/* Arquivo CSS padrão para padronização do site */

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

/* Cores padrão do sistema */
:root {
  --primary-bg: #f8f9fa;
  --secondary-bg: #ffffff;
  --sidebar-bg: #343a40;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-white: #ffffff;
  --border-color: #dee2e6;
  --hover-bg: #e9ecef;
  --table-header-bg: #495057;
  --table-row-even: #f8f9fa;
  --table-row-hover: #e9ecef;
  --button-primary: #007bff;
  --button-primary-hover: #0056b3;
  --button-success: #28a745;
  --button-success-hover: #218838;
  --button-warning: #ffc107;
  --button-warning-hover: #e0a800;
  --button-danger: #dc3545;
  --button-danger-hover: #c82333;
  --shadow: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-hover: 0 4px 8px rgba(0,0,0,0.15);
}

/* Estilos base do corpo */
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--primary-bg);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Sidebar padrão */
.sidebar {
  width: 240px;
  background-color: var(--sidebar-bg);
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  padding: 20px 15px;
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
  z-index: 1000;
  transition: transform 0.3s ease;
}

.sidebar h2 {
  font-size: 1.25rem;
  color: var(--text-white);
  margin-bottom: 20px;
  text-align: center;
  padding-bottom: 15px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar a {
  display: block;
  padding: 12px 15px;
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  border-radius: 6px;
  margin: 5px 0;
  transition: all 0.3s ease;
  font-size: 0.95rem;
}

.sidebar a:hover {
  background-color: rgba(255,255,255,0.1);
  color: var(--text-white);
  transform: translateX(5px);
}

.sidebar a i {
  margin-right: 10px;
  width: 16px;
  text-align: center;
}

/* Área principal */
.main {
  margin-left: 240px;
  padding: 30px;
  background-color: var(--primary-bg);
  min-height: 100vh;
  flex: 1;
}

/* Cabeçalho */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--border-color);
}

.header h1 {
  color: var(--text-primary);
  font-size: 1.75rem;
  font-weight: 600;
  margin: 0;
}

.welcome {
  display: flex;
  align-items: center;
  color: var(--text-secondary);
  font-size: 1rem;
}

.welcome img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  margin-right: 12px;
}

/* Cards */
.card {
  background-color: var(--secondary-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.3s ease;
}

.card:hover {
  box-shadow: var(--shadow-hover);
}

/* Grid de disciplinas */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  padding: 0;
}

.box {
  background-color: var(--secondary-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  text-decoration: none;
  color: inherit;
}

.box img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.box-title {
  text-align: center;
  padding: 16px;
  font-size: 1.1rem;
  font-weight: 500;
  background-color: var(--secondary-bg);
  color: var(--text-primary);
  border-top: 1px solid var(--border-color);
}

/* Tabelas padrão */
.table-container {
  width: 100%;
  overflow-x: auto;
  margin: 20px 0;
  background-color: var(--secondary-bg);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--secondary-bg);
  color: var(--text-primary);
}

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  background-color: var(--table-header-bg);
  color: var(--text-white);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tr:nth-child(even) {
  background-color: var(--table-row-even);
}

tr:hover {
  background-color: var(--table-row-hover);
}

/* Inputs padrão */
input[type="text"], 
input[type="number"], 
input[type="email"], 
input[type="password"],
select, 
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 0.95rem;
  background-color: var(--secondary-bg);
  color: var(--text-primary);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input[type="text"]:focus, 
input[type="number"]:focus, 
input[type="email"]:focus, 
input[type="password"]:focus,
select:focus, 
textarea:focus {
  outline: none;
  border-color: var(--button-primary);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

/* Botões padrão */
.btn {
  display: inline-block;
  padding: 10px 20px;
  background-color: var(--button-primary);
  color: var(--text-white);
  text-decoration: none;
  border: none;
  border-radius: 4px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  margin: 5px;
}

.btn:hover {
  background-color: var(--button-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: var(--text-white);
}

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

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

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

.btn-warning:hover {
  background-color: var(--button-warning-hover);
  color: var(--text-primary);
}

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

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

/* Container de login */
.login-container {
  background-color: var(--secondary-bg);
  border: 1px solid var(--border-color);
  padding: 40px;
  border-radius: 8px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-hover);
  margin: 0 auto;
}

.login-container h2 {
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 30px;
  font-weight: 600;
}

.input-group {
  margin-bottom: 20px;
}

.input-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-primary);
}

/* Footer padrão */
.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 30px;
  background-color: var(--secondary-bg);
  color: var(--text-secondary);
  font-size: 0.9rem;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
  margin-left: 240px;
}

/* Cabeçalho de páginas */
header {
  background-color: var(--secondary-bg);
  padding: 30px;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 30px;
  margin-left: 240px;
}

/* Layout para páginas sem sidebar */
.no-sidebar .main {
  margin-left: 0;
}

.no-sidebar .footer {
  margin-left: 0;
}

.no-sidebar header {
  margin-left: 0;
}

/* Controles de formulário */
.controls {
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 10px;
}

/* Estatísticas */
.stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
  margin-top: 25px;
}

.stat-card {
  background-color: var(--secondary-bg);
  padding: 20px;
  border-radius: 8px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

.stat-card h3 {
  color: var(--text-primary);
  margin-bottom: 15px;
  border-bottom: 2px solid var(--button-primary);
  padding-bottom: 5px;
}

.stat-value {
  font-size: 24px;
  font-weight: 600;
  margin: 10px 0;
  color: var(--button-primary);
}

.stat-description {
  color: var(--text-secondary);
  font-size: 14px;
}

/* Indicadores de status */
.status-indicator {
  display: inline-block;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  margin-right: 5px;
}

.status-aprovado {
  background-color: var(--button-success);
}

.status-recuperacao {
  background-color: var(--button-warning);
}

.status-reprovado {
  background-color: var(--button-danger);
}

/* Menu mobile */
.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1001;
  background-color: var(--button-primary);
  color: var(--text-white);
  border: none;
  padding: 10px;
  border-radius: 4px;
  cursor: pointer;
}

/* Responsividade */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
  
  .main {
    margin-left: 0;
    padding: 20px;
    padding-top: 70px;
  }
  
  .footer {
    margin-left: 0;
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
  
  header {
    margin-left: 0;
    padding-top: 70px;
  }
  
  .grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .header {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
  
  .controls {
    flex-direction: column;
  }
  
  .stats-container {
    grid-template-columns: 1fr;
  }
  
  th, td {
    padding: 8px 10px;
    font-size: 14px;
  }
  
  input[type="number"] {
    width: 50px;
    padding: 5px;
  }
}

/* Animações suaves */
* {
  transition: color 0.3s ease, background-color 0.3s ease;
}

/* Melhorias de acessibilidade */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--button-primary);
  outline-offset: 2px;
}

/* Estados de loading */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Utilitários */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-20 { margin-bottom: 20px; }
.mt-20 { margin-top: 20px; }
.p-20 { padding: 20px; }
.hidden { display: none; }

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

@media (max-width: 768px) {
  .sidebar-overlay.active {
    display: block;
  }
}