/* Reset et styles de base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.site-header {
    background: #2c3e50;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.5rem;
    margin: 0;
}

.logo a {
    color: white;
    text-decoration: none;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-logout {
    background: #e74c3c;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    text-decoration: none;
}

/* Navigation */
.main-nav {
    background: #34495e;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.main-nav ul {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    list-style: none;
    display: flex;
    gap: 1rem;
}

.main-nav a {
    color: white;
    text-decoration: none;
    padding: 1rem;
    display: block;
    transition: background 0.3s;
}

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

/* Main content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

/* Boutons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
    transition: background 0.3s;
}

.btn-primary {
    background: #3498db;
    color: white;
}

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

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

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

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Tables */
.data-table {
    width: 100%;
    background: white;
    border-collapse: collapse;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    border-radius: 4px;
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.data-table th {
    background: #f8f9fa;
    font-weight: 600;
}

.data-table tr:hover {
    background: #f8f9fa;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

/* Status badges */
.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.875rem;
}

.status-badge.draft {
    background: #95a5a6;
    color: white;
}

.status-badge.pending {
    background: #f39c12;
    color: white;
}

.status-badge.in_progress {
    background: #3498db;
    color: white;
}

.status-badge.completed {
    background: #2ecc71;
    color: white;
}

/* Footer */
.site-footer {
    background: #2c3e50;
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

.footer-container a {
    color: #3498db;
}

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

    .header-container {
        flex-direction: column;
        gap: 1rem;
    }
}