/* Reset e configurações base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  min-height: 100vh;
  color: #333;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

/* Container principal */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  position: relative;
  z-index: 1;
}

/* Header */
.header {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.header h1 {
  font-size: 3rem;
  font-weight: 700;
  background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  text-shadow: 0 4px 8px rgba(0,0,0,0.1);
  letter-spacing: -0.02em;
  position: relative;
}

.header h1::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, transparent 0%, #ffffff 50%, transparent 100%);
  border-radius: 2px;
}

.subtitle {
  color: rgba(255,255,255,0.95);
  font-size: 1.1rem;
  font-weight: 400;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Aviso sobre armazenamento local */
.storage-notice {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  border-left: 6px solid #17a2b8;
  box-shadow: 
    0 8px 32px rgba(0,0,0,0.1),
    0 4px 16px rgba(23, 162, 184, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.storage-notice::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(23, 162, 184, 0.3) 50%, transparent 100%);
}

.notice-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.notice-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #333;
  margin: 0 0 0.5rem 0;
}

.notice-content p {
  font-size: 0.9rem;
  color: #666;
  margin: 0;
  line-height: 1.5;
}

.notice-close {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: #6c757d;
  padding: 0.5rem;
  border-radius: 50%;
  transition: all 0.3s ease;
  flex-shrink: 0;
  align-self: flex-start;
  margin-top: -0.5rem;
  margin-right: -0.5rem;
}

.notice-close:hover {
  background: rgba(0, 0, 0, 0.1);
  color: #333;
  transform: scale(1.1);
}

.storage-notice.hidden {
  display: none;
}

/* Main content */
.main {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: 
    0 20px 60px rgba(0,0,0,0.1),
    0 8px 32px rgba(102, 126, 234, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  position: relative;
  overflow: hidden;
}

.main::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(102, 126, 234, 0.3) 50%, transparent 100%);
}

/* Gerenciador de Categorias */
.categories-manager {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border-radius: 16px;
  border: 1px solid rgba(102, 126, 234, 0.1);
  box-shadow: 
    0 4px 20px rgba(0,0,0,0.05),
    0 2px 10px rgba(102, 126, 234, 0.05);
  position: relative;
  overflow: hidden;
}

.categories-manager::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.categories-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.categories-header h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #333;
  margin: 0;
}

.categories-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.category-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.8rem;
  border-radius: 16px;
  font-size: 0.8rem;
  font-weight: 500;
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  border: 2px solid transparent;
}

.category-tag:hover {
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(0,0,0,0.15);
}

.category-tag.active {
  border-color: rgba(255,255,255,0.5);
  box-shadow: 0 0 0 2px rgba(255,255,255,0.3);
}

.category-color {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.3);
}

.category-actions {
  display: flex;
  gap: 0.2rem;
  margin-left: 0.4rem;
}

.category-action {
  background: rgba(255,255,255,0.2);
  border: none;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.6rem;
  color: white;
  transition: all 0.3s ease;
}

.category-action:hover {
  background: rgba(255,255,255,0.3);
  transform: scale(1.1);
}

/* Formulário de tarefas */
.task-form {
  margin-bottom: 1.5rem;
}

.input-group {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.task-input {
  flex: 1;
  padding: 1rem 1.25rem;
  border: 2px solid #e1e5e9;
  border-radius: 12px;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  height: 48px;
  min-width: 200px;
}

.task-input:focus {
  outline: none;
  border-color: #667eea;
  background: white;
  box-shadow: 
    0 0 0 3px rgba(102, 126, 234, 0.1),
    0 4px 12px rgba(102, 126, 234, 0.1);
  transform: translateY(-1px);
}

.task-input::placeholder {
  color: #6c757d;
}

.category-select {
  padding: 0.75rem 1.25rem;
  border: 2px solid #e1e5e9;
  border-radius: 12px;
  font-size: 1rem;
  font-family: inherit;
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 180px;
  width: 180px;
  height: 48px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.category-select:focus {
  outline: none;
  border-color: #667eea;
  background: white;
  box-shadow: 
    0 0 0 3px rgba(102, 126, 234, 0.1),
    0 4px 12px rgba(102, 126, 234, 0.1);
  transform: translateY(-1px);
}

/* Filtros */
.filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border-radius: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
  border: 1px solid rgba(102, 126, 234, 0.1);
  box-shadow: 
    0 4px 20px rgba(0,0,0,0.05),
    0 2px 10px rgba(102, 126, 234, 0.05);
  position: relative;
  overflow: hidden;
}

.filters::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-width: 150px;
  flex: 1;
}

.filter-group label {
  font-size: 0.8rem;
  font-weight: 500;
  color: #495057;
}

.filter-select {
  padding: 0.5rem 1rem;
  border: 2px solid #e1e5e9;
  border-radius: 10px;
  font-size: 0.9rem;
  font-family: inherit;
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  height: 42px;
  min-width: 140px;
}

.filter-select:focus {
  outline: none;
  border-color: #667eea;
  background: white;
  box-shadow: 
    0 0 0 3px rgba(102, 126, 234, 0.1),
    0 4px 12px rgba(102, 126, 234, 0.1);
  transform: translateY(-1px);
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border: none;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  min-width: 140px;
  height: 48px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
  background: #6c757d;
  color: white;
}

