border-color: var(--border-color);
  color: var(--text-color);
}

:root.dark-mode .pagination button:hover:not(:disabled) {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

:root.dark-mode .table th {
  background-color: #334155;
  color: var(--text-color);
}

:root.dark-mode .table tr:hover {
  background-color: #334155;
}

:root.dark-mode .alert-success {
  background-color: #1a3a2a;
  color: #86efac;
  border-color: var(--success-color);
}

:root.dark-mode .alert-error {
  background-color: #3a1a1a;
  color: #fca5a5;
  border-color: var(--error-color);
}

:root.dark-mode .alert-info {
  background-color: #1a3a4c;
  color: #7dd3fc;
  border-color: var(--primary-color);
}

:root.dark-mode .btn-favorito:hover {
  background-color: #3a2a1a;
  border-color: #fbbf24;
}

:root.dark-mode .btn-favorito[data-favorito="true"] {
  background-color: #3a2a1a;
  border-color: #fbbf24;
}

:root.dark-mode .sidebar-nav a:hover {
  background-color: #334155;
  border-left-color: var(--primary-color);
  color: var(--primary-color);
}

:root.dark-mode #admin-menu a:hover {
  background-color: #334155;
  border-left-color: var(--primary-color);
  color: var(--primary-color);
}

:root.dark-mode .user-email {
  color: #cbd5e1;
}

:root.dark-mode .filter-select-wrapper select {
  background-color: var(--card-bg);
  color: var(--text-color);
  border-color: var(--border-color);
}

:root.dark-mode .multi-select-header {
  background-color: var(--card-bg);
  color: var(--text-color);
  border-color: var(--border-color);
}

:root.dark-mode .multi-select-options {
  background-color: var(--card-bg);
  border-color: var(--primary-color);
}

:root.dark-mode .multi-select-option:hover {
  background-color: #334155;
}

:root.dark-mode .multi-select-option label {
  color: var(--text-color);
}

:root.dark-mode select option {
  background-color: var(--card-bg);
  color: var(--text-color);
}

:root.dark-mode .usuario-admin-header p {
  color: #cbd5e1;
}

:root.dark-mode .loading {
  color: #cbd5e1;
}

:root.dark-mode .questao-header {
  border-bottom-color: var(--border-color);
}

:root.dark-mode .stat-label {
  color: #cbd5e1;
}

/* Light Background Elements - Dark Mode Override */
:root.dark-mode [style*="background-color: #f9fafc"] {
  background-color: var(--card-bg) !important;
}

:root.dark-mode [style*="background-color: #fafbfc"] {
  background-color: var(--card-bg) !important;
}

:root.dark-mode [style*="background-color: #f8fafc"] {
  background-color: var(--card-bg) !important;
}

:root.dark-mode [style*="background-color: #f1f5f9"] {
  background-color: var(--card-bg) !important;
}

:root.dark-mode [style*="background-color: #f0f9ff"] {
  background-color: #1e3a4c !important;
}

:root.dark-mode [style*="background-color: #d1fae5"] {
  background-color: #1a3a2a !important;
}

:root.dark-mode [style*="background-color: #fee2e2"] {
  background-color: #3a1a1a !important;
}

:root.dark-mode [style*="background-color: #fef9f3"] {
  background-color: #3a2a1a !important;
}

:root.dark-mode [style*="background-color: #fef3c7"] {
  background-color: #3a2a1a !important;
}

:root.dark-mode [style*="background-color: #dbeafe"] {
  background-color: #1a3a4c !important;
}

/* Dispositivo correlato - Modo Escuro */
:root.dark-mode [style*="background-color: #f0fdf4"] {
  background-color: #1a3a2a !important;
  color: #cbd5e1 !important;
}

:root.dark-mode [style*="background-color: #fef2f2"] {
  background-color: #3a1a1a !important;
  color: #cbd5e1 !important;
}

/* Theme Toggle Switch */
.theme-toggle {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  gap: 0.75rem;
  margin-top: 1rem;
}

.theme-toggle i {
  width: 20px;
  text-align: center;
  color: var(--text-color);
  font-size: 1rem;
}

.toggle-switch {
  position: relative;
  width: 50px;
  height: 26px;
  background-color: #cbd5e1;
  border: none;
  border-radius: 13px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  padding: 0;
  margin: 0;
}

.toggle-switch.active {
  background-color: var(--primary-color);
}

.toggle-switch::before {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: white;
  top: 2px;
  left: 2px;
  transition: left 0.3s ease;
}

.toggle-switch.active::before {
  left: 26px;
}

.flex {
  display: flex;
}

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

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* Estilos para Gráficos */
.graficos-container {
  display: flex;
  flex-direction: row;
  gap: 2rem;
  margin: 2rem 0;
}

/* Responsividade para tablets e dispositivos menores */
@media (max-width: 1024px) {
  .graficos-container {
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .graficos-container {
    flex-direction: column;
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .graficos-container {
    gap: 1rem;
    margin: 1rem 0;
  }
}