:root {
  --primary: #007bff;
  --primary-light: #b3d9ff;
  --primary-dark: #0056b3;
  --secondary: #FF9800;
  --secondary-light: #FFE0B2;
  --secondary-dark: #F57C00;
  --success: #28a745;
  --danger: #dc3545;
  --warning: #ffc107;
  --info: #17a2b8;
  --light: #F5F5F5;
  --dark: #212121;
  --gray: #6c757d;
  --white: #FFFFFF;
}

body {
  font-family: 'Roboto', sans-serif;
  background-color: #f8f9fa;
  color: #212121;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-tap-highlight-color: transparent;
}

/* Layout */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: #f8f9fa;
  color: #212121;
}

.app-content {
  flex: 1;
  padding-bottom: 70px; /* Espaço para a barra de navegação inferior */
}

/* Header */
.app-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: 12px 16px;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.app-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 500;
}

.btn-icon {
  background: none;
  border: none;
  color: white;
  font-size: 1.25rem;
  padding: 8px;
  border-radius: 50%;
  transition: background-color 0.3s;
}

.btn-icon:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.app-header .user-menu {
  position: relative;
}

.app-header .user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--primary-dark);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s;
}

.app-header .user-avatar:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  min-width: 200px;
  z-index: 1001;
  padding: 8px 0;
  margin-top: 8px;
}

.dropdown-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  color: #212121;
  text-decoration: none;
  transition: background-color 0.3s;
}

.dropdown-item:hover {
  background-color: #f8f9fa;
  color: var(--primary);
}

.dropdown-item i {
  margin-right: 12px;
  width: 16px;
}

.dropdown-divider {
  height: 1px;
  background-color: #e9ecef;
  margin: 8px 0;
}

/* Bottom Navigation */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: white;
  display: flex;
  justify-content: space-around;
  padding: 8px 0;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--gray);
  text-decoration: none;
  padding: 8px 0;
  flex: 1;
  transition: color 0.3s;
  position: relative;
}

.bottom-nav-item.active {
  color: var(--primary);
}

.bottom-nav-icon {
  font-size: 1.5rem;
  margin-bottom: 4px;
  position: relative;
}

.bottom-nav-label {
  font-size: 0.75rem;
}

.badge-sm {
  font-size: 0.6rem;
  padding: 2px 4px;
  border-radius: 50%;
  min-width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Cards */
.card {
  background-color: white;
  border-radius: 15px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  margin-bottom: 16px;
  color: #212121;
  transition: transform 0.3s, box-shadow 0.3s;
  border: none;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

.card-header {
  padding: 20px;
  border-bottom: 1px solid #e9ecef;
  font-weight: 600;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  color: #212121;
}

.card-header i {
  margin-right: 12px;
  color: var(--primary);
  font-size: 1.25rem;
}

.card-body {
  padding: 20px;
  background-color: white;
  color: #212121;
}

.card-footer {
  padding: 16px 20px;
  border-top: 1px solid #e9ecef;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #f8f9fa;
}

/* Stats Cards */
.stats-card {
  background: linear-gradient(135deg, white, #f8f9fa);
  border-radius: 15px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s;
  border: none;
}

.stats-card:hover {
  transform: translateY(-2px);
}

.stats-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 15px;
  font-size: 1.5rem;
  color: white;
}

.stats-number {
  font-size: 2rem;
  font-weight: 700;
  margin: 10px 0 5px;
}

.stats-label {
  color: var(--gray);
  font-size: 0.9rem;
  font-weight: 500;
}

/* Lista de itens */
.list-item {
  display: flex;
  padding: 16px;
  border-bottom: 1px solid #e9ecef;
  text-decoration: none;
  color: inherit;
  transition: background-color 0.3s;
}

.list-item:last-child {
  border-bottom: none;
}

.list-item:hover {
  background-color: #f8f9fa;
}

.list-item-icon {
  margin-right: 16px;
  font-size: 1.5rem;
  color: var(--primary);
  display: flex;
  align-items: center;
}

.list-item-content {
  flex: 1;
}

.list-item-title {
  font-weight: 500;
  margin-bottom: 4px;
}

.list-item-subtitle {
  color: var(--gray);
  font-size: 0.875rem;
}

.list-item-action {
  color: var(--primary);
  display: flex;
  align-items: center;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  margin-right: 8px;
}

.badge-primary {
  background-color: var(--primary-light);
  color: var(--primary-dark);
}

.badge-secondary {
  background-color: var(--secondary-light);
  color: var(--secondary-dark);
}

.badge-success {
  background-color: rgba(40, 167, 69, 0.1);
  color: var(--success);
}

.badge-danger {
  background-color: rgba(220, 53, 69, 0.1);
  color: var(--danger);
}

.badge-warning {
  background-color: rgba(255, 193, 7, 0.1);
  color: #856404;
}

.badge-info {
  background-color: rgba(23, 162, 184, 0.1);
  color: var(--info);
}

/* Formulários */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #212121;
}

.form-control,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="date"],
input[type="time"],
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e9ecef;
  border-radius: 10px;
  font-size: 1rem;
  transition: all 0.3s;
  background-color: #FFFFFF;
  color: #212121;
}

.form-control:focus,
input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  outline: none;
  background-color: #FFFFFF;
  color: #212121;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

select.form-select,
select.form-control {
  background-color: #FFFFFF;
  color: #212121;
}

option {
  background-color: #FFFFFF;
  color: #212121;
}

/* Botões */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  border: none;
  text-decoration: none;
  line-height: 1.5;
}

