.container{max-width:700px;margin:20px auto}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.form label{display:block;margin-top:10px;font-weight:700}.btn-primary{padding:10px 20px;background-color:#17a2b8;color:#fff;border:none;border-radius:6px;cursor:pointer;margin-top:10px}.btn-primary.full-width{width:100%}.btn-logout{margin-left:10px;padding:5px 10px;cursor:pointer}.instances-container{margin-top:20px}.instance-card{display:flex;justify-content:space-between;align-items:center;padding:10px;margin-bottom:10px;border-radius:6px;background-color:#2c3e50;color:#ecf0f1}.delete-btn{background-color:#e74c3c;color:#fff;border:none;padding:5px 10px;border-radius:4px;cursor:pointer}.message{margin-top:15px;padding:10px;border-radius:4px}.message.success{background-color:#2ecc71;color:#fff}.message.error{background-color:#e74c3c;color:#fff}.centered{text-align:center;margin-top:100px}