/* Variables */
:root {
    --primary: #3498db;
    --secondary: #2ecc71;
    --dark: #2c3e50;
    --light: #ecf0f1;
    --danger: #e74c3c;
    --warning: #f39c12;
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  }
  
  /* Reset et base */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--dark);
    background-color: #f5f5f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  a {
    color: var(--primary);
    text-decoration: none;
  }
  
  a:hover {
    text-decoration: underline;
  }
  
  /* En-tête */
  header {
    background-color: var(--dark);
    padding: 1rem 0;
    color: white;
  }
  
  .logo {
    font-size: 1.5rem;
    font-weight: bold;
  }
  
  nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
  }
  
  nav ul {
    display: flex;
    list-style: none;
  }
  
  nav li {
    margin-left: 1.5rem;
  }
  
  nav a {
    color: white;
    font-weight: 500;
  }
  
  nav a.active {
    font-weight: bold;
    border-bottom: 2px solid var(--primary);
  }
  
  /* Contenu principal */
  main {
    flex: 1;
    padding: 2rem 0;
  }
  
  /* Cartes */
  .card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
  }
  
  /* Typographie */
  h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.3;
  }
  
  p {
    margin-bottom: 1rem;
  }
  
  ul, ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
  }
  
  /* Boutons */
  .buttons {
    display: flex;
    gap: 0.5rem;
    margin: 1.5rem 0;
  }
  
  .button {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    text-align: center;
    transition: all 0.2s;
  }
  
  .button.primary {
    background-color: var(--primary);
    color: white;
  }
  
  .button.secondary {
    background-color: var(--secondary);
    color: white;
  }
  
  .button.danger {
    background-color: var(--danger);
    color: white;
  }
  
  .button:hover {
    opacity: 0.9;
    text-decoration: none;
  }
  
  /* Formulaires */
  .form-group {
    margin-bottom: 1rem;
  }
  
  label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
  }
  
  input, textarea, select {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
  }
  
  input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary);
  }
  
  /* Messages d'erreur */
  .error-message {
    background-color: rgba(231, 76, 60, 0.1);
    border-left: 4px solid var(--danger);
    padding: 0.8rem;
    margin-bottom: 1rem;
    color: var(--danger);
  }
  
  /* Login */
  .login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
  }
  
  .login-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
  }
  
  .text-center {
    text-align: center;
  }
  
  /* Liste de contenu */
  .content-list {
    margin-top: 2rem;
  }
  
  .content-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid #eee;
  }
  
  .actions {
    display: flex;
    gap: 0.5rem;
  }
  
  .loading {
    padding: 1rem;
    text-align: center;
    color: #666;
  }
  
  /* Pied de page */
  footer {
    background-color: var(--dark);
    color: white;
    padding: 1.5rem 0;
    margin-top: auto;
  }