.btn:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 8px rgba(0, 123, 255, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 12px rgba(0, 123, 255, 0.4);
  color: white;
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  color: white;
}

.btn-success {
  background: linear-gradient(135deg, var(--success), #1e7e34);
  color: white;
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger), #c82333);
  color: white;
}

.btn-warning {
  background: linear-gradient(135deg, var(--warning), #e0a800);
  color: #212529;
}

.btn-info {
  background: linear-gradient(135deg, var(--info), #138496);
  color: white;
}

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

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

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

.btn-outline-secondary:hover {
  background-color: var(--gray);
  color: white;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.125rem;
}

.btn-block {
  display: block;
  width: 100%;
}

/* Utilitários */
.text-primary { color: var(--primary) !important; }
.text-secondary { color: var(--secondary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-info { color: var(--info) !important; }
.text-light { color: var(--light) !important; }
.text-dark { color: var(--dark) !important; }
.text-gray { color: var(--gray) !important; }
.text-muted { color: var(--gray) !important; }

.bg-primary { background-color: var(--primary) !important; }
.bg-secondary { background-color: var(--secondary) !important; }
.bg-success { background-color: var(--success) !important; }
.bg-danger { background-color: var(--danger) !important; }
.bg-warning { background-color: var(--warning) !important; }
.bg-info { background-color: var(--info) !important; }
.bg-light { background-color: var(--light) !important; }
.bg-dark { background-color: var(--dark) !important; }
.bg-white { background-color: var(--white) !important; }

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

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 8px !important; }
.mb-2 { margin-bottom: 16px !important; }
.mb-3 { margin-bottom: 24px !important; }
.mb-4 { margin-bottom: 32px !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 8px !important; }
.mt-2 { margin-top: 16px !important; }
.mt-3 { margin-top: 24px !important; }
.mt-4 { margin-top: 32px !important; }

.mx-auto { margin-left: auto; margin-right: auto; }

.p-0 { padding: 0 !important; }
.p-1 { padding: 8px !important; }
.p-2 { padding: 16px !important; }
.p-3 { padding: 24px !important; }
.p-4 { padding: 32px !important; }

.rounded { border-radius: 8px; }
.rounded-circle { border-radius: 50%; }

.shadow-sm { box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); }
.shadow { box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); }
.shadow-lg { box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1); }

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

.fade-in {
  animation: fadeIn 0.3s ease-in-out;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.slide-up {
  animation: slideUp 0.3s ease-out;
}

/* Status de conexão */
.connection-status {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 8px;
  text-align: center;
  font-size: 0.875rem;
  z-index: 2000;
  transition: transform 0.3s;
  background-color: #333;
  color: white;
}

.connection-status.online {
  background-color: rgba(40, 167, 69, 0.9);
  color: white;
  transform: translateY(-100%);
}

.connection-status.offline {
  background-color: rgba(220, 53, 69, 0.9);
  color: white;
  transform: translateY(0);
}

/* Loading spinner */
.spinner {
  width: 40px;
  height: 40px;
  margin: 24px auto;
  border: 4px solid rgba(0, 123, 255, 0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Alertas */
.alert {
  padding: 16px;
  margin-bottom: 16px;
  border-radius: 10px;
  border: none;
  display: flex;
  align-items: center;
}

.alert-success {
  background-color: rgba(40, 167, 69, 0.1);
  color: var(--success);
  border-left: 4px solid var(--success);
}

.alert-danger {
  background-color: rgba(220, 53, 69, 0.1);
  color: var(--danger);
  border-left: 4px solid var(--danger);
}

.alert-warning {
  background-color: rgba(255, 193, 7, 0.1);
  color: #856404;
  border-left: 4px solid var(--warning);
}

.alert-info {
  background-color: rgba(23, 162, 184, 0.1);
  color: var(--info);
  border-left: 4px solid var(--info);
}

.btn-close {
  background: none;
  border: none;
  font-size: 1.25rem;
  margin-left: auto;
  opacity: 0.5;
  cursor: pointer;
}

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

/* Responsividade */
@media (min-width: 768px) {
  .container {
    max-width: 720px;
    margin: 0 auto;
  }
  
  .bottom-nav {
    display: none;
  }
  
  .app-content {
    padding-bottom: 20px;
  }
}

/* Tema escuro */
@media (prefers-color-scheme: dark) {
  body {
    background-color: #121212;
    color: #f5f5f5;
  }
  
  .app-container {
    background-color: #121212;
  }
  
  .card, .bottom-nav {
    background-color: #1e1e1e;
  }
  
  .card-header, .list-item {
    border-color: #333;
    background-color: #2c2c2c;
  }
  
  .form-control {
    background-color: #2c2c2c;
    border-color: #444;
    color: #f5f5f5;
  }
  
  .text-dark {
    color: #f5f5f5 !important;
  }
  
  .bg-light {
    background-color: #1e1e1e !important;
  }
  
  .bg-white {
    background-color: #1e1e1e !important;
  }
  
  .dropdown-menu {
    background-color: #2c2c2c;
    border: 1px solid #444;
  }
  
  .dropdown-item {
    color: #f5f5f5;
  }
  
  .dropdown-item:hover {
    background-color: #3c3c3c;
  }
}