.btn-secondary:hover {
  background: #5a6268;
  transform: translateY(-1px);
}

.btn-danger {
  background: #dc3545;
  color: white;
}

.btn-danger:hover {
  background: #c82333;
  transform: translateY(-1px);
}

.btn-icon {
  font-size: 1rem;
  font-weight: bold;
}

/* Estatísticas */
.task-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border-radius: 16px;
  border: 1px solid rgba(102, 126, 234, 0.1);
  box-shadow: 
    0 4px 20px rgba(0,0,0,0.05),
    0 2px 10px rgba(102, 126, 234, 0.05);
  position: relative;
  overflow: hidden;
}

.task-stats::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.stat {
  text-align: center;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  border: 1px solid rgba(255, 255, 255, 0.5);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.stat:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  background: rgba(255, 255, 255, 0.95);
}

.stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 600;
  color: #667eea;
  margin-bottom: 0.2rem;
}

.stat-label {
  font-size: 0.8rem;
  color: #6c757d;
  font-weight: 500;
}

/* Lista de tarefas */
.task-list-container {
  margin-bottom: 1.5rem;
}

.task-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.task-list-container h2 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #333;
  margin: 0;
}

.task-count {
  font-size: 0.8rem;
  color: #6c757d;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  background: #e9ecef;
  border-radius: 16px;
}

.task-list {
  list-style: none;
  margin-bottom: 0.75rem;
}

.task-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 249, 250, 0.9) 100%);
  border-radius: 16px;
  border-left: 4px solid #667eea;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  animation: slideIn 0.3s ease;
  box-shadow: 
    0 4px 16px rgba(0,0,0,0.05),
    0 2px 8px rgba(102, 126, 234, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.5);
  position: relative;
  overflow: hidden;
}

.task-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.task-item:hover {
  transform: translateY(-2px);
  box-shadow: 
    0 8px 25px rgba(0,0,0,0.1),
    0 4px 15px rgba(102, 126, 234, 0.1);
}

.task-item:hover::before {
  opacity: 1;
}

.task-item.completed {
  opacity: 0.7;
  border-left-color: #28a745;
  background: #f8fff9;
}

.task-item.completed .task-text {
  text-decoration: line-through;
  color: #6c757d;
}

.task-checkbox {
  width: 18px;
  height: 18px;
  border: 2px solid #667eea;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
  background: white;
  position: relative;
}

.task-checkbox:checked {
  background: #667eea;
}

.task-checkbox:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 10px;
  font-weight: bold;
}

.task-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.task-text {
  font-weight: 500;
  color: #333;
  word-break: break-word;
  font-size: 0.9rem;
}

.task-time {
  font-size: 0.7rem;
  color: #6c757d;
}

.task-category {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.2rem 0.4rem;
  border-radius: 10px;
  font-size: 0.6rem;
  font-weight: 500;
  color: white;
  margin-top: 0.2rem;
  max-width: fit-content;
}

.task-actions {
  display: flex;
  gap: 0.4rem;
}

.btn-task {
  padding: 0.5rem 0.75rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.8rem;
  font-weight: 500;
  min-width: 80px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-edit {
  background: #ffc107;
  color: #212529;
}

.btn-edit:hover {
  background: #e0a800;
}

.btn-category {
  background: #17a2b8;
  color: white;
}

.btn-category:hover {
  background: #138496;
}

.btn-delete {
  background: #dc3545;
  color: white;
}

.btn-delete:hover {
  background: #c82333;
}

/* Estado vazio */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: #6c757d;
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state p {
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.empty-state p:last-child {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Ações */
.actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Seção de Backup e Restauração */
.backup-section {
  margin-top: 2rem;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 249, 250, 0.95) 100%);
  border-radius: 20px;
  box-shadow: 
    0 8px 32px rgba(0,0,0,0.1),
    0 4px 16px rgba(102, 126, 234, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  position: relative;
  overflow: hidden;
}

.backup-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.backup-section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
  text-align: center;
}

.backup-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.backup-actions .btn {
  min-width: 140px;
}

.btn-info {
  background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-size: 0.9rem;
}

.btn-info:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(23, 162, 184, 0.3);
}

.form-input {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid #e9ecef;
  border-radius: 8px;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  background: white;
  height: 48px;
  min-width: 200px;
}

.form-input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.backup-preview {
  margin-top: 1rem;
  padding: 1rem;
  background: #f8f9fa;
  border-radius: 8px;
  border: 1px solid #e9ecef;
}

.backup-preview h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.5rem;
}

.backup-preview-content {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.5;
}

.backup-preview-content .backup-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.backup-preview-content .backup-info-item {
  display: flex;
  justify-content: space-between;
  padding: 0.25rem 0;
}

.backup-preview-content .backup-info-label {
  font-weight: 500;
  color: #333;
}

