/* Reset et base */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: #333;
    background: #f9f9f9;
}
#menu ul {
  list-style: none;
  padding: 0;
  display: flex;
  justify-content: center;
  gap: 30px;
  margin: 20px;
}

#menu a {
  text-decoration: none;
  color: white;
  font-weight: 500;
  font-size: 16px;
  padding: 8px 12px;
  border-radius: 8px;
  transition: 0.3s;
  background-color: #0066cc;
}

#menu a:hover {
cursor: pointer;}
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
}

header {
    background: #2c3e50;
    color: white;
    padding: 1rem 0;
}

header h1 a {
    color: white;
    text-decoration: none;
}

nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 1rem;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background 0.3s;
}

nav a:hover {
    background: rgba(255, 255, 255, 0.1);
}

main {
    min-height: 70vh;
    padding: 20px 0;
}

footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 1rem 0;
}

/* Tableaux */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

table, th, td {
    border: 1px solid #ddd;
}

th, td {
    padding: 12px;
    text-align: left;
}

th {
    background: #f2f2f2;
}

tr:nth-child(even) {
    background: #f9f9f9;
}

tr:hover {
    background: #f1f1f1;
}

/* Boutons */
.btn {
    display: inline-block;
    padding: 10px 15px;
    background: #3498db;
    color: white;
    text-decoration: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}

.btn:hover {
    background: #2980b9;
}

.btn-danger {
    background: #e74c3c;
}

.btn-danger:hover {
    background: #c0392b;
}

/* Formulaires */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.form-group textarea {
    min-height: 100px;
}

/* Messages */
.alert {
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 4px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
}

/* Calendrier */
#calendar {
    max-width: 1000px;
    margin: 0 auto;
}

/* Annales */
.annale-item {
    margin-bottom: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Travail hebdo */
.week-item {
    margin-bottom: 2rem;
    padding: 1rem;
    background: white;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.week-item h3 {
    margin-top: 0;
    color: #2c3e50;
}

/* Responsive */
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }
}