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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: white;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header h1 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 2em;
}

.toolbar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-success {
    background: #48bb78;
    color: white;
}

.btn-success:hover {
    background: #38a169;
}

.btn-danger {
    background: #f56565;
    color: white;
}

.btn-danger:hover {
    background: #e53e3e;
}

.btn-info {
    background: #4299e1;
    color: white;
}

.btn-info:hover {
    background: #3182ce;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 20px;
}

.network-container {
    background: white;
    border-radius: 10px;
    height: 600px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.sidebar {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    height: fit-content;
}

.sidebar h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.sidebar ul {
    list-style: none;
    margin-bottom: 20px;
}

.sidebar ul li {
    padding: 8px 0;
    border-bottom: 1px solid #e2e8f0;
    font-size: 14px;
    line-height: 1.6;
}

.sidebar ul li:last-child {
    border-bottom: none;
}

.info-box {
    background: #f7fafc;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
}

.info-box h4 {
    color: #667eea;
    margin-bottom: 10px;
}

.info-box p {
    margin: 5px 0;
    font-size: 14px;
}

.info-box span {
    font-weight: bold;
    color: #667eea;
}

/* Styles pour les nœuds du réseau */
.network-container canvas {
    border-radius: 10px;
}

/* Modal pour éditer un nœud */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.modal-content h3 {
    color: #667eea;
    margin-bottom: 20px;
}

.modal-content input {
    width: 100%;
    padding: 10px;
    border: 2px solid #e2e8f0;
    border-radius: 5px;
    font-size: 14px;
    margin-bottom: 15px;
}

.modal-content input:focus {
    outline: none;
    border-color: #667eea;
}

.modal-buttons {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .toolbar {
        justify-content: center;
    }
    
    .btn {
        flex: 1;
        min-width: 120px;
    }
}