.backup-preview-content .backup-info-value {
  color: #666;
}

/* Estilos para checkbox personalizado */
.checkbox-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1rem 0;
  padding: 1rem;
  background: #f8f9fa;
  border-radius: 8px;
  border: 1px solid #e9ecef;
  transition: all 0.3s ease;
}

.checkbox-container:hover {
  background: #e9ecef;
  border-color: #667eea;
}

.checkbox-container label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  font-weight: 500;
  color: #333;
  margin: 0;
  user-select: none;
}

.checkbox-container input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid #667eea;
  border-radius: 4px;
  background: white;
  cursor: pointer;
  position: relative;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.checkbox-container input[type="checkbox"]:checked {
  background: #667eea;
  border-color: #667eea;
}

.checkbox-container input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 14px;
  font-weight: bold;
  line-height: 1;
}

.checkbox-container input[type="checkbox"]:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.checkbox-container input[type="checkbox"]:hover {
  border-color: #5a67d8;
  transform: scale(1.05);
}

.checkbox-container input[type="checkbox"]:checked:hover {
  background: #5a67d8;
  border-color: #5a67d8;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  z-index: 1000;
  animation: fadeIn 0.3s ease;
}

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

.modal-content {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 249, 250, 0.95) 100%);
  border-radius: 20px;
  width: 90%;
  max-width: 550px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 
    0 25px 50px rgba(0,0,0,0.25),
    0 10px 30px rgba(102, 126, 234, 0.15);
  animation: slideIn 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.3);
  position: relative;
  overflow: hidden;
}

.modal-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid #e9ecef;
}

.modal-header h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #333;
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #6c757d;
  padding: 0.5rem;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.modal-close:hover {
  background: #f8f9fa;
  color: #333;
}

.modal-body {
  padding: 1.5rem;
}

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

.form-group label {
  display: block;
  font-weight: 500;
  color: #333;
  margin-bottom: 0.5rem;
}

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid #e1e5e9;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s ease;
  height: 48px;
  min-width: 200px;
}

.form-group input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid #e1e5e9;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: white;
  cursor: pointer;
  transition: all 0.3s ease;
  height: 48px;
  min-width: 200px;
}

.form-select:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.task-preview {
  margin-top: 1.5rem;
  padding: 1rem;
  background: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid #667eea;
}

.task-preview h4 {
  margin: 0 0 0.5rem 0;
  font-size: 1rem;
  color: #333;
}

.task-preview p {
  margin: 0;
  color: #666;
  font-style: italic;
}

.color-picker {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.color-picker input[type="color"] {
  width: 60px;
  height: 40px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: none;
}

.color-preview {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 2px solid #e1e5e9;
  display: inline-block;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  padding: 1.5rem;
  border-top: 1px solid #e9ecef;
}

/* Toast notifications */
.toast {
  position: fixed;
  top: 2rem;
  right: 2rem;
  padding: 1.25rem 1.75rem;
  border-radius: 12px;
  color: white;
  font-weight: 600;
  transform: translateX(400px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 9999;
  max-width: 350px;
  box-shadow: 
    0 8px 32px rgba(0,0,0,0.15),
    0 4px 16px rgba(102, 126, 234, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  overflow: hidden;
}

.toast::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.toast.show {
  transform: translateX(0);
}

.toast.success {
  background: #28a745;
}

.toast.error {
  background: #dc3545;
}

.toast.info {
  background: #17a2b8;
}

/* Animações */
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Responsividade */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }
  
  .header h1 {
    font-size: 2rem;
  }
  
  .storage-notice {
    flex-direction: column;
    text-align: center;
    gap: 0.75rem;
  }
  
  .notice-icon {
    margin-top: 0;
  }
  
  .notice-close {
    align-self: center;
    margin-top: 0;
    margin-right: 0;
  }
  
  .main {
    padding: 1.5rem;
  }
  
  .input-group {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .category-select {
    min-width: auto;
    width: 100%;
  }

  .task-input {
    min-width: auto;
  }

  .btn {
    min-width: auto;
    width: 100%;
  }
  
  .task-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .task-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  
  .task-actions {
    align-self: flex-end;
  }
  
  .actions {
    flex-direction: column;
  }
  
  .filters {
    flex-direction: column;
  }
  
  .filter-group {
    min-width: auto;
  }
  
  .task-list-header {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }
  
  .categories-header {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }
  
  .modal-content {
    width: 95%;
    margin: 1rem;
  }
  
  .toast {
    right: 1rem;
    left: 1rem;
    transform: translateY(-100px);
  }
  
  .toast.show {
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  .task-stats {
    grid-template-columns: 1fr;
  }
  
  .stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }
  
  .stat-number {
    margin-bottom: 0;
  }
  
  .categories-list {
    flex-direction: column;
  }
  
  .category-tag {
    justify-content: space-between;
  }

  .backup-section {
    padding: 1rem;
  }

  .backup-actions {
    flex-direction: column;
    align-items: center;
  }

  .backup-actions .btn {
    width: 100%;
    max-width: 200px;
  }

  .checkbox-container {
    padding: 0.75rem;
  }

  .checkbox-container label {
    font-size: 0.9rem;
  }

  .form-group input,
  .form-select,
  .form-input {
    min-width: auto;
  }
}