/* TabulaVid - Estilo Principal */

:root {
  /* Paleta off-white e pastéis */
  --bg-main: #FAFAF7;
  --bg-card: #FFFFFF;
  --bg-sidebar: #F5F5F2;
  
  /* Cores pastéis */
  --color-primary: #6CA6A3;      /* verde-azulado */
  --color-secondary: #A6BCE0;    /* azul pastel */
  --color-accent: #F2C48D;       /* laranja suave */
  --color-success: #A8D5BA;      /* verde suave */
  --color-warning: #F7DC9B;      /* amarelo suave */
  --color-danger: #F5B7B1;       /* vermelho suave */
  
  /* Textos */
  --text-primary: #2C3E50;
  --text-secondary: #7F8C8D;
  --text-light: #BDC3C7;
  
  /* Sombras suaves */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
}

/* Textura sutil de papel */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.03;
  background-image: 
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,.02) 2px, rgba(0,0,0,.02) 4px),
    repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(0,0,0,.02) 2px, rgba(0,0,0,.02) 4px);
  pointer-events: none;
  z-index: -1;
}

/* Utilitários */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.card {
  background: var(--bg-card);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.3s ease;
}

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

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

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

.btn-primary:hover {
  background: #5a8a87;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background: #8fa5cc;
}

/* Login Page */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.login-card {
  max-width: 420px;
  width: 100%;
}

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

.login-header h1 {
  color: var(--color-primary);
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.login-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

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

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

.form-group input {
  width: 100%;
  padding: 0.875rem;
  border: 2px solid #E8E8E5;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
  background: var(--bg-main);
}

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

.error-message {
  background: var(--color-danger);
  color: var(--text-primary);
  padding: 0.875rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.success-message {
  background: var(--color-success);
  color: var(--text-primary);
  padding: 0.875rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

/* Dashboard Layout */
.dashboard {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  padding: 2rem 1rem;
  box-shadow: var(--shadow-md);
  position: fixed;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-header {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid rgba(0, 0, 0, 0.05);
}

.sidebar-header h2 {
  color: var(--color-primary);
  font-size: 1.5rem;
}

.sidebar-menu {
  list-style: none;
}

.sidebar-menu li {
  margin-bottom: 0.5rem;
}

.sidebar-menu a {
  display: flex;
  align-items: center;
  padding: 0.875rem 1rem;
  color: var(--text-primary);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
  background: var(--color-primary);
  color: white;
  transform: translateX(4px);
}

.main-content {
  flex: 1;
  margin-left: 260px;
  padding: 2rem;
}

.page-header {
  margin-bottom: 2rem;
}

.page-header h1 {
  font-size: 2rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.page-header p {
  color: var(--text-secondary);
}

/* Grid */
.grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Tabelas */
.table-container {
  overflow-x: auto;
}

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

thead {
  background: var(--bg-sidebar);
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #E8E8E5;
}

th {
  font-weight: 600;
  color: var(--text-primary);
}

tbody tr:hover {
  background: var(--bg-main);
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  color: var(--text-secondary);
}

.spinner {
  border: 3px solid var(--bg-sidebar);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 0.8s linear infinite;
  margin-right: 1rem;
}

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

/* Responsivo */
@media (max-width: 768px) {
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .dashboard {
    flex-direction: column;
  }
}